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AUGUST 2012VOLUME 54NUMBER 8STORM DATAAND UNUSUAL WEATHER PHENOMENAWITH LATE REPORTS AND CORRECTIONSnoaaNATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATIONNATIONAL ENVIRONMENTAL SATELLITE, DATA AND INFORMATION SERVICENATIONAL CLIMATIC DATA CENTER, ASHEVILLE, NC

Cover: This cover represents a few weather conditions such as snow, hurricanes, tornadoes, heavy rainand flooding that may occur in any given location any month of the year. (Photos courtesy of NCDC)TABLE OF CONTENTSPageStorm Data and Unusual Weather Phenomena......…….…....…………...…...........….........................3Reference Notes.............……...........................……….........…..….….............................................487STORM DATA(ISSN 0039-1972)National Climatic Data CenterEditor: Rhonda HerndonSTORM DATA is prepared, and distributed by the National Climatic Data Center (NCDC), NationalEnvironmental Satellite, Data and Information Service (NESDIS), National Oceanic and AtmosphericAdministration (NOAA).The Storm Data and Unusual Weather Phenomena narratives and Hurricane/Tropical Storm summaries areprepared by the National Weather Service. Monthly and annual statistics and summaries of tornado andlightning events resulting in deaths, injuries, and damage are compiled by the National Climatic Data Centerand the National Weather Service’s (NWS) Storm Prediction Center.STORM DATA contains all confirmed information on storms available to our staff at the time of publication.Late reports and corrections will be printed in each edition.Except for limited editing to correct grammatical errors, the data in Storm Data are published as received.Note: “None Reported” means that no severe weather occurred and “Not Received” means that no reportswere received for this region at the time of printing.Subscription, pricing, and ordering information is available from:NOAA \ National Climatic Data CenterAttn: User Engagement & Services Branch151 Patton AvenueAsheville, NC 28801-5001(828) 271-4800, option 2 (Customer Services)The editor of STORM DATA solicit your help in acquiring photographs (prints or slides; black and white, orcolor), maps, clippings, etc. of significant or severe weather events (past or present) for use in the“Outstanding Storms of the Month’’ section of STORM DATA. We request our subscribers or otherinterested persons to mail such items to:Storm DataNational Climatic Data Center151 Patton AvenueAsheville, NC 28801-5001e-mail: storm.data@noaa.govAny such items received by the editor will be for use in STORM DATA only. Any other use will be with thepermission of the owner of said items. Materials will be returned if requested.This is an official publication of the National Oceanic and Atmospheric Administration and is compiled from informationreceived at the National Climatic Data Center Asheville, North Carolina 28801-5001.2Thomas R. KarlDirector,National Climatic Data Center

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALABAMA, CentralTuscaloosa County2 NNE River View 07 1250CST1400CST 0 0 0.00K 0.00K Heavy RainA period of brief heavy rainfall and poor drainage issues led to approximately a foot of standing water over several roadways inTuscaloosa.On August 6 and 7, a front stalled to the northwest of Central Alabama and outflow boundaries from convection along the frontpushed into the area. These boundaries combined with a weakness in the upper level ridge pattern and a moist airmass resultedin thunderstorms and locally heavy rain.St. Clair County2 NNE Moody 09 1035CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several trees were reported down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Clair County1 N Wattsville 09 1052CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Several trees were reported down in the Wattsville and Ragland areas.Shelby County1 S New HopeParamountNote: The estimated wind gust of 55 knots is equivalent to 63 mph.09 1630CST1830CST 0 0 0.00K 0.00K Flash FloodSeveral roads across northern Shelby County were impassible due to over 6 inches of flowing water over the roadway,including Highway 119 near Indian Springs Town Hall, as well as Cahaba Oaks Trail.In response to a shortwave crossing the region, a cluster of thunderstorms developed in Mississippi and pushed into CentralAlabama on Thursday, August 9. Instability across the local area was limited by cloud cover, but the airmass was rather moistwith precipitable water values over 2 inches. Thunderstorms caused isolated wind damage and locally heavy rain.Tuscaloosa County1 ENE Cedar Cove 10 1645CST 0 0 0.00K 0.00K Hail (0.75)Shelby County2 SE Acton 10 1747CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Trees were reported down along Chandabrook Drive in Pelham, as well as near the intersection of Chelsea Road and TaraDrive in Chelsea.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Blount CountyOneonta 10 2030CST2200CST 0 0 0.00K 0.00K Heavy RainHeavy rainfall and poor drainage led to approximately two feet of standing water over the roadway at the intersection of FirstAvenue East and Springville Boulevard in downtown Oneonta.Ahead of a cold front stretching across the Tennessee Valley and Central Mississippi, scattered thunderstorms developed andmoved into Central Alabama on Friday, August 10. Cloud cover kept instabilities low during much of the day. However, bylate afternoon, skies cleared and instabilities increased with CAPE values over 3000 J/kg. Thunderstorms produced isolatedwind damage and locally heavy rain.Tuscaloosa County4 SSE New Lexington 13 1120CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A porch awning and roof of a single wide mobile home were blown off and two outbuildings sustained roof damage.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.4

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALABAMA, CentralLamar County1 ENE Crews 13 2030CST2259CST 0 0 0.00K 0.00K Flash FloodPeriods of heavy rainfall led to 6 inches of flowing water over Highway 278 in Sulligent, as well as Highway 18 in Vernon.On Monday, August 13, a shortwave resulted in thunderstorm development in Mississippi. As this activity moved east, itdeveloped into a mesoscale convective system (MCS) and tracked across Central Alabama. The MCS weakened as itencountered a more stable environment across the eastern half of the state, but not before it caused isolated wind damage andflash flooding.Pickens County4 NW Carrollton 18 0412CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down on County Road 26, between Pine Grove and Carrollton.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tuscaloosa County2 NNE Ralph 18 0440CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)A tree was reported down on Sipsey Valley Road, west of Wesley Chapel Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Tuscaloosa County1 S Box Spgs 18 0520CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Trees were reported down along Stone Hill Lane. Additionally, powerlines were reported down along Windermere Drive.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Bibb County1 SW Lucille 18 0543CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Three trees were reported down along County Road 24.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Bibb County2 NNW West Blocton 18 0547CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Two trees were downed in West Blockton.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Marengo County1 N Linden 18 1707CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)ALABAMA, NorthApproximately 12 large hardwood trees were snapped or uprooted in the city of Lindon.On Saturday, August 18, a front slowly sagged southward into Central Alabama. Along this boundary, a mesoscale convectivesystem (MCS) developed in Mississippi during the early morning hours, and track along and south of the front across CentralAlabama. In the wake of this thunderstorm complex, additional storms developed through the day across the area but remainedbelow severe limits. With dew points in the 70s and CAPE values rising near 3500 J/kg, the airmass was becoming increasinglyunstable through the afternoon. A second MCS developed in Mississippi and pushed across south Central Alabama during theevening hours. This complex gradually weakened, but not before producing significant damage in Marengo county. Note: Theestimated wind gust of 70 knots is equivalent to 81 mph.ALZ001-002Colbert - Lauderdale01 1400CST1600CST 0 0 0.00K 0.00K HeatTemperatures exceeded 100 degrees on the 1st and 2nd of the month of August.5

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALABAMA, NorthDekalb County2 N Ten Broeck5 NW Fyffe09 1250CST1400CST 0 0 0.00K 0.00K Flash FloodSeveral inches of water was over the road along County Road 43 between Green's Chapel and Matthew's Bridge between Fyffeand Grove Oak, Alabama.Dekalb County2 N Ten Broeck 09 1300CST 0 0 25.00K 0.00K LightningLightning caused a house fire between Fyffe and Powell, Alabama.Dekalb County6 ESE Ft Payne Jennings Ar 09 1530CST1531CST 0 0 10.00K 0.00K Thunderstorm Wind (43EG)Multiple trees were blown down by thunderstorm winds.An area of thunderstorms formed in northeast Alabama and produced isolated wind damage, flash flooding and severallightning strikes. Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Madison County2 N Maple Hill 10 1444CST1445CST 0 0 10.00K 0.00K Thunderstorm Wind (43EG)A few trees and power lines were downed by thunderstorm winds at Pulaski Pike and Macedonia road.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Limestone County1 S Copeland Co 10 1507CST 0 0 20.00K 0.00K LightningLightning caused two structural fires, one on the 19000 block of East Limestone road and also on Meadows road.Madison County3 NW Madison2 SSW Nebo10 1645CST1815CST 0 0 0.00K 0.00K Flash FloodVery heavy rain produced flash flooding around the intersection of County Line Road and Brownsferry/Gillespie Road. A carwas partially under water just east of this location (Gillespie Road) and a COOP weather station just west of this intersectionreported 3.59 inches of rainfall in about 1 hour.Near intersection of County Line Road and Brownsferry/Gillespie Road (Madison/Limestone county line).7

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALABAMA, SoutheastCoffee County2 ESE Kinston2 SSE Rhoades30 0145CST0148CST 2.56 35 0 0 5.00K 0.00K Tornado (EF0)The Coffee county emergency manager reported minor damage to structures in far southwest Coffee county. This was theresult of a weak tornado moving out of northwest Geneva county. The Coffee county portion of this tornado was rated EF0.Monetary damage was estimated.The outer remnants of Hurricane Isaac spawned an EF1 tornado in Geneva county.ALABAMA, SouthwestALZ053Clarke03 1400CST 1 0 0.00K 0.00K HeatAs is typical along the Central Gulf Coast Region for early August, on this day late morning and afternoon temperatures werein the middle 90s with heat index readings climbing to around 105. M38OUClarke CountyJackson 04 1758CST 0 0 5.00K 0.00K LightningLightning struck the Jackson hospital causing the evacuation of 9 patients due to smoke in air conditioning system.A strike hit a hospital causing an evacuation due to smoke.ALZ063-064Lower Baldwin - Lower Mobile28290600CST1800CST 0 0 0.00K 0.00K Tropical StormMobile County1 NW Dawes 29302100CST1500CST 0 0 0.00K 0.00K Heavy RainStorm total rainfall of 14.53 inches of rain received for Isaac through 4 pm Aug 30th.Choctaw County1 E Toxey 30 0958CST1000CST 0.01 50 0 0 5.00K 0.00K Tornado (EF0)ALASKA, NorthernA weak tornado briefly touched downing a few trees near Toxey.Hurricane Isaac moved into central Louisiana. This track brought storm surge...flooding...and isolated tornadoes to the centralgulf coast.AKZ213St Lawrence Island Bering Strait15 1252AKS1658AKS 0 0 0.00K High WindAn unusually strong for August 982 mb low in the southern Chukchi Sea produced high winds at Teller along the Bering StraitCoast and at Cape Lisburne along the western Arctic Coast on the afternoon of the 15th.Zone 201: The wind gusted as high as 72 mph/63 kt at the Cape Lisburne AWOS at 1320AKST. The wind frequently gusted ashigh as 60 mph/52 kt from approximately 1205AKST through 1622AKST.Zone 213: At Teller there was a peak wind gust of 64 mph/56 kt at the Teller AWOS at 1558AKST on the 15th. The windfrequently gusted as high as 60 mph/52 kt from approximately 1252AKST through 1658AKST.Lower Kobuk & Noatak Valleys32 NNW Noatak 15172100AKS0300AKS 0 0 0.00K 0.00K Flood10

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALASKA, NorthernBaldwin Pen. & Selawik Valley2 NE Kotzebue 16171200AKS 0 0 0.00K 0.00K FloodChukchi Sea CoastKivalina 16 1800AKS 0 0 0.00K 0.00K Flood17A trough of low pressure began to develop in the southern Chukchi Sea on August 11, 2012. The trough developed into aclosed low aloft near Wrangel Island by the 14th, and the low continued to wobble around in the Chukchi Sea through the 20th.The low produced a long fetch of moist southwest flow aloft and combined with several surface lows and frontal boundaries totransport copious moisture into parts of the western Brooks Range, Chukchi Sea coast, and parts of the Seward Peninsula.Extraordinary rainfall amounts were observed in a few spots. The Red Dog Mine observed a 7-day storm total of 8.79 inchesof rain, and a 9-day total of an amazing 10.38 inches, which is well in excess of half of the average annual rainfall. TahinichokRemote Automated Weather Station, which is located approximately 15 miles west of Noatak observed a 7-day rainfall total of7.47 inches. Kivalina, along the immediate Chukchi Sea coast observed a 7-day total of 4.93 inches. Nome, which is along thesouthern Seward Peninsula, had a week long total of 3.74 inches. A runway closure at Nome was compounded by the heavyrainfall, and caused seven Alaska Airlines flights to be cancelled and there were no cargo flights all week.The Wulik River, which is one of only a handful of automated river gages in northwest Alaska, observed a record crest at0500AKST on the 16th of 15.31 feet or 75,320 CFS. This is the highest crest observed since the gage was installed in 1985.The old record high crest was 12.21 feet on August 17, 1994. By comparison, prior to the heavy rain the river was flowing atonly 1,250 CFS or only about one sixtieth of what was observed after the heavy rainfall. Somewhat lighter rain continued tofall after the crest on the morning of the 16th which led to additional crests on the 17th, 19th and 22nd. At the peak crest on themorning of the 16th, the USGS estimated that the Wulik River gage had at least 6 inches of water in the gage house. The riverwould be well above bankfull and likely spread out one half to one mile overbank on the west side of the river. A huntinglodge downriver from the gage was likely under 3 to 4 feet of water.The high volume of water draining from the Wulik and nearby Kivalina River filled the Kivalina lagoon faster than it coulddrain out to sea on August 16th. This resulted in an unusual flooding scenario in the village of Kivalina. The water level on thelagoon rose to the point where it was topping over the lower banks and getting under some houses, and washed over the villagedump site. The high water damaged the pipe that runs between the village and the intake at the mouth of the Wulik River. Veryturbid water from the high flows prevented the village from pumping fresh water which led to a water shortage in the village,and bottled water had to be flown in. The water shortage cancelled the start of the school year as the school and teacherhousing was without clean water. It was estimated that the school may not open until October 1st.At Kotzebue, waves estimated at 4 feet high in the lagoon sank one boat that had its bow on the beach but the back end filledfrom the breaking waves. The water levels begin to fall on the morning of the 17th.On the afternoon of the 16th the Red Dog Mine reported that the water levels were high and creeks were overbank andflooding. Culverts were at full capacity and there was some slumping of roadways around the mine. Otherwise, the minereported no significant impacts or damages to their infrastructure.AKZ213St Lawrence Island Bering Strait23242250AKS0251AKS 0 0 0.00K 0.00K High WindA strong occluded front associated with a 976 mb low in the Gulf of Anadyr approached the Bering Strait coast late on theevening of the 23rd into the early morning of the 24th. There was a peak wind gust to 62 kt/71 mph at the Wales AWOSduring the early morning hours of the 24th. The wind gusted over 60 mph at times from 2250AKST on the 23rd through0116AKST on the 24th. At Teller, there was a peak wind gust to 52 kt/60mph at the Teller AWOS at 0251AKST on the 24th.AKZ209Baldwin Peninsula & Selawik Valley25 0230AKS1900AKS 0 0 0.00K 0.00K Coastal Flood11

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ALASKA, NorthernA 984 mb low near Point Hope at 2100AKST on the evening of the 24th weakened to 991 mb between Point Hope and PointLay at 0300AKST on the morning of the 25th. The low drifted to near Barrow and weakened to 998 mb by 2100AKST on theevening of the 25th. A west to southwest winds increased to 25 to 40 mph late on the evening of the 24th and continued intothe early morning hours of the 25th. It was estimated that seas may have built as high as 13 feet in the sound and that the waterlevels rose nearly 10 feet above normal. The water levels were reported to be the highest since 1989. The airport runwaywhich is about 10 feet above the lagoon was nearly inundated with water, and several feet of water poured into areas aroundnumerous homes. Most of the homes are built on pilings which prevented water from entering the structures. There werereports that several small boats were sunk and there was major coastal erosion. Waves crashed over the seawall, but the waterlevel did not rise to the point where the seawall was under water.ARIZONA, Central and NortheastCoconino County1 SE Havasupai 01 0300MST0800MST 0 0 0.00K 0.00K Flash FloodFlood waters from heavy rain that fell on Tuesday evening (July 31) reached Supai Village between 230 and 300 AM. Water upto several feet caused trails and bridges to become impassible. This stranded several hikers and flooded area campgrounds.Thunderstorms with heavy rain in the Cataract/Havasu Creek drainage during the evening of August 2nd caused floodingproblems in the Village of Supai and the Havasupai Campground.Coconino County1 S Phantom Ranch 03 1100MST1200MST 0 0 0.00K 0.00K Heavy RainHeavy rain from thunderstorms caused damage to the River Trail on the south side of the Colorado River about a mile fromPhantom Ranch. The heavy rain also caused a rock fall that injured a 19 year old hiker in a narrow canyon about 5 miles northof Phantom Ranch.Thunderstorms with heavy rain caused a rock fall north that injured a hiker on the north side of the Colorado River. The heavyrain cause damage to the River Trail on the south side of the Colorado River.Coconino County18 NW Marble Canyon14 W Page Wahweap Arpt20 0100MST0130MST 0 0 0.00K 0.00K Flash FloodA river gage in Paria Canyon measured a four foot rise in less than 30 minutes on the Paria River.Thunderstorms produced heavy rain in the Paria River Basin in Utah. The water flowed southeast into Arizona and caused flashflooding in the Paria River.Apache County2 N Alpine 20 1230MST1530MST 0 0 0.00K 0.00K Flash FloodHeavy rain fell for 30 minutes northwest of Alpine. Three feet of water covered a country road. Highway 180 was also closeduntil the water receded and the debris was cleared.Heavy rain from thunderstorms caused flash flooding and closed Highway 180 north of Alpine until debris could be clearedfrom the road.Coconino County4 NNE Blue Ridge 21 1245MST1900MST 0 0 0.00K 0.00K Flash FloodA climber in Jacks Canyon downstream from the Canyon Fire area reported heavy rain and hail started around 1215. He alsostated: The primary stage of the flood was from 1245-1430. Secondary stage from 1430-1630 and tertiary 1630- until we exitedaround 1845. The next morning the water was still flowing but had decreased by 80% or so. During the storm we were havinglightning strikes with in a mile every 90secs between 1230-1430. Hail and high winds for 15-30 minutes around 1300. Hailstones around 4-8mm.I would guess that the size and energy of the flood had to do more with the fact that it was a recent fire area. The storm didmove from the East to the South West which pretty much follows the topography of the canyon. The debris was mostly firedamage trees and soil.No other reports of flooding in that area were received.12

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, Central and NortheastVery strong thunderstorms over the Canyon Fire area caused flash flooding in Jacks Canyon.Yavapai County4 NW Bagdad 21 1530MST1730MST 0 0 0.00K 0.00K Flash FloodHeavy rain (2.23 inches) fell over the Bagdad area. This caused flash flooding in the Bagdad Mine area. Portions of Highway97 where washed out from mile marker 159 to 165.Thunderstorms in the Bagdag area of far southwest Yavapai County caused heavy rain and flash flooding.Gila County8 NNE Young 21 1558MST1658MST 0 0 0.00K 0.00K Flash FloodHeavy rain over the Fire area caused a mud and rock slide over Road 512 (Heber-Young Road). Road crews were called toclear the mud and debris from the road.Heavy rain from thunderstorms caused flash flooding, mud, and rock slides over the Young Heber Road.Yavapai County1 SW West Sedona1 NW Oak Creek Canyon Arp23 0139MST0339MST 0 0 0.00K 0.00K Flash FloodSunset Wash overflowed on to Sunset Drive. Police set up barricades to close the road.Apache County3 NW St Johns Muni Arpt 23 0715MST0815MST 0 0 0.00K 0.00K Heavy RainStreet flooding was reported in St Johns. Manhole covers were being displaced because there was so much water.Apache County3 NE Cornfield 23 0810MST0910MST 0 0 0.00K 0.00K Flash FloodHeavy rain caused two feet of water to flow over Navajo Route 15 near the community of Cornfields.Apache CountySt Johns Muni Arpt 23 1616MST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)A peak wind gust of 70 MPH was recorded at the St Johns Airport. Law enforcement also reported that trees were blown downin town.An upper level low pressure area over southern Nevada acted upon moisture already in place over northern Arizona to produceshowers and thunderstorms with heavy rain and strong winds. Note: The measured wind gust of 61 knots is equivalent to 70mph.Coconino County5 NNW Cosnino8 W Sunset CraterARIZONA, Northwest26 1500MST1600MST 0 0 0.00K 0.00K Heavy RainHeavy rain over the Schultz Fire area washed out a couple of driveways and a portion of Brandis Way.Thunderstorms dropped heavy rain over the area that was burned by the Schultz Fire (2010) causing water to flow into theneighborhood below.Mohave CountyPeach Spgs 09 1550MST 0 0 2.00K 0.00K Thunderstorm Wind (40EG)Thunderstorm winds blew trampolines into power lines.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.13

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, NorthwestMohave County5 WSW Dolan Spgs 09 1640MST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)Three power poles were blown down in Dolan Springs.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mohave County3 NNW Dolan Spgs 09 1642MST1900MST 0 0 1.00K 0.00K Flash FloodPierce Ferry Road was closed at mile marker 15 due to flooding.Mohave County1 NNW Peach Spgs 09 1647MST1800MST 0 0 1.00K 0.00K Flash FloodMud washed onto Diamond Creek Road north of Peach Springs.Mohave County8 NNW Hualapai 09 1700MST1900MST 0 0 1.00K 0.00K Flash FloodMohave County3 E Bullhead City Arpt1 N Bullhead CityStockton Hill Road was flooded and closed.09 1758MST1845MST 0 0 400.00K 0.00K Thunderstorm Wind (60MG)A thunderstorm outflow moved east to west across Bullhead City, producing measured gusts to 69 and 68 mph, knocking downnumerous power poles and lines, taking roofs and awnings off a number of mobile homes, blowing sheds over, and blowingdown at least three large trees, one of which damaged a home and one of which damaged a car. Several tents collapsed andportable toilets were blown over at a party at the community park. Fences and signs were also damaged. Visibility was reducedto less than a quarter mile in blowing dust.Note: The measured wind gust of 60 knots is equivalent to 69 mph.Mohave County8 S (IGM)Mojave Co Arpt 09 1830MST1930MST 0 0 1.00K 0.00K Flash FloodSmall amounts of mud washed onto Hualapai Mountain Road between the 5500 and 6000 foot levels.Mohave County7 NNE Golden Shores5 S Mohave Valley09 1845MST1855MST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)Thunderstorm outflow winds blew down power lines and damaged fences and signs in Golden Shores and Mohave Valley.Monsoon moisture began to return from the southeast, fueling strong thunderstorms over the eastern Mojave Desert. Severalstorms produced severe weather and/or flash flooding. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Mohave County1 SE New Kingman-Butler 11 1933MST2100MST 0 0 1.00K 0.00K Flash FloodBank Street was completely under water near the high school.Mohave County2 ESE Getz 11 1947MST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)Thunderstorm winds knocked down two trees near Airway and Heather.Monsoon moisture fueled another round of thunderstorms over the Mojave Desert and southern Great Basin. Several stormsproduced severe weather and flash flooding. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.14

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, NorthwestMohave County4 NNE Walapai 20 1420MST1430MST 0 0 0.00K 0.00K Hail (1.25)Mohave County4 NNE Walapai 20 1423MST1433MST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)The same storm which produced large hail and flash flooding produced wind gusts estimated at 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Mohave County3 NNE Walapai 20 1428MST1530MST 0 0 1.00K 0.00K Flash FloodTen inches of water and mud flowed down Brigade Drive.Mohave County1 NNE Wikieup 20 1550MST1555MST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds tipped over a pergola in Wikieup.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Mohave County10 S Mt Trumbull 20 1556MST1800MST 0 0 50.00K 0.00K Flash FloodSeveral roads on the way to the Bar Ten Ranch were washed out. In addition, a wall of water, mud, boulders and trees washedout of the mouth of Fern Glen Canyon at Mile 168 of the Colorado River.Mohave County1 NNE Wikieup 20 1718MST1830MST 0 0 2.00K 0.00K Flash FloodMud and debris covered Highway 93 at Chicken Springs Road.Mohave County5 SSW (IGM)Mojave Co Arpt 20 2015MST2100MST 0 0 2.00K 0.00K Flash FloodWater and debris covered Hualapai Mountain Road between mile markers 5 and 6.Mohave County1 N Peach Spgs 21 1615MST1800MST 0 0 250.00K 0.00K Flash FloodDiamond Creek Road was washed out all the way from the Peach Springs turnoff to the Colorado River.Mohave County11 W Temple Bar Marina 22 1400MST1430MST 0 0 1.00K 0.00K Flash FloodDebris washed over Temple Bar Road.Mohave County2 ESE Kingman 22 1732MST1800MST 0 0 1.00K 0.00K Flash FloodThree inches of water along with small rocks flowed through the intersection of Hualapai Mountain Road and Eastern Street.15

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, NorthwestMohave County8 S (IGM)Mojave Co Arpt 22 1806MST1900MST 0 0 5.00K 0.00K Flash FloodARIZONA, SouthSwiftly moving water along with large rocks and debris ran across Hualapai Mountain Road between mile markers 9 and 10.Another surge of monsoon moisture led to an outbreak of thunderstorms over the Mojave Desert and southern Great Basin. Alow pressure system further enhanced the storms on the 22nd.AZZ502-505-506South Central Pinal County - Southeast Pinal County - Tohono O Odham Nation01210000MST1200MST 0 0 DroughtEnough rainfall occurred during August to ease drought conditions slightly in Pinal County.Pima County2 W Littletown3 NNW Tucson05 1815MST1845MST 0 0 80.00K 0.00K Thunderstorm Wind (60EG)Thunderstorm winds knocked down 15 power poles along Alvernon Way between Valencia Road and Benson Highway. Asstorms moved northwest, a church roof was damaged near 36th and Country Club, numerous trees were downed or uprooted incentral and east Tucson and a carport was destroyed on the east side of the city. Another power pole was downed near 5th andCountry Club while three others were downed near Prince and Campbell. About 12,000 residents lost power as a result.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Pima County1 WNW Continental 05 1900MST1905MST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds downed a large tree and damaged a pool canopy at the Green Valley Recreation Club.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pima County6 ENE Oro Vly 05 1918MST1925MST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds downed a tree in Catalina.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pima County4 E Rillito 05 1930MST 0 0 1.00K 0.00K LightningLightning struck a palm tree near Tangerine and Twin Peaks Road causing it to ignite.A mid level trough traveled northwest around elongated upper level high pressure, which stretched from eastern Arizonaeastward to Arkansas. The trough, accompanied by increased mid level moisture, enhanced thunderstorms over Santa Cruz,Pima and Pinal Counties. Thunderstorms produced damaging wind gusts in Pima County.Pima County3 SW Sells3 NE Gu Oidak06 1440MST1450MST 0 0 35.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds snapped several power poles southwest of Sells and damaged homes in Big Fields. Three of the homessustained major roof damage.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Pima County7 SSE Three Pts 06 1718MST1723MST 0 0 25.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds caused roof damage to one residence and damaged several sheds at Diamond Bell Ranch. An eight inchbrick wall was blown over on to a car.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.16

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthPinal County4 SW Avra 06 2014MST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)The AWOS at Pinal Air Park (KMZJ) recorded a gust to 67 mph.Santa Cruz County(OLS) nogales Intl Arpt2 E NogalesNote: The measured wind gust of 58 knots is equivalent to 67 mph.06 2132MST2150MST 0 0 10.00K 0.00K Thunderstorm Wind (57MG)Thunderstorm winds registered a gust to 66 mph at the Nogales Airport then caused major roof to a home on the eastern side ofthe city along Royal Road.A mid level trough acted on ample moisture to produce thunderstorms capable of producing damaging winds across Santa Cruzand western Pima Counties. Note: The measured wind gust of 57 knots is equivalent to 66 mph.Cochise CountyHuachca Vlg 07 2140MST2210MST 0 0 75.00K 0.00K Heavy RainAfter thunderstorm winds ripped a 50 foot section of the roof off the Huachuca City School, heavy rain infiltrated the building,damaging six classrooms.Cochise County1 SSE Huachca Vlg 07 2140MST2145MST 0 0 30.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds ripped off a 50 foot section of the roof at the Huachuca City School. Part of the roof landed on a powerline causing a power outage for area residents. One tree was also uprooted, damaging a chain link fence. The ASOS at LibbyField on the Fort Huachuca base measured a gust to 62 mph as storms moved through.Another mid level trough traversed the southern periphery of the monsoon high, producing thunderstorms over Santa Cruz andsouthern Cochise Counties. Some of these thunderstorms produced damaging winds. Note: The estimated wind gust of 56knots is equivalent to 64 mph.Cochise County4 NW Hereford 08 1617MST1624MST 0 0 0.50K 0.00K Thunderstorm Wind (54MG)Spotters in Hereford measured thunderstorm wind gusts to 62 mph and reported shingles blown off the roof of one house.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Pima County5 ESE Sabino 08 1630MST1640MST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds downed power lines in far northeast Tucson leaving over 3000 residents without power.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pinal County15 ENE Avra 08 1802MST1829MST 0 0 3.00K 0.00K Thunderstorm Wind (52MG)Thunderstorm winds damaged several trees in Oro Valley, Marana and Casas Adobes on the northwest side of the Tucsonmetro area. A spotter near Oracle Junction measured a wind gust of 60 mph.As the monsoon high shifted northward, moisture increased across all of southeast Arizona, resulting in widespreadthunderstorms. Some of these thunderstorms produced damaging wind gusts. Note: The measured wind gust of 52 knots isequivalent to 60 mph.Pima County4 NNE Lukeville 10 1550MST1555MST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds ripped off about 40 feet of the roof to the auditorium at the Organ Pipe National Monument VisitorCenter.17

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthPima County2 SSW South Tucson3 WSW Old TusconAnother mid level trough tapped adequate moisture to produce thunderstorms south and west of Tucson. Damaging wind gustsresulted. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.11 1330MST1415MST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds downed a tree at Mission Manor Park in Tucson and flipped over a loosely anchored small metal shed atSan Joaquin Road and West Milky Way Drive.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pima County6 NE Oro Vly 11 1455MST1500MST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds downed a tree at Catalina Regional Park. The tree fell on a park shelter, damaging the roof.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Pima CountyAli Chuk 11 1530MST1535MST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds damaged three homes and a cellular tower near Menager's Dam.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Pima CountyTatrai Toak 11 1630MST1635MST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds damaged two homes in Hickiwan. One home sustained considerable roof damage.A continued southeast flow of moisture coupled with a mid level trough resulted in thunderstorms over Pima and PinalCounties. Several storms produced damaging wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Pima County1 SSE Gu Achi4 WSW Anegam13 1453MST1458MST 0 1 150.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds damaged 33 homes in Santa Rosa. Two homes had the entire roof blown off and had at least one walldamaged severely. Nine other homes sustained major damage. Some of these had a portion of their roof blown off while otherswere trailer homes that were completely blown off their foundations. One villager sustained minor injuries inside one of thehomes. The rest of homes that were damaged either had shingles blown off or had broken windows. Electrical service was outfor seven hours.Drier southwest air aloft clashed with moisture in place over southeast Arizona. This resulted in enhanced wind gusts inthunderstorms over western and central Pima County. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Pima County1 ESE Ventana 15 0155MST0200MST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)Santa Cruz County4 WSW Nogales3 WSW CalabasasThunderstorm winds damaged roofs to two homes in Ventana.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.15 1938MST2300MST 0 0 30.00K 0.00K Flash FloodBetween two and four inches of rain fell across parts of Santa Cruz County. Several motorists were rescued from their vehiclesin Nogales and Rio Rico as water ran across roads to depths over three feet in some spots. Another swift water rescue occurredat the Potero Wash along South River Road. In addition, Nogales Wash came out of its banks and flooded nearby businesses inNogales.A mid level trough returned with abundant moisture from the southeast to generate thunderstorms across southeast Arizona.Some storms produced heavy rain and flash flooding while others produced damaging wind gusts.18

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthSanta Cruz County(OLS) nogales Intl Arpt5 WNW Nogales17 0800MST1100MST 0 0 25.00K 0.00K Flash FloodThunderstorms produced between 2 and 3 inches of rain in less than one hour in Nogales. Rainfall totals reached over 4 inchesin some locations. The result was severe urban flooding with water as deep as three feet in the streets of Nogales. Severalmotorists were rescued from the flood waters in the city and at least one home was flooded with a foot of water. The NogalesWash briefly topped its banks, covering the railroad tracks which halted all rail traffic into Mexico. Flood waters caused a 20foot retaining wall to collapse. Debris flew threw a window, crushing an air conditioning unit and allowing water and mudinside the home. Flood waters also damaged an underground telephone cable leaving about 200 customers without telephoneservice.Pima County3 ESE Pantano 17 1240MST1310MST 0 0 20.00K 0.00K Flash FloodHeavy rain caused flash flooding along Interstate 10 west of Mescal and ponding of water three feet deep in the Marsh StationRoad underpass. One person was injured in a crash on the interstate after the driver lost control of the vehicle in the floodwaters.Cochise County12 NW Paradise 17 1415MST1445MST 0 0 10.00K 0.00K Debris FlowHeavy rain of nearly 3 inches fell on parts of the Chiricahua National Monument, much of which was affected by theHorseshoe 2 Wildfire in 2011. Flash flooding and a 2 to 3 foot debris flow damaged trails and the Bonita Canyon Campground.Bonita Canyon Drive was also covered by the debris flow. The area was subsequently evacuated. The campground remainclosed until August 30th.Pima County1 NW Tatrai Toak 17 1600MST1700MST 0 0 20.00K 0.00K Flash FloodHeavy rain caused Hickiwan Wash to overflow its banks. Two homes near the wash were flooded and several roads wereclosed.Around 2 inches of precipitable water was acted upon by a mid level trough to produce thunderstorms which droppedextremely heavy rain in southeast Arizona. Flash flooding was the result.Cochise County1 S (DUG)Bisbee Douglas 19 1700MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Note: The measured wind gust of 52 knots is equivalent to 60 mph.Pima County6 ENE Littletown 19 1938MST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds downed a six inch tree branch near Drexel and Houghton Roads.Pima County7 SSW Redington9 E (DMA)Davis Monthan ANote: The estimated wind gust of 50 knots is equivalent to 58 mph.19 1955MST2145MST 0 0 5.00K 0.00K Flash FloodHeavy rain from numerous thunderstorms caused several roads to be closed due to flash flooding across the Tucsonmetropolitan area, including Snyder Road near the Ventana Wash, Redington Road, West Valencia Road and the StoneAvenue underpass. Three vehicles became stranded in flood waters near Pima and Country Club Roads.Pima County3 SSE Casas Adobes 19 2014MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.19

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthPima CountyGu Achi 19 2103MST2133MST 0 0 0.00K 0.00K Flash FloodHeavy rain flooded and closed several roads near Santa Rosa.Pima County1 WNW Jaynes 19 2215MST2230MST 0 0 20.00K 0.00K Flash FloodHeavy rain and runoff from earlier rain caused flash flooding on the west and northwest side of Tucson, forcing the closure ofseveral roads. One vehicle was washed away at Sunset and Silverbell Roads and several vehicles were stranded in theintersection.A mid level trough approached from the northeast and acted on attendant moisture to produce thunderstorms, flash flooding anddamaging winds across eastern and central Pima County.Pima County3 NW Komelik2 SSW Kahachi Miliuk20 1820MST1920MST 0 0 0.00K 0.00K Flash FloodHeavy rain caused most washes that cross Indian Road 19 to flow rapidly. Motorists were rescued from their vehicle nearSouth Komelik.Abundant moisture remained in place. The monsoon high was nearly overhead which resulted in isolated but very slow movingthunderstorms that produced heavy rain and flash flooding.Pima County1 NW Tucson 21 1645MST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorms winds toppled trees near Grant and Oracle Roads. One tree fell on top of a car.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Pima CountyOld Tuscon 21 1655MST 0 0 0.00K 0.00K Hail (0.75)Pima County8 WSW Naviska21 1815MST8 SW Tuscon Marana Nw Airport 1945MST 0 0 0.00K 0.00K Flash FloodHeavy rain caused flash flooding and the closure of several roads just west of Tucson including Pump Station and El TiroRoads.Pima County1 NW Gurli Put Vo1 N Maish Vaya21 1930MST2130MST 0 0 10.00K 0.00K Flash FloodTwo to four inches of heavy rain caused flash flooding of streets and homes in Covered Wells.Pima County6 WNW Anegam12 WNW Silver Bell21 2030MST2130MST 0 0 10.00K 0.00K Flash FloodHeavy rain caused flash flooding in Santa Rosa where at least two homes were flooded.Pima County1 NE Pisinimo1 W Peach Pu22 0300MST1200MST 0 0 10.00K 0.00K FloodHeavy rain which totaled between three and five inches began the previous afternoon and continued into the night in theQuijotoa Mountains. Pisinimo Wash filled and flooded parts of the downstream community of Pisinimo, although sandbagginghelped prevent major damage. Flood watesr continued down San Simon Wash and when combined with runoff from Gu VoWash, flooded areas south toward the international border, including Route 18.20

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthPima County10 NNE Anegam 22 1555MST2000MST 0 0 2.00K 0.00K FloodVery heavy rain that began the previous afternoon and continued through the night, totaled 3 to 5 inches upstream near theQuijotoa Mountains. Runoff in Santa Rosa Wash damaged a berm along Route 15 causing water to flow across and close thisroad near North Komelik.Abundant moisture trapped under the monsoon high resulted in widespread thunderstorms over all but far eastern sections ofsoutheast Arizona. Storms produced very heavy rain, flash flooding and damaging wind gusts.Cochise County1 S (DUG)Bisbee Douglas 27 1805MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)ARIZONA, SouthwestWith the monsoon high centered over Colorado, moist southeast airflow over Arizona resulted in thunderstorms, mainly nearthe international border. Some storms produced damaging wind gusts. Note: The measured wind gust of 52 knots is equivalentto 60 mph.Yuma County3 S Blaisdell 05 1645MST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)Isolated thunderstorms developed across far southwestern Arizona during the afternoon hours on August 5th. Some stormsaffected the Fortuna Foothills. The atmosphere was very hot and rather dry at the time and this allowed the strongerthunderstorms to produce very strong, gusty and damaging microburst winds. Garry Frank, chief meteorologist with Channel13 in Yuma sent several photos displaying damage that occurred in the Fortuna Foothills during the afternoon. Microburstwinds estimated to be at least 65 knots snapped a large tree in half, with a trunk diameter of approximately 12 inches. Gustywinds destroyed a large metal awning and caved in a sheet metal garage door. Unfortunately a Severe Thunderstorm Warningwas not in effect for this storm, however a Significant Weather Advisory did cover the situation and was issued from 443 pmuntil 530 pm.Isolated thunderstorms developed near Yuma, including the community of Fortuna Foothills, during the afternoon hours onAugust 5th. The atmosphere was on the dry side and very hot. This allowed the stronger thunderstorms to strong, damagingmicroburst winds with relatively little rainfall. The winds were strong enough to snap trees, blow over awnings and damagegarage doors in the Fortuna Foothills area. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Gila County3 ESE Roosevelt Grpvn Arpt 05 2130MST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Isolated thunderstorms developed across portions of southern Gila County during the evening hours on August 5th. Some of thestorms generated gusty and damaging microburst winds. At 930 pm, a trained weather spotter in Roosevelt Jackass Flats,located near Lake Roosevelt and to the northwest of Globe, indicated that strong winds blew down a Mesquite tree. The treethen fell onto a nearby car. The spotter estimated wind gusts to be in excess of 65 mph.Isolated thunderstorms developed across portions of southern Gila County during the evening hours on August 5th. Some of thestorms generated strong and gusty microburst winds in excess of 60 mph. The damaging microburst winds blew down trees inthe Roosevelt Estates area. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.AZZ023Greater Phoenix Area05 2200MST2330MST 0 0 0.00K 0.00K Dust StormIsolated thunderstorms developed over the south central deserts during the evening hours on August 5th. The storms producedgusty outflow winds in excess of 30 mph which moved into the greater Phoenix metropolitan area and generated areas of denseblowing dust, leading to the issuance of a dust storm warning. No injuries or accidents were reported as a result of the denseblowing dust.Gila CountyHayden 08 1710MST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Isolated thunderstorms developed across portions of southern Gila county, including the area around Hayden, during theafternoon hours on August 8th. The very hot and rather dry nature of the airmass allowed the storms to produce strong andgusty microburst winds. In fact, a Severe Thunderstorm Warning was issued for the area at about 440 pm in the afternoon.According to local law enforcement, at 510 pm strong microburst wind gusts estimated to be at least 50 knots caused numeroustree branches to be blown down. In addition, the gusty winds blew a number of shingles off of area roofs.21

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestIsolated thunderstorms developed across portions of southern Gila county, including the area around Hayden, during theafternoon hours on August 8th. The very hot and relatively dry nature of the atmosphere allowed the storms to generate verystrong and gusty outflow winds. The strong winds were sufficient to cause damage to roofs and trees in the area. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.AZZ023-028Central Deserts - Greater Phoenix Area11 1630MST1900MST 0 0 0.00K 0.00K Dust StormStrong thunderstorms developed to the southeast of the greater Phoenix metropolitan area during the afternoon hours on August11th. Due to the excessive heat and dry conditions, the storms were able to generate strong gusty outflow winds well in excessof 40 mph. The winds pushed towards the northwest and stirred up large quantities of dust and dirt, creating a dust storm. Thedust storm moved towards the northwest, across Pinal county and into the greater Phoenix metropolitan area during the latterportion of the afternoon, and then into the early evening hours. The dense blowing dust created very hazardous drivingconditions across the central deserts.Yuma County2 ESE Dome 12 1628MST1630MST 0 0 45.00K 0.00K Thunderstorm Wind (60EG)Isolated thunderstorms developed in the area around Yuma during the afternoon hours on August 12th. Due to the excessiveheat and the relatively dry character of the atmosphere, the storms were able to generate strong, gusty and damaging microburstwinds. According to a trained weather spotter, at 428 pm wind gusts estimated to be at least 60 knots caused 6 power poles tobe blown down near county 6th Street and Avenue 18E. This location was approximately 4 miles east of Kinter.Isolated thunderstorms developed near Yuma during the afternoon hours on the 12th. Due to the excessive heat and relativelydry nature of the atmosphere, the storms were able to generated strong and gusty outflow winds. The winds were strong enoughto down a number of power poles near Kinter, to the northeast of Yuma. Note: The estimated wind gust of 60 knots isequivalent to 69 mph.Maricopa County1 N Queen Creek 14 2230MST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)Isolated to scattered thunderstorms developed across portions of the greater Phoenix metropolitan area during the late eveninghours on August 14th. Partly due to the excessive heat that occurred during the day, the thunderstorms were able to generatestrong, gusty and damaging microburst winds well into the evening hours. According to Brad Greer, Park Ranger with the townof Queen Creek, a large metal football light field pole was blown down during the evening thunderstorms. Time of the stormswas estimated to be near 1030 pm, and the wind gusts were estimated to be at least 65 knots. The light pole was located at theQueen Creek Middle School in Queen Creek, at the intersection of Queen Creek and Ellsworth Roads. Fortunately, no injuriesoccurred due to the falling light pole.Thunderstorms developed during the late evening hours on August 14th and they affected portions of the greater Phoenixmetropolitan area, including the community of Queen Creek. Due to the excessive heat that had been observed during theafternoon, the storms were able to generate strong and damaging microburst winds late into the evening. Wind gusts estimatedto be in excess of 60 knots blew down a substantial metal light pole at the Queen Creek Middle School; fortunately no injuriesoccurred when the pole fell. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.22

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestPinal County2 NE Lirim 1415This large metal football light field pole was blown down by microburst winds estimated to be at least70 mph. The pole was located at the Queen Creek Middle School in Queen Creek. Photo submitted by theyouth football league that uses the field.2345MST0215MST 0 0 40.00K 0.00K Flash FloodThunderstorms that developed during the evening hours on August 14th persisted into the early morning hours on August 15th,and they produced locally heavy rainfall over portions of west central Pinal county, including the community of Maricopa.Rainfall rates were estimated to be in excess of one inch per hour with the stronger storms, and the heavy rain led to local flashflooding. According to city officials with the town of Maricopa, the heavy rains caused Farrell and Murphy roads to be washedout. The roads were washed out at approximately 1230 am, and the time was estimated based on radar and local weatherstations. Although Flash Flood Warnings were not in effect at the time, there was an Urban/Small Stream Flood Advisory ineffect which ran until 215 am.Thunderstorms developed over the south central deserts during the late evening hours on August 14th, affecting portions ofwest central Pinal county and the community of Maricopa. The storms produced locally heavy rain with rain rates in excess ofone inch per hour, and they persisted into the early morning hours on August 15th. Flash flooding was reported near Maricopa,leading to area roads being washed out. No injuries were reported as a result of the flash flooding.Maricopa County6 ESE Wittmann6 NNW Beardsley16 2130MST2359MST 0 0 500.00K 0.00K Flash FloodScattered thunderstorms developed across northern portions of Maricopa county during the evening hours on August 16th, andthey produced locally heavy rain with rain rates in excess of one inch per hour. Radar and rain gage data indicated somelocations picked up between one half and one and a half inches of rain, especially areas to the north of Surprise. The heavy rainled to excessive urban flooding, which transitioned into flash flooding. A Flash Flood Warning was not issued, however anUrban and Small Stream Flood Advisory was in effect as of 9 pm for portions of north central Maricopa county. As seen on achannel 15 television interview, significant street flooding occurred in portions of Surprise with water at least one foot deep inplaces. Ponded water approached several homes and actually flowed into the first floor of at least one home, causing significantdamage. According to local law enforcement, multiple cars were washed off the road near Dale Lane and 170th Avenue. Rainfalling north of the area caused washes to flow rapidly, and water from a flooding wash flowed over the road, trapping anumber of drivers. Surprise fire Captain Kevin Spirlong indicated that there were multiple swift water rescues; rescue units hadto pluck people from 8 vehicles. It took about 30 firefighters from 6 local agencies to get the residents from the wash whichwas located near 173rd Avenue and Dixieleta Road. The swift water rescues took place from around 10 pm to midnight.Surprise police spokesman Mark Ortega indicated that there was damage to some of the roads as a result of the flooding and theroads were going to be tested for safety. Fortunately, no injuries were reported as a result of the flash flooding.23

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestMaricopa County4 ENE Circle City 16 2145MST2300MST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across northern portions of Maricopa county during the evening hours, and the stormsgenerated locally heavy rainfall with rain rates in excess of one inch per hour. The heavy rain led to excessive urban flooding,which prompted the issuance of an Urban and Small Stream Flood Advisory at 9 pm for north central portions of Maricopacounty, including the town of Circle City. According to local law enforcement, at about 945 pm water was reported to berapidly running across the road at the intersection of 211th Avenue and Highway 74. This intersection is located 4 miles east ofCircle City. Law enforcement also indicated that water was flowing over the road at 170th Avenue and Dixileta Road, about 6miles northwest of Beardsley. This flooding occurred at about 950 pm. No injuries were reported as a result of the flooding.Scattered thunderstorms developed across the northern portion of the greater Phoenix metropolitan area during the eveninghours on August 16th. The storms produced locally heavy rainfall with rain rates well in excess of one inch per hour. The heavyrain led to episodes of flash flooding, which affected the towns of Surprise and Circle City. The flooding led to water acrossarea roads, which promted a number of swift water rescues in the west valley.Maricopa County15 NNW Sunflower 16172300MST0645MST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across northeast Maricopa county, including the area around the Sunflower Burn, during thelate evening hours on August 16th. The storms produced locally heavy rainfall over the burn area, and radar indicated that overone and one half inches fell since around 10 pm. Due to the burn conditions, the heavy rain led to flash flooding which affectedboth the town of Sunflower and Sycamore creek downstream of the burn. Stream gage sensors near the Tonto National ForestWork Center indicated that flow in Sycamore Creek reached 7900 cfs, and the depth of the water was over 10 feet. Flash FloodWarnings were issued for both the area around and downstream of the burn area, starting at 1110 pm and continuing through245 am early on the 17th. The flash flood warning was converted to a flood warning, which continued through 645 am. Locallaw enforcement indicated that flooding along Sycamore creek caused forest roads 403 and 414 to be closed. During the peakof flooding, Sycamore creek left its banks and was nearly 40 yards wide in some locations. Rapid debris flow was noted alonghighway 87 at Round Valley.Thunderstorms with locally heavy rainfall developed over portions of northeast Maricopa county during the late evening hourson August 16th, and some of the storms affected the Sunflower Burn area just north of the town of Sunflower. Radar indicatedthat more than one and one half inches of rain fell in the Burn area since 1030 pm, and the heavy rain led to flash flooding inSunflower and along Sycamore Creek downstream of the burn. The flooding continued into the early morning hours on August17th.Pinal CountyCoolidge 18 1915MST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)Thunderstorms developed across the south central Arizona deserts during the evening hours on August 18th. Some of thestorms generated strong and damaging microburst winds with gusts estimated to be at least 50 knots. According to the FlorenceSheriff's office, at 715 pm several power poles were blown down in the town of Coolidge, and a number of power lines weredowned as well. Locally heavy rain accompanied the storms over the central deserts, a National Weather Service employee inMaricopa reported 1.26 of rain, and some flooding was reported in the San Tan Valley.Thunderstorms developed across the south central deserts during the evening hours on August 18th. In addition to locally heavyrain, the storms produced damaging microburst winds which blew down power poles in the town of Coolidge. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.Gila County5 E Cutter 19 1650MST1815MST 0 0 20.00K 0.00K Flash FloodScattered thunderstorms developed across southern Gila county during the afternoon hours on August 19th, and they producedlocally heavy rain with rain rates in excess of 2 inches per hour. Some of the heaviest rain occurred southeast of Globe, alongIndian Highway 6 between Apache Gold Casino and San Carlos. At 540 pm, San Carlos Tribal Police reported flooding alongthe Gilson wash as well as nearby areas on Indian Highway 6. At 6 pm, the San Carlos Tribal Police reported a motorist vehiclestranded in the wash along Highway 6, or the old San Carlos Road. The flooding led to the issuance of a Flash Flood Warningat 452 pm.Scattered thunderstorms developed across portions of southern Gila county during the afternoon hours on August 19th, andthey produced locally heavy rain, especially to the south and east of Globe. Rainfall rates were in excess of 2 inches per hourwith the stronger thunderstorms. Flash flooding developed near the town of San Carlos. Fortunately, no injuries were reporteddue to the flooding.24

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestLa Paz County1 W Harcuvar 20 1500MST1645MST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across central La Paz county during the afternoon hours on August 20th. Due to the veryhumid and unstable nature of the atmosphere, the storms produced very heavy rainfall with rainfall rates in excess of 2 inchesper hour. The heavy rain led to episodes of flash flooding, which affected the communities of Salome and Harcuvar. Theflooding led to the issuance of a Flash Flood Warning at 250 pm, and the warning extended until 445 pm. According to locallaw enforcement, flooding and flash flooding was observed in the washes around both Salome and Harcuvar. No injuries werereported due to the flash flooding.La Paz County1 E Quartzsite ArptQuartzite20 1830MST2030MST 0 0 25.00K 0.00K Flash FloodScattered thunderstorms developed across portions of La Paz county during the afternoon and evening hours on August 20th,and they affected the area around Quartzsite. Due to the very humid and unstable nature of the atmosphere, the thunderstormsgenerated very heavy rainfall with rainfall rates well in excess of 2 inches per hour. The heavy rain led to episodes of flashflooding, mostly across the northern portions of Quartzsite. Many of the flash flooding impacts developed around 630 pm andcontinued into the evening hours. According to the Quartzsite Police Department, at 630 pm the Tyson wash 5 miles north ofQuartzsite was running heavily and covering state route 95. Both the Quartzsite Police Department and Arizona Department ofTransportation responded and they set up road closures and restrictions along the highway. The heavy rains led to other roadclosures around the community of Quartzsite; other streets that were impacted included Riggles Avenue, Quail Trail Street andPlymouth.Thunderstorms developed across portions of La Paz county during the afternoon and evening hours on August 20th, and theyaffected communities such as Quartzsite, Salome and Harcuvar. Due to the very moist and unstable nature of the atmosphere,the storms generated very heavy rains with rainfall rates well in excess of 2 inches per hour. The heavy rain led to episodes offlash flooding, which caused area washes to flow heavily and overflow their banks, and many roads to become flooded as well.Fortunately, no injuries were reported as a consequence of the flash flooding.Maricopa County1 N Hightown 20 1905MST1920MST 0 0 40.00K 0.00K Thunderstorm Wind (70EG)Scattered thunderstorms developed across the greater Phoenix metropolitan area during the late afternoon hours on August 20thand they affected the community of Chandler. The storms generated strong and gusty microburst winds, with peak gustsestimated to be at least 70 knots. Local broadcast media reported that numerous trees were downed across the Chandler FashionCenter north parking lot and along the Loop 101 near Chandler Boulevard. This occurred at approximately 7 pm. Tree trunkdiameters were estimated to almost 12 inches at the largest, with additional downed limbs approaching 6 inches in diameter. Inaddition, at 720 pm a trained weather spotter in Chandler reported trees downed near the intersection of Chandler Boulevardand the 101.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Maricopa County1 SE Buckhorn 20 1915MST 0 0 20.00K 0.00K Thunderstorm Wind (65EG)Scattered thunderstorms developed over the greater Phoenix area during the afternoon and early evening hours on August 20th.Some of the thunderstorms generated both very heavy rain and strong, gusty and damaging microburst winds. According to atrained weather spotter in East Mesa, at 715 pm thunderstorm wind gusts estimated to be at least 65 knots blew down a carportand caused damage to the roof of the home to which the carport was attached. In addition, a number of tree branches withdiameters up to 3 inches were downed in the area.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Maricopa County1 SE Buckhorn 20 1916MST2000MST 0 0 0.00K 0.00K Heavy RainScattered thunderstorms developed across the greater Phoenix area during the late afternoon and early evening hours on August20th, and they affected east valley communities such as Mesa. Due to the very humid and unstable nature of the atmosphere,the thunderstorms were able to produce very heavy rain with rain rates well in excess of 2 inches per hour. An automated FloodControl District gage located near the intersection of Higley and Broadway road measured 1.26 inches of rain between 716 and801 pm. In addition, a trained weather spotter located about 6 miles east of Mesa measured 1.25 inches of rain between 700 and735 pm. The intense rainfall led to urban flooding across the eastern portions of the greater Phoenix area during the eveninghours.25

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestMaricopa County2 SSW Desert Sands 20 1930MST 0 0 2.00K 0.00K Thunderstorm Wind (65EG)Scattered thunderstorms developed across the greater Phoenix area during the afternoon and early evening hours on August20th and they affected east valley communities which included Mesa and Superstition Springs. Due to the very moist andunstable nature of the atmosphere, the storms generated strong, gusty and damaging microburst winds. According to a reportfrom the public, at 730 pm gusty winds estimated to be at least 65 knots completely blew down a section block wall at theintersection of Kiowa and Roslyn Street in Mesa. The block wall was was at least 20 feet in length.Thunderstorms developed over portions of the greater Phoenix metropolitan area during the afternoon and evening hours onAugust 20th. Due to the very moist and unstable nature of the atmosphere, the storms generated both very heavy rain andstrong, gusty damaging winds, estimated to be in excess of 70 mph. Most of the damage occurred in the communities of Mesaand Chandler during the early evening. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Gila County4 WSW Miami 21 1620MST1815MST 0 0 0.00K 0.00K Heavy RainScattered thunderstorms developed during the afternoon hours across portions of southern Gila County on August 21st, andthey affected the communities of Globe and Miami. Due to the very moist and unstable nature of the atmosphere, the stormswere able to generate locally heavy rain with rainfall rates in excess of 2 inches per hour. Heavy rain in the Globe/Miami arealed to the issuance of a Small Stream Flood Advisory at 418 pm, and the advisory continued until 615 pm. At 605 pm, a trainedweather spotter 4 miles west of Miami measured 1.22 inches of rain in a strong thunderstorm. The heavy rain led to flooding ofroads and washes in the area around Miami.Thunderstorms developed across portions of southern Gila County during the afternoon hours on August 21st, and theygenerated locally heavy rainfall with rain rates in excess of 2 inches per hour. The heavy rain led to the issuance of SmallStream Flood Advisories, and caused flooding of area roads and washes. The heavy rain and flooding affected the communitiesof Globe and Miami as well as surrounding areas.La Paz County3 NW Vicksburg 21 1730MST2000MST 0 0 20.00K 0.00K Flash FloodScattered thunderstorms developed across central La Paz county during the evening hours on August 21st, and they affected thearea between Bouse and Vicksburg, including highway 72. Due to the very humid and unstable nature of the atmosphere, thestorms were able to produce very heavy rain with rainfall rates well in excess of 2 inches per hour. According to localnewspaper reports, at 540 pm washes were running along highway 72 southeast of Bouse, and debris had been washed acrossthe highway. Some of the most significant flooding occurred along highway 72 between mileposts 37 and 40. The floodingprompted the issuance of a Flash Flood Warning for central La Paz County from 537 pm until 7 pm. Fortunately, no injurieswere reported due to the flash flooding.Scattered thunderstorms developed across portions of La Paz county during the late afternoon and evening hours on August21st, and they affected communities such as Brenda and Vicksburg, as well as area highways such as highway 72 southeast ofBouse. Due to the very humid and unstable nature of the atmosphere, the thunderstorms were able to produce both locallyheavy rainfall and strong, gusty and damaging microburst winds. The storms prompted the issuance of many warning products,such as Severe Thunderstorm and Flash Flood warnings, for La Paz county, especially the central portions of the county.Pinal CountyCoolidge Arpt 21 1830MST2100MST 0 0 0.00K 0.00K Heavy RainScattered thunderstorms developed across northwest Pinal county during the evening hours on August 21st, and they affectedcommunities such as Coolidge, San Tan Valley and Arizola. Due to the very humid and unstable nature of the atmosphere, thestorms were able to produce very heavy rainfall with rain rates well in excess of 2 inches per hour. At 720 pm, a trainedweather spotter 1 mile west of Coolidge reported that he had measured 2.54 inches of rain, and street flooding was occurring inthe area. At 815 pm, another trained weather spotter near Coolidge measured 2.07 inches of rainfall, much of which had fallensince 7 pm. The heavy rain led to the issuance of a Flash Flood Warning for the Coolidge area beginning at 7 pm andcontinuing through 830 pm. Heavy rain continued to fall into the mid evening; at 9 pm another trained weather spotter 2 milesnorth of Arizola measured nearly one inch of rain in a thunderstorm and nearly one half inch had fallen in the last 25 minutes.Thunderstorms continued to develop across the south central Arizona deserts during the evening hours on August 21st,affecting both the greater Phoenix area as well as portions of northwest Pinal county including the community of Coolidge. Dueto the very moist and unstable nature of the atmosphere, the thunderstorms primarily generated very heavy rainfall with rainrates well in excess of 2 inches per hour. The heavy rain was sufficient to cause some urban street flooding. Additionally, a fewstorms were able to produce gusty and damaging microburst winds which were strong enough to blow down power poles.26

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestLa Paz County6 ENE Brenda 21 1857MST1900MST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)Scattered thunderstorms developed over central La Paz county during the evening hours on August 21st. The thunderstormswere able to generate strong, gusty and damaging microburst winds, estimated to be in excess of 70 mph. The storms promptedthe issuance of a Severe Thunderstorm Warning, effective from 555 pm until 7 pm. According to a local newspaper report, at657 pm gusty microburst winds blew down a power pole and some power lines 6 miles northeast of Brenda, along U.S.Highway 60. The downed power lines affected power to the residents of Bouse.Scattered thunderstorms developed across portions of La Paz county during the late afternoon and evening hours on August21st, and they affected communities such as Brenda and Vicksburg, as well as area highways such as highway 72 southeast ofBouse. Due to the very humid and unstable nature of the atmosphere, the thunderstorms were able to produce both locallyheavy rainfall and strong, gusty and damaging microburst winds. The storms prompted the issuance of many warning products,such as Severe Thunderstorm and Flash Flood warnings, for La Paz county, especially the central portions of the county. Note:The estimated wind gust of 60 knots is equivalent to 69 mph.Pinal County1 NW Coolidge 21 1915MST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)Thunderstorms developed across portions of northwest Pinal county, including the community of Coolidge, during the eveninghours on August 21st. Due to the very humid and unstable nature of the atmosphere, the thunderstorms were able to produceboth heavy rain and gusty, damaging microburst winds. According to local law enforcement, at 715 pm thunderstorm windgusts knocked down several power poles and power lines in the town of Coolidge. The wind gusts were estimated to be at least60 knots. At the same time, locally heavy rain produced by the severe storm cluster caused street flooding to the north, in thetown of San Tan Valley. The urban flooding was reported by a trained storm spotter 15 miles north of Coolidge.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Pinal CountyCoolidge Arpt 21 1940MST1945MST 0 0 30.00K 0.00K Thunderstorm Wind (65EG)Scattered thunderstorms developed across northwest Pinal county, including the community of Coolidge, during the eveninghours on August 21st. Some of the thunderstorms produced strong, gusty and damaging microburst winds which wereestimated to be at least 65 knots. According to a trained weather spotter located on the west side of Coolidge, gusty microburstwinds blew down a number of trees at approximately 740 pm. The diameter of the trees was not specified. In addition, therewas shingle damage on several roofs. A Severe thunderstorm Warning was in effect at the time of the damage.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Maricopa County1 W Goodyear Arpt 21 2030MST2200MST 0 0 0.00K 0.00K Heavy RainThunderstorms developed across the western portion of the greater Phoenix area during the evening hours on August 21st. Thestorms produced locally heavy rainfall with rain rates well in excess of one inch per hour. At 9 pm, radar estimates and stormspotter reports indicated that one half inch or more of rain had fallen since 830 pm. At 857 pm a trained spotter in Goodyearreported that one half inch of rain had fallen within the past 15 minutes. The heavy rain led to urban flooding and prompted theissuance of an Urban and Small Stream Advisory for the western Phoenix metropolitan area. The advisory continued until 11pm.Thunderstorms continued to develop across the south central Arizona deserts during the evening hours on August 21st,affecting both the greater Phoenix area as well as portions of northwest Pinal county including the community of Coolidge. Dueto the very moist and unstable nature of the atmosphere, the thunderstorms primarily generated very heavy rainfall with rainrates well in excess of 2 inches per hour. The heavy rain was sufficient to cause some urban street flooding. Additionally, a fewstorms were able to produce gusty and damaging microburst winds which were strong enough to blow down power poles.Maricopa County7 SW Morristown 23 0025MST0400MST 0 0 0.00K 0.00K Heavy RainA convective complex developed across south central Arizona during the early morning hours on August 23rd, and it affectedthe entire Phoenix metropolitan area, including the community of Wittmann. The storms produced locally heavy rainfall whichled to flooding of streets, washes and low lying areas. An Urban and Small Stream Flood Advisory was issued for northwestMaricopa county, including Wittmann, beginning at 1 am and continuing through 4 am. At 125 AM, a Flood Control Districtrain gage located 10 miles northwest of Wittmann, measured 1.73 inches of rain at Daggs Wash. The rain fell in a one hourperiod of time.27

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestA large convective complex developed across the greater Phoenix metropolitan area, including the community of Wittman,during the very early morning hours on August 23rd. The combination of a weather disturbance and a very humid and unstableairmass allowed the thunderstorms to produce locally heavy rainfall, with peak rain rates in excess of 2 inches per hour. Thefirst rains began shortly after midnight, and continued into the early morning hours. At approximately 350 AM, local FireDepartment and Rescue units reported a water rescue at 211th Avenu and West Montgomery Road, one mile southeast of thetown of Wittman. A vehicle was stuck in rapidly rising water, and the occupants needed to be rescued. Although no FlashFlood Warning were in effect at the time, an Urban and Small Stream Flood Advisory was in effect and continued through 4AM. No injures were reported due to the flash flooding.Maricopa County2 SSE West End2 ENE Tolleson23 0300MST0600MST 0 0 25.00K 0.00K Flash FloodA large convective complex developed across the greater Phoenix metropolitan area during the early morning hours on August23rd. The combination of a passing weather disturbance and a very humid airmass allowed thunderstorms to produce excessiverainfall with peak rain rates in excess of 2 inches per hour. Heavy rains began in the central Phoenix area by 130 AM, andpersisted into the early morning hours. According to the local Department of Highways, mud and debris were blocking the right3 lanes of eastbound Interstate 10 at about 515 AM. The debris flow was a result of flash flooding. The blockage was located 2miles east of Tolleson. Although Flash Flood Warnings were not issued, a Flash Flood Watch was in effect through 5 AM.Earlier, Urban and Small Stream Flood Advisories were issued for the central Phoenix area.Maricopa County2 SW Wittmann 23 0500MST0800MST 0 0 10.00K 0.00K Flash FloodA large convective complex developed across south central Arizona, including the greater Phoenix area, during the earlymorning hours on August 23rd. The combination of a passing weather disturbance and a very humid airmass allowedthunderstorms to produce excessive rain, with peak rain rates in excess of 2 inches per hour. The heavy rains initially developedin the Wittmann area after 130 AM, but they persisted off and on through sunrise. According to a trained weather spotter 2miles southwest of Wittmann, at about 6 AM flooding was reported along Patton Road. Water up to 6 inches deep was reportedto be flowing across the road for at least a one mile stretch of the roadway. Flash Flood Warnings were not in effect at the time,but an Urban and Small Stream Flood Advisory had been issued and was in effect through 9 AM. No injuries were reported inassociation with the flash flooding.A large convective complex formed over south central Arizona during the early morning hours on August 23rd, a result of aweather disturbance acting on a very humid and unstable airmass. The complex of thunderstorms produced locally heavy rainacross much of south central Arizona, including the greater Phoenix metropolitan area, beginning shortly after midnight andpersisting through sunrise. Peak rainfall rates were between 3 and 4 inches per hour, and the heavy rain led to episodes offlooding and flash flooding, affecting areas from Witmann and New River south through the central portions of Phoenix.Several Urban and Small Stream Flood Advisories were issued for the event, but no Flash Flood Warnings were issued, despitethe fact that a Flash Flood Watch remained in effect through 5 am.Maricopa County7 N Scottsdale Muni 24 1600MST1830MST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across the northern portions of the greater Phoenix area during the afternoon hours onAugust 24th, and they affected the area between Carefree and Scottsdale. The storms produced locally heavy rain with peakrain rates well in excess of one inch per hour, and the rain led to both urban flooding and flash flooding. At 420 pm, a trainedweather spotter located 5 miles northwest of Scottsdale reported washes running heavily between Jomax and Dynamite roads.Street flooding was occurring along Scottsdale road. In addition, a trained spotter 5 miles south of Carefree measured nearlyone inch of rain in less than one hour, ending at 4 pm. The heavy rain occurred near the intersection of Scottsdale and Dynamiteroads. Fortunately, no injuries were reported as a consequence of the flash flooding.Maricopa County7 N Scottsdale Muni 24 1600MST1800MST 0 0 0.00K 0.00K Heavy RainScattered thunderstorms developed over the northern portions of the greater Phoenix area during the afternoon hours on August24th and they affected the community of Scottsdale. The stronger storms generated locally heavy rain with peak rain rates wellin excess of one inch per hour. According to a trained weather spotter located 3 miles northwest of Scottsdale, 0.70 inches ofrain fell between 4 pm and 430 pm. The heavy rain led to minor street flooding with water 4 to 6 inches deep across the street.An Urban and Small Stream Flood Advisory was in effect through 630 pm for the area.29

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARIZONA, SouthwestMaricopa County7 SSE Cave Creek 24 1620MST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)Scattered thunderstorms developed across the northern portions of the greater Phoenix area, including the community ofScottsdale, during the afternoon hours on August 24th. The stronger storms generated both locally heavy rain and gusty,damaging microburst winds. According to a trained weather spotter located 4 miles northwest of Scottsdale, gusty windsestimated to be at least 60 knots blew down a number of trees with diameters of at least 8 inches. Heavy rain that accompaniedthe storms lowered visibility to near zero and led to some urban street flooding.Scattered thunderstorms developed during the afternoon hours across the greater Phoenix metropolitan area, especially thenorthern portions including communties such as Scottsdale and Carefree. Some of the thunderstorms produced locally heavyrain which led to urban as well as flash flooding. Gusty and damaging microburst winds were also associated with some of thestronger thunderstorms. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.La Paz County9 SW Wall 29 1630MST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)Isolated to scattered thunderstorms developed across portions of La Paz county during the afternoon hours on August 29th. Thestronger storms were able to generate strong and gusty microburst winds. According to local law enforcement, at 430 pm gustyoutflow winds estimated to be in excess of 50 knots blew down several power poles between mileposts 127 and 129 on U.S.Highway 95, approximately 13 miles southeast of Poston.Maricopa County14 SSE Black Gap21 W KakaThunderstorms developed across portions of La Paz county on during the afternoon hours on August 29th, and a few of themgenerated strong, gusty and damaging outflow winds. The winds, estimated to be in excess of 50 knots, blew down a number ofpower poles on U.S. Highway 95 in the northwest part of the county. Note: The estimated wind gust of 50 knots is equivalentto 58 mph.30 1830MST2200MST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across the far southwest portion of Maricopa county during the evening hours on August30th. Some of the storms generated locally heavy rainfall with peak rain rates in excess of 2 inches per hour. Some of theheaviest rain fell south of Gila Bend, and affected traffic along Highway 85. According to local law enforcement, at 717 pmwater was running across U.S. Highway 85 and washes were running full at milepost 22. Fortunately, no injuries or waterrescues were reported as a result of the heavy rain and flash flooding.Scattered thunderstorms developed over the far southwest portions of Maricopa county during the evening hours on August30th. Some of the storms produced locally heavy rainfall which led to flash flooding south of Gila Bend and along Highway 85.The excessive rain caused area washes to run full and caused water to flow across Highway 85. A Flash Flood Warning wasissued as a result of the flooding.Gila County3 ESE Roosevelt Grpvn Arpt 31 1500MST1715MST 0 0 0.00K 0.00K Heavy RainScattered thunderstorms developed across central Gila county during the afternoon hours on August 31st. Due to the veryhumid nature of the atmosphere, the storms generated very heavy rain with peak rain rates well in excess of one inch per hour.A trained weather spotter located 7 mile southeast of Tonto National Monument measured 0.69 inches of rain between 3 pmand 325 pm. Gusty winds up to 50 mph accompanied the heavy rain. The heavy rain led to ponding of water on streets andother low lying areas; the spotter reported that water 2 inches deep covered his yard. The heavy rain also prompted the issuanceof a Small Stream Flood Advisory for central Gila county which was in effect through 515 pm.Gila County3 ESE Roosevelt Grpvn Arpt 31 1500MST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)Scattered thunderstorms developed over central Gila county during the afternoon hours, affecting areas between LakeRoosevelt and Globe. The very humid and unstable nature of the airmass allowed the stronger thunderstorms to produce bothheavy rain and gusty, damaging microburst winds. At 3 pm, a trained weather spotter located 7 miles southeast of TontoNational Monument reported that a 40 by 20 foot roof of a shed was blown off by wind gusts estimated to be at least 60 knots.In addition, the strong winds twisted and destroyed a sturdy jungle gym playground set.Scattered thunderstorms developed across portions of central Gila county, including areas between Lake Roosevelt and Globe,during the afternoon hours on August 31st. Due to the very moist and unstable nature of the atmosphere, the storms generatedboth locally heavy rainfall and gusty, damaging microburst winds. The heavy rain produced flooding of small streams andwashes, and prompted the issuance of Small Stream Flood Advisories for central Gila county. Note: The estimated wind gustof 60 knots is equivalent to 69 mph.30

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralARZ042Garland01030000CST1030CST 0 0 WildfireThe Mt. Riante Fire began on July 29th southwest of Lake Hamilton in Garland County. Several fire departments, the ArkansasForestry Commission, and the U.S. Forest Service fought the fire. In addition, the Arkansas National Guard used Black Hawkhelicopters to drop water. Fire engines were stationed at homes in the area. The fire was finally controlled on August 3rd, afterburning 355 acres.ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069Arkansas - Baxter - Boone - Bradley - Calhoun - Clark - Cleburne - Cleveland - Conway - Dallas - Desha -Drew - Faulkner - Fulton - Garland - Grant - Hot Spring - Independence - Izard - Jackson - Jefferson -Johnson - Lincoln - Logan - Lonoke - Marion - Monroe - Montgomery - Newton - Ouachita - Perry - Pike -Polk - Pope - Prairie - Pulaski - Saline - Scott - Searcy - Sharp - Stone - Van Buren - White - Woodruff -Yell01050000CST2000CST 1 0 HeatMost of Arkansas was under extreme or exceptional drought as August began. Unusual heat also continued into the beginningof the month. From the 1st through the 5th, high temperatures were 100 degrees or higher at many reporting stations. Thehighest temperatures during this time frame were 108 at Cabot and Silver Hill; 107 at Russellville, Conway, Booneville forestrystation, and Oden; 106 at Little Rock, DeGray Lake State Park, Dardanelle, Subiaco, Morrilton, Leola, Malvern, Nimrod Dam,and Jessieville. After the first few days of the month, the high pressure aloft that had caused hot weather throughout July shiftedto the west. This allowed at least some scattered showers and thunderstorms from time to time, and heat indices graduallydropped below 105 in most areas. On the 3rd, a 16 month-old girl died in a hot car in Newport (Jackson Co.). According topolice reports, the father was supposed to drop the baby off at daycare but forgot to do so. Thus, the baby remained in the carall day and was not discovered in the car until late afternoon. The high temperature at Newport that day reached 96 degrees andthe heat index reached 106. The father was arrested at the scene and charged with negligent homicide.01310000CST2359CST 0 0 DroughtARZ004>007-012>016-021>025-030>034-037>047-052>057-062>069Arkansas - Baxter - Bradley - Calhoun - Clark - Cleburne - Cleveland - Conway - Dallas - Desha - Drew -Faulkner - Fulton - Garland - Grant - Hot Spring - Independence - Izard - Jackson - Jefferson - Johnson -Lincoln - Logan - Lonoke - Marion - Monroe - Montgomery - Newton - Ouachita - Perry - Pike - Polk -Pope - Prairie - Pulaski - Saline - Scott - Searcy - Sharp - Stone - Van Buren - White - Woodruff - Yell01310000CST2359CST 0 0 DroughtAt the beginning of August, most of Arkansas was under extreme or exceptional drought. After a brief heat wave at thebeginning of the month, the weather returned closer to a normal weather pattern, with weather systems bringing at leastscattered showers and thunderstorms from time to time. By the end of the month, there had been slight improvement in thedrought in parts of western and central Arkansas. During the month, the Arkansas Forestry Commission fought 425 fires, whichburned 7721 acres. There were hundreds of additional, smaller fires fought by city fire departments and rural volunteerdepartments. The passage of Tropical Depression Isaac at the end of the month brought more substantial rainfall andconsequent improvement in the drought. The drought improvement was reflected in the first Drought Monitor issued inSeptember and will thus appear in September's Storm Data.Boone County2 N Harrison 01 1610CST 0 0 100.00K 0.00K Thunderstorm Wind (56EG)Part of the metal roof was blown off a business, the roof was taken off a pawn shop, power poles were snapped, and powerlines and business signs were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Marion County2 ESE Bull Shoals 01 1648CST 0 0 3.00M 0.00K Thunderstorm Wind (56EG)One boat dock was overturned onto another dock, and several additional boat docks were damaged. Dozens of boats weredamaged or destroyed; some of the boats sank. Trees and power lines were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.31

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralMarion CountyYellville 01 1709CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Several large trees were blown down, with one of the trees landing on a house.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fulton CountyViola 01 1734CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)Tin roofing was removed from several houses. Trees and power lines were blown down. Some power poles were snapped.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Fulton County4 NW Flint Springs 01 1736CST 0 0 100.00K 0.00K Thunderstorm Wind (65EG)In the Mt. Calm area, trees and power lines were blown down, two homes and two barns were damaged, and a tractor-trailerand a horse trailer were blown over.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Fulton CountySalem 01 1743CST 0 0 100.00K 0.00K Thunderstorm Wind (57MG)Tin roofing was removed from several structures, especially on the west side of Salem. Numerous trees and power lines wereblown down.Note: The measured wind gust of 57 knots is equivalent to 66 mph.Sharp County3 NW King Mills 01 1817CST 0 0 100.00K 0.00K Thunderstorm Wind (56EG)Many trees were blown down, with some of the trees landing on houses and vehicles. Power lines and power poles were blowndown.High pressure, which had been nearly stationary over Arkansas, shifted to the west, allowing areas of low pressure aloft tomove southeastward into Arkansas periodically. Scattered thunderstorms developed with each of the low pressure areas andisolated storms became severe on the 1st and 2nd. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.ARZ021Johnson01062000CST1600CST 0 0 WildfireThe Hess Knob Fire was started by lightning 5 miles northeast of Hagarville in Johnson County in the Ozark National Forest onthe 1st and was contained on the 6th. Altogether, 1438 acres burned.White County2 NNW Holly Spgs 02 0415CST 0 0 50.00K 0.00K LightningLightning is believed to have started a house fire northeast of Albion. The house burned nearly to the ground. The sole resident,an 85 year-old woman, was killed.High pressure, which had been nearly stationary over Arkansas, shifted to the west, allowing areas of low pressure aloft tomove southeastward into Arkansas periodically. Scattered thunderstorms developed with each of the low pressure areas andisolated storms became severe on the 1st and 2nd.32

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralAn 85 year-old woman lost her life in a house fire near Albion, AR (White Co.) early on the morning ofAugust 2, 2012. Investigators believe the fire was started by lightning. Photo by John Robinson, WCM, WFO Little Rock.ARZ044Pulaski05081200CST2000CST 0 0 WildfireA wildfire began at Camp Robinson in Pulaski County on the 5th, having been caused by practice on the firing range. The firewas contained on the 5th, but rekindled on the 7th. A back burn was set to contain the fire. On the 8th, thunderstorms movedthrough, dousing the fire. Altogether, 700 acres burned.Garland CountyHot Spgs 05 1335CST 0 1 2.50M 0.00K Thunderstorm Wind (70EG)A microburst struck downtown Hot Springs, doing considerable damage. A hotel had a large hole, approximately 30 feet by 20feet, punched in its facade. A bank had windows blown out. A skywalk between two buildings was badly damaged with a lot ofmaterial hanging out of the bottom (over the street) and windows blown out. A motorcyclist suffered minor injuries after hetook shelter under the skywalk and was hit by flying debris. A used car dealership in a 65 year-old building had one wall cavedin and numerous windows blown out. Most of the cars that were for sale were damaged. A nearby tire shop had all of its frontwindows blown out. A theater had damage to its marquee and a large ceramic planter was blown through a wall. The cornice ofone building was blown off, scattering bricks across an adjacent parking lot. A radio tower was bent over the roof of the centralfire station. Another radio tower, belonging to an ambulance service, was also bent over. At least two dozen businesses andresidences suffered roof damage. A number of very large trees were blown down. One of these fell against a house and was solarge that a mobile crane was brought in to remove it. Numerous power lines were blown down, leaving thousands of peoplewithout power.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.33

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralA severe thunderstorm in downtown Hot Springs, AR (Garland Co.) on the afternoon of August 5, 2012, knockeda huge hole in the side of a hotel. Photo by John Robinson, WCM, WFO Little Rock.Hot Spring County1 NNE Jones Mill 05 1350CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)Trees and power lines were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Garland CountyHot Spgs 05 1403CST 0 0 Hail (1.00)Hail fell in the downtown area.Saline County2 W Lonsdale 05 1415CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down onto U.S. 70.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Saline County3 SSE Slocomb 05 1419CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down near Interstate 30 at the 107 mile marker.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pike County1 S Glenwood 05 1420CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grant CountyTull 05 1440CST 0 0 Hail (1.00)Clark County3 S Amity 05 1445CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down in the western part of Clark County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.34

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralHot Spring County3 WNW Rolla 05 1453CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County3 WNW Hartley 05 1457CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down in Cossatot River State Park.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery CountyMt Ida 05 1500CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark CountyHollywood 05 1530CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down at Hollywood.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grant CountyGrapevine 05 1531CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Power lines were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark CountyGurdon 05 1602CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG)Large oak trees were snapped and uprooted. Shingles were removed from several structures and tin roofing was ripped off andthrown 500 feet. Power lines and power poles were knocked down. Several trees fell into an electric substation, knocking outpower to most of the Gurdon area. A tractor-trailer truck was blown off the road.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.A tree limb was driven through the windshield of a car during a severe thunderstorm at Gurdon, AR (ClarkCo.) on the afternoon of August 5, 2012. The photo is courtesy of Sherry Kelley.Cleveland County9 WSW Staves 05 1612CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.35

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralCleveland CountyKingsland 05 1612CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Ouachita CountyChidester 05 1648CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark CountyGurdon 06 1340CST1343CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)A severe storm struck Gurdon for the second day in a row, knocking out power once again. Trees and power lines were blowndown. One tree fell on U.S. 67 just north of Gurdon while another fell a couple of miles north of town, taking down power,phone, and cable lines. A plate glass window was blown out of a store downtown.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.A large tree was blown down onto U.S. 67 near Gurdon, AR (Clark Co.) on the afternoon of August 6, 2012.It was the second day in a row that a severe storm had moved through Gurdon. Photo by John Robinson, WCM, WFO Little Rock.Hot Spring County1 ENE Ebenezer 06 1410CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A number of large tree limbs were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bradley County1 SE Hermitage 06 1504CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Arkansas 160. Power outages occurred in Hermitage.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bradley CountyJohnsville 06 1515CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.36

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralCleveland County1 ESE Mt Zion 06 1530CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down onto Arkansas 133.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk CountyCove 07 1430CST 0 0 Hail (1.00)Polk CountyCove 07 1430CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.A cold front moved into Arkansas on the 5th, sparking a number of severe thunderstorms. On the 6th and 7th, the front hadweakened but remained in the state, setting off a few more severe storms. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Hot Spring County3 SSW Point Cedar 08 1420CST 0 0 Hail (1.00)Hot Spring County3 SSW Point Cedar 08 1420CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Some trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark County2 N Center Point 08 1515CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Some trees were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Faulkner CountyConway 08 1640CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A privacy fence and a few trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pulaski CountyNorth Little Rock 08 1652CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)A number of power lines were blown down in North Little Rock.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pulaski CountyLittle Rock 08 1701CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.A weak area of low pressure aloft moved in from the west and collided with heat and humidity over Arkansas. The result was afew severe thunderstorms, mainly over the western half of the state. Note: The estimated wind gust of 52 knots is equivalent to60 mph.Clark CountyArkadelphia 09 1650CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Tree limbs were blown down onto a power line, causing power outages.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Drew CountyColeman 09 1906CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew trees down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.37

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralDrew County2 ESE Rose Hill 09 1925CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)Trees were blown down on Arkansas 83.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Drew CountyMonticello 09 1930CST1932CST 0 0 25.00K 0.00K Thunderstorm Wind (55MG)Numerous trees and power lines were blown down in Monticello. The automated weather station at the airport measured a windgust to 63 mph at 8:32 PM CDT.Note: The measured wind gust of 55 knots is equivalent to 63 mph.Drew CountyCominto 09 1945CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.A cold front moving through Arkansas set off a few severe thunderstorms in southern Arkansas during the late afternoon andevening hours on the 9th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Johnson CountyClarksville 13 0000CST 0 0 Hail (0.88)Faulkner County1 NW Conway 13 0200CST0600CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.70 inches in 4 hours.Faulkner County2 ESE Mayflower 13 0200CST0700CST 0 0 0.00K 0.00K Heavy RainRainfall measured 3.65 inches in 5 hours.Faulkner County3 SSE Conway 13 0200CST0700CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.79 inches in 5 hours.Faulkner County1 S Conway 13 0200CST0600CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.67 inches in 4 hours.Faulkner CountyConway 13 0204CST 0 0 25.00K 0.00K Thunderstorm Wind (56EG)Trees were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Faulkner CountyMayflower 13 0205CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pulaski County(LRF)Little Rock Afb 13 0224CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down at the Air Force Base.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.38

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralPulaski County1 E Warsaw 13 0225CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Tree limbs were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lonoke County2 SE South Bend 13 0300CST0600CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.70 inches in 3 hours.Pulaski County1 WSW Gibson 13 0300CST0500CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.96 inches in 2 hours.Pulaski CountyMarche 13 0300CST0600CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.68 inches in 3 hours.Pulaski County2 NW Sherwood 13 0300CST0646CST 0 0 0.00K 0.00K Heavy RainRainfall measured 2.60 inches in 3 3/4 hours.Pulaski County2 NNW Mabelvale 13 0317CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down.A large cluster of thunderstorms developed ahead of an approaching cold front during the wee hours of the 13th. The stormshad their biggest effect down the Arkansas River Valley. Impressive rainfall amounts occurred in parts of central Arkansas,especially considering the area was in an exceptional drought. Additional storms developed during the late afternoon andevening along the cold front. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.ARZ039-053Clark - Perry13151200CST1500CST 0 0 WildfireThe Casa Fire was started by lightning 2 miles northwest of Casa in Perry County on the 13th and continued until the 15th.Altogether, 820 acres burned. A house, some outbuildings, a boat, and several vehicles were lost in the fire. A portion ofArkansas 155 was closed during the fire. At the height of the fire, homes in the town of Casa were evacuated, as well as homesin the communities of Homewood and Rose Creek. Yell and Conway counties assisted Perry County with the evacuations.Desha CountyPendleton 13 1650CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down.A large cluster of thunderstorms developed ahead of an approaching cold front during the wee hours of the 13th. The stormshad their biggest effect down the Arkansas River Valley. Impressive rainfall amounts occurred in parts of central Arkansas,especially considering the area was in an exceptional drought. Additional storms developed during the late afternoon andevening along the cold front. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.ARZ069Drew14151000CST1600CST 0 0 WildfireThe Lacey Fire began on the 14th 8 miles southwest of Monticello in Drew County and continued until the 15th. Altogether,1410 acres burned. Ten fire departments, Arkansas Forestry Commission crews from eight counties, three aircraft, and 13 fireplows fought the fire. At the height of the fire, about 45 people were evacuated from the Possum Valley community, and a 24-inch natural gas line was threatened. In the end, only timber was lost to the fire.39

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralARZ007Sharp15 1130CST1900CST 0 0 WildfireThe Grange Fire was started by lightning 5 miles east of Cave City in Sharp County on the 15th. Altogether, 232 acres burned.Marion CountyPyatt 15 1955CST 0 0 Hail (1.00)An isolated thunderstorm developed and became severe in northern Arkansas on the evening of the 15th.Pulaski County5 S Little Italy 16 1227CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down onto Arkansas 10.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Marion County3 ENE Bull Shoals Lake Wes 16 1335CST 0 0 75.00K 0.00K Thunderstorm Wind (56EG)Docks were damaged and trees were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Van Buren CountyBotkinburg 16 1345CST 0 0 Hail (1.00)Searcy County1 S Cove 16 1345CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A roof was blown off a shed.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Van Buren County3 WSW Star Bee 16 1415CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A few trees were blown down on Arkansas 254.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Newton CountyParthenon 16 1435CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down, with one of the trees falling on a house.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Newton CountyWayton 16 1450CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were pushed over.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Perry County3 ENE Adona 16 1450CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Two chicken houses were damaged at Wades Crossing.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Newton CountyVendor 16 1455CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Barns were damaged.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.40

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralPerry County2 NE Perry 16 1514CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Power lines were blown down.The approach of a cold front triggered several severe thunderstorms in northern and central Arkansas during the afternoon andevening of the 16th. The atmosphere over Arkansas was warm, humid, and unstable at the time. Note: The estimated wind gustof 52 knots is equivalent to 60 mph.Jackson County1 W Vance 17 0945CST 0 0 50.00K LightningLightning struck an electric substation, knocking out power to more than 3000 customers.Clark CountyBurtsell 17 1705CST1715CST 0 0 Hail (1.00)Jefferson CountySulphur Spgs 17 2230CST 0 0 Hail (1.00)A cold front moving through Arkansas sparked a few severe thunderstorms on the 17th.ARZ023-031Conway - Van Buren28 1100CST1600CST 0 0 WildfireThe Claude Schoolhouse Fire 10 miles southwest of Clinton on the 28th burned a total of 300 acres in Van Buren and Conwaycounties.ARZ063>069Bradley - Calhoun - Cleveland - Desha - Drew - Lincoln - Ouachita29311800CST2359CST 0 0 3.5M Tropical DepressionDrew CountyMonticello Muni Arpt 30 0000CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 4.02 inches in 24 hours.ARZ037>047-052>057-062Arkansas - Clark - Dallas - Garland - Grant - Hot Spring - Jefferson - Lonoke - Monroe - Montgomery -Perry - Pike - Polk - Prairie - Pulaski - Saline - Scott - Yell30310000CST2359CST 0 3 15.25M Tropical DepressionCleveland CountyKingsland 30310300CST1000CST 0 0 0.00K 0.00K Heavy RainRainfall measured 6.95 inches in 31 hours.Calhoun County7 SE Hampton 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 4.12 inches in 24 hours.Dallas CountyFordyce 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 6.10 inches in 24 hours.41

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralDesha CountyKelso 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 4.74 inches in 24 hours.Desha CountyArkansas City 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.00 inches in 24 hours.Desha County2 NNE Rohwer 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 4.99 inches in 24 hours.Drew County2 WNW Monticello 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.09 inches in 24 hours.Jefferson County4 NNW White Hall 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.08 inches in 24 hours.Jefferson County1 SE White Hall 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 4.60 inches in 24 hours.Jefferson County2 SW Pine Bluff 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.80 inches in 24 hours.Jefferson County(PBF)Pine Bluff Arpt 30310600CST1000CST 0 0 0.00K 0.00K Heavy RainRainfall measured 8.50 inches in 28 hours.Lincoln County2 S Crigler 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.39 inches in 24 hours at Cane Creek State Park.Saline CountyBenton 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 4.08 inches in 24 hours.White CountyGriffithville 30 0600CST 0 0 0.00K 0.00K Heavy Rain31Rainfall measured 5.50 inches in 24 hours.ARZ003>007-012>016-021>025-030>034Baxter - Boone - Cleburne - Conway - Faulkner - Fulton - Independence - Izard - Jackson - Johnson -Logan - Marion - Newton - Pope - Searcy - Sharp - Stone - Van Buren - White - Woodruff30310600CST2359CST 0 0 10.75M Tropical DepressionJefferson CountyPine Bluff 30310800CST0900CST 0 0 0.00K 0.00K Heavy RainA storm spotter measured 8.50 inches of rain in 25 hours.42

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralWhite CountySteprock 30310900CST0600CST 0 0 0.00K 0.00K Heavy RainRainfall measured 4.65 inches in 21 hours.Jefferson County(PBF)Pine Bluff Arpt 31 0000CST2359CST 0 0 0.00K 0.00K Heavy RainPrairie County(SGT)Stuttgart Municipal Airp 31Rainfall measured 4.61 inches in 24 hours.0000CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 4.29 inches in 24 hours.White CountySearcy Muni Arpt 31 0000CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 4.19 inches in 24 hours.Jefferson County1 SE White Hall 31 0600CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 6.10 inches from 6 AM on the 31st to 6 AM on the 1st.White County7 NNW Judsonia 31 0600CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 5.61 inches from 6 AM on the 31st to 6 AM on the 1st.White County4 SE Searcy 31 0600CST2359CST 0 0 0.00K 0.00K Heavy RainRainfall measured 4.34 inches from 6 AM on the 31st to 6 AM on the 1st.Dallas County1 NE Beech Grove1 WSW Fordyce Muni Arpt31 0630CST1500CST 0 0 100.00K 0.00K Flash FloodTorrential rains caused flash flooding in Fordyce. Water on streets ranged from several inches to several feet deep.Jefferson County1 WSW White Hall2 NNE Leitner31 0700CST1500CST 0 0 750.00K 0.00K Flash FloodNumerous streets in Pine Bluff flooded. A couple of cars floated down U.S. 63. Some homes were sandbagged, but at least 10homes had water in them, as did four businesses and three government buildings. Several high water rescues were necessary.Schools in Pine Bluff dismissed early. The University of Arkansas at Pine Bluff cancelled afternoon classes. The county judgedeclared a disaster due to the flooding.Jefferson CountyFerda 31 0830CST1500CST 0 0 25.00K 0.00K Flash FloodAreas around Tucker flooded, and flood waters approached Tucker Maximum Security Prison. Water seeped into the newlyrenovated chapel at the prison.43

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, Central and North CentralLonoke County2 NE Toltec2 NNW Parkers Corner31 0900CST1500CST 0 0 50.00K 0.00K Flash FloodSeveral roads went underwater and had to be barricaded. Portions of Arkansas 13, 15, and 31 flooded. Several homes and onechurch on U.S. 165 had water up to their doors. Schools in England were dismissed early due to hazardous road conditions.Prairie County2 NE Four Mile Corner2 N Des Arc31 1030CST1500CST 0 0 25.00K 0.00K Flash FloodSeveral roads were underwater and had to be barricaded.Arkansas CountyGillett 31 1815CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A couple of power poles were blown down around Gillett.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Arkansas CountyDe Witt 31 1820CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A couple of power poles were blown down around DeWitt.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Saline County3 NNE Bland 31 2040CST 0 0 25.00K 0.00K LightningLightning struck a house at Lake Norrell, starting a fire. There was some damage to the roof.Although Isaac was a hurricane in the Gulf of Mexico, it had weakened to a tropical depression by the time it reachedArkansas. Isaac passed through western Arkansas on the evening of the 30th and during the day on the 31st. Positions from theNational Hurricane Center and the Hydrometeorological Prediction Center: August 30th at 10 PM (CDT) 95 miles southsouthwestof Little Rock, August 31st at 4 AM 95 miles west of Little Rock, August 31st at 10 AM 25 miles northeast of FortSmith, and August 31st at 4 PM 40 miles east of Joplin, Missouri. Although Isaac had exited Arkansas by the end of the month,some effects, including bands of thunderstorms spiraling in toward its center, continued through September 1st into the weehours of the 2nd. Isaac brought sustained winds of 23 to 33 mph and wind gusts of 35 to 45 mph in many parts of the state. Thehighest sustained wind in the Little Rock County Warning Area was 33 mph at Little Rock Air Force Base, and the strongestgust was 46 mph at the Pine Bluff airport. The strong winds over a prolonged period caused large numbers of trees to fall.Some of these trees had been weakened by the ongoing drought. Falling limbs and trees took down power lines, leaving morethan 20,000 electric customers in the dark. Isaac also brought widespread rain. Three injuries were reported. Two people wereinjured in Little Rock when a tree fell on a car parked in a driveway; one person was injured in White Hall (Jefferson Co.)when a tree fell on a car. Where bands of showers and thunderstorms lingered over a particular area or where rain moved overthe same area repeatedly, flash flooding occurred. Some of the larger storm totals included 11.29 inches at White Hall(Jefferson Co.), 10.70 inches at Griffithville (White Co.), 10.65 inches at the Pine Bluff Water Plant (Jefferson Co.), 8.90inches at the Pine Bluff airport, 8.88 inches at Judsonia (White Co.), 8.40 inches at Steprock (White Co.), and 8.11 inches atFordyce (Dallas Co.). The lowest barometric pressure reported in the Little Rock County Warning area was 29.51 inches atCamden. The combination of wind and rain caused damage in the rice crop, due to lodging of the rice. Cotton, corn, andsoybeans appeared to have only minor damage. The rain improved prospects for the hay crop, and pastures providing forage forlivestock improved.ARKANSAS, EastARZ008-017>018-026>028-035>036-048>049-058Clay - Craighead - Crittenden - Cross - Greene - Lawrence - Lee - Mississippi - Phillips - Poinsett -Randolph - St. Francis01310000CST2359CST 0 0 0.00K DroughtBeneficial rain fell during the month of August across Eastern Arkansas. As a result, extreme (D3) drought conditions relaxedto severe (D2) across all of East Central Arkansas by the end of August. In addition, exceptional (D4) drought conditionsrelaxed to extreme (D3) conditions across Northeast Arkansas. Many crops that were planted during the spring struggled togrow due to lack of water. Irreversible damage was done to the corn crop as August rains came too late to help the ears fill. TheAugust rains gave soybean and sorghum fields a needed boost. Lake and river levels continued to be at low levels. Burn banswere issued for many counties as a result of the dry conditions. Many counties were declared federal disaster areas as a result ofthe drought conditions.44

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, NorthwestARZ001-010>011-019>020-029Benton - Carroll - Crawford - Franklin - Madison - Sebastian - Washington01310000CST2359CST 0 0 0.00K 0.00K DroughtRainfall was typically sporadic for August across northwest Arkansas until the end of the month when the remnants ofHurricane Isaac moved through the region. Rainfall from this system across northwest Arkansas ranged from one quarter of aninch to about two inches. Given the prolonged period of unusually dry weather, the precipitation that was received in August2012 did little to improve the drought, which had slipped into the exceptional (D4) category across much of northwestArkansas early in the month. Monetary damage estimates resulting from the drought were not available.01040000CST1800CST 1 0 0.00K 0.00K Excessive HeatARZ010-019-029Crawford - Sebastian - Washington01040000CST1800CST 1 0 0.00K 0.00K Excessive HeatThis period of excessively hot weather began in late July and continued into early August 2012. Extremely hot temperaturesand high humidity combined to produce dangerously hot weather conditions across portions of northwest and west centralArkansas. Daily heat index values climbed into the 105 to 115 degree range with little relief occurring at night as temperaturesonly fell into the upper 70s to lower 80s. Two young children died during this period of extremely hot weather after being leftin vehicles for an extended period of time. M2VEBenton County1 WNW Sulphur Spgs 04 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees and snapped large tree limbs.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Benton CountyBella Vista 04 2010CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down many large tree limbs, a few trees, and power lines. A tree fell onto a house.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Benton County1 N Bella Vista 04 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Thunderstorm wind gusts to 81 mph were measured by instrumentation located at the Cooper Elementary School on Highway71.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Benton CountyPea Ridge 04 2028CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind damaged many trees, blew down power lines, and damaged the roofs of homes.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Benton County1 ENE Bentonville 04 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A storm chaser estimated thunderstorm wind gusts to near 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Benton County1 WNW Sulphur Spgs 04 2032CST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees and power lines. Highway 59 was closed due to fallen trees covering it in places.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.45

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, SoutheastWith all of the rain that fell, some of the area rivers filled quickly. Minor flooding was recorded on the lower Pearl River atRockport and Monticello, as well as on Bouie Creek at Hattiesburg and Tallahala Creek at Laurel. The biggest river impact inthe Jackson Hydrologic Service Area was on Black Creek at Brooklyn. Black Creek entered moderate flooding and finallycrested at 26.71 feet on August 31st at 5pm. This will go down as the second highest crest in history for this particular river andforecast point. This river flooding caused damage to 15 homes both upstream and downstream of the river gage.The winds and flooding were not all Isaac brought as a couple of tornadoes touched down in eastern Mississippi. Twotornadoes, one in Clarke County and one in Lauderdale County, occurred during the morning of August 30th. Both were ratedEF-1 with winds around 100 mph. The tornado in Clarke County, near Crandall, resulted in 3 injuries to residents of a mobilehome. One death attributed to Isaac occurred in Holmes County when a 64 year old woman was killed by a tree falling on hercar. Isaac finally moved out of the region by the afternoon of the 30th, and was downgraded to a tropical depression by lateafternoon on the 30th as it continued to track to the northwest into Missouri and the Ohio Valley.ARKANSAS, SouthwestARZ051-059>061-070>073Columbia - Hempstead - Howard - Lafayette - Little River - Miller - Nevada - Union01310000CST2359CST 0 0 0.00K 0.00K DroughtThe month of August continued where July left off concerning the increasing drought conditions across all of SouthwestArkansas. While portions of Southwest Arkansas did see rainfall amounts that were above normal for the month, partly due tothe remnants of Hurricane Isaac which moved through the state at the end of the month, the higher totals were very isolated. Itwas enough for D4 Exceptional Drought conditions which plagued much of the southern half of the state during much of themonth to be improved to D2 Severe and D3 Extreme drought conditions.The following are a few selected cities across Southwest Arkansas with their August rainfall totals and departures from normalas well as their 2012 rainfall totals and departures from normal.Texarkana August rainfall was 2.34. The departure from normal was -0.57. Texarkana yearly rainfall was 22.63. The departurefrom normal was -8.79. Dequeen August rainfall was 2.31. The departure from normal was +0.14. Dequeen yearly rainfall was20.78. The departure from normal was -10.81. El Dorado August rainfall was 4.75. The departure from normal was +1.64. ElDorado yearly rainfall was 26.69. The departure from normal was -7.86.Howard County3 SSE Burg 05 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Several trees were reported downed near Hwy. 278 and Liberty Hill Road.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Sevier County1 NW De Queen 05 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)A large tree was downed blocking Gilson Avenue. Several other trees were also reported down across the county.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Hempstead CountyBlevins 05 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees and powerlines were downed in Blevins, Arkansas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Nevada County1 E Dian 05 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Numerous reports of trees downed near Prescott and across the north central part of Nevada County.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.48

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, SouthwestLittle River CountyAshdown 05 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Several trees were downed across the county.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Hempstead County1 N Patmos 05 1720CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)A large oak tree was downed in the Patmos community.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Columbia County1 W Magnolia 05 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)The window of a house in Magnolia was blown out from debris.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Lafayette County1 NE Bradley 05 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed on Hwy. 29.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Miller County1 E Kiblah 05 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were downed near Kiblah, Arkansas.A frontal boundary was draped across the Middle Red River Valley of Northeast Texas, Southeast Oklahoma and SouthwestArkansas during the afternoon and evening hours of August 5th. Moderate instability was present across the region withtemperatures near 100 degrees and with ample moisture in place...scattered showers and thunderstorms developed across theFour State Region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hempstead County1 W Rocky Mound 06 1626CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Powerlines were downed east of Hope, Arkansas along Hwy. 32.Scattered showers and thunderstorms formed around the eastern periphery of an upper level ridge of high pressure thatextended from New Mexico and the panhandle of Texas into the Southern Plains and Lower Mississippi Valley. An upper levelshear axis and trough of low pressure aloft over Arkansas and East Oklahoma help provide lift and instability as it shifted eastinto the area. A surface boundary over the same area (Oklahoma and Arkansas) also contributed to the development ofconvection. Strong to severe thunderstorms produce scattered damage to trees and power lines with most of the damage causedby wind gusts. Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Columbia County3 N Calhoun 09 2310CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Several trees were downed east of town along Hwy. 98 and CR. 34.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Union County1 SW Griffin 09 2335CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)A large tree was downed across Hwy. 15 southwest of El Dorado in the Three Creeks community.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Columbia County1 W Magnolia 10 0040CST 0 0 0.00K 0.00K Hail (1.00)Cold front remained across Southwest Arkansas and Northeast Texas and served as a focus for strong to severe thunderstormsacross portions of the region. These storms formed in a moderately unstable environment and produced strong and damagingwind gusts as well as large hail and frequent cloud to ground lightning.49

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ARKANSAS, SouthwestNevada County1 E Dian 17 1808CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees and powerlines were downed in Prescott, Arkansas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Nevada County3 E Emmet 17 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Highway 299 was closed due to downed trees east of Emmet, Arkansas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Little River County1 W Cross Rds 17 1853CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Multiple reports of trees downed on Hwy. 59. A tree was also on a powerline on Hwy. 59 with other trees down on Hwy. 41.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Hempstead County3 WSW Anthony 17 1910CST 0 0 20.00K 0.00K Thunderstorm Wind (53EG)CALIFORNIA, Extreme SoutheastA large oak tree fell on the front side of a home south of Hope, Arkansas. There were no reports of injuries.A weak stationary frontal boundary across Northeast Texas and Northwest Louisiana served as a focus for showers andthunderstorms, some of which produced strong and damaging wind gusts. Note: The estimated wind gust of 53 knots isequivalent to 61 mph.CAZ033Imperial County except the Lower Colorado River Valley13 1545PST1700PST 0 0 0.00K 0.00K Dust StormImperial County1 WNW Calexico 13 1600PST1610PST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Thunderstorms developed south of the Mexican border during the afternoon on August 13th. Due to the excessive heat and dryconditions, the storms were able to generate strong, gusty and damaging outflow winds. The strong winds spread to the northand into the southern portion of Imperial county, including the towns of Calexico and Heber. At 410 pm, a trained weatherspotter in Calexico reported a number of trees downed, including some that were blocking a road. Additionally, at 405 pm anemergency manager in Heber reported trees downed by winds estimated to be 50 mph. The strong winds also created duststorm conditions, which lowered visibility to near zero in dense blowing dust. Fortunately, no accidents or injuries werereported due to the strong winds or dense blowing dust.Isolated thunderstorms developed to the south of the Mexican border during the afternoon hours on August 13th. Thecombination of excessive heat and dry conditions allowed the high based thunderstorms to produce strong and gusty outflowwinds, estimated to be 50 mph or higher. The strong outflow winds spread to the north into the southern portions of Imperialcounty, and they generated dense blowing dust and sand, creating dust storm conditions in towns such as Calexico, Holtvilleand Seeley. The winds were strong enough to blow down a number of trees, some of which fell down and blocked roadways.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Imperial County3 W Mt Signal 30 1125PST1330PST 0 0 0.00K 0.00K Flash FloodScattered thunderstorms developed across portions of southwest Imperial county, primarily south and west of El Centro, duringthe late morning hours on August 30th. Due to the very humid and unstable nature of the atmosphere, the thunderstormsproduced excessive rainfall with peak rain rates in excess of 2 inches per hour. The heavy rains prompted the issuance of aFlash Flood Warning for southwest Imperial county, running from 1125 am until 130 pm. At 1145 am, local law enforcementpersonnel reported a road closure at State Route 98 and Drew Road. Water was swiftly flowing across the highway, posing asignficant hazard to motorists. No injuries or water rescues were reported, however.50

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, Extreme SoutheastScattered thunderstorms developed across portions of southwestern Imperial county during the late morning hours on August30th. Some of the most significant storms were south and west of El Centro and Imperial, and they produced locally heavyrains with peak rain rates in excess of 2 inches per hour. The heavy rain led to episodes of flash flooding, which affectedHighway 98 west of Mt. Signal, and Interstate 8. The flooding prompted the issuance of a Flash Flood Warning, which ran until130 pm. Fortunately, no injuries were reported as a result of the flooding.CALIFORNIA, NortheastNevada County2 SW Boca 15 1530PST1645PST 0 0 Hail (0.88)Very large amounts of pea to marble size hail (with some hail as large as nickels) from a slow-moving thunderstorm causedaround 4 inches of accumulating hail. The hail depth was directly verified by a National Weather Service employee. The hailcaused a number of residential gardens to be damaged or destroyed.A slow-moving thunderstorm in the Glenshire area of Truckee produced very heavy rain (over 2 inches in one hour) as well asseveral inches of accumulating hail on the 15th.CALIFORNIA, South CentralA strong, slow-moving thunderstorm in the Glenshire area of Truckee dropped large amounts of small hailwhich reached around 4 inches in depth in this photo. The large amount of melting hail produced the fogseen in the picture. This photo was taken by a Reno National Weather Service employee a couple hours after the event.CAZ096South Sierra Mountains01310000PST2359PST 0 0 0.00K 0.00K WildfireThe Cascade wildfire occurred in Yosemite NP. The ignition date was 6/15/12 at 1300 PDT. The cause was lightning. Thelocation was in Yosemite Valley (Mariposa County). The size was 1115 acres. There were no fatalities and no structures lost.The cost to containment was $75,000.CAZ099Southeast Kern County Desert09 1600PST1610PST 0 0 0.00K 0.00K Dust StormCAZ089>095East Central San Joaquin Valley - Kern County Mountains - South Sierra Foothills - Southeast SanJoaquin Valley - Southwest San Joaquin Valley - Tulare County Foothills - West Central San JoaquinValley10121100PST2200PST 0 0 0.00K 0.00K Heat51

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, South CentralKern CountyMojave Arpt 12 1630PST1640PST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)A thunderstorm created severe outflow winds in Mojave.Note: The measured wind gust of 50 knots is equivalent to 58 mph.CAZ089>092East Central San Joaquin Valley - Southeast San Joaquin Valley - Southwest San Joaquin Valley - WestCentral San Joaquin Valley13 0250PST2200PST 0 0 0.00K 0.00K HeatKern County1 SW Edwards 14 1450PST1515PST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)Edwards Runway wind sensors measured wind gusts up to 67 mph from a severe thunderstorm downburst and outflow.Blowing dust also reported at Edwards AFB.The upper-level ridge centered over the Four Corners region built westward into California on August 6th, heralding the start ofa near-record string of days with above-normal temperatures. After two days with highs of 99, Fresno again had a triple-digithigh, the first of 19 consecutive days when the high was 100 degrees or higher. An Excessive Heat Watch was issued on the 7thfor elevations below 4000 feet from August 10th through the 12th for near-record high temperatures.Monsoonal moisture wrapping around the ridge moved into California, triggering thunderstorms over the Southern SierraNevada and the Kern County desert on August 9th. One afternoon thunderstorm that moved into Kern County between Boronand Edwards AFB had gusts to 45 mph. Other thunderstorms just east of Kern County, or over western San BernardinoCounty, produced gusts to 45 mph as they collapsed during the evening hours. These gusts also moved into southeastern KernCounty. A spotter in Rosamond reported a wind-driven dust cloud that moved through Rosamond.The 9th also saw the Excessive Heat Watch upgraded to a Warning as computer model runs continued to forecast near-recordheat for August 10th-12th. With well above-normal temperatures and abundant monsoonal moisture, convection again fired upover the mountains and desert on the 10th. During this day, lightning sparked another large wildfire in the Kern Countymountains, called the Jawbone Complex (about 15 miles northeast of Tehachapi).As expected, temperature records began falling as the strong upper-level ridge remained in place over the southwestern UnitedStates. The Kern County desert initially recorded the warmest temperatures; however, enough monsoonal moisture returned toallow blow-off from the isolated thunderstorms to form a cloud layer over these areas by the 11th so that temperaturesmoderated. In contrast, temperatures continued to warm over the San Joaquin Valley, where Fresno and Bakersfield reached110 degrees on the 13th.On August 12th, a thunderstorm developed near Mojave that produced a 57 mph wind gust, prompting a severe thunderstormwarning to be issued. Thunderstorms lasted through the afternoon and early evening hours during this day throughout the desertareas in Kern County.By August 13th, an upper-level low was located off the Pacific coast of Baja California. The combination of the ridge over theSouthwest and the low off the coast kept a southeasterly flow over California that continued to bring monsoonal moisture intothe state from the south. This moisture produced mid-level clouds that persisted over parts of the San Joaquin Valley, evenduring the night-time hours and kept overnight lows at record or near-record high values.Thunderstorms developed again by midday on August 13th, with lightning strikes occurring from the eastern TehachapiMountains north to Yosemite National Park. Some of these strikes triggered wildfires in the Southern Sierra Nevada and nearTehachapi, including the multi-fire Tehachapi Complex, and outflow winds gusted to around 50 mph in Ridgecrest. At thelower elevations, well-above-normal temperatures continued, prompting a one day extension of the Excessive Heat Warning.August 14th saw more thunderstorms over the mountains and desert as monsoonal moisture continued to stream into the hotairmass over the central California interior. One thunderstorm over southeastern Kern County reached severe levels, as outflowwinds reached 67 mph at Edwards Air Force Base. Also, clouds from this monsoonal moisture kept overnight lows at recordwarm levels. Both Bakersfield and Fresno set high minimum temperature records. Bakersfield never got below 83 degrees, andFresno was only a degree cooler.Local media reported a window washer in Bakersfield was hospitalized and suffered heat illness during the August 14th heatwave. Note: The measured wind gust of 58 knots is equivalent to 67 mph.52

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, South CentralKern County1 E Ridgecrest 22 1535PST 0 0 0.00K 0.00K Funnel CloudA trained storm spotter reported a funnel cloud near Ridgecrest that lasted for a few minutes.Kern County3 NW Sealers 22 1638PST1838PST 0 0 60.00K 0.00K Flash FloodA trained storm spotter captured video footage of a flash flood on US 395 near Randsburg and Garlock Roads south ofRidgecrest. Two vehicles were damaged and the highway patrol closed the highway for several hours.An upper-level disturbance that moved across central California during the night of August 17th-18th brought enoughinstability to the monsoonal moisture aloft to trigger widespread light showers across the central California interior. By sunrise,lightning had been reported in Clovis and in the Southern Sierra Nevada foothills near Coarsegold. The clouds also kept lowtemperatures abnormally warm, with Bakersfield having a low of 80 on August 18th, and Fresno a low of 75. Both set highminimum temperature records for the 18th. The next day, Fresno tied its record high minimum temperature of 74, a recorduntouched for more than a century (since 1892).Thunderstorms developed over the Southern Sierra Nevada and the eastern Kern County desert during the afternoons of August21st and 22nd. Over 300 lightning strikes were recorded over the Southern Sierra Nevadaâmainly near the crestâduring theearly morning hours of the 22nd, as an upper level low-pressure system moved across central California. Later on August 22nd,as an upper-level low traversed Kern County, a funnel cloud was observed over Ridgecrest during the late afternoon, followedby the development of a very strong thunderstorm near Randsburg less than an hour later. Outflow boundaries fromthunderstorms over southeastern Tulare County, southern Inyo County and northwestern San Bernardino County collided toform the equivalent of a standing-wave node just north of Randsburg. This kept the thunderstorm stationary as it strengthened,resulting in very heavy localized rainfall. Flash flooding closed U.S. 395 from near Randsburg north to the Garlock Road asseveral inches of water flowed across the roadway. Later that evening, runoff from rain falling on the El Paso Mountainsproduced minor mud and rock slides on the Red Rock-Randsburg Road.By August 23rd, an upper-level trough was dropping out of the Gulf of Alaska. As the trough approached the coast late on the24th, the marine layer began deepening and spilling into the San Joaquin Valley. The shallow layer of marine air that initiallypushed into the central and southern San Joaquin Valley finally ended the string of 100-degree days at Fresno. The high at bothBakersfield and Fresno was 98 degrees.The marine layer continued to deepen through the day of August 25th, and by the evening had a depth in excess of 3000 feet.Marine air began spilling through the passes and canyons of the Temblors and Diablo Range, creating gusts to around 35 mphthrough and below the Pacheco Pass and near Sunflower Valley. Temperatures in the central and southern San Joaquin Valleycontinued to cool, with Fresno only reaching a high of 92 degrees on the 26th; Bakersfield was a degree warmer.Cool temperatures continued on August 27th, and the morning that day was the coldest of the month for both Bakersfield andFresno. High pressure subsequently began rebuilding into California from the east, with another surge of monsoonal moisturewrapping around the edge of the ridge and moving into southern California. More monsoon-related activity occurred in thedesert areas of Kern County and along the crest of the southern Sierra Nevada until the 30th. In fact, some warnings (includingone severe thunderstorm and one flash flood warning) were issued on the 30th for Edwards AFB, and a flood advisory wasissued for much of the desert in Kern County for the afternoon and evening hours. A wind gust of 67 mph was reported at onestation on Edwards AFB on the afternoon of the 30th due to thunderstorm outflow winds. This storm also dumped 0.35 inch ofrain in less than an hour at the base.Temperatures in the central and southern San Joaquin Valley warmed back into the mid to upper 90s on August 28th, andcontinued to warm until the 30th as the upper-level ridge prevailed over the area. By the 31st, the ridge began to weaken andmove eastward as cooler marine air once again began to filter into the San Joaquin Valley; this allowed temperatures to returnto near average, or mainly lower to mid-90s for maximum diurnal temperatures, in this area. An upper-level trough allowed fora more westerly flow over the region, so locations elsewhere showed a slight decrease in temperature.As of August 31st, the average temperature at Fresno was 86.5 degrees, which was 4.8 degrees above normal. This is thewarmest August on record for Fresno, the previous warmest being August 1931 with an average temperature of 84.4 degrees.The average temperature at Bakersfield was 87.0 degrees. This would rank as Bakersfieldâs fifth warmest August. (For moreinformation, see âThe 10 Hottest Augusts tableâ on the next page).Fresnoâs 19-day string of 100-degree days tied for the third longest string of consecutive 100-degree days on record. August2012 had a total of 23 days when the high temperature reached 100 degrees or more at Fresno; this tied for the second greatestnumber of 100-degree days for the month of August which also occurred in 1910.53

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SoutheastInyo County3 E Amargosa11 SW Ryan03 1930PST2200PST 0 0 100.00K 0.00K Flash FloodThe following areas in Death Valley National Park were flooded: Highway 190 near Dante's View (with two cars stuck),Dante's View Road, Stateline Road east of Death Valley Junction, Badwater Road, Natural Bridge Road, Devil's Golf Course,20 Mule Team Road, and Charcoal Kiln Road.Monsoon moisture fueled another round of thunderstorms over the Mojave Desert. A few storms produced severe weather andflash flooding.CAZ522Death Valley National Park07 1500PST 1 0 0.00K 0.00K HeatA runner died of heat stroke in Death Valley. M34OUSan Bernardino CountyYucca Vly 11 1349PST1500PST 0 0 1.00K 0.00K Flash FloodSix inches of water flowed down Buena Vista Drive.San Bernardino County4 NW Joshua Tree 11 1500PST 0 0 5.00K 0.00K LightningLightning struck and killed a horse, and also started a smoldering fire in a barn which burned to the ground three days later.San Bernardino County2 SSE Landers 12 1440PST1600PST 0 0 1.00K 0.00K Flash FloodSix inches of water along with rocks and debris flowed across Avalon Avenue between Winters and Aberdeen.San Bernardino County1 WSW Twenty Nine Palms 12 1520PST1530PST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds tipped over a large camper and uprooted several fence poles.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.San Bernardino County3 NE Yucca Vly Arpt 12 1533PST1630PST 0 0 1.00K 0.00K Flash FloodEight to 10 inches of swiftly flowing water covered the intersection of Yucca Mesa Road and Buena Vista Drive.Inyo County2 S Death Vly Arpt 12 2115PST2200PST 0 0 20.00K 0.00K Flash FloodParts of Mosaic Canyon Road were washed out.Inyo County3 SSE Keeler 13 1331PST1500PST 0 0 5.00K 0.00K Flash FloodFlash flooding rendered the intersection of Highways 190 and 136 impassable.Monsoon moisture fueled another round of thunderstorms over the Mojave Desert and southern Great Basin. Several stormsproduced severe weather and flash flooding.Inyo County9 NW Harrisburg 18 1622PST1800PST 0 0 10.00K 0.00K Flash FloodHighway 190 was washed out and closed at mile marker 79.54

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SoutheastMonsoon moisture fueled more thunderstorms across the Mojave Desert. A few storms produced severe weather and/or flashflooding.San Bernardino County4 ENE Elora Station 22 1005PST1200PST 0 0 50.00K 0.00K Flash FloodThe Mid Hills and Hole in the Wall campgrounds in the Mojave National Preserve were cut off by flash flooding, strandingcampers.San Bernardino County1 ENE Joshua Tree 22 1030PST1130PST 0 0 2.00K 0.00K Flash FloodWater flowed over Highway 62 at Sunburst Street, leaving mud and debris on the highway.San Bernardino County5 SW Barnwell 22 1130PST1230PST 0 0 10.00K 0.00K Flash FloodSeveral unpaved roads were closed due to flooding in the southeast part of the Mojave National Preserve. Sections of pavedroads were covered with debris and grapefruit sized rocks.San Bernardino County1 E Mountain Pass 22 1134PST1200PST 0 0 2.00K 0.00K Flash FloodRocks and debris were washed across the Bailey Road off ramp from I-15 North.San Bernardino County5 NW Old Dale 22 1200PST1400PST 0 0 1.00K 0.00K Flash FloodAmboy Road was closed near Shadow Mountain Road due to flash flooding.San Bernardino County1 NE (NXP)Mcaf Twentynine 22 1300PST1330PST 0 0 2.00K 0.00K Flash FloodWater with rocks and debris ran across Highway 62 near Godwin Road.San Bernardino County1 ENE Homer 22 1434PST1530PST 0 0 10.00K 0.00K Flash FloodOne foot of water and debris flowed across Goffs Road. A truck was stuck in the water.Inyo County3 SSE Lone Pine Arpt 22 1445PST1600PST 0 0 5.00K 0.00K Flash FloodHighway 136 was closed between Highways 395 and 190 due to flash flooding.Inyo County2 W Scottys Castle 22 1510PST1600PST 0 0 50.00K 0.00K Flash FloodFlash flooding caused significant pavement damage to Scotty's Castle Road between the castle and the Death Valley NationalPark boundary. The road to Ubehebe Crater was also closed due to flooding.55

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SoutheastSan Bernardino County3 W Klinefelter 22 1600PST1800PST 0 0 10.00K 0.00K Flash FloodHighway 95 was closed due to water and debris flowing across the road in multiple places from mile marker 61 to just south ofthe Nevada state line. A big rig was stalled in one of the flooded areas.Another surge of monsoon moisture led to an outbreak of thunderstorms over the Mojave Desert and southern Great Basin. Alow pressure system further enhanced the storms on the 22nd.San Bernardino County1 NE Four Corners 29 1245PST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)This gust was estimated by a gas station employee in Kramer Junction.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.San Bernardino County1 ENE (NXP)Mcaf Twentynine 29 1904PST2000PST 0 0 5.00K 0.00K Flash FloodCALIFORNIA, SouthwestHighway 62 was closed from Godwin Road to Highway 177 due to flooding in several areas along the highway.Lingering monsoon moisture continued to fuel scattered thunderstorms over the Mojave Desert. Isolated severe weather andflash flooding occurred.CAZ048San Bernardino County Valley/The Inland Empire01021045PST1300PST 0 3 200.0K 0.00K WildfireThe Volcano fire started around 1045 PST on the 1st, near the intersection of Tenaja Road and Via Volcano, in La Cresta (nearMurrieta). Voluntary evacuations were in place for residents in the area at a local high school. One unidentified structure wasdestroyed. Three firefighters received minor injuries; one was transported by paramedics for treatment. The fire burned a totalof 350 acres before being fully contained around 0700 PST on the 2nd. The cause of the fire was determined to be motorizedequipment used to clear brush.CAZ058San Diego County Mountains09121213PST1730PST 0 2 0.00K 0.00K WildfireThe Chihuahua fire was started by lightning around 1213 PST on the 9th, along Chihuahua Valley Road near Sunshine Summit,northwest of Warner Springs. There were 250 residences and 100 other structures threatened by the fire, leading to mandatoryevacuations of the residences and a Boy Scout camp along Chihuahua Valley Road. A hard closure was in place on ChihuahuaValley Road at Highway 79. No structures were destroyed, but two firefighters received unknown injuries. The fire burned atotal of 2007 acres before being fully contained around 1730 PST on the 12th.San Bernardino County3 SSW Pinon Hills3 S Phelan09 1230PST1630PST 0 0 0.00K 0.00K Flash FloodA thunderstorm with heavy rain and one-half inch hail began around 1230 PST. Although the spotter only measured 0.68inches in approximately 2 hours, Swartout Creek is overflowing its banks. Cars are turning around due to flooded roadways,not wanting to cross.San Bernardino CountyRunning Spgs 09 1230PST1500PST 0 0 0.00K 0.00K Heavy RainThe Running Springs mesonet station recorded 2.69 inches of rain, the bulk of which fell between 1254 and 1354 PST.56

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestSan Bernardino County2 ESE Adelanto3 WSW Apple Vly Arpt09 1430PST1530PST 0 0 0.00K 0.00K FloodCalifornia Highway Patrol reports roadway flooding along State Route 18 at the junction with Sheep Creek.Deep monsoonal moisture rotated around a large area of upper-level high pressure to initiate thunderstorms, mainly over theSan Bernardino County mountains and upper deserts. These storms produced very heavy rainfall, leading to flooding in theareas of Wrightwood in the mountains and Victorville in the upper desert. Hail less than one inch was also observed with a fewof the storms.San Bernardino County1 N Baldwin Lake6 NNE Green Vly Lake11 1030PST1330PST 0 0 0.00K 0.00K Flash FloodVery heavy rainfall in the Big Bear area began around 1045 PST, resulting in minor street flooding in Big Bear City, as well asflash flooding along Highway 38 at mile marker 19. Cal Trans and CHP closed Highway 38 at this point due to a stream ofwater rushing down the road with embedded boulders. A nearby spotter measured rainfall of 0.16 inches in 10 minutes and0.95 inches in one hour, along with pea sized hail.San Diego CountyCampo 11 1230PST1330PST 0 0 5.00K 0.00K LightningHeavy thunderstorm moving north toward Highway 94 and Interstate 8 with frequent lightning. Lightning hit the spotter's wellin her yard. Heavy rain also caused minor flooding on Buckman Springs Road.San Bernardino County7 N Adelanto Hansen Arpt10 SSW Daggett11 1300PST1400PST 0 0 0.00K 0.00K FloodFlooding observed on HIghway 395 as well as along Highway 18 and Phelan Road. Water was flowing on streets on both sides.Up to 4 inches of water was flowing at the intersection of Highway 395 and Mojave Road, with up to 8 inches of standingwater at dips in the roads.Riverside CountyLake Elsinore3 ESE Rancho CaliforniaFlooded roadway in Victorville. Photo courtesy of NWS employee, Alex Tardy.11 1400PST1600PST 0 0 5.00K 0.00K Thunderstorm Wind (76MG)The Temescal RAWS near Lake Elsinore measured a wind gust of 88 mph between 1432 and 1532 PST, associated with anearby warned thunderstorm.57

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestWinds were estimated at 60-65 mph from a microburst around 20 yards wide that caused damage in a residential neighborhoodin northeast Temecula. It descended in a backyard and blew down the fences on the north and south ends of the yard. Thefences were blown outward from the yard, indicative of a downward and outward thrust of winds.Several large branches were broken and a few small trees downed in Trilogy at the Glen Ivy Resort and Spa. Estimated windsfrom the damage was 60 mph as determined by an NWS employee.These days were a continuation of the deep monsoonal flow that persisted over the area through much of the month.Thunderstorms developed each afternoon over the mountains, deserts and northern inland valleys, and quickly diminished bysunset with areas of rural, urban and flash flooding. Flooding activity on the 11th was focused around Big Bear and Victorvillein San Bernardino County, as well as Campo in San Diego County. Thunderstorm activity also developed along the ElsinoreConvergence Zone in eastern Riverside County. Thunderstorms in this area became severe and produced a couple damagingmicrobursts along with the small hail and heavy rain. Similar storms in the Elsinore area on the 12th produced a landspout andanother damaging microburst. Significant flooding was also observed in the Forest Falls area on that day. Mostly minor urbanflooding was observed in the upper deserts and Forest Falls again on the 13th. Note: The measured wind gust of 76 knots isequivalent to 87 mph.Large branches down from thunderstorm wind damage near Temecula. Phto courtesy of NWS employee, Alex Tardy.San Diego County1 ENE Warner Spgs 11 1500PST1600PST 0 0 0.00K 0.00K FloodRich Thompson, the IMET at the Chihuahua Fire heard reports of flooding on a few roads in and around the fire on the fireradios. A few crews were stranded temporarily, but no one was injured. He estimates approximately 0.26 to 0.50 inches of rainin less than one hour at the base camp and up to one inch in one hour over the fire itself.The Chihuahua fire was started by lightning around 1213 PST on the 9th, along Chihuahua Valley Road near Sunshine Summit,northwest of Warner Springs. There were 250 residences and 100 other structures threatened by the fire, leading to mandatoryevacuations of the residences and a Boy Scout camp along Chihuahua Valley Road. A hard closure was in place on ChihuahuaValley Road at Highway 79. No structures were destroyed, but two firefighters received unknown injuries. The fire burned atotal of 2007 acres before being fully contained around 1730 PST on the 12th.San Bernardino CountyForest Falls 12 1300PST1400PST 0 0 0.00K 0.00K Flash FloodA spotter heard on a police scanner that a 3-foot wall of water came down near forest Falls and Angelus Oaks. Policeevacuated people that were down at the bottom of the Santa Ana River/Mill Creek. The flooding was estimated to haveoccurred between 1330 and 1400 PST.San Diego County3 WNW San Felipe3 ENE Lake Henshaw12 1300PST1400PST 0 0 0.00K 0.00K Flash FloodCHP closed San Felipe Road (S2) between mile markers 2 and 3 due to mud and water that is 3 feet deep.58

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestSan Diego CountyWarner Spgs 12 1300PST1400PST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)The SDGE East Warners sensor recorded a 58 mph gust during a thunderstorm. A spotter also reported marble to penny sizedhail (0.75 inch) 2 to 3 miles east of the San Felipe Road turnoff of SR 79.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Riverside CountyNuevo 12 1430PST1600PST 0 0 200.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm caused significant straight-line wind damage from a wet microburst on the east side of Perris on NuevoRoad near Menifee Road. Several power poles were snapped completely and fell over like dominoes. Several vehicles weretrapped in between the downed poles, though no one was injured. Law enforcement was called in to close off several roads inthe area. The wind also tore up some roofing on a few homes in the area. This damage was likely caused by winds from amicroburst and not the nearby landspout, though both were the result of the same parent thunderstorm cell.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.A string of several power poles were knocked down by straght line winds from a microburst along NuevoRoad near Menifee Road. Photo courtesy of Frank Bellino of the Riverside Press Enterprise.Riverside County2 ESE Perris 12 1430PST1545PST 0.5 50 0 0 0.00K 0.00K Tornado (EF0)A land spout tornado was associated with and southwest of the parent (non-supercell) thunderstorm that was over Nuevo, onthe east side of Perris. The land spout appeared to be over the fields just east of or near Interstate 215. Separate wind damagefrom the parent thunderstorm was observed to the northeast over Nuevo on Menifee Road. There was no apparent damagefrom the land spout itself. A spotter also sent in video of the land spout.59

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestLandspout tornado observed just east of Perris on the 12th. Photo courtesy of spotter David Martinez.Riverside County2 S Perris 12 1515PST1545PST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was observed just south of Perris from approximately 1525 to 1535 PST on the 12th. The funnel was observedby a spotter located near Albert Hill, north of Lake Elsinore as the severe thunderstorm moved east along Highway 74. Thefunnel was not determined to be associated with the landspout east of Perris.Riverside County3 WSW Perris 12 1515PST1630PST 0 0 20.00K 0.00K Thunderstorm Wind (48EG)On the west side of Perris, on Olive and Ellis Streets and just north of Highway 74, several small and large tree limbs down.Two power poles were broken by wind but remained leaning on Ellis Street just north of Highway 74. One rural street in thatarea was closed due to water about 12 inches deep. Estimated wind gusts were 50-55 mph for just this area. This damage wasdetermined to be associated with a wet microburst from the severe storm in the area.These days were a continuation of the deep monsoonal flow that persisted over the area through much of the month.Thunderstorms developed each afternoon over the mountains, deserts and northern inland valleys, and quickly diminished bysunset with areas of rural, urban and flash flooding. Flooding activity on the 11th was focused around Big Bear and Victorvillein San Bernardino County, as well as Campo in San Diego County. Thunderstorm activity also developed along the ElsinoreConvergence Zone in eastern Riverside County. Thunderstorms in this area became severe and produced a couple damagingmicrobursts along with the small hail and heavy rain. Similar storms in the Elsinore area on the 12th produced a landspout andanother damaging microburst. Significant flooding was also observed in the Forest Falls area on that day. Mostly minor urbanflooding was observed in the upper deserts and Forest Falls again on the 13th. Note: The estimated wind gust of 48 knots isequivalent to 55 mph.60

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestBroken power pole on the west side of Perris on Ellis Street, just north of Highway 74. Photo courtesyof NWS employee Alex Tardy.CAZ058San Diego County Mountains12191900PST0530PST 0 0 0.00K 0.00K WildfireThe Vallecito Lightning Complex was started by lightning around 1900 PST on the 12th. This complex was composed of 3larger fires greater than 500 acres and 3 smaller fires of 5 acres or less. The Vallecito Fire burned 519 acres just southeast ofJulian. The Stewart Fire burned 10,632 acres near Scissors Crossing northeast of Julian. The Wilson Fire burned 11,669 acres,also near Scissors Crossing northeast of Julian. The Cooper, Wynola and Shoots Fires, together, burned around 7 acres.Evacuations were in place for these areas. No structures were destroyed, but 4 firefighters received unknown injuries. All fireswere reported 100% contained on the 19th around 0530 PST after burning a grand total of 22,828 acres in eastern San DiegoCounty.Firefighters battle one of the fires in the Vallecito Complex. Photo courtesy of Kevin Pack of CalFire.CAZ056Riverside County Mountains14201156PST0700PST 0 1 1.0M 0.00K Wildfire61

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestThe Buck fire started around 1156 PST on the 14th due to lightning, along Sage Road between Lewis Valley Road and BuckRoad near the town of Sage in Riverside County. Voluntary evacuations were in place. Four residences were destroyed. Fivefirefighters received minor injuries and one civilian received burn injuries. The fire burned a total of 2681 acres before beingfully controlled around 0700 PST on the 20th.Aerial view of the Buck Fire line. Photo courtesy of NBC 7 San Diego news.San Diego County3 N Dulzura 16 1130PST1230PST 0 0 0.00K 0.00K Flash FloodCHP is reporting a mud, dirt and rock slide along Deerhorn Valley Road. They also reported that heavy rain was causingflooding near Otay Lakes Road and that the bridge near the fire station was about to be washed out. No word was received if itactually did wash out.Riverside County2 NNE Sage 16 1230PST1300PST 0 0 2000.00K 0.00K Thunderstorm Wind (52EG)Rob Balfour reported strong winds at the Buck Fire base camp at Diamond Lake, with estimated max gusts of 60 mph. Thewinds destroyed two large tents, several camping tents and some awnings. A few port-a-potties overturned as well.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.San Bernardino County2 WNW Forest Falls 17 1230PST1330PST 0 0 0.00K 0.00K Flash FloodSeveral mudslides were reported in the Forest Falls area, the first of which was reported at Valley of the Falls Drive and LilacRoad with mud over the roadway. Numerous side streets are also covered in mud, with up to 5 feet of mud and debris in MillCreek. No rescues or injuries but people are stuck in their cars and houses because of mud in the roads. The Yucaipa Ridge raingauge (owned San Bernardino County Flood Control and just south of Forest Falls) reported massive rainfall of 5.36 inches in 1hour and 45 minutes, between 1200 and 1347 PST. A short time later, the Mill Creek tributary, Rattlesnake Creek, was reportedat bank-full. A spotter sent in a video of the water and debris flow in the normally dry creek, which was up to the bridge at onetime.62

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestSan Bernardino CountyHesperia3 NW Cedarpines ParkScreen captures from the spotter video depicting very large flow of water, mud and debris in the normallydry Mill Creek. Video/photos courtesy of George Forgues.17 1415PST1445PST 0 0 0.00K 0.00K Debris FlowSpotter SBD625 reported debris flows through canyons near Hesperia about one foot deep and 10 feet wide.San Diego County4 SE Alpine6 SSW Descanso17 1415PST1445PST 0 0 0.00K 0.00K FloodSpotter SDG437 reported mud and debris on the road at Japatul Valley and Lyons Roads as a result of a stationary and heavythunderstorm over the area.San Bernardino County4 WSW Thorn17 1500PST3 WNW (VCV)George Afb Vict1645PST 0 0 0.00K 0.00K Flash FloodSpotter 625 reported 6 to 8 inches of water on the roadway near Bear Valley and Amethyst with the roadway completelycovered with debris and water. There was also water flowing rapidly across the roadway approximately 1 to 2 feet deep, notallowing cars to pass. The same spotter also reported that the roadway at Corwin and Waalew Roads was covered with debrisbut still passable. The debris consisted of mostly dirt and rocks with an estimated 5 inches of water flow. A driver was stuck inwidespread urban flooding at Topaz and Luna Roads in Victorville. Water was flowing very strong along Arrowhead Road atthe Victorville Golf Course, resulting in a water rescue. Another spotter reported 2 to 4 inches of water over the intersection ofHighway 395 and Highway 18, containing a lot of debris and stranding a few cars.Deep, monsoonal flow continued from earlier in the month. Some minor flooding occurred near Dulzura in San Diego County.Flash flooding occurred in Apple Valley and Victorville (one high water rescue, damage to property and school and multipleroad closures), mud and debris on roadways in Alpine, and more flash flooding in Mill Creek at Forest Falls. The Victorvillearea was hardest hit during these two days.63

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestEmergency personnel rescue a motorist from a vehicle in fast flowing water from flooding in the Victorvillearea. Photo courtesy of James Quigg of the Daily Press newspaper.CAZ048San Bernardino County Valley/The Inland Empire20 1052PST1900PST 0 0 0.00K 0.00K WildfireThe Vista fire started around 1052 PST on the 20th, along Vista Road at Rawson Road in Winchester in Riverside County. Noevacuations were needed and no structures were threatened or destroyed. Two firefighters received minor injuries. The fireburned a total of 500 acres before being fully controlled around 1900 PST on the 20th (same day). The cause of the fire wasdetermined to be a flare used to kill small animals, called a Gopher Gasser.San Diego County5 SE Ranchita3 NNE Julian21 1300PST1400PST 0 0 0.00K 0.00K FloodA spotter reported 2 to 3 inches of water flowing along part of Route 78 and County Road S3 (San Felipe Road). A BorregoCounty Road Maintenance crew also reported water and debris flowing across San Felipe Road just north of Highway 78between mile markers 12 and 14.San Diego County10 NNW Ocotillo Wells9 NE Desert Lodge22 1330PST1430PST 0 0 0.00K 0.00K FloodCalifornia Highway Patrol reported roadway flooding along county highway 22 (Borrego Salton Sea Way).Isolated monsoon activity occurred on the 21st and 22nd from continued moist, southeast flow into southern California. Thisactivity was mainly concentrated in the San Diego County mountains and deserts. Several reports of roadway flooding anddebris occurred with these thunderstorms.Riverside County1 NNW Cathedral City 30 1300PST1500PST 0 0 150.00K 0.00K Flash FloodMajor flash flooding in Cathedral City with 1 to 2 feet of rapidly moving water, closing several roads including East PalmCanyon (Highway 111) and Araby Drive. Water forced mud and debris into several businesses in town, causing significantdamage.64

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestCars driving through a flooded roadway in Cathedral City. Photo courtesy of the Desert Sun newspaper.San Diego CountyDescanso 30 1300PST1345PST 0 0 0.00K 0.00K Flash FloodA spotter estimated 2 to 3 feet of water flowing across Highway 79 a mile west of Chihuahua Valley Road. In addition, treesand branches 3 to 5 inches in diameter were floating across the roadway.San Bernardino County5 S Apple Vly1 WSW Apple Vly ArptFlooding at Highway 79 and Chihuahua Valley Road near Descanso. Photo courtesy of a local weather spotter.30 1315PST1400PST 0 0 0.00K 0.00K FloodSpotter reported 0.75 inches of rain in 20 minutes, leading to urban flooding near the intersection of Central and Waalew inApple Valley with an estimated 6 inches of water in the low sections of roadways. Another spotter in nearby Lucerne Valleyreported 1 to 2 inches of standing water along Highway 47 on the north side of town.65

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestRiverside County2 ESE Moreno Valley2 N Box Spgs30 1330PST1500PST 0 0 100.00K 0.00K Flash FloodHeavy rain caused flash flooding which closed San Timoteo Canyon Road. Six vehicles were stuck in the water. One personwas rescued from a vehicle surrounded by a mud flow on San Timoteo Canyon Road and Live Oak Canyon Road. Rainfall of1.53 inches fell in one hour at March AFB in Riverside. Eastbound Highway 60 was closed at Redlands Boulevard due toflooding as well. Mud and water also inundated a few homes in the Moreno Valley area. At least 1 swift water rescue neededto be performed, including the one at Oliver Street and Cactus Avenue in Moreno Valley. Firefighters had to rescue personstrapped in their vehicle with water reported up to the windows.San Diego County7 NW Agua Caliente Spgs7 SW Desert LodgeCar with wheels almost covered in flooded roadway in Moreno Valley. Photo courtesy of the Press Enterprise newspaper.30 1330PST1430PST 0 0 0.00K 0.00K Flash FloodHeavy rain resulted in a debris flow on Highway 78 near Shelter Valley and Lizard Creek. A 2-foot boulder had to be removedfrom the roadway and one lane of the highway was closed.Rocks, mud and debris covering the roadway along Highway 78 at Lizard Creek. Phot courtesy of Roger Pierce,MIC at the San Diego NWS.66

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, SouthwestRiverside County(RIV)Riverside Arpt 30 1330PST1400PST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)The March AFB ASOS recorded a peak gust of 61 mph at 1347 PST. One of the planes at the museum was turned 180 degreesby the severe winds.An Atmospheric Science teacher at nearby UC Riverside estimated wind gusts to 60 mph from a passing thunderstorm goingthrough campus around the same time.Note: The measured wind gust of 53 knots is equivalent to 61 mph.Riverside CountyCathedral City 30 1345PST1415PST 0 0 1.00K 0.00K LightningSpotter RIV230 reported heavy rain and lightning. Lightning struck a nearby palm tree, which then burst into flames. Windsalso gusted to 25 mph.San Bernardino County3 NW Thorn5 WNW Helendale30 1500PST1600PST 0 0 3.00K 0.00K Flash FloodHeavy rain from thunderstorms just north of Victorville resulted in flooding on National Trails Highway at Lynhaven Lane anda swift water rescue of a van caught in 4 feet of moving water. Barbosa Road was also washed out.Riverside County3 E Alberhill1 ENE ElsinoreA truck passes through a flooded underpass near Victorville. Photo courtesy of Emergency Manager Nikki Metzger.30 1500PST1600PST 0 0 0.00K 0.00K FloodA spotter reported street flooding with water up to the curbs in some places at the north end of Lake Elsinore near Albert Hill.The month ended with one last major monsoon day. Convection developed rapidly and near the same time as an approachingshort wave trough and daytime heating. Flash flooding was reported in many locations with several road closures in the InlandEmpire, Victorville, Chihuahua Valley and the Coachella Valley (Cathedral City). Extensive damage was done by flood watersin Moreno Valley, Victorville and Cathedral City with a few high water rescues and residences and businesses inundated withmud and debris.67

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CALIFORNIA, UpperSiskiyou County3 N Happy Camp 05 1710PST1720PST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A member of the public reported several trees down due to thunderstorm related wind gusts. The Squaw Peak RAWS just overthe Oregon border recorded a gust to 53 mph at 1739 PST and a gust to 75 mph at 1839 PST. These gusts were associated withthe outflow from the same storm, so it is assumed that winds reached severe thunderstorm criteria over Siskiyou county as well.Several thunderstorms developed across the area on this afternoon and evening...and a few of them achieved severe status.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.CAZ080Western Siskiyou County05311800PST2359PST 0 0 0.00K 0.00K WildfireThe Fort Complex, made up of several fires, the largest and longest lasting of which was the Goff fire. The fires were startedby lightning on 08/05/12, and the Goff fire was still burning and growing at the end of the month.CAZ085Modoc County21281247PST0000PST 0 0 0.00K 0.00K WildfireThe Antelope wildfire was started by lightning on 08/21/12. It was contained by 08/28/12.COLORADO, Central and NortheastSedgwick County13 SE Julesburg 02 1743MST 0 0 Hail (1.75)A severe thunderstorm produced hail, up to golfball size, in eastern Sedgwick County.Broomfield County1 NNE Broomfield 11 1810MST 0 0 Thunderstorm Wind (52MG)COLORADO, East CentralA severe thunderstorm produced a wind gust to 60 mph at Rocky Mountain Metropolitan Airport. Note: The measured windgust of 52 knots is equivalent to 60 mph.Yuma County3 ESE Yuma Arpt 01 1656MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The spotter estimated peak winds to be near 60 mph.Scattered thunderstorms moved northeast out of Lincoln county during the late afternoon and crossed into Yuma county. Astrong outflow boundary produced a marginally severe wind gust near the town of Yuma. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Kit Carson County4 S Burlington 07 1832MST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)COLORADO, South Central and SoutheastA line of thunderstorms moved southeast from Yuma and Kit Carson counties and crossed into western Kansas. A severe windgust was reported in Burlington and minor wind damage occurred along the Colorado-Kansas border in Kansas. Note: Themeasured wind gust of 56 knots is equivalent to 64 mph.Saguache County6 S Saguache 01 1352MST1357MST 0 0 0.00K 0.00K Hail (0.75)A strong thunderstorm produced hail up to the size of pennies.Prowers County1 S Holly 07 1745MST1750MST 0 0 0.00K 0.00K Hail (1.00)A severe storm produced hail up to the size of quarters and wind gusts around 55 mph.68

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012COLORADO, South Central and SoutheastCOZ079Wet Mountains between 8500 and 10000 Ft08310945MST2359MST 0 0 0.00K 0.00K WildfireA wildfire, started by lightning, has burned under 100 acres approximately 4 miles northwest of Beulah, in Custer County. Itcontinues to be a difficult fire to fight due to the steep terrain, and was still smoldering into the month of September.Saguache County5 SSW Mineral Hot Spgs 17 1440MST1445MST 0 0 0.00K 0.00K Hail (0.88)A strong storm produced hail up to the size of nickels.Kiowa County4 SE Sheridan Lake 23 1623MST1636MST 0.91 75 0 0 0.00K 0.00K Tornado (EF0)A landspout over farm fields caused no damage.A non-mesocyclone tornado occurred southeast of Sheridan Lake.Kiowa CountyHaswell 24 1535MST1540MST 0 0 0.00K 0.00K Hail (0.88)COLORADO, WestA strong storm produced hail up to the size of nickels.COZ001>014-017>023Animas River Basin - Central Colorado River Basin - Central Gunnison and Uncompahgre River Basin -Central Yampa River Basin - Debeque to Silt Corridor - Elkhead and Park Mountains - FlattopMountains - Four Corners/Upper Dolores River Basin - Gore and Elk Mountains/Central MountainValleys - Grand Valley - Grand and Battlement Mesas - Lower Yampa River Basin - Northwestern SanJuan Mountains - Paradox Valley/Lower Dolores River Basin - Roan and Tavaputs Plateaus - San JuanRiver Basin - Southwestern San Juan Mountains - Uncompahgre Plateau and Dallas Divide - UpperGunnison River Valley - Upper Yampa River Basin - West Elk and Sawatch Mountains01310000MST2359MST 0 0 0.00K 0.00K DroughtExtreme to severe drought conditions were held on place across western Colorado in August. Slight improvement was seenacross portions of the central and southern mountains mountains due to the impact of monsoonal moisture. However themajority of climate reporting stations received monthly precipitation totals well below normal, and most of these were at leastthree quarters of an inch below normal. The wildland fire danger remained high during August but the main impacts were feltin the agricultural sector due to crop and pasture land losses.CONNECTICUT, NortheastHartford CountyGranby 05 1545EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A tree was downed by thunderstorm winds blocking the road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hartford CountyEnfield 05 1555EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Pieces of aluminum siding was blown off two homes on Glen Arden Lane.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hartford County1 W Simsbury 05 1558EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A large tree was downed by thunderstorm winds blocking Route 167.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.69

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CONNECTICUT, NortheastHartford CountySouth Windsor 05 1610EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees and wires on Sullivan and Pierce Streets were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hartford County2 WNW New Britain 05 1643EST1743EST 0 0 0.00K 0.00K FloodMinor street flooding at the intersections of Corbin and Osgood Avenues and Biruta Street and Farmington Avenue.A cold front approaching from the west provided enough lift for showers and thunderstorms. As this front was approaching theatmosphere was sufficiently unstable across western Massachusetts, southwestern New Hampshire and western Connecticut forstorms to become severe. Most damage was the result of strong to damaging winds.Hartford County1 N East Glastonburg 10 1528EST 0 0 100.00K 0.00K Thunderstorm Wind (87EG)The National Weather Service in Taunton, MA conducted a storm survey of wind damage in eastern Glastonbury, determiningthat a microburst had occurred. The damage area extended from Homestead Drive, Paddock Lane and Wassuc Road to justnorth of Hebron Avenue. The Homestead Drive/Paddock Lane and Needletree Lane/Butler Drive areas experienced the mostconcentrated tree damage. In these two areas, numerous trees were either uprooted or snapped off near the tree base. In theButler Drive/Needletree Lane area, upwards of 30 to 40 trees were uprooted with three houses sustaining damage from fallingtrees. Wind speeds were estimated between 85 and 100 mph in this area. In the area of Homestead Drive/Paddock Lane, windspeeds were estimated between 75 and 90 mph. Outside of these two core areas, wind speeds were estimated between 55 and80 mph.There was also considerabel tree damage around a home on the south side of Weir Street near Roaring Brook.The tree damage tapered off near Hebron Avenue with only minor tree damage as far north as Mountain Road. While thegreatest width of the damage field was about one half mile, most of the damage was one quarter mile in width. The core of thestrongest winds was 100-200 yards wide.Note: The estimated wind gust of 87 knots is equivalent to 100 mph.Hartford CountyManchester 10 1555EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees and wires on Interstate 84, East Center and Pickens Streets were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tolland CountyCoventry 10 1555EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)A tree on Dunn Road was downed by thunderstorm winds, closing the road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tolland CountyVernon 10 1606EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Large branches on Vernon Circle and a tree on Route 30 were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tolland CountyRockville 10 1607EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Several large limbs on Union Street were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.70

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CONNECTICUT, NortheastTolland County1 W Stafford Spgs 10 1610EST1710EST 0 0 0.00K 0.00K FloodRoute 190 was closed due to flooding.Windham CountyWindham 10 1612EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees and wires on Washington Street were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tolland CountyVernon 10 1618EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees and wires on Chamberlain and Union Streets were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tolland CountyEllington 10 1625EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Tree limbs along 140 near the baseball fields were downed by thunderstorms.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hartford County1 N East Glastonburg 10 1644EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees and wires on Routes 2 and 83 were downed by thunderstorm winds.A series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes. These provideda focus for showers and thunderstorms to develop across southern New England. Southerly winds drew tropical moisture overthe area, resulting in very heavy rain in showers and thunderstorms that developed. In addition, strong winds in the upperlevels and 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.Tolland CountyMansfield 15 0530EST 0 1 0.00K 0.00K LightningA man was struck by lightning inside his house. He is expected to be alright.Showers and thunderstorms developed in a warm, moist atmosphere. Cold air aloft contributed to an unstable environmentresulting in severe thunderstorms. Moisture was such that rainfall rates were high enough to result in flash flooding.CONNECTICUT, SouthernNew Haven County1 S Westview HgtsNaugatuck01 1355EST1530EST 0 0 0.00K 0.00K Flash FloodIn Naugatuck, the underpass to the Salem Bridge at Rt. 63 was closed due to flooding. There was also at least six inches offlowing water on South Main St. In addition, apartment units on Prospect St., Trowbridge Pl., and Highland Ave. wereevacuated due to flooding.New Haven County2 SSW Bradley Ville1 S Naugatuck01 1430EST1530EST 0 0 0.00K 0.00K Flash FloodThere were numerous road closures and impassable roads throughout Naugatuck due to flooding.The combination of an upper level short wave and a surface trough triggered scattered showers and thunderstorms across thearea. Some thunderstorms produced very heavy rainfall that resulted in localized flash flooding in New Haven county.71

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CONNECTICUT, SouthernFairfield CountyGreenwich 05 1846EST 0 0 50.00K Thunderstorm Wind (70EG)Dozens of trees were reported down throughout the town of Greenwich, including several into homes. A combination of thedowned trees and associated power lines down closed all or parts of 62 roads in the town, including 2 southbound lanes of I-95between exits 2 and 3. One of the uprooted trees broke a gas line at the intersection of Shore Road and Nawthorne Road. Someof these trees fell across the tracks for the New Haven Line for Metro-North, resulting in the suspension of service along thisline in both directions between Stamford, CT and Harrison NY.A passing cold front and upper level disturbance triggered an isolated severe thunderstorm in Fairfield County. Note: Theestimated wind gust of 70 knots is equivalent to 81 mph.Middlesex CountyPortland 10 1406EST 0 0 3.00K Thunderstorm Wind (52EG)Trees and wires were reported down on State Route 17.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.New Haven CountyMadison 10 1425EST 0 0 Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.New Haven CountyGuilford 10 1435EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)New Haven County1 NNW Highwood1 NNW West ShrLarge branches were reported down on power lines.A passing warm front and upper level shortwave triggered isolated severe thunderstorms over New Haven and MiddlesexCounties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.10 1440EST1515EST 0 0 0.00K 0.00K Flash FloodSeveral railroad underpasses were closed in West Haven due to flooding. In Hamden, a vehicle was stuck in approximatelyeight inches of flowing water on Morse Street.A passing warm front and upper level short wave triggered scattered showers and thunderstorms in south central Connecticut.A tropical air mass in place across the region resulted in torrential downpours and flash flooding in New Haven and MiddlesexCounties.New Haven CountyGuilford 10 1445EST 0 0 10.00K Thunderstorm Wind (61EG)Several trees and numerous tree limbs were reported down throughout the town. This included one tree down on a house andthree large trees, over one foot in diameter, down onto power lines near U.S. Route 1.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Middlesex CountyHigganum 10 1506EST 0 0 3.00K Thunderstorm Wind (52EG)Trees were reported down across the town of Higganum.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Middlesex CountyEast Hampton 10 1514EST 0 0 5.00K Thunderstorm Wind (61EG)Multiple trees were reported down throughout town, including along State Route 66.Middlesex County2 WNW Lake Beseck1 WSW PortlandA passing warm front and upper level shortwave triggered isolated severe thunderstorms over New Haven and MiddlesexCounties. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.10 1515EST1530EST 0 0 0.00K 0.00K Flash FloodTorrential rain resulted in six inches of flowing water on Rt. 66 in Middletown.72

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012CONNECTICUT, SouthernA passing warm front and upper level short wave triggered scattered showers and thunderstorms in south central Connecticut.A tropical air mass in place across the region resulted in torrential downpours and flash flooding in New Haven and MiddlesexCounties.DELAWAREDEZ002>004Delaware Beaches - Inland Sussex - Kent01310000EST2359EST 0 0 0.00K 0.00K DroughtDrought conditions persisted in Kent and Sussex Counties during most of August. Relief arrived late in the month. It was toolate for the farmers. The United States Department of Agriculture Secretary Tom Vilsack issued a Disaster Designation forKent and Sussex Counties on August 10th. Farmers were eligible for emergency loans. The loans could be used for all or partof production costs, pay essential family living expenses, reorganizing farming operation, and or refinancing certain debtsincluding real estate. Mainly because of the last week of the month, August precipitation averaged nearly normal for the state,with the wettest conditions in Sussex County. Georgetown's monthly precipitation total of 6.30 inches was 2.77 inches aboveaverage.New Castle CountyBelvidere 03 1505EST 0 4 0.00K 0.00K LightningA family of four people were struck and injured by lightning outside of the Cranston Hall Apartments in Prices Corner(Christina Hundred). They were sitting under a tree when they were indirectly struck. The 30-year-old male, 28-year-oldfemale, 7-year-old boy and 1-year-old boy were transported to Christiana Hospital, where they were admitted and treated forminor injuries.New Castle CountyTownsend 03 1535EST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail fell in Townsend.New Castle County1 E Blackbird 03 1535EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a couple of large tree limbs and wires in Blackbird Hundred.A lee side trof and bay breezes helped trigger scattered strong to locally severe thunderstorms across the northern half ofDelaware during the afternoon of the 3rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.New Castle County2 NNW Walker 04 1323EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a few large tree limbs as well as wires across Deer Run Road in Blackbird Hundred.Widely scattered pulse type strong to severe thunderstorms affected mainly the northern half of Delaware during the afternoonof the 4th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sussex CountyLewes 09 1255EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in Lewes.The combination of a weak cold front and upper air disturbance triggered scattered strong to severe thunderstorms, whichproduced damaging winds and areas of heavy rain across portions of southern Delaware during the afternoon of the 9th. Thecombination of the lightning and damaging winds, caused about 11,000 homes and businesses in Kent and Sussex Counties tolose power. In Sussex County, most of the outages were in the eastern half of the county. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Sussex County1 SSE Blades 25 1539EST 0 0 25.00K 0.00K LightningA lightning strike and ensuing fire caused about $25,000 in damage to a home on Armiger Drive in the Hill-N-DaleDevelopment south of Blades.Sussex County3 ENE Georgetown Arpt 25 1701EST 0 0 10.00K 0.00K LightningA lightning strike and ensuing fire damaged a home on Hollis Road in Georgetown.73

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012DELAWARESussex County1 E Harbeson 25 1730EST 0 0 15.00K 0.00K LightningA lightning strike and ensuing fire damaged a home on Martins Farm Road in Milton.Lightning strikes from bands of thunderstorms and their ensuing fires caused damage to several homes in Sussex County duringthe evening of the 25th to just past Midnight EDT.Sussex County1 E Midway1 NNW Rehoboth Beach25 1830EST1930EST 0 0 100.00K 0.00K Flash FloodThunderstorms with torrential downpours caused roadway flash flooding in Rehoboth Beach. First Street was under two feet ofwater and at least one resort garage was flooded. Over two dozen vehicles were damaged. Event precipitation total was 7.21inches.A series of slow moving thunderstorms associated with a nearly stationary low pressure system in Eastern Virginia caused flashflooding in Sussex County that started overnight on the 25th and lasted into the 26th. Doppler Radar storm total estimatesreached around 8.5 inches.Sussex County1 NE Selbyville 25 2111EST 0 0 5.00K 0.00K LightningA lightning strike and ensuing fire damaged a home on Waterford Lane in Selbyville.Sussex County4 NNE Ocean View 25 2337EST 0 0 50.00K 0.00K LightningA lightning strike and ensuing fire caused extensive damage to a home on Inlet View Court in Bethany Beach. No injuries werereported.Lightning strikes from bands of thunderstorms and their ensuing fires caused damage to several homes in Sussex County duringthe evening of the 25th to just past Midnight EDT.Sussex County2 S NassauRehoboth Beach26 0000EST1100EST 0 0 500.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in Eastern Sussex County. The hardest hit area was in andaround Long Neck. Many roadways were flooded and closed. One road collapsed in Oak Orchard. In Oak Orchard, River Roadwas under water and the bulkhead of one home was damaged at the Riverwinds Development. Holly Lake Road was alsoclosed Flooding was also reported along Beaver Dam Road and Delaware State Ropute 5. Along the coast, Delaware StateRoute 1 in Dewey Beach and Delaware State Route 26 leading into Bethany Beach were flooded. Event precipitation totalsincluded 7.21 in Rehoboth Beach, 6.83 inches in Harbeson, 6.39 inches in Bethany Beach and 5.76 inches in Indian RiverInlet.A series of slow moving thunderstorms associated with a nearly stationary low pressure system in Eastern Virginia caused flashflooding in Sussex County that started overnight on the 25th and lasted into the 26th. Doppler Radar storm total estimatesreached around 8.5 inches.Sussex County1 NW Delmar 26 0032EST 0 0 300.00K 0.00K LightningA lightning strike and ensuing fire caused extensive damage to a home on Eagle Run Lane in Delmar. No injuries werereported.Lightning strikes from bands of thunderstorms and their ensuing fires caused damage to several homes in Sussex County duringthe evening of the 25th to just past Midnight EDT.Sussex County3 SW Midway 26 0330EST 0 0 5.00K 0.00K LightningA lightning strike and ensuing fire damaged a home in the Harts Landing section of Lewes.Sussex County2 ENE Oak Orchard 26 0340EST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)A severe thunderstorm caused wind damage in the Pot Nets Bayside Community in Long Neck. Three homes had rooftopdamage as the wind blew off shingles. Up to seven boats were also damaged and numerous trees were knocked down.74

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012DELAWAREFLORIDA, East CentralBands of thunderstorms continued to move through eastern Sussex County during the early morning of the 26th, one of whichcaused wind damage in the Long Neck area. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Seminole County1 N Sanlando Spgs 03 1340EST 0 0 0.00K 0.00K Hail (0.75)A spotter reported penny-sized hail near Longwood.Seminole County2 NE Forest City 03 1343EST 0 0 0.00K 0.00K Hail (0.88)A spotter reported nickel-sized hail near I-4 and SR 434.Seminole County1 NW Longwood 03 1350EST 0 0 0.00K 0.00K Hail (0.88)A spotter reported nickel-sized hail on Sandalwood Way in Longwood.Storms formed along the east coast sea breeze and subsequently produced several prominent outflow boundaries. Along one ofthe outflow boundaries, a particularly deep storm developed over Seminole County and produced up to nickel-sized hail.Okeechobee County3 NW Hilolo 07 1306EST 0 0 0.00K 0.00K Funnel CloudA fire department official, looking north from the Okeechobee County Correctional Institution, briefly observed a funnel cloud.An isolated storm developed along a convergence boundary in northeastern Okeechobee County, producing a brief funnelcloud.Volusia County8 ESE Oak Hill 08 1715EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)U.S. Air Force Wind Tower 22 at the Kennedy Space Center recorded a 59 mph wind gust as a thunderstorm occurred nearHaulover Canal.A line of storms developed along the west coast sea breeze and intensified as it interacted with the east coast sea breeze. One ofthe storms in this line became severe near Haulover Canal. Note: The measured wind gust of 51 knots is equivalent to 59 mph.Lake County2 NW Lady Lake 10 1455EST 0 0 0.00K Thunderstorm Wind (50EG)Severe thunderstorm winds partially peeled off the roof of a mobile home and scattered debris along Cindy Drive in TheVillages. Nearby, on Water Tower Circle, a large diameter tree was snapped about three feet above the ground.A thunderstorm along the Gulf Coast sea breeze boundary intensified rapidly over The Villages and became severe, producinglocally damaging winds. The winds damaged the roof of a mobile home and snapped a large tree nearby. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.Brevard County1 ESE West Eaugallie 12 1425EST 0 0 0.00K 0.00K Funnel CloudA SKYWARN spotter on Cheyenne Avenue in Melbourne observed a funnel cloud just southeast of their location. The funnelcloud did not touch down but was accompanied by strong wind gusts.A strong storm developed along the east coast sea breeze and ahead of the west coast sea breeze, producing a funnel cloud.Brevard County4 W Frontenac 16 1406EST 0 1 0.00K 0.00K LightningA local media outlet relayed a report of a woman being struck by lightning on Arborwood Avenue in Port St. John. She wastaken to a nearby hospital and reported to be in stable condition.75

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, East CentralBrevard County2 SSE Sharpes 16 1450EST 0 0 0.00K 0.00K Thunderstorm Wind (67MG)U.S. Air Force Wind Tower 1000 at the Kennedy Space Center measured a 67 kt/77 mph wind gust as a severe thunderstormoccurred.Note: The measured wind gust of 67 knots is equivalent to 77 mph.Brevard County1 NE Lake Poinsett 16 1510EST 0 0 0.00K 0.00K Hail (1.00)An off-duty weather observer from Cape Canaveral reported quarter sized hail on Highway 520 about a mile and a half west ofInterstate 95.A severe cluster of storms developed across central Brevard County due to numerous boundary and storm interactionsfollowing development of the east and west coast sea breezes. Severe winds and hail occurred, and a woman was injured afterbeing hit by a lightning strike.Brevard County4 S Bonaventure3 WSW (COF)Patrick Afb17 1317EST1330EST 0 0 0.00K 0.00K Funnel CloudMultiple observers spotted a funnel cloud as it developed west of US Highway 1 in Rockledge and continued east-northeastover the Indian River and south Merritt Island without touching down over land or water. Numerous photos, as well as a videodocumenting the entire event were provided to the NWS.An outflow boundary from pre-existing thunderstorms intersected a storm developing along the east coast sea breeze. Thiscaused enough turning in the lower atmosphere to produce a long-lived funnel cloud just north of the Pineda Causeway.A view of the funnel cloud looking south on US Highway 1 north of the Pineda Causeway. Photo courtesy of Janna Griffin.Brevard County1 N Indialantic 20 1720EST 0 0 0.00K 0.00K Funnel CloudA SKYWARN spotter observed a funnel cloud over Indialantic.A line of storms formed in eastern Brevard County along the east coast sea breeze, generating a funnel cloud over Indialantic.Brevard County4 WSW Titusville Beach 21 1359EST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)The NASA Shuttle Landing Facility at the Kennedy Space Center recorded a wind gust of 59 kts/68 mph during athunderstorm.Note: The measured wind gust of 59 knots is equivalent to 68 mph.76

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, East CentralBrevard County3 WNW Cape Canaveral 21 1405EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)U.S. Air Force Wind Tower 300 at the Kennedy Space Center measured a 54 kt/62 mph wind gust as a thunderstorm movedthrough.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Brevard County3 S Scottsmoor 21 1422EST 0 0 0.00K 0.00K Hail (0.75)A trained spotter observed penny sized hail north of Mims.Orange County1 N Plymouth 21 1430EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree weighing several thousand pounds was uprooted near Apopka as a storm on the leading edge of a larger lineintensified and became severe.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Okeechobee County3 N North Okeechobee 21 1536EST 0 0 4.00K 0.00K Thunderstorm Wind (55EG)Several wooden power poles to the northeast of Okeechobee, near 7200 U.S. Highway 441 North, were tilted by severethunderstorm winds, with the two poles experiencing broken cross members. While a funnel cloud was reported in the area (seeseparate event), the wind damage appeared to be due to straight line winds.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Okeechobee County3 N North Okeechobee 21 1540EST 0 0 0.00K 0.00K Funnel CloudOkeechobee County Fire/Rescue relayed a public report of a funnel cloud near Okeechobee.Brevard County5 SSE June Park 21 1550EST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)A citizen recorded a 55 kt/63 mph wind gust on their handheld instrument during a thunderstorm in Palm Bay.Note: The measured wind gust of 55 knots is equivalent to 63 mph.Brevard County1 SW Palm Bay 21 1554EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was knocked down into the road at the intersection of Troutman Blvd. and Port Malabar Blvd. southwest of PalmBay.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brevard County4 SE June Park 21 1600EST 0 0 0.00K 0.00K Thunderstorm Wind (68MG)Mesonet station AR717 near Malabar measured a 68 kt/78 mph wind gust as a severe thunderstorm moved overhead.Note: The measured wind gust of 68 knots is equivalent to 78 mph.Brevard County3 WNW Palm Bay 21 1600EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Windows were cracked and signs blown over in a muffler shop located at Babcock Street and Lake in the Woods Drive in PalmBay.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brevard County3 SSE June Park 21 1600EST 0 0 3.00K 0.00K Thunderstorm Wind (56MG)Debris during a 56 kt/64 mph wind gust hit and damaged the body of a police cruiser near Palm Bay.Note: The measured wind gust of 56 knots is equivalent to 64 mph.77

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, East CentralBrevard County3 SSW Melbourne 21 1600EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A home on Duke Street in Melbourne lost its roof as a thunderstorm moved by producing severe winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brevard County4 WSW Palm Bay 21 1601EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)The roofs of several carports were blown down at the Malabar Lakes Apartments.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brevard County1 NW (COF)Patrick Afb 21 1605EST 0 0 0.00K 0.00K Funnel CloudAn off-duty weather officer from Patrick Air Force Base observed a funnel cloud over the Pineda Causeway in Melbourne.Brevard County2 NNW Cocoa Beach 21 1630EST 0 0 1.25K 0.00K Thunderstorm Wind (50EG)Okeechobee County4 S Okeechobee14 NW BasingerA large plate glass window was blown in on Banana River Boulevard in Cocoa Beach as a severe thunderstorm moved through.A screen was also damaged.An upper-level trough crossed east-central Florida and increased instability. This combined with abundant moisture andboundary collisions produced severe storms and areas of damage across Brevard County, as well isolated wind damage nearApopka and Okeechobee. Several funnel clouds and small hail were also observed during the episode. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.27 0000EST1400EST 0 0 150.00K 0.00K FloodPersistent heavy rainbands from Tropical Storm Isaac produced widespread urban and lowland flooding across much of thecounty. Rainfall from the morning of August 26 until the evening of August 27 averaged 4 to 8 inches, with isolated totals of 10to 14 inches, most of which fell from early morning until mid day on August 27. The most significant impacts occurred withinthe City of Okeechobee and adjacent rural locations, including Taylor Creek. Fourteen homes experienced major damage andanother 146 had minor water intrusion (from either leaking roofs and/or high levels of standing water, mainly from overtoppinglocal creek/canals. Several roads were temporarily closed due to standing water.FLZ058Okeechobee27 0000EST1400EST 0 0 0.00K Tropical StormOsceola County2 SSE Narcoosee 27 0209EST0210EST 0.83 30 0 0 15.00K 0.00K Tornado (EF0)An EF-0 tornado, with winds estimated near 65 mph, touched down in rural St. Cloud and destroyed an old, abandoned mobilehome (floor attachment to the frame was severely rotted), then continued across a wooded lot and open, old citrus groves,causing minor-moderate shingle damage to a block home (house window was broken from debris impact), and minor shrub andfence damage within the yard of a neaby home. Insulation and small debris from the mobile home was carried downstreamthroughout the distance of the track. DI3 DOD6 Below LB; DI2 DOD1 EXP; DI27 DOD1 EXP.Indian River County2 SSE River BridgeWabasso27 0500EST1700EST 0 0 856.00K 0.00K FloodPersistent heavy rainbands from Tropical Storm Isaac produced widespread urban and lowland flooding across much of thecounty. Rainfall from the morning of August 26 until the evening of August 27 averaged 4 to 8 inches, with isolated totals of 14to 17 inches, most of which fell during the morning and afternoon of August 27. The most significant impacts occurred near thecoast from Winter Beach to Vero Beach and Florida Ridge. Twenty seven manufactured homes and two single family homeswere damaged by water intrusion and 20 roads were temporarily closed due to standing water during the height of the flooding.78

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, East CentralMartin County8 S Hobe Sound5 SSE Indiantown Crl T Arp27 0500EST1700EST 0 0 15.00K 0.00K FloodPersistent heavy rainbands from Tropical Storm Isaac produced widespread urban and lowland flooding across much of thecounty. Rainfall from the morning of August 26 until the evening of August 27 averaged 5 to 10 inches, with isolated totals of12 to 14 inches, most of which fell during the morning and afternoon of August 27. The most significant impacts occurred inand near Jensen Beach, Stuart, Palm City, and Port Salerno. Several roads became temporarily impassible due to standingwater. Water entered one complex in Palm City, comprised of multiple businesses.St. Lucie County11 WSW Port St Lucie 27 0500EST1700EST 0 0 20.00K 0.00K FloodPersistent heavy rainbands from Tropical Storm Isaac produced widespread urban and lowland flooding across much of thecounty. Rainfall from the morning of August 26 until the evening of August 27 averaged 5 to 10 inches, with isolated totals of12 to 14 inches, most of which fell during the morning and afternoon of August 27. The most significant impacts occurred nearthe coast, from Lakewood Park to Fort Pierce, White City, and Port St. Lucie. Numerous roads were temporarily closed due tostanding water.FLZ054-059-064Indian River - Martin - St. Lucie27 0500EST1700EST 0 0 0.00K Tropical StormOsceola County8 WSW Yeehaw Jct 27 0600EST1800EST 0 0 10.00K 0.00K FloodPersistent heavy rainbands from Tropical Storm Isaac produced areas of urban and lowland flooding across portions of thecounty. Rainfall from the morning of August 26 until the evening of August 27 averaged 3 to 6 inches, with isolated highertotals, most of which fell during the morning and afternoon of August 27. The most significant impacts occurred in St. Cloudand rural locations farther south and east. Several roads were temporarily closed due to standing water.FLZ053Osceola27 0600EST1800EST 0 0 0.00K Tropical StormIndian River County2 E Vero Beach Airpark 27 1103EST1105EST 1.61 180 0 0 500.00K 0.00K Tornado (EF0)An EF0 tornado touched down just southeast of Indian River County Fire Station number 7 on 12th Street in Vero Beach. Adiscontinuous path of damage stretched 1.6 miles through the Vero Beach Estates and Countryside Village Mobile Home Parks,crossed State Road 60, and lifted just north of the Paradise Park residential area. A total of 95 structures (mostly mobile homes)were damaged, with 62 receiving minor damage and 33 sustaining major damage due to wind and rain. There were severalshort locations along the path were damage was minimal or non-evident. DI2 DOD4 LB; DI3 DOD4 LB-EXP, DI4 DOD7 LB.Tropical Storm Isaac passed southwest of east-central Florida, making its closest approach during the late afternoon andevening hours of August 26. Two tornadoes developed during the morning of August 27 and several tropical storm force windgusts were observed. County-averaged rainfall amounts over the 2-day period were as high as 10-12 inches within Okeechobee,Martin, St. Lucie and Indian River Counties, with isolated totals of 14-17 inches. A majority of the heavy rain fell from earlymorning through late afternoon of August 27, when flooding resulted in numerous, temporary road closures. Water enteredmany homes in Okeechobee and Indian River Counties due to over-topping of local creeks/canals and overwhelming ofdrainage systems.Brevard County2 NW Bonaventure 28 1415EST 0 0 0.00K 0.00K Funnel CloudA SKYWARN spotter observed a funnel cloud just southwest of Merritt Island and southeast of Rockledge. The funnel wasobserved to be moving north, inland of US Highway 1.79

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, East CentralBrevard County4 NE Titusville 28 1444EST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)FLORIDA, Extreme SouthernU.S. Air Force Wind Tower 714 at the Kennedy Space Center recorded a wind gust of 57 kts/66 mph during a severethunderstorm.A severe thunderstorm developed in the residual moist and unstable airmass in the wake of Tropical Storm Isaac, producingboth severe winds and a funnel cloud in central to northern Brevard County. Note: The measured wind gust of 57 knots isequivalent to 66 mph.FLZ076>078FLZ078Monroe/Lower Keys - Monroe/Middle Keys - Monroe/Upper Keys25270400EST 0 0 2.17M 0.00K Tropical StormMonroe/Lower Keys27 0530EST0730EST 0 0 0.00K 0.00K Coastal FloodTropical Storm Isaac moved from near western Haiti and the eastern tip of Cuba late on August 24, 2012, through the FloridaStraits, and into the southeast Gulf of Mexico through August 27. The center passed within 40 nautical miles to the southsouthwest of Key West during the late afternoon hours of Sunday, August 26.FLORIDA, NortheasternSt. Johns County2 WSW Orangedale 02 1633EST 0 0 Thunderstorm Wind (50EG)Power lines were damaged along State Road 13 by thunderstorm wind gusts. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Johns County1 SW Fruit Cove 02 1656EST 0 0 Thunderstorm Wind (50EG)Power lines were damaged along State Road 13 near Colee Cove. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clay County1 WSW Doctors Lake 02 1858EST1943EST 0 0 Heavy RainAn observer measured 2.39 inches of rainfall in 45 minutes. Minor flooding was also reported.St. Johns County2 NW Crescent Beach 02 1920EST 0 0 Thunderstorm Wind (50EG)Power lines were damaged which caused power outages near Butler Beach. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Flagler County2 NW Mantanzas 02 1925EST 0 0 Thunderstorm Wind (50EG)Power lines were damaged with widespread power outages near northern Palm Coast.Duval County3 S Isle Of Palms South1 SSW Jacksonville BeachA mid level trough was over coastal SE Ga and extended over NE Florida. This feature combined with prevailing WSWsteering flow and a dominant west coast sea breeze sparked scattered severe storms over the area. The airmass was veryunstable with moderate moisture with precipitable water around 1.8 inches. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.05 0630EST 0 0 0.00K 0.00K Flood80

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternAt 7:30 am, the NWS employee reported flooding near Marsh Hammock Drive East. At 8:49 am, significant flooding wasreported in areas near 10th Avenue South and 8th Avenue in Jacksonville Beach. The water depth was 1 to 1.5 ft deep. SouthBeach Parkway was flooded an impassable. At 8:55 am, there was significant flooding near 3rd Street and 14th Avenue inJacksonville Beach. There area was barely passable. There was also significant flooding near 3rd St and 6th Avenue North. Theright lane was closed. At 9:30 am, there was significant flooding in areas near 3rd St and 18th Avenue North. Water wasentering structures, including the Five Guys restaurant and Good Year Tire Company.A lingering surface front over north Florida and a surge of tropical moisture from the east combined to produce widespreadareal flooding over coastal Duval during the morning from Ft. Caroline to Jacksonville Beach.Duval County2 NE Cedar Hills 07 1355EST 0 0 10.00K 0.00K LightningLightning caused a structure fire along the 3600 block of Richmond Street in the Avondale area of Jacksonville. The structurewas 2 stories. The extent of damage was unknown, and the cost of damage was estimated.Scattered storms developed over an unstable airmass along the sea breezes.Duval County1 SW Cedar Hills 08 1140EST1200EST 0 0 Heavy RainRainfall amounts within 20 minutes were 0.50 inches to 0.74 inches.Duval County1 SE Dinsmore 08 1200EST 0 2 0.00K 0.00K LightningTwo men working in a bucket truck were struck by lightning at the 8800 block of Moncrief Dinsmore Road around 1 pm. Oneman was in the truck at the time. Both men were taken to the hospital.Duval County1 N Wesconnett 08 1245EST1300EST 0 0 Heavy RainOne inch of rainfall fell in 20 minutes.A mid level short wave trough moved over the forecast area during the day. This feature combined with a dominant west coastsea breeze over a moist and unstable airmass fueled scattered strong storms with locally heavy rainfall.Putnam County1 N Peniel 09 1500EST 0 0 Heavy RainA retention pond overflowed onto State Highway 20 about 2 miles west of State Road 19.Putnam County1 S Peniel 09 1500EST 0 0 Thunderstorm Wind (50EG)Power lines were blown down on Paniel Road.A mid level short wave trough moved over the area during the afternoon from the west. This featured combined with prevailingWSW flow and high moisture produced scattered severe storms along the sea breezes and resultant outflow boundaries. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Flagler County1 S Flagler Beach 15 1655EST 0 0 Thunderstorm Wind (56MG)A spotter measured a 64 mph wind gust with an anemometer that was at a 30 ft elevation. The time of the gust was based onradar data.Note: The measured wind gust of 56 knots is equivalent to 64 mph.Flagler County1 W Flagler Beach 15 1658EST 0 0 Thunderstorm Wind (50EG)Power lines were blown down along Moody Blvd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.81

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternFlagler County1 NE Beverly Beach 15 1700EST 0 0 Thunderstorm Wind (50EG)A power line was blown down at Ocean Marina Drive and A1A.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Flagler County3 ESE Lake Disston 15 1720EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)Trees were blown down on State Road 11. The time of the event was based on radar data. The cost of debris removal wasestimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Flagler County2 SE Bunnell 15 1722EST 0 0 5.00K 0.00K Thunderstorm Wind (45EG)A tree fell on a vehicle south of Bunnell due to strong thunderstorm winds. The cost of damage was unknown but estimated forinclusion of the event in Storm Data.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Flagler CountyCodys Corner 15 1756EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)A tree was blown down across State Road 11 about 2 miles north of the Volusia County Line. The cost of debris removal wasestimated.A short wave trough moved over the area from the Florida Panhandle area during the afternoon. Upper level temperaturesaround -7 to -8 degrees Celcius and precipitable water values just under 2 inches provided enough instability and moisture forscattered severe storms to develop and persist along the sea breezes and outflows during the afternoon and evening as the uppertrough passed over the area aloft. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Marion County1 ESE Dallas 16 1250EST 0 0 Thunderstorm Wind (50EG)The County Road Department reported a tree blown down on SE 58th Avenue between Highway 42 and SE 177th Place.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Flagler County1 NW Bunnell 16 1510EST 0 0 2.00K 0.00K LightningA lightning strike damaged power lines near U.S. Highway 1 and County Road 13 in Bunnell. The cost of damage wasestimated.Mean troughing to the west and northwest continued a moist and unstable flow over the area. The west coast sea breezeadvanced inland and merged with the east coast sea breeze near the east coast during the late afternoon and evening. Isolatedstrong to severe storms developed.Duval County1 N Hogan 17 1245EST 0 0 15.00K 0.00K Thunderstorm Wind (45EG)A large tree fell and smashed a car and damaged a home in the Grove Park neighborhood. The tree was partially rotted. Thetime of the damage was estimated and based on the peak wind gust times at NAS Jacksonville and Craig Airfield. The cost ofdamage was estimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Duval County2 NNW Bowden 17 1300EST 0 0 10.00K 0.00K LightningA structure fire was caused at the 2900 block of Iseer Court in Mandarin. The cost of damage was estimated.Mean troughing to the west and northwest continued a moist and unstable flow over the area. The west coast sea breezeadvanced inland and merged with the east coast sea breeze near the east coast during the late afternoon and evening. Isolatedstrong storms developed.Flagler CountyBunnell 19 1402EST 0 0 0.10K 0.00K LightningLightning struck an antenna on the Flagler County Emergency Operations Center. The antenna was obliterated, but no otherdamage occurred to the building due to the lightning protection system. The cost of damage was estimated.82

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternMean layer troughing prevailed over the area. The sea breezes and outflows merged over a moist and unstable airmass toproduce scattered strong storms.Columbia County5 NNE Ft White 20 1140EST 0 0 Thunderstorm Wind (50EG)Trees were blown down in Fort White. One damaged a home. The time of the event was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clay County1 E Penney Farms 20 1330EST 0 0 Hail (0.88)The Green Cove Springs Post Office observed nickel size hail near State Road 16 and County Road 218.St. Johns County3 SSW Sampson Church 20 1330EST 0 0 2.00K 0.00K LightningA lightning strike hit a home on Tortuga Bay Drive which caused a structure fire. The time of the incident was based onlightning data. The cost of damage was estimated.St. Johns CountyVilano Beach 20 1350EST 0 0 Thunderstorm Wind (50EG)Trees were blown down along Sherwood Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Duval County3 S Wesconnett 20 1445EST1630EST 0 0 500.00K 0.00K FloodWidespread areal flooding occurred across downtown Jacksonville from the Westside of town to Mandarin, and northward toArlington and the Northside. At 3:45 pm, Duval County Emergency Management reported cars were stranded due to floodedroads throughout the San Marco area. At 3:55 pm, law enforcement reported the Powers Road from Toledo Road to UniversityBlvd was closed due to flooding. At 4 pm, emergency management reported flooding along Blanding Blvd near Interstate 295in Argyle. At 4 pm, emergency management also stated a roof collapsed at an apartment complex along San Jose Blvd due toheavy rainfall. At 4:06 pm, the media reported a car was trapped by flood waters in Argyle. At 4:18 pm, the media reported ahome was flooded in Ortega with water rescues by fire officials. At 4:18 pm, emergency management reported water wasentering a home in Englewood. The car of the homeowner was flooded and there was widespread street flooding in the area. At4:26 pm, a spotter reported a drainage ditch overflowed and caused flooding on Harlow Blvd. The spotter also measured 3.2inches of storm total rainfall. At 4:53 pm, emergency management reported a vehicle stuck in flood waters in San Marco. At5:01 pm, emergency management reported a sinkhole behind an apartment complex near Naval Air Station Jacksonville. At5:11 pm, emergency management reported water entered a home near Bowden Road close to University Blvd. At 5:12 pm,emergency management reported water entered a home in San Marco. AT 5:12 pm, emergency management reported streetflooding over Sabena Road near University Blvd. At 5:15 pm, the media reported significant inundation due to flooding at theintersection of McCoys Creek Blvd and Stockton Street in downtown Jacksonville. At 5:15 pm, the media reported inundationdue to flood waters near the intersection of Roosevelt Blvd and South Edgewood Ave in the Avondale area of downtownJacksonville. At 5:16 pm, emergency management reported flooded streets in southside Jacksonville between Atlantic Blvd andBeach Blvd near University Blvd South. At 5:18 pm, emergency management reported a vehicle stuck in flood waters in thesouthbound lane of the approach to the Buckman Bridge. At 5:25 pm, emergency management reported that north Main Streetand Zoo Parkway were closed due to flooding and the concrete cracking underneath an overpass and shifting. At 5:27 pm,emergency management reported a sinkhole on University Blvd North and Arlington Road. At 5:30 pm, emergencymanagement reported a vehicle stuck in flood waters in the San Jose area of Jacksonville. The cost of damage was estimated,and it is likely grossly underestimated.Flagler County2 NNE Beverly Beach 20 1515EST 0 0 1.00K 0.00K LightningPower lines were down across A1A due to a lightning strike. The cost of repair was estimated.83

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternDuval County5 NW Ft George Is 20 1553EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)A tree was blown down over the road in Cedar Point. The cost of debris removal was estimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Clay County1 S Bellair 20 2255EST 0 0 Heavy RainA storm total amount of 3.17 inches was measured.Clay County1 ESE Meadowbrook 20 2255EST 0 0 Heavy RainThe public measured 2.93 inches of storm total rainfall.Duval County1 ESE Venetia 20 2255EST 0 0 Heavy RainNaval Air Station Jacksonville measured a 12 hour rainfall of 3.84 inches. The one hour total of 3.45 inches occurred between 3and 4 pm.Duval County(CRG)Craig Fld Jacks 20 2255EST 0 0 Heavy RainCraig Airport measured a 12 hour rainfall of 2.68 inches. One hour rainfall accumulation was 2.43 inches between 3 pm and 4pm.Duval County1 N Yukon 20 2255EST 0 0 Heavy RainThe public measured 4.86 inches of rainfall.Mean layer troughing positioned over SE Georgia as upper level divergence increased within the right rear quadrant of theupper level jet stream. Lingering outflow boundaries and active sea breezes in concert with a very moist and unstable airmasscombined with the dynamical convective triggers to support widespread flooding and isolated severe storms during theafternoon and evening.Alachua County1 SE Orange Hgts 21 1145EST 0 0 Thunderstorm Wind (50EG)A tree was blown down and blocking State Road 26. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marion County1 W Reddick 21 1207EST 0 0 Heavy RainA spotter reported street flooding on Highway 316 between Reddick and Fairfield.Putnam County2 NNE Interlachen 21 1210EST 0 0 Thunderstorm Wind (50EG)Trees were reported down on County Road 315 near Interlachen.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam CountyFlorahome 21 1210EST 0 0 Thunderstorm Wind (50EG)Trees were blown down and blocking the west bound lane of State Road 100 near South Ivy Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.84

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternAlachua County1 SW Rocky Pt3 WNW Archer Flying Ten Ar21 1227EST1233EST 0 0 2.00K 0.00K FloodThe 3000 block of SW 202 Street in Newberry was flooded out and impassable. There was also flooding along U.S. Highway441 near Paynes Prairie with one northbound lane closed. The cost of damage was estimated.Putnam CountyWelaka 21 1310EST 0 0 Thunderstorm Wind (50EG)Trees were blown down at the intersection of County Road 308 and County Road 309.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Johns County1 NE St Augustine 21 1345EST 0 0 1.00K 0.00K FloodFlooding along Cordova Street was 6 to 14 inches and water was up to the doors of many business. The cost of damage wasestimated.A mid and upper level trough over the central Gulf Coast states brought moderate mid and upper level southwest flow over SEGa and NE Florida. A surface low developed over the eastern Gulf of Mexico, and tracked inland and northward along alingering surface front. These features brought scattered severe storms over the area during the afternoon and evening.Marion County2 SSW Summerfield 23 1145EST 0 0 Thunderstorm Wind (50EG)Trees were blown down across U.S. Highway 301 near Summerfield. The time of damage was based on radar data.Upper level southwest flow prevailed with mid and upper level troughing over the eastern Gulf of Mexico. A surface frontlingered near the southeast Ga and NE Florida state line. A moist and unstable airmass prevailed, and provided fuel forscattered strong to isolated severe storms. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Flagler CountyBunnellPalm Coast27280735EST2359EST 0 0 Heavy RainStorm total rainfall amounts across Flagler County were gathered over a 3 day period from Aug. 26th through August 28th.Palm Coast communities measured 2 to 3.25 inches of rainfall with wind gusts of 40 mph. Some minor flooding occurred inparking lots. Farther south near I-95 in the southern part of the county rainfall amounts were near 2.25 inches and a tree wasblown down on Seaman Path. Flagler Beach measured 1.5 inches. Bunnell measured 2.49 inches. A few trees were blown downin the western part of the county, one over Walnut and Forest Park near Daytona North. Another tree was down on Shell BluffRoad.Tropical Storm Isaac tracked WNW over the Florida Straits and over the southeast and east-central Gulf of Mexico. Fringeaffects on the storm's NE side were experienced over Flagler county where periods of heavy rainfall occurred in squalls. Gustywinds of 40 to 50 mph were also reported in squalls which felled isolated trees across northeast Florida. A few trees wereblown down on the 26th, one in Alachua county around 10 pm across south Main Street in Gainesville. A few other were blowndown across Flagler County on the 26th and 27th. No major damage was reported associated with fringe affects from T.S.Isaac.Putnam County2 NNW Johnson 28 1438EST 0 0 Thunderstorm Wind (50EG)A large tree was blown down across the intersection of State Road 20 and Victoria Road between Interlachen and Hawthorne.The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam County2 NNW Mannville 28 1500EST 0 0 Thunderstorm Wind (50EG)Trees were blown down in Interlachen. One was down near Cordell Avenue near Medlock Street in Interlachen Lakes Estates.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.85

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternPutnam CountyFlorahome 28 1500EST 0 0 Thunderstorm Wind (50EG)Trees and power lines were blown down in Florahome. Some were down along East Kansas Street near South PalmettoAvenue. More were down in the 200 block of West Illinois St near North Cedar Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam County4 W Kenwood 28 1500EST 0 0 Thunderstorm Wind (50EG)Power lines were blown down at Orange Springs Cutoff Road and South County Road 21 in West Putnam.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam County2 WNW Edgar 28 1500EST 0 0 Thunderstorm Wind (50EG)A tree was blown down and blocking the entrance to Lake Mildred Road and Morris Lake Drive in West Putnam.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam County3 W Rodman 28 1500EST 0 0 Thunderstorm Wind (50EG)Trees were down near Simpson Court and Simpson Drive in Interlachen.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Putnam County1 ENE Interlachen 28 1506EST 0 0 Thunderstorm Wind (50EG)Trees were blown down and blocking the road on Lake Susan Road near Star Lake Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Johns County1 N College Park 28 1510EST 0 0 Thunderstorm Wind (50EG)The county 911 center reported power lines were blown down on Butler Avenue west of St. Augustine.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Johns County2 NW Bakersville 28 1515EST 0 0 Thunderstorm Wind (50EG)Power lines were blown down on Church Road northwest of St. Augustine per the county 911 center.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Duval County1 E (NRB)Nas Mayport 28 1600EST 0 0 5.00K 0.00K LightningLightning struck a home at NAS Mayport. The extent of damage was not known, and the cost of damage was estimated. Therewere no injuries reported.Duval County1 W East Mandarin 28 1600EST 0 0 Thunderstorm Wind (50EG)Trees were blown down in Mandarin, as well as a few on the Westside of Jacksonville. Exact locations were not relayed by theCounty 911 Center. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Duval County2 SSW Greenfield 28 1610EST 0 0 0.10K 0.00K LightningLighting struck a tree in Queens Harbor. A fire started, but rainfall extinguished the fire. The cost of minor property damagewas estimated.86

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NortheasternDry air was over inland northeast Florida which wrapped around the south and southeast side of Isaac which was over the northcentral Gulf of Mexico. High moisture and instability continued over coastal northeast Florida and the St. Johns River basinwhere a few severe storms developed during the afternoon during maximum heating.FLORIDA, NorthwestGulf County4 N White City 02 1114CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The Gulf county 911 call center reported that a couple of trees were blown down north of White City. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walton CountyDe Funiak Springs 02 1408CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down within the city limits of De Funiak Springs. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walton CountyFreeport 02 1436CST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)A single power line was blown down within the city limits with no other damage reported in the area. Monetary damage wasestimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Holmes CountyNew Hope 02 1445CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)The Holmes county 911 call center reported multiple power lines blown down on Highway 2 to the east of Highway 81.Monetary damage was estimated.A subtle upper level shortwave affected the area from north to south during the day. The airmass was unstable with SBCAPEvalues in the 2500-3000 j/kg range during the afternoon hours with high delta thetae values. This provided a favorableenvironment for strong to severe thunderstorms with damaging wind being the main threat. Note: The estimated wind gust of50 knots is equivalent to 58 mph.Leon County1 NNW Tallahassee Mall 05 1920EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 3.35 inches was measured by the Northwest Florida Water Management District rain gauge located atthe Lake Jackson holding pond.Leon County2 S Lake Jackson 05 2015EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 5.64 inches was measured by the Northwest Florida Water Management District rain gauge located atAbundant Life Fellowship.Leon County2 SW Killearn Estates 05 2015EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 3.44 inches was measured by the Northwest Florida Water Management District rain gauge located atWembley Way-Eastgate.Leon County1 ESE Levy Park 05 2015EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 3.51 inches was measured by the Northwest Florida Water Management District rain gauge located atthe Senior Center.Leon County1 N Lake Jackson 05 2015EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 4.33 inches was measured by the Northwest Florida Water Management District rain gauge located atLake Jackson-Miller Landing.87

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NorthwestLeon County3 NE Orchard Pond 05 2015EST 0 0 0.00K 0.00K Heavy Rain06A 24 hour rainfall total of 3.04 inches was measured by the Northwest Florida Water Management District rain gauge located atthe Lake Iamonia outfall on N. Meridian Road.Bay County1 N Gulf Lagoon Beach 06 0340CST1502CST 0 0 0.00K 0.00K Heavy RainAn Oregon Scientific rain gauge located at Treasure Palms with wunderground site identifier KFLPANAM7 measured arainfall total of 3.29 inches.Jackson County(MAI)Marianna Municipal Arp 06 0400CST 0 0 0.00K 0.00K Heavy RainThe ASOS at the Marianna airport measured 4.60 inches of rain in a 12 hour period. Most of that rain fell in a 5 hour periodbetween 6 am CDT and 11 am CDT.Bay County2 SE St Andrews State Park 06 1058CST 2 0 LightningWJHG-TV reported that two people were struck by lightning on Shell Island near Panama City. A 42 year old father wascarrying his 14 year old stepson when the strike occurred. The father was killed on the spot, and the teen later died at aPensacola hospital. M42OU, M14OULeon County2 NE Tallahassee CommCollege06 1550ESTFlorida State University (fsu)1650EST 0 0 0.00K 0.00K Heavy RainThe Northwest Florida Water Management District rain gauge located at San Luis Mission Park reported 2.00 inches of rain in1 hour. Some minor street flooding occurred on Pensacola Street around the same time.Thunderstorms associated with a westward moving tropical wave developed during the day. Two people on Shell Island werestruck by lightning, resulting in one death and one injury. There was also some minor street flooding around Tallahassee due toheavy rain.Holmes County1 NW Smith Crossroads 07 0700CST0830CST 0 0 0.00K 0.00K Flash FloodFlash flooding occurred along the Alabama/Florida border. County Road 53 along the Florida/Alabama border was floodedand closed on the Alabama side of the border.Walton County1 WNW Freeport 07 1110CST1210CST 0 0 0.00K 0.00K Heavy RainLeon CountyGovernors Square Mall2 WNW FallschaseA few inches of water were reported over Highway 331 between Highway 20 and the bridge in low spots or dips in the road.Motorists driving normal speeds were hydroplaning. Radar estimated approximately 2.50 inches of rain had fallen in the areaover the past few hours.07 1225EST 0 0 0.00K 0.00K Heavy RainWCTV reported minor urban flooding near the intersections of Apalachee Pkwy and Blairstone Rd as well as Mahan Dr andWeems Rd.A weak tropical wave stalled over portion of southeast Alabama, and convection flared up during the early morning hours ofAugust 7th. Very heavy rainfall amounts led to flash flooding across the Alabama/Florida border in far northern Holmescounty.Jefferson County4 W Lois 10 0822EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down west of Lois. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.88

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NorthwestJefferson County4 W Lois 10 0822EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The Jefferson county 911 call center reported a tree down on Highway 90 just south of Lake Miccosukee. Monetary damagewas estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jefferson County5 NNW Aucilla 10 0836EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Bassett Road. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jefferson County3 WNW Aucilla 10 0836EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Aucilla Road. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jefferson County2 SSE Ashville 10 0855EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on Bailey Road. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jefferson County1 NNW Ashville 10 0856EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down blocking lanes of traffic on Highway 221 just south of the Georgia border. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bay CountySpringfield 10 1444CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)WMBB reported a large tree down in Springfield, approximately 20 inches in diameter. The tree also caused power lines tocome down. Monetary damage was estimated.A small but fairly potent bow echo moved across portions of northwest Florida during the morning hours of August 10th andblew down several trees. It is fairly unusual to see bow echoes moving through this part of the country in the middle of summerduring the morning hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walton County2 WNW Inlet Beach 11 0430CST 0 0 1.60M 0.00K LightningThe South Walton Fire District (SWFD) received a call at 9:00 a.m. CDT reporting a structure fire at 145 Paradise By the SeaBlvd in the Inlet Beach area. Reports from the neighbors indicated that there was an early morning thunderstorm with severelightning. Sometime close to 5:30 a.m. CDT neighbors stated they witnessed lightning strike near this residence. It wasn't until3.5 hours later that smoke and flames were reported coming from this 3 story, (est.) 12,000 sq. ft. beach front home. Withinminutes of receiving the initial 9-1-1 call, SWFD units arrived on scene and found fire coming from the third floor roof area.Prior to arrival, it was determined that fire had spread throughout the sub-floors making extinguishment difficult. Despite that,SWFD crews were able to minimize the fire damage and bring the scene under control within an hour of the initial call. Theresidence was valued at an estimated $9.6 million dollars with damage to the structure and contents estimated at $1.6 milliondollars. The owners were not home at the time of the fire and there were no injuries to report. The fire was investigated by theSWFD Fire Marshal and the Florida State Fire Marshalâs Office.Early morning thunderstorms caused major lightning damage to a beach front home in the Inlet Beach area.Walton CountyInlet Beach 15 0630CST 0 0 10.00K 0.00K LightningLightning caused a fire to a home in Inlet Beach. The fire remained confined to the attic but resulted in significant damage.Monetary damage was estimated.Lightning caught a home on fire in Inlet Beach.89

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NorthwestBay CountySouthport 19200000CST1535CST 0 0 0.00K 0.00K Heavy RainThe media relayed a report from a viewer of 6 inches of rainfall in Southport since August 19th.Taylor County1 SE Perry 19 1300EST 0 0 0.00K 0.00K Heavy Rain20The Perry co-op observer reported a 24 hour rainfall total of 3.32 inches ending at 2 pm EDT.Wakulla County2 WSW Panacea Park 19 1546EST 0 0 0.00K 0.00K Heavy Rain20A 24 hour rainfall total of 3.02 inches was recorded at RAWS site PRWF1.Franklin County7 SSE Apalachicola 19 1723EST 0 0 0.00K 0.00K Heavy Rain20A 24 hour rainfall total of 3.79 inches was recorded by APRSWXNET site C8103 located on Saint George Island.Jefferson CountyWaukeenah 20 0900EST2152EST 0 0 0.00K 0.00K Heavy RainThe broadcast media relayed a viewer report of 3.75 inches of rain in Waukeenah.Taylor County10 WSW Perry 20 0900EST2144EST 0 0 0.00K 0.00K Heavy RainThe broadcast media relayed a viewer report of 4 inches of rain about 10 miles WSW of Perry.Wakulla CountyPanacea 20 0900EST1728EST 0 0 0.00K 0.00K Heavy RainThe broadcast media relayed a viewer report of 3.62 inches of rain since 10 am in Panacea.A tropical airmass and a weak disturbance combined to produce heavy rainfall across portions of northwest Florida.FLZ112-114-127Coastal Bay - Coastal Franklin - Coastal Gulf - Coastal Wakulla28 0700EST0900EST 0 0 500.0K Storm Surge/TideJackson County(MAI)Marianna Municipal Apt 29 1600CST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was spotted near the Marianna airport.Jackson County1 SW Greenwood 29 1612CST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was spotted just south of Greenwood moving north along Highway 71.90

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, NorthwestJackson County1 NE Greenwood 29 1612CST1614CST 0.37 25 0 0 0.00K 0.00K Tornado (EF0)The broadcast media obtained video of a well developed and persistent funnel cloud with a brief tornado touchdown in an openarea north of Greenwood and south of Dozier Road. No damage occurred.Jackson CountyGraceville 29 1614CST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was spotted near Graceville.Holmes County2 ENE Cobb Crossroads 29 1624CST1625CST 0.27 25 0 0 10.00K 0.00K Tornado (EF0)An EF0 tornado touched down in extreme northeast Holmes county along Kirkland Road. Trees were blown down anduprooted, and the front porch was torn from a mobile home with some debris noted in the trees. Monetary damage wasestimated.Bay County2 SSW Southport 30 0515CST 0 0 0.00K 0.00K Funnel CloudThe public sighted a funnel cloud at Baily Bay Bridge on Highway 77 near Marina Bay Dr.For the most part, Hurricane Isaac missed the eastern Panhandle and Big Bend of Florida. However, the outer remnants ofHurricane Isaac spawned a couple of funnel clouds and tornadoes, and some coastal flooding did occur across portions ofWakulla, Franklin, Gulf, and Bay counties in association with the storm surge.Significant erosion occurred across Franklin county with estimates of around $500K in damage from erosion from a WCTVnews article. The storm surge was measured at 3.45 feet at Apalachicola at 1200 UTC on the 28th with a total storm tide of3.92 inches. The storm surge was measured at 2.50 feet at Panama City at 1400 UTC on the 28th with a total storm tide of 3.50feet. Also in Franklin county, Water Street in Apalachicola flood with over one foot of water in some places. Some floodingoccurred in Saint George Island State Park with water passing the dune line and flooding parking areas. Surf heights were inexcess of 6 to 8 feet.In Wakulla county, minor coastal flooding was reported in typical flood prone areas around Saint Marks. Two to four inches ofwater was reported inside a few businesses in Saint Marks. One vacant home experienced minor water intrusion around thetime of highest tide in Shell Point.In Gulf county, Indian Pass Road flooded around the time of high tide. Saint Joseph State Park was closed due to waterinundating the access road.In Bay County, there was minor inundation of a few roads in downtown Panama City near 7th Avenue. Water depth rangedbetween a few inches to one foot in places. Flooding of roads was also reported in areas of Lynn Haven closer to West Bay.Very high surf resulted in moderate beach erosion with surf heights in excess of 8 to 10 feet.FLORIDA, SouthernBroward County7 SW Coral Spgs 01 1615EST 0 0 0.00K 0.00K Funnel CloudLaw enforcement reported a funnel cloud 3 miles west of Tamarac west of the Sawgrass Expressway along W. McNab Road.Palm Beach County3 W Boynton Beach 01 1650EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter reported trees downed with estimated wind gusts of 60 mph near Interstate 95.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.91

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, SouthernPalm Beach County1 SSW Delray Beach 01 1720EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported strong winds downed a large tree on an automobile.A weak upper level trough of low pressure over the eastern U.S. along with a Tropical Wave over the central Caribbean Searesulted in scattered thunderstorms during the afternoon across portions of South Florida. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Palm Beach County10 W Tequesta 02 1550EST 0 0 0.00K 0.00K Hail (0.75)A trained spotter reported penny sized hail.Palm Beach County9 WSW Tequesta 02 1550EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated wind gusts to 60 mph, approximately 2 miles southeast of Caloosa on State Route 710.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hendry County2 N La Belle 02 1600EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Two large trees were downed 1 mile north of La Belle on Highway 78.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Glades CountyLakeport 02 1655EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Estimated winds up to 60 mph in Lakeport with some power outages.A weak surface trough along with a Tropical Wave over eastern Cuba produced scattered thunderstorms during the afternoonacross portions of South Florida. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Palm Beach County12 W Tequesta 03 1200EST1205EST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was observed in association with a strong shower over northern Palm Beach County.Miami-Dade County8 NW Redland 03 1217EST 0 0 0.00K 0.00K Funnel CloudPublic reported a funnel cloud approximately 5 miles west of SW 168th Street in the Richmond Heights area.Collier CountyNaples 03 1600EST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail was reported by Collier County Sheriff.A Tropical Wave from the northern Bahamas extending south to central Cuba and the western Caribbean Sea producedscattered thunderstorms during the afternoon across South Florida.Collier County1 E North Naples 09 1645EST 0 0 0.00K 0.00K Hail (0.75)A trained spotter in North Naples reported lots of hail falling with some up to the size of pennies.Abundant tropical moisture along with an unstable atmosphere produced strong thunderstorms in the Naples area during theafternoon.Broward County1 SSE (FXE)Ft Laudrdl Exec 14 1404EST 0 0 0.00K 0.00K Funnel CloudThe weather observer at Fort Lauderdale Executive Airport reported a funnel cloud. Additionally, local law enforcementofficials and a trained spotter relayed similar reports of a funnel cloud near the southeast quadrant of the FXE airport.92

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, SouthernAbundant tropical moisture along with an unstable atmosphere produced scattered afternoon thunderstorms across portions ofSouth Florida.Broward County2 S Margate 17 1700EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A skywarn spotter estimated wind gusts of around 60 mph near the intersection of Atlantic Boulevard and Banks Road inMargate. Some tree limbs downed with at least one hitting a car.An upper trough of low pressure moved across North Florida producing scattered thunderstorms over portions of South Florida.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Glades CountyOrtona 22 1700EST 0 0 0.00K 0.00K Funnel CloudA paramedic reported a funnel cloud in the Ortona Area.An upper trough of low pressure over the eastern U.S. along with a stationary front across North Florida produced scattered lateafternoon thunderstorms near Lake Okeechobee.FLZ172-173Coastal Broward - Miami-Dade26270000EST1100EST 0 0 644.0K 0.00K Storm Surge/TideFLZ067>069-072>074-168-172>173Coastal Broward - Coastal Collier - Coastal Palm Beach - Inland Miami-Dade - Inland Palm Beach -Metro Broward - Metropolitan Miami-Dade - Miami-Dade - Palm Beach26270000EST1300EST 0 0 750.0K Tropical StormBroward County3 NW Lauderdale Lakes 26272200EST1600EST 0 0 2.00M 0.00K Flash FloodModerate to severe flooding occurred over parts of northern metro Broward County. Hardest hit areas were in Lauderhill fromCommercial Boulevard to NW 44 ST between University Drive and Pine Island Road where canals overflowed their banks andstreets were flooded for a few days. A few homes sustained minor water damage. A few on-ramps to the Sawgrass Expresswaywere closed due to standing water.Rainfall amounts in these areas were in the 8-12 inch range.Palm Beach County6 W Boca Raton3 W Palm Beach Gardens26272200EST1600EST 0 0 7.80M 0.00K Flash FloodModerate to severe flooding affected a large portion of metro Palm Beach County west of the Florida Turnpike. Hardest hitcommunities include The Acreage, Royal Palm Beach, Loxahatchee and Wellington. Canals were overtopped and communitieswere stranded by high water for several days after the rains stopped. Few homes suffered water damage, but major damage wassustained to infrastructure, including roads and water management structures.Rainfall amounts as high as 16 inches were measured in Royal Palm Beach and Loxahatchee, with estimates in excess of 18inches in a two-day period.FLZ069Coastal Collier27 0500EST1500EST 0 0 6.0M 0.00K Storm Surge/TideBroward County4 NW Lauderdale Lakes 27291600EST1400EST 0 0 0.00K 0.00K Flood93

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, SouthernFlooding lingered in portions of Lauderhill from torrential downpours on August 26th and 27th. Damage estimates and impactsare included in the Flash Flood entry for Broward County.Palm Beach County4 SE Wellington3 SSW Loxahatchee27311600EST2359EST 0 0 0.00K 0.00K FloodFlooding persisted over the western communities of Palm Beach County through the end of August as a result of torrential rainsfrom Tropical Storm Isaac which fell on August 26th and 27th.Damage estimates and impacts caused by the flooding is included in the Flash Flood entry for Palm Beach County.FLORIDA, West CentralTropical Storm Isaac moved west-northwest across the Florida Straits south of the Florida Keys on August 26. The northernedge of the wind and rain area associated with Isaac affected the South Florida peninsula throughout the day on the 26th. Isaaccontinued on a west-northwest track into the Gulf of Mexico on the 27th with winds, rain and flooding continuing over parts ofSouth Florida.Lee County1 S Estero 03 1505EST1510EST 0 0 0.00K 0.00K Hail (0.75)A SKYWARN spotter reported penny sized hail and heavy rain near Bonita Springs.The seabreeze circulation produced scattered showers and thunderstorms during the late afternoon. One of these thunderstormsdropped penny sized hail.Lee County3 SSE Bonita Spgs 06 1510EST1515EST 0 0 0.00K 0.00K Hail (1.00)Sheriff's department reported quarter sized hail along Interstate 75.Hillsborough County1 NNE Sulphur SpgsSaffold06 1630EST1830EST 0 0 0.00K 0.00K FloodBroadcast media reported roads closed due to flooding near Linebaugh Avenue and Nebraska Avenue. Additionally, one ortwo inches of water flooded some ground floor units at the Richmond Hill Apartment Complex at the same intersection.Road closures also occurred at 113th Avenue and 15th Street intersection due to a foot of standing water.Near Florida Avenue and Busch Boulevard at the Floriland Business Center, around 30 cars were stuck in standing water fromthe heavy rain.Pasco CountyWesley Chapel 06 1640EST 0 0 5.00K 0.00K Thunderstorm Wind (45EG)A couple of carports and fences were damaged in Wesley Chapel. In addition, small hail and minor flooding were reported.Deep layer moisture allowed seabreeze thunderstorms to develop over west central and southwest Florida, dumping heavy rainwith minor flooding. One of these storms produced severe hail. Note: The estimated wind gust of 45 knots is equivalent to 52mph.Pasco County1 W Zephyrhills 08 1713EST 0 0 2.00K 0.00K Thunderstorm Wind (45EG)A resident reported that thunderstorm winds snapped off the top of a 60 foot pine tree which landed on a carport.A ridge of high pressure across the Florida peninsula setup light southerly winds over Central Florida that allowed a seabreezeto form. Some of the thunderstorms that developed on the seabreeze produced gusty winds. Note: The estimated wind gust of45 knots is equivalent to 52 mph.94

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, West CentralCitrus County2 SE Inverness Arpt 10 1410EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)Three large trees were reported knocked down near Floral City.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Sumter CountyColeman 10 1422EST 0 0 5.00K 0.00K Thunderstorm Wind (45EG)Emergency management survey reported multiple trees knocked down in the area of Adamsville and Coleman. One tree landedon the roof of a house on County Road 513 and two other homes received minor wind damage.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Sumter County1 E Sumterville 10 1429EST1434EST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail was reported in Sumterville.Sumter County2 SSW Bamboo 10 1500EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)Emergency management reported several trees knocked down near Wildwood.A stalled frontal boundary over northern Florida interacted with a weak tropical wave moving across the Florida peninsula toproduce numerous strong thunderstorms. Some of these storms produced small hail and gusty winds. The trees that weredowned in Citrus and Sumter Counties were reported as old with rot. Note: The estimated wind gust of 45 knots is equivalentto 52 mph.Hillsborough County2 WSW Harney 13 1315EST 0 0 385.00K 0.00K LightningA fire burned down an apartment building at Garden Isles Apartments off North 56th Street and Sligh Avenue. Investigatorsdetermined that the fire was most likely caused by a lightning strike. One resident, a 58 year old woman, died in the fire.Seabreeze thunderstorms moved through west central Florida during the early afternoon. One thunderstorm started a fire at anapartment building, that destroyed the structure and killed one resident.Hillsborough County1 W Plant City 14 1442EST1445EST 0 0 0.00K 0.00K Hail (0.88)Broadcast media relayed a few reports of nickel sized hail from the public.A humid and unstable environment fueled seabreeze thunderstorms. One of these storms produced small hail.Pinellas County1 N Belmont 20 1605EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)Broadcast media reported an aluminum awning was torn off a building at the intersection of South Evergreen Avenue andBellair Road.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Hillsborough County2 NNW Tpa P O Knight Arpt 20 2130EST 0 0 1.00K 0.00K Thunderstorm Wind (39EG)Thunderstorm wind gusts knocked down an elongated temporary tent being setup as a tunnel for the Republican NationalConvention. Wind gusts in the area were reported as high as 45 MPH.A cold front stalled over northern Florida with a prefrontal trough ahead of the front sliding down the peninsula, along with aline of thunderstorms. One of these storms produced damaging wind gusts. Note: The estimated wind gust of 39 knots isequivalent to 45 mph.95

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, West CentralHillsborough County1 S Temple Terrace 21 1543EST 0 0 0.00K 0.00K Hail (0.88)A trained spotter reported nickel sized hail in the Temple Terrace area.A trough of low pressure moving across the eastern Gulf of Mexico fueled thunderstorms over central Florida. One of thesestorms produced a brief hail shower.Highlands County4 SW Lake Jackson 23 1924EST 0 0 0.00K 0.00K Hail (0.88)A trained spotter reported nickel sized hail near Sebring.A decaying trough of low pressure over the eastern Gulf of Mexico produced thunderstorms with small hail.Highlands County2 ESE Lorida 27 0300EST1100EST 0 0 0.00K 0.00K Heavy RainHeavy rain from Tropical Storm Isaac dumped up to 6 inches of rain and closed a small part of U.S. Highway 98 betweenCowhouse Road and County Road 621. Arbuckle creek overflowed its banks and filled the drainage ditches along side of U.S.98 and put a few inches of water on the road.Hillsborough County1 NNW Cruise Terminal2 Port Site 27 1544EST1545EST 0.04 20 0 0 2.00K 0.00K Tornado (EF0)A waterspout moved ashore and damaged six residences on Maple Avenue near 22nd Street. Local fire and rescue reportedminor damage to fences and trees on the properties and very minor roof damage.Sarasota County3 WNW Warm Mineral Springs27301700EST1200EST 0 0 20.00K 0.00K FloodThe Myakka River at Ramblers Mobile Home Park flooded it's banks and caused minor flooding to several mobile homes.Water rose up to the doorsteps of several units and flooded parking lots and grassy areas.Tropical Storm Isaac crossed eastern Cuba on August 25th and moved northwest through the Florida Keys and into the easternGulf of Mexico. A Tropical Storm Watch was issued for Pinellas County south through Lee County on the morning of the 25thand was extended north through Levy County that afternoon. Tropical Storm Warnings were issued overnight on the 25th/earlymorning on the 26th for the entire area. Additionally, the Governor of Florida issued a declaration of a state of emergency onthe 25th. Isaac stayed off the western Florida coast and eventually made landfall in southeastern Louisiana at Hurricanestrength.The impacts of Isaac over west central and southwest Florida were minimal. One waterspout was spotted over the Tampa Bayand moved inland as a brief tornado with minor damage.The heaviest rain fell in Highlands County, with over 6 inches of rain across most of the county, and minor road floodingreported. The highest storm total rain report for the area was 6.71 inches at the CoCoRaHS station 3.9 SSW Sebring.Additional flooding occurred along the Myakka River near Venice in Sarasota County, where a mobile home park sustainedminor flooding.Tropical storm force wind gusts were confined to coastal area, with wind gusts of 34 to 46 knots reported along the coast.Storm surge was fairly minor, with less than 3 feet of surge at all forecast points. At Fort Myers, 2.31 feet of surge wasreported, or 3.22 feet of storm tide (MLLW). At Saint Petersburg, 2.48 feet of surge was reported, or 3.90 feet of storm tide(MLLW). At McKay Bay Entrance, 2.56 feet of surge was reported, or 4.19 feet of storm tide (MLLW). At Cedar Key, 2.91feet of storm surge was reported, or 5.77 feet of storm tide (MLLW).96

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, West CentralFLORIDA, West PanhandleRiver flooding at the Ramblers Mobile Home Park during Tropical Storm Isaac. Photograph by Jason Ritter.Escambia CountyPensacola 02 1130CST1132CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Winds estimated at 60 mph downed trees and powerlines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Escambia CountyPensacola 02 1200CST1202CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)Winds estimated at 60 mph downed a tree on house and downed powerlines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Escambia CountyPensacola 02 1300CST1302CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Winds estimated at 60 mph blew windows out of a bus at 9th and College Blvd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Santa Rosa CountyNavarre 02 1320CST1322CST 0 1 0.00K 0.00K LightningA 54 year old Male was stuck by lightning and suffered minor injuries.Thunderstorms developed across the Florida Panhandle during the afternoon and produced high winds and lots of lightningwhich caused damage.Okaloosa County2 SSE Ocean City 07 1330CST1430CST 0 0 0.00K 0.00K FloodHeavy rain caused water to back up onto Eglin Parkway and Beachview Drive.Heavy rains caused flooding in northwest Florida.97

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012FLORIDA, West PanhandleEscambia CountyPensacola 10 1045CST1047CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)High winds damaged a Hobby Lobby store on N Davis Highway in Pensacola.High winds from a thunderstorm microburst caused damage to a Hobby Lobby store in Pensacola. Note: The estimated windgust of 61 knots is equivalent to 70 mph.FLZ002-004-006Coastal Escambia - Coastal Okaloosa - Coastal Santa Rosa28290600CST1800CST 3 0 0.00K 0.00K Tropical StormGEORGIA, East CentralHurricane Isaac moved into central Louisiana. This track brought storm surge...flooding...and isolated tornadoes to the centralgulf coast. M?IWBurke County4 E Midville 02 1340EST 0 0 0.00K 0.00K Hail (1.00)Post Office reported 1 inch hail on Bunn Store Road.Burke County3 E Midville 02 1340EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Post Office reported 2 trees down on Shady Lane near Midville.A couple of severe thunderstorms produced some wind damage and large hail in the lower portions of the CSRA. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.Columbia County1 ENE Martinez 07 1853EST2015EST 0 0 280.00K 0.00K Flash FloodSheriff reported 3 1/2 feet of wather covering Habersham Road in the Watervale subdivision.Richmond County3 NNW National Hills 07 1854EST2020EST 0 0 60.00K 0.00K Flash FloodSheriff reported water inside an apartment complex on Stevens Creek Road.Richmond County1 WNW Lakemont3 WSW Albion Acres07 1856EST2020EST 0 0 80.00K 0.00K Flash FloodSheriff reported water inside a personal care home on Division Street with several roads closed.Richmond CountyPeach Orchard 07 1859EST2020EST 0 0 10.00K 0.00K Flash FloodSheriff reported flooding on Bungalow and Peach Roads that were closed.Richmond County1 WNW Lakemont 07 1859EST2020EST 0 0 16.00K 0.00K Flash FloodSheriff reported a vehicle stalled in a flash flood in the 100 block of Wood street with a person in side, swift water rescue teamhad to save the person.98

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, East CentralRichmond County1 WSW Avondale 07 1935EST2030EST 0 0 10.00K 0.00K Flash FloodWRDW TV reported flash flooding in Harlem closing several roads including South Louisville Street in Harlem.Locally heavy rains produced some flash flooding in portions of the CSRA as nearly stationary thunderstorms lingered over thearea.Burke County1 NW Waynesboro 09 1735EST1743EST 0 0 32.00K 0.00K Thunderstorm Wind (60EG)Sheriff and Emergeny Manager reported many trees down from Leonard Circle in Waynesboro to Barrett Plantation Road justnorth of Waynesboro. Some of the trees fell on homes doing minor damage.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Emergency Manager Rusty Sanders took these photos of trees on homes in the Waynesboro area.Richmond County1 NW South Nellieville 09 1826EST1830EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Sheriff reported a tree down on Milledge Road at Battle Row.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richmond County2 N National Hills 09 1826EST1830EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Sheriff reported large limbs down on Washington Road at Bertram Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia County2 NE Martinez 09 1834EST1838EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Sheriff reported a couple trees down on Stevens Creek Road and Old Stevens Creek Road.Scattered severe thunderstorms produced some wind damage, mainly trees, and some small hail. Note: The estimated windgust of 50 knots is equivalent to 58 mph.99

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, East CentralColumbia County2 NNW Berzelia 11 1000EST1030EST 0 0 1.00K 0.00K Flash FloodLAW ENFORCEMENT reported a flash flood on Harlem-Grovetown Road and off streets near Louisville Road.Columbia County2 NNE Grovetown 11 1000EST1030EST 0 0 1.00K 0.00K Flash FloodLaw Enforcement reported flash flooding in the area of John Deere Parkway and Horizon South.Richmond County1 NW De Bruce 11 1015EST1045EST 0 0 4.00K 0.00K Flash FloodLaw Enforcement reported flash flooding in the area of Laney Walker Blvd.Richmond County2 ENE De Bruce 11 1015EST1045EST 0 0 2.00K 0.00K Flash FloodLaw Enforcement reported flash flooding along Magnolia Ave. in Augusta.Richmond County1 ENE De Bruce 11 1015EST1045EST 0 0 4.00K 0.00K Flash FloodLaw Enforcement reported flash flooding in the area of East Hall Streen in Augusta.Locally heavy rains produced some flash flooding in Columbia and Richmond Counties.Richmond County1 S South Nellieville 17 1645EST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)GEORGIA, LowerDispatch and Emergency Management reported numerous trees and powerlines down Richmond County, especially in theAugusta area. Up to three thousand residents were without power.Widely Scattered thunderstorms produced some wind damage in the area, mainly to trees and powerlines throughout RichmondCounty. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Jeff Davis CountyHazelhurst 02 1420EST 0 0 2.00K 0.00K LightningA substation at Highway 23 and Hinson Farm Road was struck by lightning. A power outage occurred which affected 1,577customers. The cost of electrical damage was estimated.Prevailing westerly flow enabled a dominant west coast sea breeze to traverse an unstable and moist airmass during theafternoon and evening which spark scattered strong to severe storms. A short wave trough over southeast Georgia providedfurther destabilization and lift to the storm environment.Atkinson CountyPearson 07 1440EST 0 0 Thunderstorm Wind (50EG)A large tree was blown down on Highway 82 and County Road 212.Scattered storms developed over an unstable airmass along the sea breezes. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Wayne County1 W Jesup 09 1650EST 0 0 2.00K 0.00K Thunderstorm Wind (45EG)Trees and power lines were blown down in Jesup. The time was estimated based on radar data. The cost of damage wasestimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.100

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, LowerWayne County1 N Jesup 09 1657EST 0 0 Thunderstorm Wind (50EG)Trees and power lines were blown down in Jesup. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Wayne County4 W Doctortown 09 1705EST 0 0 Thunderstorm Wind (50EG)Trees were blown down into power lines. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Wayne County1 NNW Jesup 09 1710EST 0 0 Thunderstorm Wind (50EG)A spotter reported damage to 60 ft of a metal awning that was on a shopping center in downtown Jesup at the corner of CherrySt and Macon St.A mid level short wave trough moved over the area during the afternoon from the west. This featured combined with prevailingWSW flow and high moisture produced scattered severe storms along the sea breezes and resultant outflow boundaries. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Charlton County16 W Paxton 15 1440EST 0 0 Thunderstorm Wind (50EG)Trees were blown down near the cabins in Stephen Foster State Park.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Charlton County1 SE Homeland 15 1500EST 0 0 2.00K 0.00K LightningLightning started a fire at a power substation in Folkston. Power outages were caused to customers in Charlton, Camden andNassau counties. The cost of repair was estimated.A short wave trough moved over the area from the Florida Panhandle area during the afternoon. Upper level temperaturesaround -7 to -8 degrees Celcius and precipitable water values just under 2 inches provided enough instability and moisture forscattered severe storms to develop and persist along the sea breezes and outflows during the afternoon and evening as the uppertrough passed over the area aloft.Coffee County1 WSW Lotts 16 1725EST 0 0 10.00K 0.00K LightningA lightning strike hit a home south of Broxton and started a fire. The cost of damage was estimated and there were no injuries.Coffee County2 NNW Huffer 16 1725EST 0 0 Thunderstorm Wind (50EG)Trees were blown down along the Broxton-West Green Highway.Mean troughing to the west and northwest continued a moist and unstable flow over the area. The west coast sea breezeadvanced inland and merged with the east coast sea breeze near the east coast during the late afternoon and evening. Isolatedstrong to severe storms developed. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Camden County1 ESE Kingsland 28 1630EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)A tree was blown down on the westside of Kingsland. The cost of debris removal was estimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Camden County2 SE Clarks Bluff 28 1630EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)A tree was blown down along State Road 110 southwest of Woodbine. The cost of debris removal was estimated.Dry air was over inland northeast Florida which wrapped around the south and southeast side of Isaac which was over the northcentral Gulf of Mexico. High moisture and instability continued over coastal northeast Florida, SE Georgia and the St. JohnsRiver basin where a few severe storms developed during the afternoon during maximum heating. Note: The estimated windgust of 45 knots is equivalent to 52 mph.101

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, LowerCoffee County3 NE Douglas 29 1525EST 0 0 Thunderstorm Wind (50EG)Trees were blown down along New Forest Highway northeast of Douglas. The time of damage was based on radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Coffee County2 S Douglas Muni Arpt 29 1540EST 0 0 0.10K 0.00K LightningLightning struck a tree and caused some damage to the tree. The cost of property damage was estimated.Coffee County1 SW Nicholls 29 1540EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)A tree was blown down along Henry Rowell Road in Nihcolls. The time of damage was based on radar. The cost of debrisremoval was estimated.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Coffee County1 E Nicholls 29 1542EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)GEORGIA, North and CentralPower lines were blown down near the intersection of Alma Avenue and Vinson Spring Street. The time was based on radar.The cost of repair was estimated.The area was between Isaac to the west and high pressure over the Atlantic. A warm and moist southerly flow prevailed withmodest instability and high moisture. The sea breezes, lingering outflows and new outflows triggered scattered strong toisolated severe storms over Southeast Georgia. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Chattooga County2 SSW Subligna 01 1514EST 0 0 0.75K 0.00K Thunderstorm Wind (45EG)The Chattooga County Emergency Manager reported three trees down on Subligna Road.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Forsyth CountyCumming 01 1530EST 0 0 400.00K 0.00K LightningThe Forsyth County Emergency Manager reported four lightning fires in and around Cumming. Two houses, one on LoblollyLane and another on Hawk Creek Road, were completely destroyed, while two others, one on Crossland Drive and a condo onTribble Gap Road, sustained only minor damage. No injuries were reported.Forsyth County1 NE Cumming1 NE Mars Hill Crossroads01 1537EST1545EST 0 0 200.00K 0.00K Thunderstorm Wind (65EG)The Forsyth County Emergency Manager reported widespread wind damage from Cumming and points south. Numerous treeswere blown down, many on houses. Power lines, street lights and stop lights were blown down as well. Three mobile homeswere destroyed by falling trees on Homesteaders Drive, and another was damaged but repairable.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Walker County1 E Bronco 01 1821EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)The NSSL SHAVE Project relayed a report of several snapped trees in the southern part of Walker County. One pecan treewas snapped at the base and landed on the roof of a barn.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walker County1 NE Bronco 01 1827EST1832EST 0 0 0.00K 0.00K Hail (1.00)The NSSL SHAVE Project relayed a report of quarter sized hail.102

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, North and CentralWalker County6 SW La Fayette 01 1830EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)The Walker County 911 Center reported several trees down in the southern part of the county.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chattooga County2 ENE Neal Crossing 01 1834EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)The Chattooga County Emergency Manager reported numerous trees blown down in Teloga.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Walker County1 NE Center Post 01 1835EST1840EST 0 0 0.00K 0.00K Hail (1.00)The NSSL SHAVE Project relayed a report of quarter sized hail.Dade County1 W Wildwood 01 2215EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Law enforcement reported several trees were blown down in the Wildwood area.An upper trough remained along the Eastern Seaboard, with intermittent shortwaves working their way down the northwestflow aloft. A stationary front that had moved into the area the last couple of days in July retreated slightly to the north,providing a focus for showers and thunderstorms to develop especially across north Georgia. A few of these thunderstormswere able to reach severe limits, with damaging winds and large hail reported. Additionally, lightning caused at least fourhouse fires in Forsyth County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Wilcox County1 W Rochelle 02 1310EST 0 0 40.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported several trees down in Rochelle; one large oak tree fell on a mobile home.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Laurens CountyDudley 02 1515EST 0 0 0.75K 0.00K Thunderstorm Wind (45EG)The Laurens County 911 Center reported that three trees were blown down in Dudley.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.De Kalb County1 SE Vista Grove 02 1730EST 0 0 80.00K 0.00K Thunderstorm Wind (50EG)Broadcast Media relayed reports of several trees down across northeast Atlanta, including on Iverson Avenue, Hardee Streetand Sinclair Avenue. A tree fell on Fox Brothers Barbeque on DeKalb Avenue. No one was injured.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Fayette County1 NE Harp 02 1825EST 0 8 1.00K 0.00K LightningThe Fayette County Emergency Manager relayed a report of a house being struck by lightning on Hilo Road. The house wasdamaged in the small fire that resulted. The family was sitting under an awning, and eight people were transported to thehospital with minor injuries.De Kalb CountyDruid Hills1 SE (PDK)Dekalb Peachtre02 1920EST2235EST 0 0 2.00K 0.00K Flash FloodSocial media sites provided a video of flash flooding in the North Druid Hills area. Small streams were overflowing andflooding yards and roads up to two feet deep.103

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, North and CentralThe upper trough continued in place over the Eastern Seaboard while the weak front that sparked thunderstorms on the 1stcontinued to sag south on the 2nd. An upper ridge began to build in again from the west but was not yet dominating the area.Several showers and thunderstorms developed in the afternoon and evening hours, and a few of these became severe withmainly damaging winds reported. Also, several people were injured in a lightning strike in Fayette County, and one incident offlash flooding occurred in DeKalb County.De Kalb County2 NW Redan 03 1810EST 0 0 70.00K 0.00K Thunderstorm Wind (45EG)The DeKalb County police department reported that a tree was blown down on a house along Rockmoor Drive.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Gwinnett County1 NE Centerville 03 1820EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Fayette County1 N Fayetteville2 S KenwoodThe public reported several trees down south of Snellville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.03 1850EST1855EST 0 0 120.00K 0.00K Thunderstorm Wind (56EG)The Fayette County Emergency Manager reported that numerous power lines were blown down along Highway 85. Roofswere blown off five buildings at a U-Haul facility in the 1500 block of North Highway 85. Vehicles in the parking lot werealso damaged.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Fayette County2 NNW Fayetteville 03 1855EST 0 0 100.00K 0.00K LightningThe Fayette County Emergency Manager reported a lightning fire at a home along Woodbyne Drive, causing extensivedamage.Fayette County1 NE Brooks 03 1915EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)The Fayette County Emergency Manager reported that several power lines were blown down in Brooks.Hall County1 NNW White SulphurGainesvilleThe upper trough over the Eastern Seaboard began to lift toward the northeast on the 3rd. The weak front responsible forthunderstorms on the 1st and 2nd dissipated as an upper ridge built in from the west, but left a boundary across the state thatprovided a focus for thunderstorm development. Like the previous days, several showers and thunderstorms developed in theafternoon and evening hours, and a couple of these became severe with damaging winds reported. Note: The estimated windgust of 50 knots is equivalent to 58 mph.08 1645EST1655EST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)Broadcast Media relayed reports from Hall County Fire Services of numerous trees and power lines down on the north side ofGainesville, including on Riverside Drive, Blueberry Hills Drive, Enota Avenue, Enota Drive, Park Hill Drive, and GreenStreet Circle.A shortwave pushed through the Southeast on the 8th, leaving the remnants of weak front across the state. Several showers andthunderstorms developed during the afternoon and evening, and one was able to reach severe levels with damaging windsreported. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Cobb County4 WSW Powder Spgs 09 1408EST 0 0 60.00K 0.00K LightningBroadcast Media reported that lightning struck a home on Kitties Court in Powder Springs. The fire damage was minimal, butwater damage from extinguishing the fire was extensive.Fulton County2 SSE Atlanta 09 1455EST 0 1 0.00K 0.00K LightningThe Atlanta Fire Department reported that a man was injured when he was struck by lightning while working on the roof of theMarriott Marquis hotel on Peachtree Center Avenue.104

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, North and CentralPulaski CountyHawkinsville 09 1458EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)De Kalb CountyOglethorpe Universit1 SSW DunwoodyThe Pulaski County Emergency Manager reported that two trees and several power lines were blown down in and just east ofHawkinsville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.09 1510EST1515EST 0 2 75.00K 0.00K Thunderstorm Wind (50EG)Broadcast Media relayed reports of several trees down in northern DeKalb County, especially toward the Dunwoody area. Onetree fell on a home on Mendell Circle, injuring a man and his elderly aunt.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Fulton County2 NE Sandy Spgs 09 1515EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Broadcast Media reported that a few trees and a few power lines were blown down in the Dunwoody area of north FultonCounty.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Gwinnett County1 NW Lawrenceville 09 1542EST 0 0 300.00K 0.00K LightningGwinnett police and the Broadcast Media relayed reports of three house fires; one on Stoneforest Drive, one on Georgian PointDrive, and another on Lake Lucerne Drive. All three homes were heavily damaged.Monroe County4 NE Smarr 09 1637EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)The Monroe County 911 Center reported that several trees were blown down east of Interstate 75.A mid-level low was deepening over the Great Lakes, with a series of shortwaves rotating around it. One wave moved throughon August 9th, and several showers and thunderstorms developed as a result. Several lightning strikes resulted in house firesacross the area. Additionally, a couple of storms became severe across central Georgia with wind damage reported. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.Bartow County4 ESE Mc Callie 10 2025EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)The Bartow County 911 Center reported that several trees were blown down along and near Georgia Highway 20.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cherokee CountySutallee 10 2035EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Cherokee County1 ESE North Canton1 ENE Ball GroundThe Cherokee County Emergency Manager reported that several trees and power lines were blown down along and nearGeorgia Highway 20.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.10 2045EST2050EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)The Cherokee County Emergency Manager reported a couple of trees were blown down on the east side of Canton alongGeorgia Highway 20.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Dawson County1 S Lumpkin 10 2100EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)The Dawson County 911 Center reported that a couple of trees were blown down along Georgia Highway 53 near War HillPark Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.105

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, North and CentralDawson County1 NNE Hubbardsville 10 2105EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)The Dawson County 911 Center reported two downed power lines along Cowart Road.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Forsyth County2 W Matt 10 2115EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Toombs County1 N Santa Claus2 NNE OhoopeeThe Forsyth County 911 Center reported that a couple of trees were blown down on Wallace Tatum Road and Highway 369,and on Old Federal Road and County Line Road.A large upper trough remained in place over the Northeast, with intermittent disturbances rotating around the base of thetrough. A cold front pushed into the state with one of these disturbances, allowing several showers and thunderstorms todevelop. A couple of these storms became severe with damaging winds. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.11 1930EST2345EST 0 0 15.00K 0.00K Flash FloodSeveral private ponds overflowed and washed out a few secondary dirt roads 1 to 2 miles east of Santa Claus. A pondoverflowed and caused erosion damage to Ben Roy McLeandon Road.Tropical moisture with dewpoint temperatures in the low to mid 70s prevailed over most of Georgia in advance of an upperlevel trough. An associated cold front ahead of the trough moved through Georgia producing numerous showers and scatteredthunderstorms primarily over central and south sections of the state. Thunderstorms with heavy rain trained over centralToombs county with up to 6 inches of rain in around 4 hours. This caused flash flooding on some of the creeks and severalprivate ponds overflowed.Taylor County1 ENE Butler1 SSW Reynolds14 1450EST1500EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Several trees were blown down, some onto power lines, mainly along Highway 96 between Butler and Reynolds.Bibb County2 W Terra Cotta2 W FranklintonNote: The estimated wind gust of 50 knots is equivalent to 58 mph.14 1530EST1535EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Amateur radio operators relayed reports of several trees down across the east and southeast portions of Bibb County.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Houston County3 S Perry 14 1540EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)The Houston County Emergency Manager reported two large trees down.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.Jones County1 ENE Griswoldville 14 1550EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Amateur radio operators relayed reports of several trees down near Griswoldville Road.Twiggs County3 NNE Mount Olive2 SE JeffersonvilleNote: The estimated wind gust of 50 knots is equivalent to 58 mph.14 1605EST1610EST 0 0 60.00K 0.00K Thunderstorm Wind (50EG)The Jefferson County 911 Center and Amateur radio operators reported trees down between Interstate 16 and Jeffersonville. Atree fell on a house on Charlie Floyd Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.106

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, North and CentralWilkinson County1 S Toomsboro 14 1640EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)Amateur radio operators relayed reports of numerous trees down in the Toomsboro area.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Washington County1 E Irwins Crossroads 14 1657EST 0 0 40.00K 0.00K Thunderstorm Wind (50EG)WMAZ relayed reports of a barn destroyed along Tennille-Harrison road.Washington County1 NW Tennille1 WSW SandersvilleNote: The estimated wind gust of 50 knots is equivalent to 58 mph.14 1700EST1705EST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)The Washington County 911 Center reported numerous trees and power lines down in the Sandersville and Tenille areas.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Jefferson County3 N Bartow 14 1725EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)The public reported that several trees and many large limbs were blown down, some blocking Highway 221.Glascock County1 NNW Mitchell3 WNW BlumeNote: The estimated wind gust of 50 knots is equivalent to 58 mph.14 1730EST1735EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)The Glascock County Emergency Manager reported several trees were blown down between Highway 123 and County LineRoad Southwest. The trees were mostly rotten.A shortwave pushed into the the Southeast on the afternoon of the 14th, bringing a cold front through Georgia. Showers andthunderstorms developed along and ahead of the front as it moved south. Several storms became severe, with damaging windsreported. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hall County3 WNW Gnesville Cotton Mil 24 0022EST0027EST 0 0 0.00K 0.00K Hail (1.00)GEORGIA, NortheastThe public reported quarter sized hail in Gainesville.A weak boundary across extreme north Georgia, along the Tennessee line, provided a focus for thunderstorms to develop lateon the evening of the 23rd. Enough instability was in place to allow a thunderstorm to briefly reach severe limits, with largehail reported, early on the 24th in Hall County.Stephens CountyToccoa 02 1956EST 0 0 Thunderstorm Wind (50EG)Several trees were blown down, mainly on the north side of town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Stephens County2 SE Tournapull 02 2014EST 0 0 Hail (1.00)Quarter size hail was reported about 5 miles east northeast of Toccoa.Scattered thunderstorms developed over northeast Georgia during the evening hours. One of the storms produced large hail andwind damage.107

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastScreven County3 NW Zeigler 02 1345EST1346EST 0 0 0.00K 0.00K Hail (1.50)Hail up to the size of ping pong balls fell in the 1600 block of Bay Branch Road.Chatham County1 SE Garden City 02 1345EST1346EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)A tree fell down on a house on Rommel Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bulloch County4 E Esla 02 1347EST1348EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported one tree and several large limbs blown down near exit 132 on Interstate 16.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bulloch County4 E Esla 02 1350EST1351EST 0 0 0.00K 0.00K Hail (1.00)The hail fell near exit 132 on Interstate 16.Effingham County2 E Guyton 02 1355EST1356EST 0 0 0.00K 0.00K Hail (0.88)The public reported nickel sized hail and gusty winds along Little McCall Road.Effingham County1 W Marlow 02 1359EST1400EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)One tree and power lines reported down on Highway 17 near Lambert Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Effingham County2 NNW Marlow 02 1404EST1405EST 0 0 0.00K 0.00K Hail (1.25)A report of marble to half dollar sized hail in Pineora relayed by broadcast media.Effingham County4 S Marlow 02 1405EST1406EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree reported down on Highway 17 near Blue Jay Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Screven County1 W Sylvania 02 1418EST1419EST 0 0 0.00K 0.00K Hail (1.00)The public reported penny to quarter sized hail falling in downtown Sylvania near the intersection of Nimms Road andOgeechee Road.Chatham County4 NNE Burroughs 02 1440EST1441EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree reported down near the 5700 block of Ogeechee Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.108

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastEffingham County2 WNW Stillwell 02 1450EST1451EST 0 0 0.00K 0.00K Hail (1.25)The public reported hail up to the size of half dollars on Mock Road.Effingham CountyClyo 02 1505EST1506EST 0 0 0.00K 0.00K Hail (0.88)The public reported nickel sized hail in Clyo. The report was relayed by the National Weather Service office in Columbia,South Carolina.Effingham County2 ESE Shawnee 02 1522EST1523EST 0 0 0.00K 0.00K Hail (1.75)Golf ball sized hail reported by the public near the intersection of Springfield Road and Old Dixie Highway.Liberty County1 NE Flemington 02 1530EST1531EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Liberty County dispatch reported a tree down on a power line in Flemington.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty County2 N Midway 02 1535EST1536EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree reported down near the intersection of Luke Road and Highway 17.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty County3 NNE Mc Intosh 02 1540EST1541EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail in Fort Stewart.Liberty County2 W Midway 02 1545EST1546EST 0 0 0.00K 0.00K Hail (0.88)Liberty County call center relayed a report from a Sheriff's Deputy of nickel sized hail near the intersection of Lewis FrasierRoad and Highway 84.Liberty County2 SE Allenhurst 02 1545EST1546EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Liberty County 911 call center relayed a report of one tree down along Highway 119.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty CountyWalthourville 02 1615EST1616EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Liberty County 911 call center reported one tree down near the intersection of Highway 119 and Highway 84.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.109

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastLiberty County2 NE Gum Branch 02 1622EST1623EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Liberty County 911 reported a tree down near the intersection of Lee Road and Bacon Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty CountyHinesville 02 1635EST1636EST 0 0 1.50K 0.00K LightningThe Liberty County 911 call center reported that lightning struck a tree causing it to fall on a house in Hinesville.A shortwave and associated thermal trough aloft interacted with a weakly sheared and strongly unstable environment.Thunderstorms initiated along inland mesoscale boundaries and became multi-cellular with strong moist updrafts progagatingmainly south and east across the forecast area. Thunderstorms produced scattered wind damage and multiple instances of largehail.Tattnall County5 NNW Manassas 07 1524EST1525EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Thunderstorm winds blew down power lines near the intersection of Sam Green Road and Herbert Holton Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Liberty County3 SSE Fleming 07 1547EST1551EST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)Liberty County dispatch reported several trees and power lines down. One of the trees was down on a house.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Bryan County2 NNW Richmond Hill 07 1615EST1616EST 0 0 0.00K 0.00K Hail (1.00)A trained spotter reported quarter sized hail in Richmond Hill near the intersection of Highway 17 and Highway 144.Chatham County2 NE William Hill 07 1621EST1622EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree fell into the right lane of Interstate 95 south bound near mile marker 97.Isolated to scattered thunderstorms developed across portions of southeast Georgia during the mid afternoon along thedeveloping sea breeze. A few of these storms became severe, capable of producing large hail and damaging wind gusts. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty County4 NW Gum Branch 09 1717EST1718EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)One tree down on a power line along Wells Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Long County3 WSW Aimar 09 1717EST1718EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree was reported down along Elim Church Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.110

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastLiberty County4 NW Gum Branch 09 1722EST1723EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree reported down along the intersection of Highway 196 and Wells Cemetery Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty County4 SSE Dorchester 09 1735EST1736EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)One tree reported down on a power line along the intersection of EB Cooper Highway and Thompson Hunting Club.An upper level trough approached the region from the west during the day as low level convergence boundaries set up with theonset of the afternoon sea breeze. Other boundaries from thunderstorm outflow also occurred and kept thunderstorm initiationgoing. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bulloch County1 W Register 11 1239EST1240EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Bulloch County warning point reported a tree down on Highway 46, one mile west of Register.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bulloch County3 ESE Jimps 11 1257EST1258EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Bulloch County warning point reported a tree down on Burkhalter Road and Golf Club Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chatham County2 NNE Wilmington Is 11 1509EST1510EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)Trees and power lines blown down along Cromwell Road.A deep upper trough associated with a closed low over the Great Lakes extended southward into the northern Gulf of Mexicoduring the day. With upper level divergence resulting from a strong jet streak occurring close to a nearly stationary front,scattered severe thunderstorms developed in the afternoon hours. Note: The estimated wind gust of 55 knots is equivalent to 63mph.Liberty County1 WSW Hinesville 15 1619EST1620EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree fell on a house along Windward Drive.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Liberty County(LHW)Ft Stewart Hine 15 1619EST1620EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)A 51 knot wind gust was recorded at Fort Stewart.With a weak trough aloft and a stalled front located near the region, thunderstorms developed across southeast Georgia. Note:The measured wind gust of 51 knots is equivalent to 59 mph.Liberty County1 E Allenhurst 17 1207EST1208EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported a power line down along Dunlevie Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.111

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastLiberty County4 E Midway 17 1237EST1238EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)The public reported one tree down along Poncell Drive.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chatham County1 W Beaulieu 17 1259EST1300EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)A large tree fell on a house near Montgomery.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Chatham County1 E Burnside 17 1301EST1302EST 0 0 0.50K 0.00K Thunderstorm Wind (55EG)One tree blocking Railroad Avenue at Shipyard Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Chatham County1 NW Vernonburg 17 1304EST1305EST 0 0 0.20K 0.00K Thunderstorm Wind (55EG)A large tree branch, twenty feet in length, down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Chatham County2 WNW Vernonburg 17 1305EST1306EST 0 0 0.50K 0.00K Thunderstorm Wind (55EG)Multiple tree limbs blown down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Chatham County1 S Burroughs 17 1308EST1309EST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Multiple trees and power lines down on Waynesboro Road in the Ogeechee Farms area.A broad upper trough was in place across the eastern United States with an inland surface trough in the lee of the AppalachianMountains. Scattered to numerous thunderstorms developed near the surface trough and affected much of Georgia and SouthCarolina. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Effingham County1 W Rincon 19 1029EST1030EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The Effingham County 911 call center relayed a report of a power line down along Long Bridge Road.With a high amplitude long wave trough aloft, and with a cold front positioned to the north, scattered severe thunderstormsdeveloped in the late morning and early afternoon hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chatham County1 SE Port Wentworth 23 1230EST1231EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported power lines blown down near the entrance to the Georgia port. The spotter also observed pea sizedhail.With a weak and broad trough positioned aloft and a weak trough at the surface, thunderstorms developed in afternoon heating.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Effingham County2 NNW Guyton 28 1605EST1606EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)The public reports three to four trees down along Highway 17.112

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SoutheastWithin the broad circulation and deep moisture associated with Tropical Storm Isaac, scattered to numerous thunderstormsdeveloped throughout the day. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.GEORGIA, SouthwestGAZ120>131-142>146Baker - Ben Hill - Calhoun - Clay - Colquitt - Dougherty - Early - Irwin - Lee - Miller - Mitchell - Quitman- Randolph - Terrell - Tift - Turner - Worth01140000EST2359EST 0 0 DroughtDrought conditions improved to below D2 status across the counties listed by the middle of August.Terrell County1 E Dawson 02 1455EST1520EST 0 0 50.00K 0.00K Thunderstorm Wind (60EG)Several trees were blown down on homes and cars through the city of Dawson. Many power lines were also down withwidespread power outages. Monetary damage was estimated.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Terrell CountyDawson 02 1457EST1500EST 0 0 Hail (1.00)The Terrell county 911 call center reported quarter size hail falling in Dawson and lasting for a few minutes.Baker County2 WNW Newton 02 1829EST1832EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Multiple trees were blown down along highway 37 with multiple trees and power lines down along Highway 200 near Newton.Monetary damage was estimated.A subtle upper level shortwave affected the area from north to south during the day. The airmass was unstable with SBCAPEvalues in the 2500-3000 j/kg range during the afternoon hours with high delta thetae values. This provided a favorableenvironment for strong to severe thunderstorms with damaging wind being the main threat, although some large hail was alsoreported. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tift County3 NNE Vanceville 07 0600EST 0 0 Heavy Rain08CoCoRaHS observer GA-TF-6 east of Tifton reported at least 11 inches of rain over the last 24 hours. The rain gauge wascompletely full and overflowing.Tift County2 NNE Tifton 07 0600EST 0 0 Heavy Rain08CoCoRaHS observer GA-TF-3 reported a 24 hour rainfall total of 9.65 inches.A weak tropical wave stalled over portions of the area, and convection flared up during the early morning hours of August 8thfor the second night in a row. Very heavy rainfall amounts led to flash flooding across the area.Lowndes County1 NE Valdosta 07 1320EST 0 0 30.00K 0.00K LightningPer the Valdosta Daily Times, lightning struck a rail car and caused a fire at the Arizona Chemical company. The rail carcontained resin, but the fire was contained with no injuries. Monetary damage was estimated.Lightning struck a rail car in the Valdosta area and caused a fire.Irwin County3 NE Ocilla 07082045EST0845EST 0 0 Heavy RainThe public reported 7 inches of rain during the overnight hours. This was measured on two farms about 3 miles northeast ofOcilla.113

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SouthwestTift County2 NW Tifton 08 0318EST0845EST 0 0 250.00K 0.00K Flash FloodSignificant flash flooding occurred across Tifton and extending eastward into eastern Tift county along Highway 82. In Tifton,the bottom floor of the Ramada Inn hotel had to be evacuated due to water entering the hotel. There was also water damage tothe Shoney's restaurant in Tifton. Exit 59 off of I-75 was also closed due to flooding along with Highway 82 east of Tifton.Around 11 inches rain fell during the overnight hours across the area. Monetary damage was estimated.Berrien County3 W Enigma 08 0519EST0845EST 0 0 0.00K 0.00K Flash FloodFlash flooding occurred across northern Berrien county. Hobbs Walker Road and Fire Tower Road were closed in Enigma dueto flash flooding, and Highway 82 was closed from eastern Tift county extending all the way to Alapaha.Irwin County4 S Ocilla 08 0519EST0845EST 0 0 0.00K 0.00K Flash FloodVery high water was reported washing over Highway 129 in southern Irwin county. Rainfall amounts up to 11 inches occurredduring the overnight hours.Tift County2 NW Tifton 08 0845EST1700EST 0 0 0.00K 0.00K FloodFlooding continued during the day after heavy rains ended in the morning, especially along Highway 82 east of Tifton, whichremained closed for much of the day.A weak tropical wave stalled over portions of the area, and convection flared up during the early morning hours of August 8thfor the second night in a row. Very heavy rainfall amounts led to flash flooding across the area.Dougherty County2 NW (ABY)SW Ga Rgnl Apt 09 1347EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The Dougherty county 911 call center reported a tree down on Mud Creek Road. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dougherty County1 WNW Albany 09 1350EST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)FOX31 reported that a tree fell on a home at 1122 West Whitney Avenue. The tree landed in the dining area of the homedestroying several windows and causing some damage to the room. There were no injuries reported to the family despite thembeing in the home at the time. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dougherty County1 W Albany 09 1350EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A FOX31 news article reported a large tree down in the road at the 1800 Block of Edgerly Avenue. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lee County1 WNW Forrester 09 1354EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)The Lee county 911 call center reported two trees down in the southern portion of the county. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.114

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SouthwestDougherty County1 NW East Albany3 NW Albany09 1405EST1500EST 0 0 1.00K 0.00K Flash FloodThe Dougherty county 911 call center reported 8 road closures around Albany due to flash flooding. These roads included2300 Nottingham, 800 Broad, 2300 Westgate, 1000 N Slappey, 1100 West 3rd, 2200 Low Water Rd, 600 Lewis, and 800Whitney.Scattered afternoon convection resulted in a pulse severe storm that moved through the Albany area, blowing down a few trees.In addition, high precipitable water values contributed to very heavy rainfall rates, leading to brief flash flooding aroundAlbany.Brooks County4 NW Empress 10 0900EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)The Brooks county 911 call center reported trees down on Greenville Highway in southern Brooks county. Monetary damagewas estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brooks County3 N Empress 10 0902EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)The Brooks county 911 call center reported trees down along Empress Road in southern Brooks county. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lowndes CountyValdosta 10 0934EST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)Three areas of trees were blown down in Valdosta, including a tree on a house on Troup Street. Monetary damage wasestimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lowndes County3 ENE Valdosta 10 0942EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A traffic light was blown down on Inner Perimeter Road. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lowndes County5 SSW (VAD)Moody Afb 10 0945EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down at Moore Rd off Lakeland Highway. Monetary damage was estimated.A small but fairly potent bow echo moved across portions of south central Georgia during the morning hours of August 10thand blew down several trees. It is fairly unusual to see bow echoes moving through this part of the country in the middle ofsummer during the morning hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Worth County6 ESE Warwick 16 1553EST 0 0 0.00K 0.00K Hail (1.00)The Worth county 911 call center reported quarter size hail on E Gleaton Road.Worth County5 N Sylvester 16 1720EST1725EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)The Worth county 911 call center reported some trees and power lines down in Sylvester as well as along Highway 33 north oftown. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Worth County5 NW Red Rock 16 1745EST1750EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)WALB reported that a large pecan tree crashed through the roof of a home on Doles Road and into the living room and masterbedroom closet. Farther down the road, another tree fell on a truck. Monetary damage was estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.115

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GEORGIA, SouthwestSeminole CountyLittle Hope 17 1551EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)HAWAIITwo trees were blown down on Woodrow Jernigan Road. Monetary damage was estimated.Relatively steep mid level lapse rates and moderate instability contributed to a few severe thunderstorms across south-centralGeorgia on August 16th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.HIZ002-013>015-018>019-021-023>024-026>027Big Island Interior - Kauai Windward - Kohala - Kona - Lanai Makai - Lanai Mauka - LeewardHaleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - South Big Island01310000HST2359HST 0 0 0.00K 0.00K DroughtDry weather persisted over much of the Aloha State through August. Drought conditions of least the severe category affectedportions of Kauai, Molokai, Maui, and the Big Island of Hawaii; and all of Lanai. County officials maintained waterrestrictions.HIZ003Kauai Leeward17220015HST1800HST 0 0 0.00K 0.00K WildfireA fire blackened about 3000 acres of dry brush along the Pokii, Paua, and Waiaka ridges near Kekaha in leeward Kauai.Several power poles were destroyed by the blaze, and many residents were without electricity for a time. Water usage in thearea around Kekaha and Waimea was affected, as well, because electrical power to a water storage tank was cut off. The costof damages was not available. There were no serious injuries reported. The cause of the fire was under investigation.Hawaii County3 SSE Pahoa7 NNW KamuelaMaui County2 ESE Makena2 S Pulehu20 0629HST0923HST 0 0 0.00K 0.00K Heavy Rain22 1505HST1716HST 0 0 0.00K 0.00K Heavy RainA low- to mid-level trough helped enhance showers over windward Big Island and leeward East Maui. There was minordrainage ditch and stream flooding, and ponding on roadways. No significant property damage or injuries were reported.HIZ002-013>015-018>019-021-023>024-026>027Big Island Interior - Kauai Windward - Kohala - Kona - Lanai Makai - Lanai Mauka - LeewardHaleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - South Big Island01310000HST2359HST 0 0 0.00K 0.00K DroughtDry weather persisted over much of the Aloha State through August. Drought conditions of least the severe category affectedportions of Kauai, Molokai, Maui, and the Big Island of Hawaii; and all of Lanai. County officials maintained waterrestrictions.HIZ003Kauai Leeward17220015HST1800HST 0 0 0.00K 0.00K WildfireA fire blackened about 3000 acres of dry brush along the Pokii, Paua, and Waiaka ridges near Kekaha in leeward Kauai.Several power poles were destroyed by the blaze, and many residents were without electricity for a time. Water usage in thearea around Kekaha and Waimea was affected, as well, because electrical power to a water storage tank was cut off. The costof damages was not available. There were no serious injuries reported. The cause of the fire was under investigation.Hawaii County3 SSE Pahoa7 NNW Kamuela20 0629HST0923HST 0 0 0.00K 0.00K Heavy Rain116

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012HAWAIIMaui County2 ESE Makena2 S Pulehu22 1505HST1716HST 0 0 0.00K 0.00K Heavy RainA low- to mid-level trough helped enhance showers over windward Big Island and leeward East Maui. There was minordrainage ditch and stream flooding, and ponding on roadways. No significant property damage or injuries were reported.IDAHO, SoutheastIDZ018Sawtooth Mountains01310001MST2359MST 0 0 0.00K 0.00K WildfireThe Halstead fire approximately 18 miles northwest of Stanley which began on July 27th grew to nearly 128,000 acres by theend of August. The following closures went into effect on August 3rd: all access points to the Cape Horn Area, all access tothe Seafoam Bubble, all access to the Frank Church River of no Return Wilderness east of the Middle Fork Wild and ScenicCorridor, east of bluebunch ridge, and north of Lola Creek, National Forest lands north of Hwy 21 and 75 to Sunbeam and westof Yankee Fork Road to Loon Creek Guard Station. The Pinyon Peak Road was closed in its entirety. All of thecampgrounds listed were closed: Beaver Creek, Lola Creek, Marsh Creek transfer, Josephus Lake, Bench, Banner, Park City,Elk Creek, Sheep Trail, Trap Creek, Vader Creek and Thatcher Creek. HIghway 75 was closed between Lower Stanley andGardner Creek.IDZ022South Central Highlands05161947MST2000MST 0 0 0.00K 0.00K WildfireLightning strikes started several fies on August 5th in what became known as the Minidoka Complex. The largest of these wasthe Cave Canyon Fire. The wildfire was about 15 miles southeast of Twin Falls and eventually grew to 88,909 acres. The firebecame 100 percent contained on August 16th. No property damage occurred and the main closures were forest service roads.IDZ023Caribou Highlands08121700MST1000MST 0 0 0.00K 0.00K WildfireLightning started two wildfires east of Pocatello in the mountains on August 8th. Both the Marsh Creek and South TopontsWildfires grew to around 100 acres before being contained.Bannock CountyChubbuckPocatello10 1430MST1445MST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)A thunderstorm downed trees onto power lines and 3 thousand people lost power in the Chubbuck area. Several branchesblown off trees and a small fire started due to a transformer blowing out. Some minor damage to houses as well occurred.A thunderstorm downed trees onto power lines and 3 thousand people lost power in the Chubbuck area. Several branchesblown off trees and a small fire started due to a transformer blowing out. Some minor damage to houses as well occurred.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lincoln CountyRichfield 26 1545MST1600MST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)At mile post 169 on highway 26 four trees and 2 power lines were downed by thunderstorm winds. Power lines fell on thehighway and only one lane was open for several hours.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Minidoka County6 NW Minidoka 26 1935MST1945MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)The Minidoka mesonet site measured a 60 mph wind gust.Severe thunderstorms occurred in Lincoln and Minidoka counties in the afternoon and evening periods. Note: The measuredwind gust of 52 knots is equivalent to 60 mph.117

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IDAHO, SoutheastIDZ020Upper Snake River Plain27311400MST1000MST 0 0 0.00K 0.00K WildfireA 700 acre wildfire began on August 27th about 10 miles south of Arco in the lava fields burning grass and brush. Noproperty was threatened by the blaze.IDZ025Wasatch Mountains/Idaho Portion28311300MST1000MST 0 0 500.0K 0.00K WildfireA fire started by lightning on August 28th grew to 420 acres and destroyed 2 homes about 20 miles west of Montpelier.IDZ022South Central Highlands29311100MST2000MST 0 0 0.00K 0.00K WildfireThe Connor Creek wildfire began at around noon on August 29th about 2 miles east of Elba. The fire grew to 2,000 acresbefore being contained. Numerous primary residences were within 1 mile of the fire but none were lost.Bingham County5 S Atomic City 31 1940MST1950MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)IDAHO, SouthwestA 58 mph wind gust was recorded in northeast Bingham County at a weather site at the Idaho National Laboratory.A 58 mph wind gust was recorded in northeast Bingham County at a weather site at the Idaho National Laboratory. Note: Themeasured wind gust of 50 knots is equivalent to 58 mph.Ada County11 S Boise 06 1700MST1740MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorms that moved across Ada County caused damage around the Boise area, including tree tops torn off, a large treesnapped at its base, and residential fences blown down.Thunderstorms developed across the Intermountain West on the 6th leading to wind damage in parts of Ada County inSouthwest Idaho. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jerome County2 SW Jerome 26 1805MST1810MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)KMVT television station reported a large tree was uprooted in Jerome, Idaho.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Twin Falls County5 SW Twin Falls 26 1810MST1820MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)KMVT television station reported numerous power outages and wind damage in Twin Falls, Idaho.Deep moisture and strong wind fields aloft led to active convection across South Central Idaho on the 26th. Thunderstorm winddamage was reported in the Magic Valley. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.118

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralILZ027>031-036>038-040>057-061>063-066>068-071>073Cass - Champaign - Christian - Clark - Clay - Coles - Crawford - Cumberland - De Witt - Douglas - Edgar- Effingham - Fulton - Jasper - Knox - Lawrence - Logan - Macon - Marshall - Mason - Mclean - Menard -Morgan - Moultrie - Peoria - Piatt - Richland - Sangamon - Schuyler - Scott - Shelby - Stark - Tazewell -Vermilion - Woodford01310000CST2359CST 0 0 0.00K 0.00K DroughtAn extended period of dry weather continued to worsen across central and southeast Illinois during the month of August.Despite near normal monthly rainfall totals of 3 to 4 inches in many locations...yearly deficits since January 1st remained in the8 to 13 inch range. The prolonged period of dry weather caused nearly all of central and southeast Illinois to be upgraded to theExtreme Drought Category (D3)...while Lawrence and Crawford counties in southeast Illinois persisted in an ExceptionalDrought (D4).Stark CountyToulon 04 1314CST1319CST 0 0 2.00K 0.00K Thunderstorm Wind (56EG)A three-foot diameter tree was blown down in Toulon.An approaching cold front triggered scattered thunderstorms across north-central Illinois during the afternoon of August 4th. Afew of the storms produced damaging wind gusts of 60 to 70 mph, resulting in minor wind damage in Stark County. Note: Theestimated wind gust of 56 knots is equivalent to 64 mph.Douglas County2 SW Tuscola 08 1545CST1546CST 0 0 0.00K 0.00K Hail (1.00)Clay CountyFlora 08 1618CST1623CST 0 0 4.00K 0.00K Thunderstorm Wind (61EG)A large tree was blown down onto a deck.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay CountyClay City 08 1633CST1638CST 0 0 18.00K 0.00K Thunderstorm Wind (61EG)Several trees and tree limbs were blown down. Power lines were also knocked down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay CountyClay City 08 1633CST1638CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)The roof of a building was blown off at the corner of 5th and Walnut Street in Clay City. The roof of a trailer was also blownoff, and a tree was knocked down onto a house.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay CountyFlora 08 1747CST1752CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)A 13-inch diameter tree was blown down on the 700 block of West 12th Street.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay CountyFlora 08 1800CST1801CST 0 0 5.00K 0.00K LightningLightning struck Highway 50 in Flora, creating a hole 12 inches wide and 6 inches deep.An upper-level disturbance tracking eastward out of Missouri triggered scattered strong to severe thunderstorms across portionsof east-central and southeast Illinois during the afternoon and early evening of August 8th. One cell dropped quarter-sized hailin Douglas County, while other storms produced wind damage across Clay County.119

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralPeoria CountyMossville 09 1405CST1410CST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)A 12-inch diameter tree was blown down, bringing a power line down with it. A road was blocked by the tree.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Marshall CountyToluca 09 1435CST1436CST 0 0 0.00K 0.00K Hail (1.00)Marshall CountyWenona 09 1435CST1436CST 0 0 0.00K 0.00K Hail (1.00)Marshall CountyToluca 09 1435CST1440CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Numerous trees and power lines were blown down in Toluca.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mclean CountyDanvers 09 1506CST1508CST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)Numerous trees and tree branches were blown down in Danvers.Mclean CountyDanvers7 W (BMI)Bloomngtn/normaNote: The estimated wind gust of 70 knots is equivalent to 81 mph.09 1508CST1520CST 0 1 3.50M 0.00K Thunderstorm Wind (70EG)Downburst winds of 70 to 80 mph produced a wide swath of damage from Danvers southeastward into the southwest side ofBloomington. One of the hardest hit locations along this path was the Apollo Acres subdivision just north of Illinois Route 9,where 159 homes sustained damage. 139 of those homes had awnings or shingles damaged, while 19 suffered minor roof andwindow damage, and 1 home had one-third of its roof torn off. Total damage in Apollo Acres was around $1 million. Othersignificant damage occurred along the path of the storm, including numerous downed trees, trailers blown over, and severallarge metal buildings with doors blown in and roofs torn off. Total damage to 30 businesses along the path was estimated ataround $2.5 million. One minor injury was reported, as a car was hit by a wind-blown trailer.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Mclean County3 SW Bloomington 09 1525CST1526CST 0 0 0.00K 0.00K Hail (1.00)Mclean County1 SSE Twin Grove 09 1525CST1526CST 0 0 0.00K 0.00K Hail (1.50)Mclean County3 SW Bloomington 09 1527CST1528CST 0 0 0.00K 0.00K Hail (0.88)Mclean County1 N Heyworth 09 1535CST1536CST 0 0 0.00K Hail (1.50)Hail damaged crops along a 1.5 mile-long/50 yards-wide swath just north of Heyworth.120

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralChampaign County2 SW Champaign 09 1645CST1650CST 0 0 60.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm winds produced damage across a 2 square mile area on the west and southwest side of Champaign.Numerous tree branches and power lines were blown down, creating a power outage for several hours. The damage wasbounded by Springfield Avenue on the north, Prospect Avenue on the east, Windsor Avenue on the south, and Duncan Road onthe west.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign County3 N Philo 09 1700CST1701CST 0 0 0.00K 0.00K Hail (0.75)Champaign County1 N Block 09 1705CST1710CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)Ten train cars were derailed by strong winds about 3 miles south of Sidney.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign CountySidney 09 1706CST1711CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)Numerous tree branches were blown down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign County1 N Sidney 09 1706CST1711CST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)A tree branch was blown onto a vehicle on County Road 1100 North about 1.5 miles north of Sidney.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign County1 S Sidney 09 1706CST1711CST 0 0 15.00K 35.00K Thunderstorm Wind (61EG)A few trees were topped and several power lines were blown down just south of Sidney. In addition, a corn field was flattened.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign CountyPhilo 09 1707CST1715CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Several tree limbs were blown down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Champaign CountyBroadlands 09 1715CST1720CST 0 0 350.00K 0.00K Thunderstorm Wind (61EG)Numerous trees and tree branches were blown down. Roof damage was reported to 29 structures. A garage was destroyed andseveral machine sheds were severely damaged or destroyed. In addition, a grain silo was damaged.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Edgar CountyHume 09 1733CST1738CST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)Three power poles were snapped and several tree branches were blown down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.121

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralEdgar CountyMetcalf 09 1735CST1740CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)Three large trees were blown down.A vigorous upper-level disturbance interacting with an approaching cold front triggered scattered severe thunderstorms acrossnorth-central Illinois during the afternoon and early evening of August 9th. Most of the storms impacted locations along andnorth of a Peoria...to Bloomington...to Paris line. Downburst winds of 70 to 80 mph produced extensive damage acrossMcLean County from near Danvers to just north of Heyworth. Other cells produced widespread wind damage acrossChampaign and Edgar counties. In addition to the wind damage, large hail up to the size of half dollars was reported north ofHeyworth in McLean County. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Woodford County2 WNW Metamora 16 0716CST0717CST 0 0 0.00K 0.00K Hail (0.75)Fulton CountyFarmington 16 0955CST0956CST 0 0 0.00K 0.00K Hail (1.00)Champaign CountySt Joseph 16 1250CST1255CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Several 5 to 6-inch diameter tree branches were blown down at the high school.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sangamon CountyPawnee 16 1345CST1350CST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)Two power poles were snapped along 4th Street in Pawnee.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Christian County2 N Taylorville 16 1400CST1401CST 0 0 0.00K 0.00K Hail (1.00)Shelby CountyTower Hill 16 1420CST1425CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)A 3-foot diameter tree was uprooted.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Christian CountyPana 16 1432CST1437CST 0 0 30.00K 0.00K Thunderstorm Wind (70EG)Numerous 12 to 18-inch diameter trees were blown down. Power lines were knocked down as well.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Shelby CountyWindsor 16 1436CST1441CST 0 0 8.00K 0.00K Thunderstorm Wind (70EG)A 2-foot diameter tree was blown down. Numerous tree branches were knocked down as well, many of which blocked roads.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.122

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralShelby CountyWindsor 16 1436CST1441CST 0 0 3.20M 0.00K Thunderstorm Wind (80EG)Hundreds of trees were uprooted in the town of Windsor. Several trees and large branches damaged about 200 house roofs intown. The strong wind also blew shingles off of many houses. One house on the west side of town was pushed several inchesoff of its foundation. Power poles snapped, power lines were knocked down and a few flag poles were bent.Note: The estimated wind gust of 80 knots is equivalent to 92 mph.Shelby CountyWindsor 16 1440CST1445CST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)Several power poles and power lines were blown down. The siding was torn off a trailer.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Moultrie County1 ENE Gays 16 1445CST1450CST 0 0 24.00K 0.00K Thunderstorm Wind (70EG)Several trees were blown down about 1 mile east of Gays.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Moultrie CountyGays 16 1445CST1450CST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)A gabled roof of a church was torn off. Numerous trees and tree branches were blown down across town.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Coles CountyMattoon 16 1450CST1455CST 0 0 65.00K 0.00K Thunderstorm Wind (70EG)Numerous trees and power poles were blown down across Mattoon. Electricity was knocked out to many residents for about 2hours. Power lines were blown down and blocked Lake Mattoon Road.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Coles County2 W Mattoon 16 1455CST1500CST 0 2 40.00K 100.00K Thunderstorm Wind (70EG)Numerous trees were blown down and a few power poles were snapped along Route 16 west of Mattoon. Two people wereinjured when they were hit by falling tree branches as they were trying to take shelter from the storm. A semi and trailer wereblown over on Route 16 2 miles west of Mattoon. Many corn fields sustained wind damage as well.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Coles CountyCharleston 16 1500CST1505CST 0 0 30.00K 0.00K Thunderstorm Wind (70EG)Several tree limbs were blown down across Charleston. A power pole was knocked down as well.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Coles CountyLerna 16 1500CST1505CST 0 0 35.00K 0.00K Thunderstorm Wind (70EG)Numerous trees and power lines were blown down in Lerna.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.123

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralCumberland CountyNeogaHazel Dell16 1505CST1516CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)Numerous trees and tree branches were blown down across Cumberland County. Large branches were knocked down onto 3houses in Janesville. Power lines were blown down, resulting in a power outage in Greenup.Effingham CountyBeecher CityElliottstownNote: The estimated wind gust of 70 knots is equivalent to 81 mph.16 1508CST1530CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)Several trees were blown down in various locations across Effingham County.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clark CountyMartinsville 16 1520CST1525CST 0 0 40.00K 0.00K Thunderstorm Wind (61EG)Numerous trees were blown down, including a 20-inch diameter tree that fell onto power lines. Power was knocked outthroughout Martinsville.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay County1 NW Oskaloosa 16 1530CST1535CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)A tree was blown down about 1 mile northwest of Oskaloosa near the Clay and Marion County line.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Jasper County1 SW Latona 16 1535CST1536CST 0 0 0.00K 0.00K Hail (1.00)Jasper County1 S Wheeler 16 1535CST1536CST 0 0 0.00K 0.00K Hail (1.00)Jasper CountyNewton 16 1535CST1540CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)Numerous tree branches and power lines were blown down in Newton.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Crawford CountyRobinson 16 1545CST1550CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Several trees were blown down in Robinson.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clay County1 W Louisville 16 1550CST1555CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)A tree was blown down about 1 mile west of Louisville.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.124

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, CentralClay CountyFlora 16 1555CST1600CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)A tree was blown down in Flora, and another was knocked down about 1 mile northwest of town.A vigorous upper-level disturbance in conjunction with an approaching cold front triggered periods of showers andthunderstorms across central Illinois on August 16th. A few storms produced marginally severe hail during the morning acrossnorth-central Illinois. As the atmosphere destabilized further, severe thunderstorms developed along the cold front during theafternoon...mainly impacting locations along and east of a Champaign-Urbana to Taylorville line. Wind gusts of 70 to 90 mphproduced widespread damage across portions of Christian...Shelby...Moultrie...and Coles counties. The town of Windsor inShelby County was hardest hit, with more than $3 Million in damage. Note: The estimated wind gust of 61 knots is equivalentto 70 mph.Fulton CountyAstoria 26 1520CST1525CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Numerous trees and tree branches were blown down in Astoria. In addition, two light-weight open-ended vehicle shelters wereflipped.An approaching cold front triggered scattered thunderstorms across central Illinois during the afternoon of August 26th. One ofthe cells produced damaging wind gusts in Astoria in Fulton County. Showers and thunderstorms continued into the eveninghours, producing 2 to 3 inches of rain along and north of the I-74 corridor. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Morgan County1 SE Franklin 31 1612CST1613CST 0.25 75 0 1 230.00K 0.00K Tornado (EF1)A tornado touched down about 0.8 miles south of Franklin at 5:12 PM CDT, then tracked north-northwest before lifting 0.5miles south of Franklin at 5:13 PM CDT. The tornado destroyed an auto shop and damaged the roof of a house on the southside of Franklin. A mobile home was rolled off its foundation onto Illinois Route 104, injuring one person inside. Several treeswere blown down and numerous tree branches were knocked down as well.Morgan County1 NE Rees Station 31 1632CST1633CST 0.16 10 0 0 0.00K 0.00K Tornado (EF0)ILLINOIS, NortheastA tornado briefly touched down in a field about 3 miles northwest of Franklin at 5:32 PM CDT. No damage occurred.Remnants of Hurricane Isaac tracked northward into Missouri on August 31st, producing showers and and isolatedthunderstorms across west-central Illinois. One of the cells produced two brief tornado touch-downs near the town of Franklinin Morgan County. Tree and structural damage occurred on the south side of Franklin and one person was injured when hismobile home was damaged.Ogle CountyPolo 04 1330CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Tree limbs 6 to 8 inches in diameter were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Ogle CountyOregon 04 1350CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Numerous trees and power lines were blown down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.La Salle County1 S Utica 04 1356CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)One large tree was blown down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.125

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, NortheastWinnebago County5 SW Rockford 04 1408CST 0 0 0.00K 0.00K Thunderstorm Wind (65MG)Note: The measured wind gust of 65 knots is equivalent to 75 mph.La Salle CountyNorway 04 1411CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)A large tree was blown down along Route 71 near the small town of Norway.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Grundy County1 SW Morris 04 1414CST1415CST 0 0 1.50M 0.00K Thunderstorm Wind (60EG)An estimated 40 to 45 trees were blown down in Morris, including some that fell onto houses and cars. A 26 inch diameter treefell onto a house on Freemont Avenue. A 250 foot transmission tower along I-80 collapsed. A semi-truck parked at a rest stopwas toppled.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.De Kalb County3 W Waterman 04 1415CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)Note: The measured wind gust of 59 knots is equivalent to 68 mph.Kendall County1 ESE Newark Arpt5 ESE Plattville04 1415CST1420CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Several large trees were blown down across the southern part of Kendall County.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Grundy CountySouth Wilmington 04 1427CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Wind gusts were estimated to 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Kane County1 W Moecherville 04 1430CST 0 0 20.00K 0.00K LightningLightning struck an apartment complex on the 500 block of Hartford Avenue in North Aurora causing a small fire.Kendall County1 NNE Kentland 04 1430CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Several large pine trees were snapped along Caton Farm Road between Route 47 and Ashley Road.Kane County2 NE Aurora2 SW LovedaleNote: The estimated wind gust of 60 knots is equivalent to 69 mph.04 1431CST1436CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)Wind gusts were estimated to 70 mph in Aurora. A 14 inch diameter maple tree was blown down onto a garage. Part of a roofwas ripped off of an apartment complex with water causing damage to 96 units.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Will CountyNew Lenox 04 1448CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.126

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, NortheastKane CountyElgin 04 1449CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Kane County1 E Geneva 04 1450CST 0 2 0.00K 0.00K Thunderstorm Wind (52EG)Two injuries occurred when a wind gust estimated to near 60 mph slammed part of a picnic table into two people. One personwas struck in the head and knocked unconscious. Her injuries required a three-hour brain surgery. The other person injuredwas a minor, and no details were released.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Du Page County(DPA)Dupage Co Arpt 04 1452CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.Mchenry CountyHuntley 04 1452CST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)Note: The measured wind gust of 62 knots is equivalent to 71 mph.Kendall CountyYorkville 04 1455CST1700CST 0 0 0.00K 0.00K Flash FloodOne to two feet of water covered parts of Route 126 near Yorkville.Will County3 WSW Monee 04 1456CST 0 0 10.00K 0.00K LightningA barn caught fire due to a lightning strike near Harlem Avenue and Pauling Road.Will County3 W Monee 04 1456CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Several utility poles were blown over, nearly to the ground, but were not snapped, along Harlem Avenue, one mile south ofManhattan-Monee Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Cook County2 SW Palatine 04 1500CST1502CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported near Algonquin and Roselle Roads.Cook County2 ENE Sutton 04 1505CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Wind gusts were estimated to 70 mph near the intersection of Algonquin and Barrington Roads.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Cook CountyKimberly Hgts 04 1506CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Wind gusts were estimated to 80 mph near the Tinley Park Amphitheatre.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.127

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, NortheastCook County2 NNW Richton Park 04 1515CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Four inch diameter trees were snapped near Interstate 57 and Route 30. Other debris was reported in the road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cook County3 SW (MDW)Midway Arpt Chi 04 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Note: The measured wind gust of 52 knots is equivalent to 60 mph.Cook County1 NE Deering 04 1529CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Numerous large trees were snapped and uprooted in Lakeview.A line of severe thunderstorms moved across northern Illinois during the afternoon hours of August 4th. Note: The estimatedwind gust of 55 knots is equivalent to 63 mph.La Salle CountyRutland 09 1450CST1454CST 0 0 0.00K 0.00K Hail (1.00)Livingston County1 W Flanagan 09 1513CST1516CST 0 0 0.00K 0.00K Hail (1.00)Livingston County3 S Pontiac 09 1535CST1538CST 0 0 0.00K 0.00K Hail (1.00)Livingston CountyMunster 09 1550CST1600CST 0 0 0.00K 0.00K Hail (1.00)Livingston CountyMunster 09 1550CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Multiple trees were blown down on a farm.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Livingston County1 E Fairbury 09 1554CST1557CST 0 0 0.00K 0.00K Hail (1.00)Kankakee County1 W Manteno 09 1652CST1655CST 0 0 0.00K 0.00K Hail (0.88)Kankakee County1 SW Tallmadge 09 1726CST1729CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported near 2690 South Road and 13000 East Road.Iroquois County2 SW Milford 09 1830CST1833CST 0 0 0.00K 0.00K Hail (1.00)Pea to quarter size hail was reported at the Dollar General Store on South Axtel Street.During the late afternoon of August 9th, isolated severe thunderstorms developed over portions of east central Illinois mainlyproducing large hail.128

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, NortheastLake CountyLake Zurich 20 1230CST1231CST 0 0 0.00K 0.00K Hail (1.00)Grundy CountyMorris 20 1508CST1509CST 0 0 0.00K 0.00K Hail (0.75)Several isolated thunderstorms developed through the day on August 20th producing hail.Cook County2 E Clybourn 26271845CST0030CST 0 0 0.00K 0.00K Flash FloodHeavy rain fell across portions of the Chicago Metropolitan area causing rapid filling of underpasses, ramps, and numerousviaducts. Southbound lanes of Lake Shore Drive were closed between North and Grand Avenues. Several side streets hadwater up to car bumpers in Summit. Some of the rainfall reports across the area include 4.53 inches in North Riverside, 3.64inches near Oak Park, 3.25 inches in Berwyn, and 3.03 inches in Westchester.Du Page County1 NW Naperville 26271845CST0000CST 0 0 0.00K 0.00K FloodThree to four inches of standing water was reported on portions of Route 34 in Naperville. Nearby rainfall reports include 3.16inches in Lisle, and 3.05 inches in Oak Brook.During the evening of August 26th, torrential rain fell across portions of the Chicago Metropolitan area causing flash flooding.ILLINOIS, NorthwestWhiteside County1 N Albany 04 1257CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported tree limbs down that were approximately 3 inches in diameter. Heavy rain was falling at the time ofthe report.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Whiteside County2 NNE Garden Plain 04 1305CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Wind speeds were estimated and relayed via ESPOTTER.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Whiteside County2 W Ustick 04 1309CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A spotter estimated thunderstorm wind speeds of 60 to 70 mph bringing down 3 inch tree branches.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Whiteside County2 W Malvern 04 1310CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A public report of several large tree limbs down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Whiteside County1 SW Malvern 04 1315CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A report received via ESPOTTER estimated sustained thunderstorms wind speeds of 60 MPH and gusts over 70 MPH. A hugeoak tree was down along with numerous large tree limbs down estimated at approximately 4 to 6 inches.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.129

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, NorthwestCarroll County1 S Milledgeville 04 1325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The Emergency Manager estimated wind speeds of 40 to 60 MPH along with a report of two buildings down at theFairgrounds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Stephenson County3 S Lena 04 1325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Emergency Manager estimated winds speeds of 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Whiteside County1 E Sterling 04 1325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A few large diameter tree limbs down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carroll County1 NE Savanna 04 1345CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Emergency Manager reported power lines down across Carroll County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Stephenson County3 WNW Freeport 04 1349CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.Stephenson County1 NW Freeport 04 1357CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Chicago Avenue was reported closed due to an estimated 1 to 1.5 foot tree down across the road.A strong cold front moved into northwest Illinois during the early to mid afternoon hours on August 4th with a line of severethunderstorms moving into the area from eastern Iowa. This line of thunderstorms produced straight-line winds with gusts ashigh as 80 mph along and north of Interstate 80. In addition to the straight-line winds, these thunderstorms produced heavyrainfall; a trained spotter reported 2.05 inches near Council Hill, 1.30 inches near Fulton, 1.50 inches at Rock Falls in 30minutes. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.ILZ001-007-009-015>018-024>026-034>035Bureau - Carroll - Hancock - Henderson - Henry - Jo Daviess - McDonough - Mercer - Putnam - RockIsland - Stephenson - Warren - Whiteside07280000CST2359CST 0 0 0.00K 0.00K DroughtThe drought became extreme during the first week of August across all of west central and northwest Illinois as persistent highpressure remained centered just to the west. The persistent ridge of high pressure would shift westward during what remainedof the month of August, allowing near normal temperatures with slightly below normal precipitation to affect northwest andwest central Illinois and therefore an improvement of drought conditions beginning in the second week of August andcontinuing through the remainder of the month. Drought conditions would improve to Severe Drought for southern Rock Islandand Mercer Counties while it remained Extreme across the remainder of the area. By the fourth week in August, onlynorthwest Illinois north of Interstate 88 and Hancock and McDonough Counties in the south remained in Extreme Droughtwhile the rest of the area improved to Severe Drought.Warren County1 SW Alexis 16 0848CST 0 0 0.00K 0.00K Hail (0.88)A brief period of pea to nickel sized hail was reported.Showers and isolated thunderstorms swept through northwest Illinois along a cold front moving through the region on themorning of August 16, 2012. At 948 AM CDT a spotter reported pea to nickel sized hail from a storm near Henderson inWarren County.130

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, SouthILZ075>078-080>094Alexander - Edwards - Franklin - Gallatin - Hamilton - Hardin - Jackson - Jefferson - Johnson - Massac -Perry - Pope - Pulaski - Saline - Union - Wabash - Wayne - White - Williamson01310000CST2359CST 0 0 0.00K DroughtThe drought which began in May reached its most extreme stage by early August. Through the month of August, all ofsouthern Illinois was in extreme to exceptional drought. The exceptional drought conditions were south of a line from MountCarmel to Murphysboro. The remainder of southern Illinois was in extreme drought conditions. Soil moisture deficits remainedvery high. Throughout August, 80 to 100 percent of the region's topsoil and subsoil moisture was reported as short or veryshort. Many crops were heavily damaged, and numerous counties were declared natural disaster areas. Corn crops were apartial or complete loss. Soybeans were faring somewhat better. The percentage of pastures rated as poor or very poor heldsteady from July. Some small trees and shrubs were killed. Ponds across the region were dry or drying quickly. Even with theisolated rainfall from thunderstorms, fire danger remained high. Bans on outdoor burning were in place for numerous countiesin southern Illinois. Streamflows were running normal to below normal. At the Carbondale airport, 6.24 inches of rain fell inAugust, which was over 3 inches above normal. However, two inches of this rain fell on the last day of the month, which wastoo late to impact August drought conditions. The drought began in May and continued into September.Johnson County1 E Hollins Spur 01 1540CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Tree limbs were blown down near the Cache River State Natural Area.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Union County2 E Dongola 01 1630CST 0 0 40.00K 0.00K Thunderstorm Wind (52EG)Trees and power lines were blown down. A couple of homes were damaged.Jackson CountyMurphysboroCarbondaleIsolated thunderstorms developed during the heat of the afternoon. The storms increased along a residual front or wind shiftthat settled into the very unstable air mass across the region. A couple of multicellular storms produced severe downburstwinds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.04052330CST0045CST 0 0 0.00K 0.00K Heavy RainOver two inches of rain fell in about an hour. Some minor flooding of roads was reported.Thunderstorms with torrential rain occurred ahead of a cold front that extended from the Great Lakes region across the St.Louis area to the Ozark Mountains.Jackson CountyGorham 16 1430CST 0 0 0.00K 0.00K Hail (2.50)ILLINOIS, SouthwestHail was just slightly smaller than baseballs.An isolated severe thunderstorm developed in the heat of the afternoon. The storm formed ahead of a weak cold front thatextended from central Illinois southwest across Missouri.ILZ079-100>102Madison - Monroe - Randolph - St. Clair01 0000CST2200CST 0 0 0.00K 0.00K Excessive HeatA two-day heat wave continued from July 31 to August 1. High temperatures ranged from 100 - 105 with the Heat Indexaround 105.ILZ058>060-064>065-069>070-074-079-095>102Adams - Bond - Brown - Calhoun - Clinton - Fayette - Greene - Jersey - Macoupin - Madison - Marion -Monroe - Montgomery - Pike - Randolph - St. Clair - Washington01310000CST2359CST 0 0 DroughtExtreme Drought (D3) conditions continued across Illinois through the month.131

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, SouthwestMonroe County2 NNW Burksville 04 0420CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew a 24 foot camper into a propane tank along Jj Road south of Waterloo.Randolph CountyRuma2 S EvansvilleMontgomery CountyNokomisIrvingScattered showers and thunderstorms developed north of a warm front. Some of the storms produced damaging winds. Note:The estimated wind gust of 56 knots is equivalent to 64 mph.04 2226CST2228CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew down several large tree limbs and power lines between Ruma and Ellis Grove. Also, the windssnapped a power pole.Storms developed just ahead of a strong cold front. Several of the storms produced damaging winds. Note: The estimatedwind gust of 56 knots is equivalent to 64 mph.16 1426CST1428CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A line of severe storms moved southeast through Montgomery County. Numerous tree limbs and a few power lines were blowndown in Nokomis and Irving.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Madison CountyMarine 16 1444CST1445CST 0 0 0.00K 0.00K Hail (1.75)Bond CountyMulberry Grove 16 1509CST 0 0 0.00K 0.00K Hail (0.88)St. Clair County1 S Fairview Hgts1 SE Willard16 1510CST1515CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew down several large tree limbs as well as a couple of power lines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fayette CountyShobonier 16 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew down several large trees around Shobonier.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Marion County1 SE Fairman 16 1524CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew down a large tree limb onto a power line.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Marion County2 ENE Walnut Hill 16 1605CST 0 0 0.00K 0.00K Hail (0.88)Clinton County1 S Hoffman 16 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew down several large trees just south of Hoffman.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.132

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ILLINOIS, SouthwestMarion CountyCentralia2 ENE Walnut Hill16 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Thunderstorm winds blew down numerous large tree limbs. One tree was blown down blocking a side road in Centralia.A strong cold front moved through the region, triggering showers and thunderstorms. Some of the storms produced large hailand damaging winds. Note: The measured wind gust of 50 knots is equivalent to 58 mph.Madison County1 NW St Thomas 31 1350CST1351CST 0.2 50 0 0Tornado (EF0)A tornado briefly touched down on the north end of Chouteau Island...north of Interstate 270. No damage was reported.Greene County1 SSE Carrollton 31 1427CST1430CST 1.44 60 0 0 0.00KTornado (EF0)The tornado first touched down about 200 yards south of County Road 1150, about 80 yards west of U.S. Highway 67,damaging a four car garage. The roof of the garage was mostly removed from the structure with some small sections of theroof displaced a quarter of a mile to the north in an open field. The tornado travelled to the north over County Road 1150 andsnapped some medium sized tree limbs. One power pole was snapped in this area. Also, a medium size storage unit wasdamaged with pieces of the storage unit displaced over 100 yards to the north. The tornado moved north nearly parallel to 6thStreet where small and large tree limbs were snapped. Several witnesses including the local street department observed thetornado as it entered and moved through a residential area west of downtown Carrollton. One home near the southern part ofthe residential area sustained minor roof damage with shingles removed from the roof. The tornado crossed Illinois Route 108just west of U.S. Highway 67 before lifting and dissipating. Mainly small to medium tree limbs were blown down as thetornado travelled north through this area. The path length of the tornado was approximately 1.44 miles and had a damage widthwhich varied between 40 and 60 yards. The damage was rated EF0.With the remnant low of the Hurricane Isaac centered over southwestern Missouri, numerous showers and thunderstormsdeveloped and rotated cyclonically around the remnant low. A few of the thunderstorms produced brief spinup tornadoes.INDIANA, CentralINZ021-028>031-035>049-051>057-060>065-067>072Bartholomew - Boone - Brown - Carroll - Clay - Clinton - Daviess - Decatur - Delaware - Fountain -Greene - Hamilton - Hancock - Hendricks - Henry - Howard - Jackson - Jennings - Johnson - Knox -Lawrence - Madison - Marion - Martin - Monroe - Montgomery - Morgan - Owen - Parke - Putnam -Randolph - Rush - Shelby - Sullivan - Tippecanoe - Tipton - Vermillion - Vigo - Warren01310000EST2359EST 0 0 DroughtDrought conditions began to relent during August following beneficial rains and cooler temperatures. Temperatures duringAugust averaged near normal and rainfall was above normal in many of the very dry areas of June and July.The historic heat wave of 2012 finally broke in central and southern Indiana on the 8th. A strong cold front ushered in muchcooler weather. The cool weather persisted through the 22nd. This was the longest stretch of normal to below normaltemperatures for central Indiana since February 2010. Seasonal temperatures returned after the 22nd.The rainfall pattern changed dramatically from July to August. Some very dry areas of west central received over 10 inches ofrain, while some wet areas of south central and southeast Indiana measured less than 2 inches during the month. The big winneron rainfall during August was much of west central and southwest Indiana where extreme to exceptional drought conditionsprevailed.Drought conditions during the month improved in most sections of central and northern Indiana, but remained nearly the sameor deteriorated in southern Indiana. Severe drought conditions prevailed in much of the state along or south of I-70 at the end ofAugust. Although local area reservoirs remained below capacity, stream flow returned to normal in several areas of centralIndiana, especially in the Indianapolis area. Near to record low levels continued in the East Fork White River Basin of eastcentral and southern Indiana.133

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralMarion CountyInd Eagle Creek Arpt 04 1325EST 0 0 Thunderstorm Wind (55MG)A thunderstorm wind gust of 63 mph was measured by the ASOS at Eagle Creek Airport.Note: The measured wind gust of 55 knots is equivalent to 63 mph.Marion County3 WNW Oaklandon 04 1405EST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)A healthy tree about 50 feet tall and 16 to 18 inches in diameter was downed across a road and partially on to a pickup truckdue to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tipton County1 E Tipton 04 1820EST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)A tree was downed on a home in Tipton due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hancock County3 SSW Willow Branch 04 1850EST 0 0 2.00K Thunderstorm Wind (52EG)Tree limbs were downed as well as a tree downed across a road near the intersection of County Roads 400 North and 525 Eastdue to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tipton County2 E Goldsmith 04 1850EST 0 0 20.00K Thunderstorm Wind (65EG)Two outbuildings were damaged, with one of the two being destroyed, due to damaging thunderstorm wind gusts. Moderatedamage also occurred to a home.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Randolph County1 N Parker City 04 1900EST1902EST 0 0 Hail (1.00)Nickel to quarter sized hail was observed in this location.Randolph County1 N Parker City 04 1902EST 0 0 Thunderstorm Wind (52EG)An estimated 60 mph thunderstorm wind gust was observed in Parker City.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Delaware County2 WNW Eaton 04 1905EST 0 0 2.00K Thunderstorm Wind (52EG)A maple tree was snapped off eight feet above the ground due to damaging thunderstorm wind gusts. Trees also sustained treelimb damage.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tipton County1 WNW Windfall 04 1906EST2100EST 0 0 0.50K 0.50K FloodState Road 213 and County Road 400 North have flooding of unknown depth due to thunderstorm heavy rainfall.Henry County2 NNW Greensboro 04 1910EST 0 0 5.00K Thunderstorm Wind (56EG)Trees were reported down near Kennard due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.134

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralTippecanoe County2 ENE Romney 09 1907EST 0 0 6.00K Thunderstorm Wind (56EG)Trees were down on power lines in this location due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Montgomery CountyLadoga 09 1909EST1911EST 0 0 Hail (1.75)Tippecanoe CountyRomney 09 1910EST1912EST 0 0 Hail (1.25)Hail accumulated to 1.5 inches deep.Tippecanoe County1 W Dayton 09 1924EST 0 0 9.00K Thunderstorm Wind (56EG)Trees and tree limbs were downed due to damaging thunderstorm wind gusts. One tree was on a garage.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Hendricks County1 SSE North Salem 09 1932EST1934EST 0 0 0.00K 0.00K Hail (0.75)Carroll County2 S Owasco 09 1950EST 0 0 1.50K Thunderstorm Wind (52EG)Tree limbs, two to three inches in diameter, and power lines were downed along County Road 700 South due to damagingthunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hendricks County1 NNW Plainfield 09 1958EST2000EST 0 0 0.00K Hail (1.00)Many small limbs were reported down as well, with rainfall measuring 1.01 inches in 30 minutes.Carroll County1 NNE Flora 09 2003EST2005EST 0 0 Hail (1.00)Carroll County1 NNE Flora 09 2005EST2007EST 0 0 Hail (2.00)Hendricks County1 W Plainfield 09 2005EST2007EST 0 0 5.00K 0.00K Hail (1.00)Quarter sized hail damaged shingles and shredded leaves.Carroll County1 NNE Flora 09 2005EST 0 0 Thunderstorm Wind (52EG)An estimated 60 mph thunderstorm wind gust was observed in this location, just north of Flora.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.137

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralCarroll County1 N Bringhurst 09 2005EST 0 0 Thunderstorm Wind (56EG)An estimated 65 mph thunderstorm wind gust was observed in Flora.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Hendricks County1 SE Cartersburg 09 2007EST2009EST 0 0 Hail (1.00)Hendricks County2 SE Plainfield 09 2007EST2023EST 0 0 Hail (1.00)Quarter size hail was observed at the Homewood Suites.Hendricks County2 W Plainfield 09 2007EST2017EST 0 0 Hail (1.50)The hail lasted nearly 10 minutes.Hendricks County2 W Plainfield 09 2009EST2011EST 0 0 Hail (1.00)Hendricks County1 ESE Avon 09 2010EST2012EST 0 0 Hail (1.00)Nickel to quarter sized hail was observed in this location.Hendricks County2 W Plainfield 09 2011EST2013EST 0 0 Hail (1.50)Hendricks County2 N Plainfield 09 2011EST2013EST 0 0 Hail (1.00)Carroll County1 NNE Ockley 09 2012EST2014EST 0 0 Hail (1.75)Hendricks County1 E Plainfield 09 2012EST2014EST 0 0 Hail (1.00)A thunderstorm wind gust of 50 mph was observed in this location as well.Hendricks County1 E Plainfield 09 2015EST2017EST 0 0 0.00K Hail (1.50)Carroll County1 ENE Camden 09 2016EST2019EST 0 0 0.00K 0.00K Hail (0.75)The hail fell for three minutes.138

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralHendricks County1 E Plainfield 09 2018EST2020EST 0 0 0.00K 0.00K Hail (0.75)Warren County1 SW Kramer 09 2024EST2026EST 0 0 Hail (2.00)Putnam County1 NE Pleasant Garden 09 2028EST 0 0 5.00K Thunderstorm Wind (56EG)Trees were reported down in Reelsville due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Fountain County1 S Attica 09 2034EST2036EST 0 0 Hail (1.75)Fountain County1 S Attica 09 2035EST2037EST 0 0 Hail (1.50)Marion CountyIndianapolis 09 2101EST 0 0 0.00K Thunderstorm Wind (52EG)An estimated 60 mph thunderstorm wind gust was observed in Indianapolis. Pea size hail was observed as well.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Shelby CountyShelbyville 09 2145EST 0 0 11.00K 0.00K Thunderstorm Wind (56EG)A tree was down on top of a car on West Broadway Street and a tree was also down on a house on North Street due todamaging thunderstorm wind gust.An area of low pressure moved along a cold front on August 9, bringing thunderstorms to the area. Some of the storms weresevere with damaging winds and large hail. Hail around 2 inches in diameter, approximately the size of a billiard ball, fell nearFlora in Carroll County. In addition to the hail and damaging winds, heavy rain fell. Some areas received around 2 inches.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Tippecanoe CountyLafayette 16 1025EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A tree was downed blocking both lanes of traffic near the 2300 block of North 25th Street due to damaging thunderstorm windgusts. A tree was also downed on Elmwood Avenue, blocking one lane of traffic.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tippecanoe County2 N Colburn 16 1028EST 0 0 1.00K Thunderstorm Wind (52EG)A tree was downed blocking County Road 1000 East, just south of State Route 25, due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tippecanoe CountyMonitor 16 1030EST 0 0 1.00K Thunderstorm Wind (52EG)A tree was downed blocking County Road 775 East, just south of State Route 26, due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.139

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralVigo County1 NE North Terre Haute 16 1610EST1612EST 0 0 0.00K Hail (0.75)Vigo County1 NE North Terre Haute 16 1616EST1618EST 0 0 0.00K Hail (1.75)Vigo County1 ENE Terre Haute 16 1622EST1624EST 0 0 0.00K Hail (1.00)Vigo County1 E Terre Haute 16 1625EST1627EST 0 0 0.00K 0.00K Hail (0.75)Owen County3 SE Vandalia 16 1635EST1637EST 0 0 0.50K 0.50K Hail (1.00)Water was also reported to be covering the road to unknown depth. They were able to drive through it fine.Greene CountyWorthington 16 1700EST 0 0 1.00K Thunderstorm Wind (52EG)A three foot diameter tree was downed due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sullivan County1 S Carlisle 16 1707EST 0 0 Thunderstorm Wind (52EG)An estimated 60 mph thunderstorm wind gust was observed in this location.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sullivan County1 E Paxton 16 1707EST 0 0 Thunderstorm Wind (52EG)An estimated 60 mph thunderstorm wind gust was observed in this location.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Knox County2 SSE Vincennes Oneal Arpt 16 1730EST 0 0 5.00K Thunderstorm Wind (56EG)Trees were reported down in this location due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Knox CountyJohnstown 16 1731EST 0 0 1.00K Thunderstorm Wind (52EG)A large tree was reported down on West 3rd Street due to damaging thunderstorm wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Knox County1 SW Monroe City 16 1740EST 0 0 2.00K Thunderstorm Wind (52EG)A tree was downed, along with power lines, near the intersection of 8th and Johnson Streets due to damaging thundersorm windgusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.140

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, CentralJackson County1 WNW Freetown 16 1840EST 0 0 6.00K Thunderstorm Wind (56EG)INDIANA, NortheastTrees and street signs were down in Freetown due to damaging thunderstorm wind gusts.Another cold front dropping southeast into central Indiana produced additional large hail, damaging winds, and heavy rainduring the late morning and afternoon of August 16th. Up to 2000 J/kg of CAPE was available as these storms pushed acrossthe area. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Starke County2 NW Bass Station 04 1538CST1539CST 0 0 0.00K 0.00K Hail (1.00)La Porte CountyWanatah 04 1557CST1558CST 0 0 0.00K 0.00K Hail (1.25)La Porte CountyWanatah 04 1557CST1558CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported power lines down along US 421, near Wanatah.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Starke County1 E Ober 04 1558CST1559CST 0 0 0.00K 0.00K Hail (1.00)La Porte County1 N La Porte 04 1610CST1611CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)The public reported two large trees were blown down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.La Porte CountyRolling Prairie 04 1620CST1621CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported trees and power lines down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.La Porte County1 S Rolling Prairie 04 1620CST1622CST 1.46 20 0 0 0.00K 0.00K Tornado (EF0)Emergency management officials, in coordination with NWS officials, indicated an area of damage associated with a line ofsevere thunderstorms, was consistent with an EF1 tornado near Rolling Prairie. Damage was first noted near the intersection ofState Route 2 and County Road 400 East, where a few trees fell onto power lines. As the circulation skipped along the ground,additional trees were blown down near the intersection of State Route 2 and County Road 450. The most substantial damageoccurred at a residence of the along the 4600 block of Oak Knoll Road. A south-east facing garage door failed, which allowedthe winds to enter the garage and blow out the north wall of the garage (DI: MDWH, DOD: 3.) The circulation also rolled anddestroyed an un-anchored shed at the same residence. A barn was also destroyed northeast of this residence before thecirculation lifted. The maximum width of the circulation was 20 yards. The maximum wind speed is estimated at between 85and 90 mph.La Porte County1 E Springville 04 1650CST1651CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported a small tree was blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.141

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, NortheastSt. Joseph County1 E (SBN)Michiana Arpt S 04 1703EST1704EST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)The automated weather observation system at the South Bend Regional Airport recorded a 66 mph wind gust.Note: The measured wind gust of 57 knots is equivalent to 66 mph.Marshall County1 SE Plymouth 04 1735EST1736EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported trees down throughout the county, including across US 31, south of US 30.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.St. Joseph County1 SE Mishawaka 04 1738EST1739EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An off duty NWS employee estimated a wind gust to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.St. Joseph County1 NNW (SBN)Michiana Arpt S 04 1738EST1739EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Local media estimated 60 to 70 mph wind gusts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.St. Joseph County1 W Glenwood 04 1743EST1744EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)The public reported portions of a corn field were flattened by strong winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Elkhart County3 W Elkhart 04 1748EST1749EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)The public reported large branches down near County Road 1.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Elkhart County1 E Elkhart 04 1750EST1751EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A trained spotter estimated a wind gust to 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Kosciusko County1 WNW Warsaw 04 1801EST1802EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Law enforcement officials reported numerous trees were blown down in Warsaw, Winona Lake and northern portions of thecounty.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Kosciusko County3 N North Webster 04 1813EST1814EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)NWS officials estimated wind gusts to 65 mph at the National Weather Service office, just north of North Webster.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.142

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, NortheastHuntington County2 WSW Andrews 04 1845EST1846EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported a tree was blown down near County Road 115 North and State Route 24.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Huntington County1 N Andrews 04 1847EST1848EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported a large tree was blown down on McKeever Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Huntington County3 WNW Huntington 04 1852EST1853EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported trees and power lines down near Rangeline Road and County Road 500 North.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Grant County1 SE Shady Hills 04 1855EST1856EST 0 0 0.00K 0.00K Hail (1.00)Grant CountyJonesboro 04 1857EST1858EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)The public estimated wind gusts to 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Allen County1 ENE Brookside Estates 04 1900EST1901EST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)A trained spotter recorded a 71 mph wind gust at the intersection of Maplecrest and Interstate 469.Note: The measured wind gust of 62 knots is equivalent to 71 mph.Huntington CountyWarren 04 1908EST1909EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported a large tree was blown down near the intersection of Wayne and Second streets.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Wells County1 NE Rockford 04 1910EST1911EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Law enforcement officials reported a large tree was blown down across the road near Rockford. In addition, large tree limbswere reported down on County Road 450 East and 100 North.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Adams CountyPreble 04 1929EST1930EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported large tree branches down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.143

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, NortheastJay CountyPortland 04 1929EST1930EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Law enforcement officials reported trees limbs and power lines down in Portland and Pennville.An unstable atmosphere was in place ahead of a strong cold front moving into the region from the west and a weak warm frontlocated across northwestern Indiana. These features combined with a high shear environment enhanced development ofthunderstorms across northern Illinois. The storms congealed into a QLCS which produced damaging winds, large hail and anisolated tornado. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Whitley County1 W South Whitley 09 1436EST1437EST 0 0 0.00K 0.00K Hail (1.25)Whitley County1 W South Whitley 09 1439EST1440EST 0 0 0.00K 0.00K Hail (1.25)Huntington County3 ENE Goblesville 09 1504EST1508EST 0 0 0.00K 0.00K Hail (0.75)A trained spotter reported four minutes of penny size hail near the intersection of County Roads 1200 North and 200 East.White County1 SW Wolcott 09 1938EST1939EST 0 0 0.00K 0.00K Hail (1.00)Wabash County1 E Urbana 09 2040EST2041EST 0 0 0.00K 0.00K Hail (1.00)Wabash County3 NE Lagro 09 2050EST2051EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated wind gusts to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Huntington County1 S Andrews 09 2104EST2105EST 0 0 0.00K 0.00K Hail (1.00)A trained spotter reported quarter size hail at the intersection of State Route 105 and Division Road.A frontal boundary was located across the southern Great Lakes. Extensive cloud cover north of the front prevented deepconvection. However, just south of the feature, isolated to scattered thunderstorms developed. Increasingly steep lapse ratesallowed for marginally severe hail to fall as well as locally gusty winds.INDIANA, NorthwestLake County1 ESE New Elliott 04 1523CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)A 25 foot tall tree, 14 inches in diameter fell on a house near the intersection of Route 30 and Burr Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Lake County(GYY)Gary Muni Arpt 04 1523CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.144

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, NorthwestLake County1 N Griffith 04 1544CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)Wind gusts to 70 mph were measured near Cline Avenue and Ridge Road.Note: The measured wind gust of 61 knots is equivalent to 70 mph.Porter CountyValparaiso Muni Arpt 04 1553CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.Porter CountyValparaiso 04 1557CST 0 0 25.00K 0.00K LightningTwo houses were set on fire after lightning strikes.Severe thunderstorms moved across parts of northwest Indiana during the afternoon hours of August 4th.Newton CountyMarocco 09 1752CST1754CST 0 0 0.00K 0.00K Hail (2.75)Golfball to baseball size hail was reported in Morocco.Newton County2 N Goodland 09 1818CST1821CST 0 0 0.00K 0.00K Hail (1.25)Hail ranged from quarter to half dollar size.Jasper County3 WNW Remington 09 1825CST1830CST 0 0 0.00K 0.00K Hail (1.75)Jasper County2 NNW Remington 09 1827CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Note: The measured wind gust of 52 knots is equivalent to 60 mph.Benton CountyTalbot 09 2002EST2005EST 0 0 0.00K 0.00K Hail (1.25)Quarter to half dollar size hail was reported.During the early evening of August 9th, isolated severe thunderstorms moved over portions of northwest Indiana mainlyproducing large hail.INZ011Jasper18 0500CST0700CST 0 0 0.00K 0.00K Dense SmokeDense smoke from a farm that was burning hay reduced visibility to less than 30 feet over portions of Interstate 65 near milemarker 227 leading to three separate collisions involving 20 cars between 6:00 AM CST and 6:18 AM CST. Four injuries andone fatality were reported. The first collision occurred on the northbound side when two semi-trailers wrecked causing a chainreaction involving a total of 12 vehicles. One passenger was killed and one was airlifted in serious condition. Less than half amile away in the southbound lanes, six vehicles were involved in an accident. A third accident occurred in the southboundlanes involving two cars. Three people were injured.145

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, South CentralScott CountyLexington 09 1449EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The Scott County emergency management reported several trees down near Lexington, Indiana.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jefferson County6 WSW Kent 09 1500EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)The Lexington, Kentucky broadcast media reported that thunderstorm winds toppled a tree onto a house just northeast ofLexington, Indiana.An outflow boundary left over from early morning convection stretched in an east west direction across southern Indiana, justnorth of and parallel to Interstate 64. A broken line of strong to marginally severe thunderstorms initiated along this boundaryduring the mid afternoon hours. Some of the strongest storms produced isolated wind damage before sagging southeast acrossthe Ohio River towards the Kentucky Bluegrass Region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Orange County2 NW Orleans 16 1815EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A spotter estimated that 50 to 60 mph winds downed numerous branches up to 2 inches in diameter.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dubois CountyHaysville 16 1825EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The Dubois County emergency manager reported a tree down across State Highway 231 near Hayesville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dubois CountyDubois 16 1830EST 0 0 0.00K Thunderstorm Wind (52EG)Several trees were downed in the town of Dubois. The local fire department estimated 60 mph winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Crawford County1 S Milltown 16 1848EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A spotter reported several large branches downed by estimated 60 mph winds.INDIANA, SoutheastWayne County1 NW Centerville1 SE ChesterA thin band of moderate instability developed across southern Indiana during the afternoon of August 16th. A broken line ofthunderstorms developed during the mid-afternoon hours across western Indiana. This quickly congealed into a lengthy squallline that brought widespread 45 to 50 mph winds to a broad area of southern Indiana. One section bowed out and broughtisolated damaging winds to several counties to the northwest of Louisville. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.05 0555EST0604EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down on College Corner Road and another tree along Interstate 70 near mile marker 153 due to damagingthunderstorm winds.Thunderstorms developed just ahead of a vigorous cold front across Indiana and West Central Ohio. Some of these stormsbecame severe. The main threat from these storms was damaging thunderstorm winds. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Ripley CountySunman 08 2110EST2114EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Two outbuildings were destroyed and a few trees were downed near Sunman due to thunderstorm winds.A weak front dropping southward across the Ohio Valley combined with unstable conditions to produce scatteredthunderstorms during the late afternoon through the late evening. The main threat from these storms was damagingthunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.146

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012INDIANA, SouthwestINZ081-085>088Gibson - Pike - Posey - Spencer - Vanderburgh - Warrick01310000CST2359CST 0 0 0.00K DroughtThe drought which began in May reached its most extreme stage by early August, then improved slightly. At the end of August,most of southwest Indiana was in extreme drought. Exceptional drought conditions were limited to the Lower Wabash Valleycounties of Gibson and Posey. Soil moisture deficits remained very high. Throughout August, 70 to 90 percent of the region'stopsoil and subsoil moisture was reported as short or very short. Many crops were heavily damaged, and numerous countieswere declared natural disaster areas. Corn crops were a partial or complete loss. Soybeans were faring somewhat better. Thepercentage of pastures rated as poor or very poor held steady from July. Ponds across the region were dry or drying quickly.Even with the isolated rainfall from thunderstorms, fire danger remained high. Bans on outdoor burning were in place fornumerous counties. Streamflows were running normal to below normal. At the Evansville airport, 4.10 inches of rain fell inAugust, which was over one inch above normal. For the year to date, 17.97 inches had fallen, which was 12.76 inches belownormal. The drought began in May and continued into September.Warrick CountyNewburgh 02 2045CST2200CST 0 0 0.00K 0.00K Heavy RainA trained spotter measured 1.5 inches of rain in 30 minutes. A foot of water was reported over a parking lot.Vanderburgh County(EVV)Dress Arpt EvanEvansville02 2100CST2200CST 0 0 0.00K 0.00K Heavy RainThe automated observing system at the Evansville airport measured 1.96 inches of rain in an hour.Strong thunderstorms produced very heavy rain that caused local flooding. The storms were organized into a mesoscaleconvective system (MCS) that tracked slowly southeast across southwest Indiana. The storms were fueled by a southwest windflow of very warm and humid air that averaged around 20 knots a few thousand feet above ground level. Precipitable watervalues near 2.3 inches supported torrential rainfall rates. The complex of storms formed along a warm front that extended fromsouthern Missouri across southern Illinois.Vanderburgh CountyEvansville 16 1805CST 0 0 0.00K 0.00K Heavy RainStreet flooding was reported on the east side of Evansville at Interstate 164 and Indiana Highway 66.Spencer CountyRockport 16 1808CST 0 0 3.00K 0.00K Thunderstorm Wind (51MG)Numerous tree limbs and branches were blown down. Many gusts were clocked around 58 mph.IOWA, CentralIAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-092>097A line of strong to severe thunderstorms produced heavy rain and an isolated report of damaging wind. The line of stormsoriginated along a cold front moving southeastward across Illinois and Missouri. Mid-level winds around 30 knots weresufficient to maintain organization of the convective system. Note: The measured wind gust of 51 knots is equivalent to 59mph.Adair - Adams - Appanoose - Audubon - Black Hawk - Boone - Bremer - Butler - Calhoun - Carroll - Cass- Cerro Gordo - Clarke - Crawford - Dallas - Davis - Decatur - Emmet - Franklin - Greene - Grundy -Guthrie - Hamilton - Hancock - Hardin - Humboldt - Jasper - Kossuth - Lucas - Madison - Mahaska -Marion - Marshall - Monroe - Palo Alto - Pocahontas - Polk - Poweshiek - Ringgold - Sac - Story - Tama -Taylor - Union - Wapello - Warren - Wayne - Webster - Winnebago - Worth - Wright01310000CST2350CST 0 0 0.00K 312.0M Drought147

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, CentralDrought conditions that began in late June continued through July and into August. Very warm and dry weather that began inthe spring continued through the summer. Temperatures warmed sharply the last few days of June. The heat persisted intoAugust. Temperatures for the month of August were cooler than July, and in fact, just above normal. For the three summermonths of June, July, and August, temperatures were among the top 10 warmest on record. Rainfall was in short supply acrossthe state. Much of the state recorded less than 50% of normal rainfall for the month, with a few locations under 25% of normal.The south quarter fared a little better with a few locations receiving close to normal rainfall for the month. In addition,extended periods of temperatures above 90 F combined with dewpoint temperatures falling into the 50s at times, resulted inadditional stress. The rapid deterioration of the corn and soybean crop that took place in July slowed as much of the damagehad already occurred in July. By the end of the month, officials estimated that 15% of the soybean crop and 20% of the corncrop yield had been lost to the drought. At the current price, the loss total was in excess of $2.6 billion. As of 31 August, theUSDA reported that Secretarial Primary Drought Designations had been listed for 42 of the counties in the Des Moines CWA,with the remaining 9 receiving Contiguous Designations. The drought conditions continued into September.Madison County4 WNW Barney 07 1415CST 0 0 35.00K 0.00K Thunderstorm Wind (75EG)A resident reported the siding was torn off of a house and outbuilding. Windows were also blown out of the house and powerwas out.A weak cold front dropped south across the state during the afternoon of the 7th. High temperatures reached the mid to upper90s, with surface dewpoint values in the upper 50s to mid 60s. CAPE increased to around 2000 J/kg, however the atmospherewas very weakly sheared with under 20 kts of effective shear available. There was considerable downdraft CAPE availablewith around 1800 J/kg present. A small area of thunderstorms developed during the heat of the afternoon. Many of themproduced brief heavy rain and gusty winds. One storm in Madison County produced an apparent microburst. It tore the sidingfrom a house east of Macksburg and also blew windows out of the house. Note: The estimated wind gust of 75 knots isequivalent to 86 mph.Carroll County1 NNW Maple River 08 1310CST 0 0 5.00K 10.00K Hail (1.25)Carroll County1 SW Mt Carmel 08 1327CST 0 0 0.00K 0.00K Hail (0.88)Carroll County2 E Breda 08 1328CST 0 0 2.00K 5.00K Hail (1.00)Greene County1 S Scranton 08 1339CST 0 0 1.00K 5.00K Hail (1.00)Greene County4 NE Cooper 08 1408CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Numerous trees down in Squirrel Hollow Park. Some damage to the park bridge with fallen trees.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Boone County2 SSE Beaver 08 1425CST 0 0 2.00K 10.00K Thunderstorm Wind (52EG)Estimated 60 MPH winds was accompanied by dime size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dallas County1 W Dallas Center 08 1437CST 0 0 0.00K 2.00K Hail (0.88)Only a brief period of hail.Dallas County1 SSE Shuler Mine 08 1450CST 0 0 3.00K 0.00K Hail (1.00)An off duty NWS employee reported quarter size hail in Waukee and also relayed that strong winds had blown down tents atthe Waukee Farmer's Market. High winds and hail resulted in damaged siding with holes punched through the siding.148

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, CentralPolk County1 NE Windsor Hgts 08 1453CST1553CST 0 0 0.00K 0.00K Heavy RainMeasured 1.69 inches of rain in less than an hour.Dallas County1 S Hadden Hill 08 1454CST 0 0 25.00K 0.00K Thunderstorm Wind (57EG)Twelve inch diameter trees were snapped at the base south of the intersection of Hickman and 156th St.Note: The estimated wind gust of 57 knots is equivalent to 66 mph.Polk County1 W Clover Hills 08 1455CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)Spotter estimated winds near 65 MPH.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Polk CountyUrbandale 08 1455CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Four inch diameter tree limbs down in the neighborhood around his residence.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk County1 NE Windsor Hgts 08 1456CST 0 0 2.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Polk County1 SE Ashawa 08 1457CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Numerous two inch diameter limbs down at the intersection of 68th and Douglas. Winds in excess of 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County1 N Clover Hills 08 1500CST1600CST 0 0 0.00K 0.00K Heavy RainRainfall of 1.81 inches in under an hour.Polk County1 SE Ashawa 08 1502CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)Winds estimated in excess of 70 MPH. Extremely heavy rain as well.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Polk County1 SW Des Moines 08 1502CST 0 0 10.00K 0.00K Thunderstorm Wind (56MG)Note: The measured wind gust of 56 knots is equivalent to 64 mph.Polk County1 NW Urbandale 08 1504CST 0 0 5.00K 0.00K Hail (1.00)Polk County1 SW Rider 08 1504CST 0 0 5.00K 0.00K Hail (1.00)Polk County2 E Des Moines 08 1506CST 0 0 10.00K 0.00K Hail (1.00)A trained spotter reported hail up to quarter size along with strong wind gusts. Multiple branches of 6 to 8 inch diameter weredowned. Minor hail damage to vehicles and standing water in low lying areas, caused by heavy rain.149

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, CentralPolk County1 SE Lovington 08 1506CST 0 0 20.00K 0.00K Thunderstorm Wind (57MG)Note: The measured wind gust of 57 knots is equivalent to 66 mph.Polk County1 SW Lovington 08 1509CST 0 0 3.00K 0.00K Hail (1.00)Polk County1 SW Lovington 08 1509CST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)High winds accompanied by quarter size hail.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Polk County1 S Capitol Hgts 08 1511CST 0 0 25.00K 0.00K Thunderstorm Wind (56EG)Winds in excess of 65 MPH around the State Fair Grounds.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Cerro Gordo County4 SW Burchinal 08 1630CST 0 0 3.00K 0.00K Thunderstorm Wind (57MG)Note: The measured wind gust of 57 knots is equivalent to 66 mph.Franklin County3 NNW Hansell 08 1725CST 0 0 3.00K 5.00K Hail (1.00)A cold front pushed into northwest Iowa during the afternoon of the 8th. Temperatures warmed in to the upper 80s to low 90s,with dewpoint readings in the mid to upper 60s during the afternoon. CAPE rose to 2000 to 2500 J/kg, though the atmospherewas weakly sheared with 25 kts of shear available. Downdraft CAPE was significant with around 1000 J/kg available. Thelifted index fell to between -6 to -9 C as moisture increased. By late afternoon the precipitable water value was around 1.6inches. The freezing level was around 13,500 feet, which was not conducive to hail given the weakly sheared environment.CAPE in the -10 to -30 C layer of the atmosphere was in the 500 to 700 J/kg range. An area of thunderstorms formed overwestern Iowa and advanced east across the state. An area from west central into central Iowa intensified. Hail up to half dollarsize was reported at several locations. Part of the line began to bow out and was able to take advantage of the DCAPE. Windsof 60 to 70 MPH moved through central Iowa, including the Des Moines metro area. Winds near 75 MPH swept into the westside of the Des Moines Metro area. The winds lasted from 10 to 20 minutes. Hail falling at the time caused damage to housesas the hail was driven through the siding of some of them. There were numerous reports of trees down and power outages. Atone point 7,000 to 10,000 customers were out of service. Heavy rainfall of nearly 2 inches in under an hour was reportedaround Des Moines. The heavy rain caused significant street flooding and caused many motorists to stall out. Thunderstormsformed over northern Iowa during the late afternoon in response to an upper level system. The storms produced wind gusts ashigh 66 MPH in the Mason City area. Quarter size hail was reported from one of the stronger cells in Franklin County.Butler CountyGreene 09 1740CST 0 0 0.00K 5.00K Hail (1.00)Butler County1 E Wilmar 09 1748CST 0 0 0.00K 5.00K Hail (1.00)Mostly small hail, but a few stones were up to the size of quarters.A secondary cold front dropped south into Iowa during the afternoon of the 9th. That in combination with a weak upper leveltrough of low pressure set off isolated thunderstorms over the eastern third of Iowa. CAPE was limited, around 1000 J/kg, withdowndraft CAPE around 700 J/kg. The freezing level was lower than it had been in the previous several weeks and was around12,000 feet. CAPE available in the -10 to -30 C layer of the atmosphere was around 200 J/kg. A thunderstorms developedover southeast Minnesota and dropped south into Butler County. The storm was pulsing as it entered into Butler County andproduced quarter size hail in the town of Greene with the track of quarter size hail extending down to just north of Allison. Thestorm weakened rapidly before reaching the town of Allison.Guthrie County6 NE Monteith 16 0205CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Numerous tree branches greater than 6 inches in diameter down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.150

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, CentralGuthrie County3 S Herndon 16 0211CST 0 0 3.00K 10.00K Hail (1.00)Dallas County1 SW Adel 16 0231CST 0 0 5.00K 10.00K Hail (1.25)Dallas County Emergency Management reported quarter to half dollar size hail falling in the Adel area along with 40 to 50MPH winds.Guthrie County1 SW Herndon 16 0232CST 0 0 0.00K 5.00K Hail (0.88)Reported at the intersection of Highway 4 and 141.Dallas County1 SSW Ortonville 16 0234CST 0 0 0.00K 5.00K Hail (1.00)Guthrie County1 E Bagley 16 0234CST 0 0 2.00K 5.00K Hail (1.00)Relayed by the Guthrie County Emergency Manager.Polk County1 SE Lovington 16 0245CST 0 0 2.00K 0.00K Thunderstorm Wind (54MG)Gusts of 59 and 62 MPH were measured by a home weather station in the Urbandale Cross Creek neighborhood.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Polk County1 SSW Dodge Fld Arpt 16 0250CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)One foot diameter tree down in the 8300 block of Barnham Dr. in Johnston. Lawn furniture and small pools blown around thecity. Report received from the Johnston Public Works Department.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mahaska County4 NNW Rose Hill 16 0535CST 0 0 0.00K 5.00K Hail (0.88)A strong cold front moved into Iowa during the afternoon and evening of the 15th into the morning hours of the 16th. Theatmosphere was somewhat capped initially, however thunderstorms were able to develop after midnight. The available CAPEwas in the 2000 to 3000 J/kg range. Downdraft CAPE was in the 800 to 1200 J/kg, with 700 J/kg available in the -10 to -30 Clayer of the atmosphere. The freezing level was quite high, in excess of 15,000 feet. Deep moisture convergence took placeduring the evening of the 15th with precipitable water values around 1.6 inches. The atmosphere was weakly sheared withabout 30 kts of effective shear present. The storms had strong cores present on radar, however the high freezing level and lackof tilt in the storms limited hail size. Hail up to ping pong ball size fell in Dallas County. Gusty winds of 45 to 55 MPH werereported across Guthrie, Dallas, and Polk Counties. A wind gust of 62 MPH was measured northwest of Des Moines in PolkCounty. Many of the storms produced winds in excess of 40 MPH. In addition to the wind, numerous reports of hail from peato nickel size were received.IOWA, East Central and SoutheastBenton County1 W Norway 04 1125CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A spotter estimated sustained winds of 40 mph with gusts of 60 to 70 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Johnson County1 E Williamstown 04 1125CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Trees were blown down and the windows were blown out at a residence. A grain bin is also reported to have been blown over.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.151

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, East Central and SoutheastBenton County1 W Norway 04 1128CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds were estimated at 60 to 65 mph. Heavy rain was falling at the time and was limiting visibility to a quarterof a mile or less.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Johnson County1 NE Oakdale 04 1135CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A 3 inch diameter tree branch was down on a home along with numerous other smaller branches down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Johnson County1 NE Oakdale 04 1135CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated to be between 50 and 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Johnson CountyCoralville 04 1136CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorms wind gusts were estimated between 50 and 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Linn County(CID)Cedar Rapids Ar 04 1138CST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)Note: The measured wind gust of 63 knots is equivalent to 72 mph.Linn County3 S Cedar Rapids 04 1140CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated thunderstorm wind speeds of 50 to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Linn County3 S Cedar Rapids 04 1145CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Reports that numerous tree limbs were down with some of them as large as three inches in diameter. The time of the event wasestimated from radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Linn County3 S Cedar Rapids 04 1147CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated thunderstorm wind gusts near 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Linn County(CID)Cedar Rapids Ar 04 1147CST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)Note: The measured wind gust of 63 knots is equivalent to 72 mph.Linn County2 ENE Hiawatha 04 1147CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A trained spotter estimated thunderstorm wind speeds of 60 to 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.152

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, East Central and SoutheastJohnson County1 N North Liberty 04 1148CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts were estimated between 60 and 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Johnson County1 N North Liberty 04 1148CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Thunderstorm wind gusts snapped an aluminum flag pole and damaged several trees.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Linn County3 SW Cedar Rapids 04 1148CST 0 0 0.00K 0.00K Thunderstorm Wind (64EG)Thunderstorm wind gusts knocked down 3 to 4 inch tree limbs. The wind gusts were estimated to be between 70 and 75 mph.Note: The estimated wind gust of 64 knots is equivalent to 74 mph.Linn County1 NW Ely 04 1148CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A public report estimated thunderstorm wind gusts between 60 and 70 mph. Heavy rain was helping to reduce visibility.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Linn County2 SSW Cedar Rapids 04 1155CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)A 12 inch tree was reported down.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Linn County2 SSW Cedar Rapids 04 1205CST 0 0 0.00K 0.00K Flash FloodReports were received that cars were floating on J Street in Cedar Rapids. The ASOS at Cedar Rapids reported 1.81 inches ofrain fell in 25 minutes.Clinton County1 E Dewitt 04 1212CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Trained spotter reported a 5 inch tree was down.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Cedar County1 SSW Clarence 04 1214CST 0 0 0.00K 0.00K Thunderstorm Wind (63EG)A report received via ESPOTTER estimated thunderstorm wind gusts around 72 mph.Note: The estimated wind gust of 63 knots is equivalent to 72 mph.Cedar County2 ENE Bennett 04 1214CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A trained spotter estimated thunderstorm wind gusts of 60 to 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Delaware County2 NW Buck Creek 04 1216CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)The Delaware County Sheriffs Office relayed a report from the Emergency Manager of thunderstorm wind gusts estimated tobe between 60 and 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.153

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, East Central and SoutheastCedar CountyTipton 04 1217CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A public report received via ESPOTTER estimated thunderstorm wind gusts near 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clinton County1 E Wheatland 04 1220CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Amateur radio reported a thunderstorm wind gust around 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Clinton County3 SSW Clinton Muni Arpt 04 1235CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Amateur radio relayed a report of a fruit tree down from thunderstorm winds.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Scott County1 NW Panorama Park 04 1245CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An off duty NWS employee reported several 3 to 4 inch tree branches down at Middle Road and 29th Street. Time of the eventwas estimated from radar.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Scott County2 NNW Davenport 04 1254CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Received a public report of thunderstorm wind gusts estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clinton County3 NNE Clinton 04 1301CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A trained spotter reported that an 18 to 24 inch tree was down across north 3rd Street in the City of Clinton.A strong cold front swept through eastern Iowa in the early afternoon of August 4th generating severe thunderstorms thatmoved along and to the north of Interstate 80. These thunderstorms produced strong straight-line winds as high as 75 mphacross this area. In addition to the strong straight-line winds these thunderstorms produced very heavy rainfall in a short periodof time; Vinton in Benton County received 1.28 inches of rain in 40 minutes, 1.60 inches was recorded at the Davenport ASOSin 15 minutes, 2.45 inches was reported by storm spotter in Princeton in 40 minutes, 1.80 inches in 25 minutes at the CedarRapids ASOS. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.IAZ040>042-051>054-063>068-076>078-087>089-098>099Benton - Buchanan - Cedar - Clinton - Delaware - Des Moines - Dubuque - Henry - Iowa - Jackson -Jefferson - Johnson - Jones - Keokuk - Lee - Linn - Louisa - Muscatine - Scott - Van Buren - Washington07280000CST2359CST 0 0 0.00K 0.00K DroughtThe drought became Extreme during the first week of August across all of eastern Iowa as persistent high pressure remainedcentered just to our west. The persistent ridge of high pressure would shift westward during the remainder of the month ofAugust, allowing for cooler air and some much need precipitation to affect portions of the region and therefore an improvementof drought conditions beginning in the second week of August and continuing through the remainder of the month.Precipitation across Iowa was a quarter to a half inch below normal for the month. Drought conditions improved slightly duringthe second week to Severe Drought between Highway 34 and Interstate 80 with Extreme Drought continuing to the north andsouth of this area. The area under Extreme Drought decreased by the fourth week in August covering only the areas south ofHighway 24, and along the Highway 20 corridor all other areas were in Severe Drought.Iowa CountyMarengo 09 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Emergency Manager reported multiple trees down in town.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.154

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, East Central and SoutheastIowa County4 W Conroy 09 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Emergency Manager reported multiple trees down in rural areas between the towns of Marengo and Williamsburg. Time of theevent was estimated using radar.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Iowa County1 W Williamsburg 09 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Emergency Manager reported that strong thunderstorm winds damaged power lines. Power was out at the mall. Time of theevent was estimated by radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jones County2 E Stone City 09 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Two large branches were down at a residence along with the soffit off of the house.A storm system moving southeastward across eastern Iowa sparked scattered showers and thunderstorms during the lateafternoon and early evening hours. Some of these thunderstorms became severe over Johnson and Jones Counties producingdamaging wind gusts over 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Iowa County1 W Williamsburg 16 0456CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Emergency Manager reported several large trees down in Williamsburg with the power out in half of the town. The time of theevent was estimated by radar.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Iowa County1 E Williamsburg 16 0456CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Ten evergreen trees were blown down by thunderstorm winds. Time of the event was estimated using an earlier report, but itmay have been from the first of two storms to impact this area around an hour earlier.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Iowa County1 E Williamsburg 16 0456CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)The public reported a wood and metal fence knocked over during a thunderstorm. Some of the posts were pulled completely outof the ground while others were broken off. A mobile home on the property was pushed over along with a pair of trailers on anadjacent lot. The garage door attached to the house was dented.A cold front moved through eastern Iowa during the early morning hours producing scattered showers and thunderstorms. Acouple of these thunderstorms became severe over Iowa County producing damaging wind gusts exceeding 60 mph nearWilliamsburg. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Johnson County1 WSW Amish 19 1653CST 0 0 0.00K 0.00K Hail (0.88)IOWA, NortheastA storm system that moved through region during the afternoon and evening on august 19, 2012 brought scattered showers andisolated thunderstorms to eastern Iowa. One of these storms produced penny to dime sized hail to Amish in Johnson County at553 PM CDT.IAZ008>011-018>019-029>030Allamakee - Chickasaw - Clayton - Fayette - Floyd - Howard - Mitchell - Winneshiek01310000CST2359CST 0 0 0.00K Drought155

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, NortheastPersistent below normal precipitation allowed severe drought conditions to continue across all of northeast Iowa. With thecontinued lack of precipitation portions of southern Clayton and Fayette Counties along with the southwest sections of FloydCounty deteriorated to extreme drought. Affects of the drought include damaged crops, pastures that have stopped growing,river flows that were less than 20 percent of normal, falling ground water levels and burning bans. In early August, the U.S.Dept. of Agriculture declared 42 counties in Iowa to be natural disasters areas. This included both Clayton and FayetteCounties. The U.S. Dept. of Agriculture also announced an expansion of emergency haying and grazing on conversation land tobring greater relief to livestock producers dealing with shortages of hay and pastureland. The State of Iowa also announced that6,000 acres of grasslands enrolled in the Wetland Reserve Program would be opened up to haying and grazing. Ethanolproducing plants across Iowa voluntarily slowed production as corn prices rose and supplies tightened. Production was cutabout 20 to 30 percent. The Iowa State Climatologist declared the 2012 drought worse than the 1988 event and the worst since1936 because this years drought has eclipsed 1988 for breadth and severity. The Iowa Dept. of Agriculture started requiring allmilk produced or received in the state to be tested for aflatoxin. Aflatoxin can sometimes be found in drought stressed corn,which when consumed by cows could pass into their milk. Alfatoxin is a concern because it is a known carcinogen and cancause damage to a person's liver.Howard CountyRiceville 04 0915CST 0 2 0.00K 0.00K LightningTwo young boys were injured when lightning struck a tree they were taking shelter under while fishing at the Lake Hendrickspark and campground near Riceville. One boy was listed in critical condition after being transferred to St. Marys hospital inRochester, Minnesota. The second boy only received minor injuries and was treated and released from a local hospital.Two young boys were injured when lightning struck a tree they were taking shelter under while fishing at Lake Hendricks nearRiceville (Howard County). One boy was seriously injured and transported to a Rochester, MN hospital. The other boy onlysustained minor injuries and was treated and released from a local hospital.Floyd CountyCharles City Arpt 08 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)The automated weather observing system at the Charles City airport measured a wind gust of 63 miles per hour.A line of thunderstorms produced a wind gust of 63 miles per hour at the Northeast Iowa Regional airport just outside ofCharles City (Floyd County) in the evening hours of August 8th. Note: The measured wind gust of 55 knots is equivalent to 63mph.Winneshiek County3 NE Haugendale 09 1550CST 0 0 10.00K 0.00K Hail (1.75)Hail ranging in size from quarters to golf ball was reported four miles east of Ridgeway. The large hail damaged a camper.Winneshiek County1 S Decorah Tatro Arpt 09 1550CST 0 0 0.00K 0.00K Hail (2.00)Hail the size of hen eggs was reported two miles west of Decorah.Winneshiek County1 E Conover 09 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)An estimated wind gust of 70 miles per hour occurred near the intersection of Conover Road and 195th Street northwest ofCalmar.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Winneshiek County2 NE Calmar 09 1605CST 0 0 10.00K 0.00K Hail (1.00)Hail up to the size of quarters fell two miles northeast of Calmar. The hail stripped corn of its leaves and created drifts in roadditches.Winneshiek County1 ENE Calmar 09 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)An estimated a wind gust of 70 miles per hour occurred just outside of Calmar.156

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, NortheastA line of thunderstorms along a cold front moved across northeast Iowa during the late afternoon hours on August 9th. Thethunderstorms produced hail up to hen egg size near Decorah (Winneshiek County) and wind gust of 70 miles per hour nearCalmar (Winneshiek County). Note: The estimated wind gust of 61 knots is equivalent to 70 mph.IOWA, NorthwestIAZ001>003-012>014-020>022-031>032Buena Vista - Cherokee - Clay - Dickinson - Ida - Lyon - O`Brien - Osceola - Plymouth - Sioux -Woodbury01310000CST2359CST 0 0 DroughtDrought conditions continued over all of the area with below normal rainfall keeping soil conditions dry. Stress on cropscontinued even though August was less hot than July, with temperatures averaging only a little above normal. Crop damagewas quite evident, though the amount of reduced yields and other damage which might become evident at harvest wasuncertain. While reported water supply problems were not extreme, many local governments had water use restrictions in place.Drought was generally listed as severe to extreme for the area.01 1100CST1800CST 0 0 0.00K 0.00K Excessive HeatIAZ012-020-031Plymouth - Sioux - Woodbury01 1100CST1800CST 0 0 0.00K 0.00K Excessive HeatTemperatures reaching the 90s and high humidity with dew points in the 70s caused excessive heat during the afternoon ofAugust 1st in part of northwest Iowa near the Big Sioux and Missouri Rivers.Sioux County1 NW Alton 08 1007CST 0 0 0.00K 0.00K Hail (0.75)A thunderstorm produced penny size hail at Alton in northwest Iowa in the late morning of August 8th.IOWA, SouthwestIAZ043-055-069-079>080-090>091Fremont - Harrison - Mills - Monona - Montgomery - Page - Pottawattamie - Shelby01310000CST2359CST 0 0 0.00K 0.00K DroughtThis drought carried over from July when record setting heat and dryness brought increasingly worse drought conditions to theregion into and beyond August. Rainfall which was already deficient for the season going into July, continued much belownormal in July. Although rainfall in August was spotty over southwest Iowa, many locations saw 3 to over 6 inches whichhelped keep the drought from intensifying too much. High temperatures consistently rose above 95 degrees during the first andlast weeks of August with some sites recording a few days above 100. The middle part of the month saw temperatures dip wellbelow normal, thus many average temperatures for August ended up close to normal. The persistent hot and dry weather keptmany rivers at very low flows and also caused some local wells to become dry or go to very low flow rates. The low riverlevels and irrigation pressure from underground water sources also caused some municipalities to institute voluntary ormandatory water restrictions. According to the U.S. Drought Monitor, drought intensities in southwest Iowa started August inthe Severe category and finished the month mostly in the Extreme category. The exception was far southwest Iowa whichremained in the Severe category due to some of the heavier rain totals observed there. The drought in Iowa and surroundingstates caused some crop prices, especially corn and soybeans, to reach record or near record levels in July with high pricescontinuing into August. According to the USDA, a little over 50 percent of the corn crop and 36 percent of the soybean cropwas considered poor or very poor in Iowa by the end of August. The drought continued into September.Pottawattamie County2 NW Ascot 07 2018CST 0 0 0.00K 0.00K Hail (1.25)The hail was reported near the Mormon Bridge on which I680 crosses the Missouri River into Iowa.157

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, SouthwestPottawattamie County4 W Grable 07 2030CST 0 0 Thunderstorm Wind (52EG)Thunderstorm wind gusts estimated at around 60 mph downed 4 power poles and flattened some crops in extreme westernPottawattamie county.Thunderstorms, a few severe with large hail and damaging winds, developed during the late afternoon and evening along aweak cool front that stretched from east central Nebraska into southwest Iowa. Instability was modestly high as temperaturesnear the front climbed to around 100 degrees with dew point temperatures in the low to mid 60s. However, deep wind shearand convergence near the boundary was weak which limited the overall coverage of the storms and any associated severeweather. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mills County3 SW Pacific City 08 1717CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds estimated at around 60 mph knocked down dead trees near the Missouri River.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fremont County1 S Tabor 08 1742CST 0 0 Thunderstorm Wind (52EG)Thunderstorm wind gusts estimated at 60 mph blew over a tree near the school in Tabor. The winds also caused some cropdamage and spotty power outages in the area.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fremont County1 E Anderson 08 1752CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Outflow gusts from thunderstorms were estimated to have reached 60 mph. The winds were accompanied by pea-size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fremont CountyFarragut 08 1800CST 0 0 0.00K 0.00K Hail (0.75)Penny-size hail was accompanied by thunderstorm wind gusts estimated at 65 mph.Fremont County1 W Farragut 08 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts estimated at around 65 mph downed tree limbs in the area. The winds were accompanied by pennysizehail.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Page County1 S Shenandoah 08 1802CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm wind gusts around 60 mph caused some tree damage and downed a few power lines in town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Page County2 NNE Blanchard 08 1826CST 0 0 Thunderstorm Wind (57EG)The public estimated that thunderstorm wind gusts of 60 to 70 mph downed a 6 inch diameter tree limb near Blanchard. Thewind was accompanied by dime-size hail.Scattered thunderstorms, a few severe, developed on a weak boundary in eastern Nebraska during the afternoon of August 8th.The boundary extended nearly north to south from east of Norfolk to east of Lincoln and Beatrice its position aided by earlierconvection that tracked across northeast Nebraska and western Iowa. Temperatures west of the boundary climbed to around100 degrees with west to northwest winds. Meanwhile, readings east of it were several degrees cooler with southeast winds.The storms were further strengthened by an upper level disturbance that tracked southeast out of South Dakota which pushed acool front south across the region. The storms developed along the north to south boundary in Nebraska and produced pocketsof strong winds and hail, some of it large, as they pushed into far southeast Nebraska and southwest Iowa. Note: The estimatedwind gust of 57 knots is equivalent to 66 mph.158

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012IOWA, SouthwestPottawattamie CountyLake Manawa 15 2304CST 0 0 0.00K 0.00K Hail (1.25)Mills County3 SW Pacific City 15 2324CST 0 0 0.00K 0.00K Hail (0.75)Monona County1 E Mapleton 16 0056CST 0 0 0.00K 0.00K Hail (1.00)Isolated severe thunderstorms developed on a cold front that pressed across eastern Nebraska and western Iowa during theevening of August 15th. The storms produced a few reports of large hail.KANSAS, EastKSZ008>012-020>024-026-034>040-054>056-058>059Anderson - Brown - Clay - Cloud - Coffey - Dickinson - Douglas - Franklin - Geary - Jackson - Jefferson -Lyon - Marshall - Morris - Nemaha - Osage - Ottawa - Pottawatomie - Republic - Riley - Shawnee -Wabaunsee - Washington01310000CST2359CST 0 0 DroughtHot and dry conditions continued across all of the central plains through the month of August. Drought monitor for the centralplains indicated that all of east central Kansas reached D4 (Exceptional Drought) conditions, while north central and farnortheast Kansas reached D2 to D3 (Severe to Extreme Drought). Conditions did improve toward the end of the month for alarge portion of northeast Kansas as a long period of moderate to heavy rain brought 3 to 5 inches of rain. This helped make upsome of the rainfall deficit, but did not fully allow the area to catch up to average rainfall totals.Washington CountyWashington 02 0130CST0135CST 0 0 Thunderstorm Wind (56EG)Multiple tree branches and powerlines were down in Washington.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Washington County1 NNE Hanover 02 0130CST0135CST 0 0 Thunderstorm Wind (56EG)Numerous tree limbs were broken from 65 mph winds near Hanover.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Marshall County1 S Marysville 02 0200CST0205CST 0 0 Thunderstorm Wind (52EG)Three inch tree branches down and power outages reported throughout Marshall County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pottawatomie County1 SE St George 02 0220CST0225CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)A 12 inch diameter tree was blown down in St. George.On August 2, 2012 scattered thunderstorms brought marginal severe weather to portions of northeast Kansas. Among thereports were areas of tree damage caused by 60 to 70 mph wind gusts. Note: The estimated wind gust of 56 knots is equivalentto 64 mph.Brown County3 ENE Padonia 08 1622CST1625CST 0 0 0.00K 0.00K Hail (0.88)159

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, EastBrown County1 W Hiawatha 08 1626CST1631CST 0 0 Thunderstorm Wind (52EG)A tree and some powerlines were reported down in Hiawatha.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Brown County3 S Sabetha 08 1630CST1635CST 0 0 Hail (1.25)Brown County1 ENE Fairview 08 1636CST1641CST 0 0 1.00K 0.00K Hail (1.25)Half dollar sized hail dented a car near Fairview.Douglas County1 S Eudora 08 1656CST1659CST 0 0 0.00K 0.00K Hail (0.88)Douglas County4 S Eudora 08 1701CST1706CST 0 0 0.00K 0.00K Hail (1.00)Brown County1 S Horton 08 1715CST1720CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Police removed a four inch diameter limb from street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Osage County1 E Maxon 08 1722CST1727CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A 3 inch tree limb was broken near Quenemo. Winds were estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jackson County4 ESE Delia 08 1740CST1745CST 0 0 5.00K Thunderstorm Wind (61EG)A 50 foot shed was destroyed. Shingles were blown off of a roof, and a few corn crops were blown down near Rossville inJackson County.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Shawnee County2 NNE Grove 08 1745CST1750CST 0 0 Thunderstorm Wind (61EG)Several 6 to 8 inch diameter tree limbs were reported broken.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Shawnee County1 SW Pauline 08 1816CST1821CST 0 0 0.00K 0.00K Hail (1.00)Shawnee CountyPauline1 N Berryton08 1819CST1825CST 0 1 100.00K 0.00K Thunderstorm Wind (69MG)160

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, EastA significant downburst occurred near Forbes Field in South Topeka causing damage and power outages. The ASOS at ForbesField measured a 79 mph wind gust while several residents and city officials also reported 70 to 80 mph winds. Several largetrees were either uprooted or broken, and several street signs were damaged from this wind. The most significant damageoccurred on US 75 where two tractor-trailers were overturned due to the high winds. Both big rigs struck other vehicles in theaccident. One of the drivers of the two overturned trucks had to be extricated from the vehicle and sustained serious injuries.Hot and dry conditions once again presented themselves across the central plains, which brought about a round of downburstthunderstorms across northeast Kansas. The most significant downburst took place near south Topeka, when 80 mph windscaused damage and overturned truck and trailer rigs on US 75 near Forbes Field. Note: The measured wind gust of 69 knots isequivalent to 79 mph.A large tree became uprooted at 53rd Street, a mile and a half east of Topeka Blvd.Geary County6 WNW Brant 25 1540CST1640CST 0 0 0.00K 0.00K Flash FloodTwo intersections along Old Highway 40 had running water flowing, as a result of heavy rain causing a nearby pond tooverflow. The intersections of Old Highway 40 and Milford Lake Road and Crider Road were impassible due to the water.On August 25, 2012 several rounds of moderate to heavy rain brought 3 to 5 inches of rain to portions of northeast Kansas. Dueto the dry conditions throughout the summer widespread flooding and flash flooding did not occur; however, one location nearJunction City along Old Highway 40 did have some running water flowing across two intersections due to a pond overflowing.KANSAS, Extreme SoutheastKSZ073-097-101Bourbon - Cherokee - Crawford01310000CST2359CST 0 0 0.00K 0.00K HeatA strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weatherpattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August andtemperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the monthof August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the themaximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 dayswhere the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of thearea for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively drycausing the heat index to be closer to the actual air temperatures.01310000CST2359CST 0 0 0.00K Drought161

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, Extreme SoutheastKSZ097-101Cherokee - Crawford01310000CST2359CST 0 0 0.00K DroughtA persistent upper level high pressure ridge over the central portions of the country caused more dry conditions for the area.Severe to exceptional drought remained in place across extreme southeastern Kansas. Some rainfall fell by the end of the monthfor portions of the area. For the counties of Bourbon, Crawford and Cherokee in southeastern Kansas, between 50 and 75percent of the combined corn, soybeans and hay acreage was reported as a loss due to the drought. The losses and damages toharvested yield were from the start of the planting season through the end of August.Cherokee County2 SSE Faulkner 04 1616CST 0 0 0.00K 0.00K Hail (0.88)Cherokee County1 W Crestline 04 1650CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)Emergency management reported approximately 20 power poles were blown down about one mile west of Crestline onHighway 160.A cold front moving across the area caused a cluster of strong to severe storms to develop across southeast Kansas whichproduced wind damage and sub-severe hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Crawford County1 S Hepler 08 1440CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)Several power poles were reported leaning over near Hepler.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Bourbon County4 S Petersburg 08 1900CST 0 0 5.00K 0.00K Hail (1.00)KANSAS, North CentralEmergency management estimated up to one inch in diameter hail stones combined with up to 70 mph winds severely damagedthe soybean crop in southern Bourbon County. No dollar amount in damages was determined due to the extreme droughtconditions that have already severely damaged this year's crop. A couple homes suffered minor roof and siding damage fromthe hail and damaging winds.A shortwave piece of upper level energy along with high instability developed several clusters of strong to severethunderstorms that produced isolated wind damage and severe hail.KSZ005>007-017>019Jewell - Mitchell - Osborne - Phillips - Rooks - Smith01310000CST2359CST 0 0 0.00K 0.00K DroughtDuring August 2012, rainfall was highly variable across this six-county area, with some places realizing below normal amountsof no more than 2 inches, while others managed to measure near normal to even above normal totals of at least 3-4. Some of thelowest monthly amounts per NWS cooperative observers including 0.56 near Long Island, 1.11 at Logan and 1.76 near Alton.On the wetter side of things were locations such as Webster Dam (4.59), near Plainville (3.93) and Beloit (3.59). However, overthe longer-range period from June 1st-August 15th rainfall totals across most of the area only averaged between 45-70 percentof normal. Temperature-wise, after a notably hot June and especially July, readings in August eased up a bit with the meanmonthly temperature across most of the area averaging 1-3 degrees below normal for a change. Despite these somewhatencouraging trends, the overall drought impact continued to retain or even worsen its grip during the month. According to theU.S. Drought Monitor, most of the area started out August in category D3 extreme drought. By month's end, this extremedrought had overtaken even more of the area, with category D4 exceptional drought creeping into southern portions of Rooksand Osborne Counties. Only portions of eastern Jewell and northeast Mitchell Counties still held onto category D2 severedrought at the end of the month. This onset of severe to exceptional drought represented a notable degradation in conditionssince early May when the entire area was free of all drought categories. Looking back, the drought situation that took initiallytook hold in May and June continued to worsen in July when most of the area measured no more than 1-2 inches of rain, versusthe 30-year normal of around 4 inches. Furthermore, average maximum temperatures for the combined months of June and Julyended up a significant 6-10 degrees above normal, essentially baking moisture-starved maturing crops. As of August 8th, theUSDA had designated all six counties as primary counties in a federal drought disaster area. For the week ending August 12th,the Kansas Weather and Crops Report from the USDA indicated that topsoil moisture across the north central district was 81percent short to very short and subsoil moisture 91 percent short to very short. Across the state as a whole, range and pastureconditions were reported to be 90 percent poor to very poor, the worst since ratings began in 1995. However, grazing andhaying of Conservation Reserve Program (CRP) acres was being taken advantage of to supplement depleted pastures. TheKansas corn and soybean crop was rated as 70 percent poor to very poor, marking the worst conditions since the current dataseries began in 1985.162

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, North CentralJewell CountyBurr Oak 02 0005CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)There were several small branches down. The largest branch down was 8 inches in diameter, with the estimated 60 mph windgust.Mainly between midnight and 2 AM CDT on this early Thursday morning, the southern edge of a storm complex primarilycentered over southern Nebraska brushed through portions of this six-county area, primarily affecting Phillips, Smith, Jewelland Mitchell Counties. Although ground-truth reports were quite limited, the NWS cooperative observer at Burr Oak reportedseveral tree branches down from estimated 60 MPH winds. These storms, which primarily consisted of multicell clusters andshort line segments, first started developing around sunset in northwest Kansas and southwest Nebraska near a surface troughaxis before spreading east into the local area. On a positive note, this event brought widespread rainfall of at least 0.50-inch tomuch of the area, bringing limited short-term relief to the ongoing severe to extreme drought. On the large-scale aloft, thisevent unfolded within modest quasi-zonal flow between the southern periphery of a shortwave trough crossing the NorthernPlains states and a mid-upper ridge centered over northern Texas. Near the time of the minor wind damage at Burr Oak, themesoscale environment featured at least 1000 J/kg most-unstable CAPE and 30-40 knots of 0-6 kilometer wind shear. Note:The estimated wind gust of 52 knots is equivalent to 60 mph.Rooks County5 SSE Stockton 23 1650CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail fell along with 60 mph wind gusts.Rooks County5 SSE Stockton 23 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts up to 60 mph occurred along with nickel size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Rooks County10 WNW Stockton 23 1700CST2300CST 0 0 0.00K 0.00K Heavy RainStorm total rainfall of 3.43 inches was reported during this event.Although thunderstorms were rather numerous across the six-county area for several hours on this Thursday afternoon andevening, the vast majority of this activity remained sub-severe. However, one storm briefly became severe over Rooks Countyshortly before 6 PM CDT, resulting in a report of estimated 60 MPH winds and nickel size hail near Stockton. For most of thearea this round of storms ended up being nothing more than a very beneficial rain event, with widespread coverage of at least0.75 to 1.50 inches. There were even localized pockets of much heavier rainfall, including 3.43 inches reported by aCoCoRaHS observer 10 miles west-northwest of Stockton. Scattered to numerous strong multicell storms first starteddeveloping across North Central Kansas between 430 PM and 530 PM CDT, eventually coalescing into a larger mass ofshowers and weak storms that lingered over parts of the area until around midnight CDT. In the mid and upper levels, flow wasquasi-zonal and fairly weak, but did contain embedded subtle shortwave troughs. At the surface, the initial storms flared up inthe vicinity of a rather well-defined trough axis extending northeastward from southwest Kansas, and also on the warm side ofa differential heating boundary separating mostly sunny skies across most of Kansas from widespread cloud cover oversouthern Nebraska. Around the time of the severe storm in Rooks County, the mesoscale environment featured at least 1000-1500 J/kg mixed-layer CAPE, but no more than 30 knots of 0-6 kilometer wind shear.KANSAS, NortheastKSZ025-057-060-102>105Atchison - Doniphan - Johnson - Leavenworth - Linn - Miami - Wyandotte01310000CST2359CST 0 0 0.00K 0.00K DroughtDry conditions, which started in the spring, intensified during the month of August. Drought D2 and D3 conditions at thebeginning of the month, increased to D3 and D4 conditions by the end of the month. Most locations by the end month,continued yearly rainfall deficits in the 10 to 15 inch range.Atchison County2 W Muscotah 08 1730CST 0 0 0.00K 0.00K Hail (0.75)Penny size hail was reported at 286th and Edwards.163

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, NortheastAtchison County1 SE Atchison 08 1738CST 0 0 0.00K 0.00K Hail (0.75)Leavenworth County1 NW Basehor 08 1743CST 0 0 0.00K 0.00K Hail (1.00)Leavenworth County1 S Leavenworth 08 1743CST 0 0 0.00K 0.00K Hail (1.00)Leavenworth CountyLeavenworth 08 1751CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Leavenworth County1 W Jarbalo 08 1801CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph, with numerous tree limbs reported down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Leavenworth County3 W Basehor 08 1824CST 0 0 0.50K 0.00K Thunderstorm Wind (61EG)Thunderstorm wind gusts were estimated up to 70 mph. A small garage was reported blown down at 174th and State LineRoad.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Johnson County1 NE Olathe 08 1837CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph, at the corner of 199th and Blackbob Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Linn County1 W La Cygne 08 1850CST 0 0 0.00K 0.00K Hail (0.75)KANSAS, NorthwestA cold front brought severe thunderstorms to portions of extreme eastern Kansas, during the late afternoon and evening hoursof August 8, 2012.Logan County2 W Page City 02 1545CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Spotter estimated peak winds of 65 mph, along with pea-sized hail and visibility near zero in heavy rain. One inch of rain fellwithin a 20-minute period, with over two inches nearby.Thunderstorms developed over eastern Colorado and northwest Kansas during the afternoon. In Kansas, the storms mainlyaffected Wallace and Logan counties, with two to three inches of rain reported near Winona, including pea-sized hail and awind gust estimated at 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Sherman County23 SW Goodland 07 1840MST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Three-inch diameter tree branches were broken and 1.15 of rain fell as thunderstorms moved across the area.A line of thunderstorms moved southeast from Yuma and Kit Carson counties and crossed into western Kansas. A severe windgust was reported in Burlington and minor wind damage occurred along the Colorado-Kansas border in Kansas. Note: Theestimated wind gust of 56 knots is equivalent to 64 mph.164

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, NorthwestRawlins County5 W Achilles 23 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Spotter estimated peak winds to be near 60 mph. Precipitation totaled 2.30 inches in about 50 minutes ending at 610 pm CDT..Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sheridan County7 E Hoxie 23 1807CST 0 0 0.00K 0.00K Hail (1.75)Resident estimated golf ball sized hail 7 miles east of Hoxie at his location. Time estimated from Doppler radar.Logan County1 SSE Oakley Muni Arpt 23 1808CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)KANSAS, SoutheastThunderstorms developed over Rawlins and Decatur counties during the afternoon and moved southeast. Several reports ofsevere wind and hail were received, in addition to reports of heavy rainfall. No flooding was reported, but precipitation totalsfor the 24-hour period ranged from 2.50 to 5.50. Note: The measured wind gust of 52 knots is equivalent to 60 mph.KSZ032-047>053-067>072-082>083-091>096-098>100Allen - Barton - Butler - Chase - Chautauqua - Cowley - Elk - Ellsworth - Greenwood - Harper - Harvey -Kingman - Labette - Lincoln - Marion - McPherson - Montgomery - Neosho - Reno - Rice - Russell - Saline- Sedgwick - Sumner - Wilson - Woodson01310000CST2359CST 0 0 DroughtKANSAS, SouthwestA prolonged period of dry weather intensified the drought conditions across most of Kansas during the month of August. Anunusually dry period from May through July combined with high temperatures soaring back above the century mark (100s) forthe first part of the month, to push most of the region from an extreme drought (D2) into an exceptional drought (D3) by theend of the month of August. Most areas saw some rainfall towards the end of the month, which led to some gradualimprovement over South Central Kansas.Morton County11 ENE Richfield 03 1728CST 0 0 Hail (1.00)Morton County11 SW Richfield 03 1820CST 0 0 Hail (1.00)Stevens County11 NNW Hugoton 03 1839CST 0 0 Hail (0.75)Morton County14 WSW Richfield 03 1922CST 0 0 Hail (0.75)Seward CountyHayne 03 1930CST 0 0 Hail (1.00)Meade County4 E Meade State Park 03 1948CST 0 0 Hail (0.88)Seward County1 WNW Kismet 03 1950CST 0 0 Hail (0.75)Meade CountyFowler 03 2007CST 0 0 Thunderstorm Wind (61EG)Winds were estimated to be 70 MPH.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.165

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, SouthwestMeade County7 NNE Fowler Arpt 03 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (85EG)A tree was blown down by the high winds on 30 road, 1/2 mile south of the Ford county line.Note: The estimated wind gust of 85 knots is equivalent to 98 mph.Ford County6 WNW Bloom 03 2033CST 0 0 Thunderstorm Wind (80EG)Trees were uprooted and a roof was torn off a building near 118 and Wrangler roads.Note: The estimated wind gust of 80 knots is equivalent to 92 mph.Ford County7 SSW Wilroads 03 2040CST 0 0 Hail (1.00)Ford County7 SSW Wilroads 03 2040CST 0 0 Hail (1.00)Ford County2 NW (DDC)Dodge City Arpt 03 2040CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Ford County7 SSW Wilroads 03 2040CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Winds were estimated to be 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Ford County6 N Bloom 03 2040CST 0 0 Thunderstorm Wind (85EG)Numerous limbs of 8 to 9 inches in diameter were blown down. A vehicle was damaged by the falling debris.Note: The estimated wind gust of 85 knots is equivalent to 98 mph.Ford County3 NE Bloom 03 2045CST 0 0 Thunderstorm Wind (87EG)Winds blew a 20 foot Featerlite stock trailer over, tipped over grain carts and uprooted a large tree.Note: The estimated wind gust of 87 knots is equivalent to 100 mph.Ford County2 ESE Bloom 03 2045CST 0 0 Thunderstorm Wind (87EG)The top half of a barn was blown off and trees were uprooted.Note: The estimated wind gust of 87 knots is equivalent to 100 mph.Ford County1 E Bloom 03 2045CST 0 0 Thunderstorm Wind (78EG)Several campers were blown over in Bloom and at least 2 semi trailers were blown over on highway 54 east of Bloom.Note: The estimated wind gust of 78 knots is equivalent to 90 mph.Ford County1 NE Dodge City 03 2047CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.166

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, SouthwestKiowa County1 NE Mullinville 03 2056CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Windows were blown out of a home.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Kiowa County4 SE Mullinville 03 2100CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Winds were estimated to be 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Kiowa County3 SW Greensburg 03 2135CST 0 0 0.00K Thunderstorm Wind (56EG)The home lost shingles due to the high wind gusts.A stationary front extended across the area with moisture pooling on the north side of the boundary. As a shortwave troughmoving out of Colorado provided the necessary lift to produce thunderstorms, some of which became severe. Note: Theestimated wind gust of 56 knots is equivalent to 64 mph.Kiowa County1 NE Mullinville 07 1443CST 0 0 Thunderstorm Wind (65EG)Minor roof damage was reported at the Methodist church in Mullinville. Several windows were cracked or broken.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Kiowa County1 NE Mullinville 07 1530CST 0 0 Hail (0.75)Scattered thunderstorms developed along a surface trough under northwest flow aloft.Lane County5 NNW Dighton Arpt 18 0231CST 0 0 Hail (1.50)The milo crop was stripped by the hail.Finney County1 NE (GCK)Garden City Arpt 18 0644CST 0 0 Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.Gray County1 ENE Cimarron 18 0700CST 0 0 Thunderstorm Wind (87EG)An empty 7000 gallon truck trailer was moved several feet. A metal shed was moved 5 feet.Note: The estimated wind gust of 87 knots is equivalent to 100 mph.Gray County1 N Cimarron 18 0702CST 0 0 Thunderstorm Wind (87EG)A shed was destroyed and windows were blown out of homes. A 2000 gallon empty fuel tank was blown into farm equipment.Note: The estimated wind gust of 87 knots is equivalent to 100 mph.Ford County1 NE Dodge City 18 0715CST 0 0 Thunderstorm Wind (65EG)A 4 inch diameter tree limb was blown down by the high wind.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Ford County1 NE Dodge City 18 0720CST 0 0 Thunderstorm Wind (52EG)Winds were estimated to be 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.167

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KANSAS, SouthwestFord County3 NW Dodge City 18 0722CST 0 0 Thunderstorm Wind (52EG)Winds were estimated to be 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark County6 E Sitka 18 0730CST 0 0 Thunderstorm Wind (52EG)Winds were estimated to be at least 60 MPH.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Ford County1 E Bloom 18 0730CST 0 0 Thunderstorm Wind (65EG)Winds were estimated at 75 MPH.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Ford County4 ENE Bloom 18 0730CST 0 0 Thunderstorm Wind (78EG)A 24 foot stock trailer and 500 bushel grain cart blown over.Note: The estimated wind gust of 78 knots is equivalent to 90 mph.Ford County4 N Bloom 18 0745CST 0 0 Hail (1.00)Ford County4 ENE Bloom 18 0755CST 0 0 Hail (1.75)Ford County4 SW Kingsdown 18 0805CST 0 0 Hail (0.88)A early morning MCS rolled out of the high plains of Colorado aided by a low level jet.Hodgeman County15 WNW Jetmore 23242300CST0200CST 0 0 0.00K 0.00K Heavy RainRainfall of 4.45 was reported at a location 12 miles northeast of Kalvesta.Trego County14 WSW Trego Center 23242300CST0100CST 0 0 0.00K 0.00K Heavy RainThe rain gauge with a capacity of 8 inches was overflowing.Grant County4 W Ulysses Arpt 24 1455CST 0 0 Hail (0.88)Strong winds were also reported with the hail.Stanton County5 SSE Stanton Co Arpt 24 1505CST 0 0 Hail (0.75)Winds were estimated to be 40 MPH while the hail was falling.Morton County5 ESE Richfield 24 1505CST 0 0 Thunderstorm Wind (61EG)A large but dead tree was blown over.A slow moving thunderstorm complex produced training over a small location resulting in very heavy rainfall. Note: Theestimated wind gust of 61 knots is equivalent to 70 mph.168

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, CentralMadison County1 SE Richmond 03 1815EST 0 0 10.00K 0.00K Flash FloodThe Madison County emergency manager reported a water rescue just west of downtown Richmond within an area thatcommonly experiences flooding. Several other low water crossings east of Richmond were briefly closed by high water.Widespread thunderstorms over east central Kentucky produced locally heavy rainfall. Flooding was reported in Richmond.Barren County1 W Hiseville 05 0350CST 0 0 0.00K 0.00K FloodLocal law enforcement reported that water covered a portion of highway 70 between Griderville and Hiseville.Butler CountySugar Grove 05 1540CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Bowling Green broadcast media reported that a large oak tree was downed near the town of Sugar Grove. Dime sized hail wasfell with this storm.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hardin CountyElizabeth Town 05 1814EST 0 0 0.00K 0.00K Flash FloodIn Elizabethtown, a spotter reported that six to seven inches of flowing water closed the State Highway 31 bypass near St JohnRoad.Hardin County1 WNW Rineyville 05 1830EST 0 0 0.00K 0.00K Flash FloodA section of State Highway 220 near Rineyville was closed due to high water.Hardin County2 N Franklin Xrds 05 1830EST 0 0 0.00K 0.00K Heavy RainA Kentucky Mesonet rain gauge located 8 miles west of Elizabethtown measured 3.33 inches of rain in 40 minutes.Grayson CountyTar Hill 05 1837CST 0 0 0.00K 0.00K Heavy RainA spotter northwest of Big Clifty measured 4.5 inches of rain. This rain fell within a 2 hour period.Hardin County1 ESE Cecilia 05 1905EST 0 0 0.00K 0.00K Flash FloodHigh water briefly blocked the entrance to the Dollar General Store along Highway 62 near Cecilia.Hardin County1 N Martin Box 05 2241EST 0 0 5.00K 0.00K Flash FloodLocal law enforcement reported that a water rescue was required from a vehicle at the Elizabethtown youth soccer facility.An early morning thunderstorm on August 5th brought heavy rain that briefly closed State Highway 70 in Barren County.Later that afternoon, slow moving thunderstorms developed in a moisture rich air mass ahead of a cold front that was movingsouth across southern Indiana. Despite the scattered nature of this convection, several nearly stationary storms producedexcessive rainfall across central Kentucky south of Louisville.Lincoln County1 ENE Mc Kinney 09 1355EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A spotter reported several trees down near his neighborhood 7 miles southwest of Stanford.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fayette County3 NNW Jonestown 09 1452EST 0 0 0.00K 0.00K Hail (1.00)The Lexington broadcast media reported one inch hail near Southland Drive. Smaller, nickle-sized hail fell at several otherlocations around the city.169

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, CentralJessamine County2 ESE Almahurst 09 1455EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Local law enforcement reported a tree down just north of Nicholasville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Woodford CountyVersailles 09 1513EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Local law enforcement reported that several trees were downed in Versailles.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Harrison County1 N Colbys Store 09 1615EST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)A Kentucky mesonet site located 8 miles north of Cynthiana measured a 61 mph wind gust.A broken line of strong thunderstorms developed across southern Indiana during the afternoon of August 9th. Storms initiatedalong an east west orientated outflow boundary left over from convection earlier in the morning. By late afternoon, these stormsmoved southeast into the Bluegrass Region of Kentucky. The strongest storms produced isolated damaging winds. Note: Themeasured wind gust of 53 knots is equivalent to 61 mph.Logan County1 ESE Jerico 16 1900CST 1 0 15.00K 0.00K Thunderstorm Wind (43EG)The state EOC reported that strong thunderstorm winds toppled a tree onto the porch of a resident in Lewisburg. A man waskilled. M55PHNote: The estimated wind gust of 43 knots is equivalent to 49 mph.Jefferson County1 SSE St Dennis 16 1940EST 0 0 2.00K 0.00K LightningLightning toppled a large tree that blocked Lee's Lane. Several large tree branches also were downed by estimated 60 mphwinds across the Shively neighborhood in western Louisville.Oldham County1 WNW Goshen 16 2014EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several trees fell in the Prospect and Goshen areas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Warren County1 SW Bowling Green 16 2017CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)A spotter in Bowling Green measured a 63 mph gust. He relayed a secondary report of several trees downed across the city.Note: The measured wind gust of 55 knots is equivalent to 63 mph.Simpson County1 N Franklin 16 2020CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A spotter estimated a 60 mph wind gust in Franklin.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Simpson County1 WNW Franklin 16 2045CST 0 0 0.00K Thunderstorm Wind (60EG)Simpson County emergency management reported that two trees and some power lines were downed along State Highway 100just to the west of Franklin.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Simpson County1 WNW Geddes 16 2046CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)Thunderstorms removed a portion of a resident's roof. She mentioned that several trees were toppled in her yard.170

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, CentralA lengthy squall line that developed across southern Indiana crossed the Ohio River during the evening hours of August 16th.For the most part, this line was sub-severe. However, a few damaging wind gusts developed across the Louisville metropolitanarea. As this line moved south across central Kentucky, it remain slightly elevated, precluding any severe wind gusts. However,this line encountered more unstable air near and south of Bowling Green. Several damaging wind gusts ensued, including onethat fatally injured a person in Logan County. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.KENTUCKY, EasternKnott County1 S Littcarr 01 1450EST 0 0 Hail (1.00)Martin County1 E Tomahawk 01 1525EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Route 40.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Harlan County1 W Rosspoint 01 1535EST 0 0 Thunderstorm Wind (55EG)A tree fell on a car on Hwy 522. Numerous other trees were also blown down in the area.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Martin CountyMoree 01 1600EST 0 0 Thunderstorm Wind (52EG)Trees were blown down along Meathouse Creek.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Harlan CountyBig Laurel 01 1625EST 0 0 Hail (1.25)Harlan CountyBig Laurel 01 1625EST 0 0 Thunderstorm Wind (55EG)Several trees and large limbs were blown down around the Big Laurel community.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Letcher County1 S Ulvah 01 1655EST 0 0 Hail (1.00)Perry CountyHazard 01 1700EST1900EST 0 0 Heavy RainTwo and ninety seven hundredths of an inch of rain fell in Hazard between 6 and 8 pm.Perry County1 SSE Hazard 01 1700EST1900EST 0 0 Heavy RainTwo and eighteen hundredths of an inch of rain fell near Hazard between 6 and 8 pm.Perry CountyHazard 01 1706EST1736EST 0 0 Hail (1.00)Hail lasted for about a half hour near Cardinal Chevrolet.171

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, EasternPerry CountyGlomawr1 WNW Hazard01 1725EST1745EST 0 0 1.00K 0.00K FloodSeveral roads were briefly impassable in Hazard and in the Glomawr area due to standing water. This included the Hal RogersParkway at the Morton Boulevard intersection.Scattered strong to severe thunderstorms produced wind damage, large hail, and locally heavy rainfall and flooding acrossportions of eastern Kentucky during the late afternoon and evening hours of August 1st.Letcher CountyWhitco 03 1249EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on School Hill Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Letcher County1 SW Thornton 03 1340EST1440EST 0 0 Heavy RainNearly two inches of rain fell in Thornton between 240 and 340 pm local time.Letcher County1 ENE Isom1 S Sackett03 1415EST1700EST 0 0 1.00K 0.00K Flash FloodStreams were out of their banks and blocking Hwy 1148 and Walters Branch Rd near Isom.Isolated strong thunderstorms dumped locally heavy rainfall on portions of Letcher county on August 3rd. This rainfall led tobrief flash flooding in Isom.Whitley County2 NW Faber 05 1230EST1600EST 0 0 1.00K 0.00K Flash FloodEatontown Rd was flooded and impassable.Whitley CountyCorbin 05 1230EST1630EST 0 0 1.00K 0.00K Flash FloodSeveral streets were blocked by high water in town, including Master Street. the Cumberland Falls Hwy was also flooded nearexit 25 of I-75.Whitley County2 SE Barton1 NE Woodbine05 1230EST1630EST 0 0 1.00K 0.00K FloodFour to 6 inches of water were flowing across Hwy 26. Many area creeks and streams were also reported as bankfull.Isolated strong thunderstorms dumped locally heavy rainfall on portions of Whitley county during the afternoon hours ofAugust 5th. The heavy rain led to flash flooding and high water in Corbin and Faber.Pike County1 NE BelfryToler06 0750EST1215EST 0 0 1.00K 0.00K Flash FloodWater was flowing over Church House Hollow Rd.172

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, EasternPike County2 ENE Phyllis2 NW NighFlooding in the Belfry area from August 6, 2012.06 1105EST1200EST 0 0 1.00K 0.00K Flash FloodHwy 194 was flooded and impassable above the Grapevine School.Pike CountyTolerBelfry06 1200EST1500EST 0 0 1.00K 0.00K FloodA few back roads remained under water in the Belfry and Toler communities but the water was receding at the time of thisreport.Strong thunderstorms produced flash flooding across portions of Pike county on August 6th. The flooding occurred in Belfryand Phyllis.Whitley County2 SSW Meadow Creek 07 0820EST1030EST 0 0 1.00K 0.00K Flash FloodFlash flooding occurred on Whetstone Creek and Maple Creek with water up over the roads and approaching houses along thecreeks.Knott CountyCodyRedfox07 0845EST0945EST 0 0 1.00K 0.00K Flash FloodDefeated Creek was flooded and the flood waters pushed a vehicle partially off Defeated Creek Rd.Isolated strong thunderstorms produced locally heavy rainfall and flash flooding across portions of Knott and Whitley countiesduring the morning of August 7th.Rockcastle CountyClimax 09 1115EST 0 0 Thunderstorm Wind (52EG)Trees were blown down near Climax.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pulaski County1 E West Somerset 09 1135EST 0 0 Thunderstorm Wind (52EG)Three trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.173

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, EasternPulaski County1 E West Somerset 09 1141EST 0 0 Thunderstorm Wind (52EG)Trees were blown down and across the road on Leaf Lane.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jackson County1 WNW Deese 09 1212EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Hwy 89S in the Indian Creek area.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Laurel County2 NW (LOZ)Mcgee Fld Londo 09 1400EST1600EST 0 0 1.00K 0.00K Flash FloodFariston Rd and Hicks Lane were flooded with water rising into an abandon house on Hicks Lane.Laurel County1 SE Pittsburg 09 1445EST1600EST 0 0 1.00K 0.00K Flash FloodStanding water 2 to 3 feet deep surrounded a vehicle on a railroad underpass on Bullock Rd.Floyd County1 E Alphoretta 09 1545EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Route 1428.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Floyd County1 E Prestonsburg 09 1555EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on the west side of Prestonsburg.Severe thunderstorms blew down trees and caused flash flooding across portions of Rockcastle, Pulaski, Jackson, Laurel, andFloyd counties on August 9th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Floyd County1 NE Auxier 10 1305EST 0 0 Thunderstorm Wind (50EG)A tree was blown down in Auxier.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Pike County1 SE Coal Run 10 1454EST 0 0 Thunderstorm Wind (52EG)Several trees were blown down and uprooted between Ratliff and Village Street.Isolated severe thunderstorms brought down trees in Floyd and Pike counties during the afternoon hours of August 10th. Note:The estimated wind gust of 52 knots is equivalent to 60 mph.Floyd County1 SE Pyramid 15 0900EST0930EST 0 0 1.00K 0.00K Flash FloodFlood water temporarily trapped a motorist on Alum Lick Rd. The water was four to five feet deep over the road at one point.Pike County1 E Turkey Creek 15 1004EST1230EST 0 0 1.00K 0.00K Flash FloodRising water shifted an occupied trailer on Rt 612 near Williamson.Isolated incidences of flash flooding were reported in Floyd and Pike counties during the late morning hours of August 15th.174

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, NortheastCarter County3 SE Pactolus1 NNE Grayson03 1450EST1615EST 0 0 25.00K 0.00K Flash FloodThe Grayson cooperative observer measured 3.36 inches in 2 hours ending around 1500E. An automatic gauge in anotherlocation in Grayson measured a total of 2.2 inches.Damron Branch flooded roads and vehicles near Route 60. Water levels reached the floor boards of a few vehicles. Urbanstreet flooding occurred too.KENTUCKY, NorthernShowers and thunderstorms were produced by a strong mid level disturbance along with afternoon heat and humidity. Onestorm set up over eastern Carter County. Downpours caused urban and flash flooding in the vicinity of Grayson and a streamcalled Damron Branch.Bracken CountyWoolcott 05 2020EST2130EST 0 0 1.00K 0.00K Flash FloodRoute 1159 was covered by water from a stream being out of its banks due to heavy rainfall.Bracken County2 S Foster 05 2020EST2330EST 0 0 20.00K 0.00K Flash FloodHolts creek road was impassible south of the AA Highway due to high water over the road caused by heavy rainfall. A housealong the road was also flooded.Bracken County1 WSW Willow Grove 05 2045EST2145EST 0 0 200.00K 0.00K Flash FloodThere were reports of water entering many homes in the Foster Johnsonville area.A cold front helped to produce numerous thunderstorms during the evening across northern Kentucky. Some storms movedover the same areas as previous storms, causing flash flooding to occur.Kenton County1 W Independence 09 1503EST1507EST 0 0 Hail (1.00)Boone County2 SSW Union 09 1503EST1507EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Large trees were downed due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Boone County1 W Walton 09 1505EST1509EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were downed due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Kenton County2 NW Independence 09 1510EST1514EST 0 0 Hail (0.88)Campbell County4 W Grants Lick 09 1538EST1542EST 0 0 Hail (1.75)175

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, NorthernCampbell County2 WNW Grants Lick 09 1540EST1544EST 0 0 Hail (0.75)Bracken County2 W Johnsville 09 1615EST1619EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were downed due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bracken County1 SE Foster 09 1716EST1800EST 0 0 1.00K 0.00K FloodHigh water due to heavy rainfall was reported on Holts Creek Road.Disorganized convection developed ahead of a shortwave trough during the afternoon and evening hours. Some of these stormsbecame severe with damaging winds and isolated large hail the primary threats. Heavy rainfall also produced isolated flooding.KENTUCKY, SouthwestKYZ001>022 Ballard - Caldwell - Calloway - Carlisle - Christian - Crittenden - Daviess - Fulton - Graves - Henderson -Hickman - Hopkins - Livingston - Lyon - Marshall - McCracken - McLean - Muhlenberg - Todd - Trigg -Union - Webster01310000CST2359CST 0 0 0.00K DroughtThe drought which began in May reached its most extreme stage by early August. Exceptional drought conditions persistedacross far western Kentucky, west of a line from Henderson to Kentucky Lake. Extreme drought conditions were observedacross the remainder of western Kentucky, including the Pennyrile region and the Owensboro/Henderson areas. Soil moisturedeficits remained very high. Anywhere from 70 to 100 percent of the region's topsoil and subsoil moisture was reported as shortor very short. The most severe soil moisture deficits were west of Kentucky Lake. Many crops were heavily damaged, andnumerous counties were declared natural disaster areas. Corn crops were a partial or complete loss. Soybeans were faringsomewhat better. The percentage of pastures rated as poor or very poor held steady from July. Some small trees and shrubswere killed. Ponds across the region were dry or drying quickly. A water shortage watch was issued by the State of Kentuckyfor Mclean and Crittenden Counties. The drinking water supply for some residents of those counties was low enough to warrantconservation measures. Across the western part of Kentucky, there were sporadic reports of domestic wells that stoppedpumping. Even with the isolated rainfall from thunderstorms, fire danger remained high. Bans on outdoor burning were in placefor numerous counties. Streamflows were running normal to below normal. At Paducah, 2.75 inches of rain fell in August,which was within one percent of normal. For the year to date, 16.05 inches had fallen, which was 16.26 inches below normal.The drought began in May and continued into September.Henderson County1 N Henderson1 NNE Ohioriver Ordinance02 2155CST2230CST 0 0 0.00K 0.00K Flash FloodMuhlenberg CountyCentral City 0203Many city streets had two to three feet of water over them.2330CST0010CST 0 0 0.00K 0.00K Heavy RainSeveral roadways and main routes throughout the city had about six inches of water over them.Strong thunderstorms produced very heavy rain that caused local flooding. The storms were organized into a mesoscaleconvective system (MCS) that tracked slowly southeast across northwest Kentucky. The storms were fueled by a southwestwind flow of very warm and humid air that averaged around 20 knots a few thousand feet above ground level. Precipitablewater values near 2.3 inches supported torrential rainfall rates. The complex of storms formed along a warm front that extendedfrom southern Missouri across southern Illinois.176

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, SouthwestMccracken County1 NE Shady Grove 05 1532CST 0 0 5.00K 0.00K LightningLightning struck a vehicle on the westbound off-ramp of Interstate 24 at exit 16. The electrical system of the car malfunctioned,causing the operator of the vehicle to lose control. The driver and three passengers were treated at a local hospital for non lifethreateninginjuries.A thunderstorm produced a lightning strike that disabled a moving vehicle. The storm occurred along a weak cold front thatextended from the Lower Great Lakes region to the Lower Ohio Valley.KYZ011Lyon11 1300CST2200CST 0 0 0.00K WildfireA large brush fire scorched about 250 acres in the Land Between The Lakes National Recreation Area. The fire occurred on thenorthern end of the recreation area, sending heavy smoke across the community of Grand Rivers. About a half dozen firedepartments from Lyon and Livingston Counties, along with state and federal fire agencies, battled the blaze. A few roads wereclosed, including the main highway providing access to the recreation area. Heavy smoke forced some people out ofcampgrounds, but none were closed.Ballard County3 N Barlow3 S OscarMccracken CountyWest PaducahPaducah16 1810CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)Several small trees were across roads. Power lines were blown down. The damage was mostly on or near Highway 1105between Barlow and Oscar.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.16 1827CST1835CST 0 0 20.00K 0.00K Thunderstorm Wind (51MG)A wind gust to 59 mph was measured at Barkley Regional Airport, four miles west of Paducah. Numerous tree limbs and a fewsmall trees were blown down about a mile north of the airport. A tree fell on a house in the city of Paducah.Muhlenberg CountyGreenvilleSouth CarrolltonLyon CountyKuttawaEddyvilleNote: The measured wind gust of 51 knots is equivalent to 59 mph.16 1855CST1910CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)Numerous trees were blown down across the county. Trees were down in the Greenville, South Carrolton, and Central Cityareas, as well as rural areas. There were power lines down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.16 1905CST1921CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)In Eddyville, a trained spotter heard branches breaking off trees as the power went out. Wind gusts were estimated near 60mph. In the Kuttawa area west of Eddyville, county road crews were dispatched to clear numerous trees over State Roads 810,93, 295, and 819.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Calloway CountyMurray 16 1930CST 0 0 0.00K 0.00K Hail (0.75)Dime-size hail occurred on the south side of the city.Trigg County2 S Cadiz 16 1935CST1945CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down on a car off State Route 139 north of Cadiz. One person was trapped. On Highway 139 south of Cadiz,a tree was blown onto a power line. Several other trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.177

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012KENTUCKY, SouthwestTrigg County3 E Montgomery 16 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)A trained spotter near the Christian County line measured a wind gust to 58 mph.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Christian County2 WSW Julien 16 1948CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)A tractor-trailer rig was overturned on Interstate 24 at mile marker 72.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Christian CountyHopkinsville 16 1953CST1955CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)A trained spotter measured a wind gust to 65 mph about two miles south of Hopkinsville. Another spotter measured a gust to 60mph on the south side of Hopkinsville.Note: The measured wind gust of 56 knots is equivalent to 64 mph.Trigg CountyRoaring Spg 16 1953CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees were blown down on state roads.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Christian County3 NE Oak Grove 16 2005CST 0 0 5.00K 0.00K Thunderstorm Wind (56MG)LOUISIANA, NortheastA couple of trees were blown down. Both trees landed across roads, causing traffic problems. One of the trees was 20 feet tall.A line of strong to severe thunderstorms produced scattered reports of damaging wind across western Kentucky. Most of thewind damage was east of Kentucky Lake. Strong surface pressure falls ahead of the line of storms, combined with veryunstable air out ahead of the line, contributed to surging line segments and bow echoes. The line of storms originated along acold front moving southeastward across Illinois and Missouri. Mid-level winds around 30 knots were sufficient to maintainorganization of the convective system. Note: The measured wind gust of 56 knots is equivalent to 64 mph.Catahoula Parish3 ESE Webb 06 1910CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Scattered trees were blown down southwest of Harrisonburg causing power outages and blocking roads.Warm and humid conditions, common during August in northeast Louisiana, led to the development of a severe thunderstormthat caused some wind damage during the afternoon hours of August 6th. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Tensas ParishSt Joseph Lake 09 0555CST 0 0 8.00K 0.00K Thunderstorm Wind (55EG)Trees and power lines were blown down due to a microburst on the west bank of Lake Saint Joseph south of Newellton.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.West Carroll Parish1 W Kilbourne 09 1810CST 0 0 0.00K 0.00K Hail (0.88)Morehouse Parish1 NE Mer Rouge 09 1830CST 0 0 0.10K 0.00K Thunderstorm Wind (43EG)A tree was down across a road.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.178

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NortheastWest Carroll Parish1 NW Pioneer 09 1850CST 0 0 6.00K 0.00K Thunderstorm Wind (50EG)Power lines were blown down in Pioneer.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Morehouse Parish4 W Brodenax 09 1918CST 0 0 0.00K 0.00K Hail (1.00)Morehouse Parish4 W Brodenax 09 1918CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Several large limbs were blown down onto power lines.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richland Parish3 NNW Girard 09 1925CST1930CST 0 0 20.00K 0.00K Hail (1.25)Half dollar size hail was covering the ground north of Start. Minor roof damage occurred to a home from the hail.Richland Parish2 NNE Girard 09 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Large limbs were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Madison Parish5 S Altoona 09 1935CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)Numerous trees and power lines were blown down along Route 577 between Bayou Macon Lounge and Waverly. Severalmetal carports were blown around as well.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Madison Parish13 SSW Altoona 09 1940CST 0 0 10.00K 0.00K Hail (1.75)Hail up to golf ball size fell at the Bayou Macon Lounge.Franklin Parish2 W Swampers 09 1950CST1955CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)Multiple trees were down across the parish along with a roof blown off of a trailer.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Franklin Parish2 SSE Swampers 09 1950CST1955CST 0 0 25.00K 0.00K Thunderstorm Wind (60EG)A roof was blown off a trailer on Highway 578. Multiple trees were blown down all across the parish.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Richland Parish1 SE Alto 09 1956CST 0 0 10.00K 0.00K Hail (1.75)Franklin Parish3 SW Bushes3 ENE Winnsboro Muni Arpt09 2000CST2020CST 0 0 60.00K 0.00K Thunderstorm Wind (55EG)A tree fell on a house on Jim Albert Road. Trees were blown down all across Franklin Parish with three trees on houses. In thearea south of Crowville, a roof was blown off a trailer, large tree limbs fell through houses, and a few windows were blown out.A couple of signs were blown down at the Citgo gas station on Highway 4 West.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.179

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NortheastRichland Parish1 SE Alto 09 2000CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)Trees and a power line were down across LA Highway 15. Multiple trees and power lines were blown down between Rayvilleand Mangham.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Catahoula Parish3 NW Sicily Is 09 2015CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)Several trees fell onto roads in the area. A trailer was damaged by a falling tree. Power outages also occurred in the area.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Tensas Parish3 ESE New Light 09 2020CST 0 0 8.00K 0.00K Thunderstorm Wind (55EG)Power lines and large limbs were blown down across northern Tensas Parish. Multiple trees were blown down blockingLouisiana Highway 4.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Richland Parish1 NE Mangham 09 2025CST 0 0 0.00K 0.00K Hail (1.25)Franklin Parish2 ENE Winnsboro 09 2025CST 0 0 10.00K 0.00K LightningCatahoula Parish2 SW LelandTrinityA house was struck by lightning.09 2100CST2145CST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)Multiple trees and power lines were blown down all across northern Catahoula Parish. Power lines were blown down inJonesville.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Concordia Parish1 E Wildsville 09 2145CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Power lines were blown down in Wildsville.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Morehouse Parish1 N Oak Ridge 09 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Franklin Parish2 NE Baskin2 SSW Big CreekA tree was blown down across Highway 133.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.09 2200CST2230CST 0 0 0.00K 0.00K Flash FloodWater was covering portions of Highway 857.A strong upper level disturbance interacted with a very warm and humid air mass in place across the region allowing severalsevere thunderstorms to develop during the evening hours of the 9th. The storms developed across far northeastern Louisianaand southeast Arkansas initially, gradually moving south as the evening wore on. Damage due to wind and hail occurred as aresult of these storms, in addition to some damage as a result of lightning.Catahoula ParishJonesville 10 1725CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A utility line was knocked down after a large limb fell on it.An isolated severe storm developed over northeast Louisiana during the early evening hours ahead of a slow moving cold frontcoming from the northwest. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.180

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NortheastRichland Parish1 SE Rayville Muni Arpt 15 1721CST 0 0 0.00K 0.00K Hail (1.00)Nickel to quarter size hail fell in the area.An upper level disturbance that passed over the region on the 15th interacted with a very warm and humid air mass allowing asevere thunderstorms to develop during the afternoon. Nickel to quarter size hail fell underneath the storm.LAZ007>009-015>016-023>026Catahoula - Concordia - East Carroll - Franklin - Madison - Morehouse - Richland - Tensas - WestCarroll29301200CST1300CST 0 0 950.0K 0.00K Tropical StormTropical Depression Nine formed in the Atlantic, east of the Lesser Antilles, on the morning of August 21, 2012. Twelve hourslater, Tropical Depression Nine had strengthened into Tropical Storm Isaac. Isaac continued to track through the easternCaribbean Sea and Florida Straits while maintaining high end tropical storm strength. Just before noon central time on the 28th,Isaac was located about 75 miles south-southeast of the mouth of the Mississippi River(or about 160 miles southeast of NewOrleans) and was found to have reached hurricane strength with winds of 75 mph. An outer rain band from Isaac brought someshowers to portions of the ArkLaMiss during the afternoon of the 28th, while the center of Isaac was still churning in the Gulfof Mexico. At 6:45pm on August 28th, Hurricane Isaac made a brief landfall along the coast of Southeast Louisiana inPlaquemines Parish. Maximum sustained winds were 80mph at this landfall. Isaac did not remain over land for long as he wasback over water again by 9:00pm that same evening. Isaac made his second landfall along the coast of southeast Louisiana, justto the west of Port Fourchon, around 2:15am August 29th, again with maximum sustained winds of 80 mph.Isaac moved very slowly to the north and northwest over the course of August 29th, which made for prolonged impacts.Forward motion of about 5 mph lead to tremendous flooding issues for both Louisiana and portions of Mississippi south of I-20. Around noon on August 29th, Isaac was downgraded to a Tropical Storm, but this was not much relief to the many residentswho were being inundated with rain and wind. Storm total rainfall across portions of Marion County indicated at least 10 to 15inches fell. Numerous homes and buildings were flooded and some water rescues occurred in Lamar, Marion and Clarkecounties. Further to the north, flooding issues were not quite as bad with about 5 to 7 inches of rain falling from the I-20corridor and north. Tropical storm force wind gusts were noted as far north as Bolivar County, with the Golden Triangle regionnot seeing winds reach more than tropical depression strength. The worst of the wind was felt generally along and south of anaxis from Marion County to Adams County. Numerous trees were down in Adams County, leaving many without power forseveral days. Eighty percent of the roads were blocked in Franklin County due to downed trees.With all of the rain that fell, some of the area rivers filled quickly. Minor flooding was recorded on the lower Pearl River atRockport and Monticello, as well as on Bouie Creek at Hattiesburg and Tallahala Creek at Laurel. The biggest river impact inthe Jackson Hydrologic Service Area was on Black Creek at Brooklyn. Black Creek entered moderate flooding and finallycrested at 26.71 feet on August 31st at 5pm. This will go down as the second highest crest in history for this particular river andforecast point. This river flooding caused damage to 15 homes both upstream and downstream of the river gage.The winds and flooding were not all Isaac brought as a couple of tornadoes touched down in eastern Mississippi. Twotornadoes, one in Clarke County and one in Lauderdale County, occurred during the morning of August 30th. Both were ratedEF-1 with winds around 100 mph. The tornado in Clarke County, near Crandall, resulted in 3 injuries to residents of a mobilehome. One death attributed to Isaac occurred in Holmes County when a 64 year old woman was killed by a tree falling on hercar. Isaac finally moved out of the region by the afternoon of the 30th, and was downgraded to a tropical depression by lateafternoon on the 30th as it continued to track to the northwest into Missouri and the Ohio Valley.LOUISIANA, NorthwestNatchitoches Parish1 E Melrose 05 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Three trees were downed in Melrose, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Natchitoches Parish3 N Bellwood 05 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed south of Provencal, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.181

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NorthwestCaddo Parish1 S Jewella 05 1945CST 0 0 20.00K 0.00K Thunderstorm Wind (53EG)A large tree was downed on a house on Woodrow Street. There were no report of injuries.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Caddo ParishShreveport 05 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was downed on Unidilla Street.A frontal boundary was draped across the Middle Red River Valley of Northeast Texas, Southeast Oklahoma and SouthwestArkansas during the afternoon and evening hours of August 5th. Moderate instability was present across the region withtemperatures near 100 degrees and with ample moisture in place...scattered showers and thunderstorms developed across theFour State Region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Claiborne Parish2 NNW Spring Lake 06 1430CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A large tree limb was blown into a passing vehicle traveling on Hwy. 9. This limb shattered the windshield but the motoristwas not injured.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Webster Parish2 NE Leton 06 1430CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed near Shongaloo, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Webster Parish1 N Minden Webster Fld 06 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed on Dorcheat Road north of Minden, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Union Parish3 WNW Canbeal 06 1650CST 0 0 0.00K 1.00K LightningA grass fire broke out from a lightning strike on Creek Road north of Farmerville, Louisiana.Union Parish3 SE Quigley 06 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Power lines were downed on Deloutre Switch Road east of Farmerville, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Union ParishFarmerville 06 1655CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees and power lines were downed in Farmerville, Louisiana.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Ouachita Parish1 ENE Steven 06 1720CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was downed in the Chadwick area of West Monroe, Louisiana.Scattered showers and thunderstorms formed around the eastern periphery of an upper level ridge of high pressure thatextended from New Mexico and the panhandle of Texas into the Southern Plains and Lower Mississippi Valley. An upperlevel shear axis and trough of low pressure aloft over Arkansas and East Oklahoma help provide lift and instability as it shiftedeast into the area. A surface boundary over the same area (Oklahoma and Arkansas) also contributed to the development ofconvection. Strong to severe thunderstorms produce scattered damage to trees and power lines with most of the damage causedby wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.182

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NorthwestGrant Parish1 W Pollock 07 0900CST1100CST 0 0 0.00K 0.00K Flash FloodSeveral inches of water covered Stuart Lake Road resulting in the road having to be closed.Natchitoches Parish1 WSW Natchitoches 07 1621CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several trees were downed in Natchitoches, Louisiana.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Natchitoches Parish2 NE Natchitoches 07 1623CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were downed on Paul Jordan Road.A large ridge of high pressure in the upper levels of the atmosphere remained stationary across the Texas Hill Country intoNew Mexico. Flow around this high pressure ridge was from the northwest across the Lower Mississippi Valley and this meantthat weak disturbances moved into the region. These disturbances reacted with deep moisture to produce showers andthunderstorms across portions of the region, some of which produced flash flooding and severe weather. Note: The estimatedwind gust of 52 knots is equivalent to 60 mph.Webster Parish2 SSE Springhill 08 1808CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Large limbs and power lines were downed. A shed was also destroyed in Cullen, Louisiana.Strong to severe thunderstorms developed across the region during the afternoon and evening hours of August 8th. Thesestorms developed along previous remnant outflow boundaries. Moderate instability was present, along with good low levelmoisture. Hail and damaging thunderstorm wind gusts were the primary results. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.La Salle Parish1 N Jena 09 2210CST 0 0 10.00K 0.00K Thunderstorm Wind (53EG)A tree was downed on a home in Jena, Louisiana.A frontal boundary which had been stationary through much of the day across Southern Oklahoma into Southern Arkansasbegan to make southward progress into Northeast Texas and Northern Louisiana during the late afternoon and evening. Stormsdeveloped and produced damaging thunderstorm wind gusts in a very unstable atmosphere. Note: The estimated wind gust of53 knots is equivalent to 61 mph.Union Parish1 WNW Spearsville 09 2345CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down on Hwy. 15 between Spearsville and Hwy. 167.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Caddo Parish1 S Jewella 10 0130CST 0 0 20.00K 0.00K LightningLightning struck a metal vent on a home in the 2900 block of Chardonnay Circle in far Southeast Shreveport. This resulted in asmall fire that started in the attic. The home suffered minor fire and water damage. The family inside escaped with no injuriesreported.Cold front remained across Southwest Arkansas and Northeast Texas and served as a focus for strong to severe thunderstormsacross portions of the region. These storms formed in a moderately unstable environment and produced strong and damagingwind gusts as well as large hail and frequent cloud to ground lightning.Webster Parish1 E Springhill 12 1622CST 0 0 0.00K 0.00K Hail (0.75)Very isolated pulse type strong thunderstorms developed across portions of Northwest Louisiana during the late afternoon andearly evening hours of August 12th. These storms collapsed quickly and produced strong wind gusts and small hail.183

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, NorthwestBossier Parish1 ESE Bossier City 17 0530CST0745CST 0 0 100.00K 0.00K Flash FloodNumerous streets were flooded and closed due to high water. Numerous cars were stalled in high water on Benton Road nearOld Minden Road where the water was as high as the door handles on the vehicles. Numerous cars were also stalled out onShed Road at Doctor's Drive as well as another car stalled out on Shed Road near the railroad tracks.Caddo Parish1 S Jewella2 NE Cutoff Jct17 0530CST0745CST 0 0 100.00K 0.00K Flash FloodNumerous streets were flooded all across Shreveport and several were closed. High water rescues were needed for stalledvehicles on Southern Avenue as well as Caddo and Common Streets. Two feet of water entered the cafeteria at Fair Park HighSchool.Caddo Parish1 S Jewella 17 0530CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)A tree was downed on a home on Harvard Street in Shreveport, Louisiana.A weak stationary frontal boundary across Northeast Texas and Northwest Louisiana served as a focus for showers andthunderstorms, some of which produced strong and damaging wind gusts. Steering winds were weak and this resulted in thethunderstorm activity producing copious amounts of rainfall in a short amount of time. The end result was some flash floodingbeing reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lincoln Parish3 NE Vienna 18 0926CST 0 0 10.00K 0.00K LightningLightning struck a home on Pea Ridge Road setting fire to the laundry room in front of the residence. The home suffered minorsmoke damage and water damage.Showers and thunderstorms produced frequent cloud to ground lightning across portions of Northwest Louisiana during theearly morning hours of August 18th. One of these storms produced lightning that struck a home in Lincoln Parish, Louisiana.LAZ013-020>022Caldwell - Grant - Jackson - La Salle - Ouachita30 0500CST1500CST 0 0 0.00K 0.00K Tropical StormLa Salle Parish5 NW Summerville 31 0655CST0900CST 0 0 0.00K 0.00K Flash FloodExcessive heavy rainfall from the remnants of Tropical Storm Isaac resulted in several closed roads across La Salle Parish.Hurricane Isaac made its second landfall during the predawn hours of August 29th across Southeast Louisiana. This hurricanemoved very slowly north and east and was downgraded to a tropical storm later that same afternoon but due to its slownortheast movement...tropical storm force winds were not felt across portions of East Central and Northeast Louisiana until theearly morning hours of August 30th. These winds estimated to be sustained at 35 to 50 mph with gusts as high as 70 mphproduced winds that downed multiple trees across a few parishes. Excessive heavy rainfall also resulted well after the stormmoved north into Arkansas with flash flooding being reported across portions of the region on August 31 with the remnants toIsaac. Tropical Storm force winds were felt in Grant, Jackson, La Salle, Jackson, Caldwell and Ouachita Parishes.LOUISIANA, SoutheastSt. Charles Parish2 SW Destrehan 09 1215CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)Trees and power lines were knocked down. Time of the event was based on radar.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.184

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, SoutheastJefferson Parish2 W Estelle 09 1234CST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)Damage was reported to fencing and small objects in the 5400 block of Tusa Drive. Pictures were posted on social media. Timeof the event was estimated based on a radar fix.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Orleans ParishNew Orleans 09 1250CST1330CST 0 0 0.00K 0.00K Flash FloodSeveral streets were reported flooded throughout the metropolitan area. Rain rates of 2 inches per hour were reported during thepeak rainfall between 130 pm and 230 pm CDT.An unseasonably strong cold front triggered the development of severe thunderstorms during the late morning and afternoonhours.St. Charles Parish5 SE Des Allemands 10 0855CST 0 0 2.00K 0.00K Thunderstorm Wind (60EG)Reports were received of 6 trees blown down in the Bayou Gauche area.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.St. Tammany Parish3 S Goodbee 10 1222CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Entergy reported two power outages in the Madisonville area affecting 41 customers.A cold front moving through Louisiana triggered several severe thunderstorms. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.St. Tammany ParishSlidell Arpt 11 0535CST0620CST 0 0 0.00K 0.00K Flash FloodMultiple streets were impassible in Slidell, mainly across northern portions of the city. Over 5 inches of rain was measured atSlidell Airport in 2 hours and 15 minutes.A frontal boundary aided in the development of slow moving thunderstorms during the morning hours. Flash flooding wasreported in Slidell with these storms.St. Bernard ParishArabi 16 1424CST1500CST 0 0 0.00K 0.00K Flash FloodThe St. Bernard Sheriffs Department received several calls of water near homes in Arabi. Several streets were deeply floodedand impassable including portions of Judge Perez Drive, Norton Street and Doerr Drive.An upper level disturbance moving across the southern states aided the development of strong thunderstorms during theafternoon hours. Heavy rainfall accompanied the storms.LAZ034>037-039>040-046>050-056>072Ascension - Assumption - East Baton Rouge - East Feliciana - Iberville - Livingston - Lower Jefferson -Lower Lafourche - Lower Plaquemines - Lower St. Bernard - Lower Terrebonne - Northern Tangipahoa -Orleans - Pointe Coupee - Southern Tangipahoa - St. Charles - St. Helena - St. James - St. John the Baptist- St. Tammany - Upper Jefferson - Upper Lafourche - Upper Plaquemines - Upper St. Bernard - UpperTerrebonne - Washington - West Baton Rouge - West Feliciana28300400CST1200CST 0 0 117.3405M HurricaneLAZ040-049-057>062-064>070-072Ascension - Livingston - Lower Jefferson - Lower Lafourche - Lower Plaquemines - Lower St. Bernard -Lower Terrebonne - Orleans - Southern Tangipahoa - St. Charles - St. James - St. John the Baptist - St.Tammany - Upper Jefferson - Upper Lafourche - Upper St. Bernard - Upper Terrebonne28310600CST2330CST 3 0 493.5M 0.00K Storm Surge/Tide185

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, SoutheastOrleans Parish2 NNW New Orleans1 NE Vieux Carre29 0200CST0600CST 0 0 50.00K 0.00K Flash FloodHeavy rain associated with Hurricane Isaac produced deep street flooding in the New Orleans area.Isaac entered the Gulf of Mexico as a tropical storm on August 26, moving northwest after crossing Haiti, Cuba and the FloridaStraits. Isaac strengthened into a hurricane on the morning of the 28th when it was 75 miles south-southeast of the mouth of theMississippi River. Isaac made landfall in Plaquemines Parish as a Category 1 Hurricane near Southwest Pass of the MississippiRiver on the evening of the 28th. A second landfall occurred near Port Fourchon the following morning. The storm weakenedto a tropical storm on the afternoon of the 29th about 50 miles west southwest of New Orleans, and weakened further to atropical depression on the afternoon of the 30th near Monroe, Louisiana.The highest wind gust recorded on land in Louisiana was 75 knots, or 86 mph, measured by a portable weather station (TexasTech University) near Buras on the evening at August 28. The maximum sustained wind in Louisiana was 65 knots, or 75 mph,at the same portable weather station near Buras on the evening of August 28. There were several marine observations near thecoast that had slightly higher wind readings, but their observation heights were generally 80 ft or higher.Due to Isaacâs very large size, and slow forward speed, tropical storm force winds lasted in excess of 48 hours in many areasof coastal southeast Louisiana. Occasional hurricane gusts of 70 to 85 mph were recorded across southeast Louisiana during thenight of the Aug 28th and early on the 29th, especially south of Lake Pontchartrain. Interior areas of southeast Louisiana suchas around Baton Rouge and northward experienced tropical storm force winds. Widespread power outages occurred across thearea. Local utility companies reported over 700,000 customers were without power at the peak of the storm in southeastLouisiana. Generally, most of the wind damage was limited to downed trees and power lines, and roof damage caused by windand falling trees and tree limbs.The minimum sea level pressure measured from a land station was 965 mb on the morning of Aug 29 at a portable weatherstation ( Texas Tech Univ) located near Larose. A pressure of 974.3 mb was measured at a NOAA gage at Bayou Gauche onthe morning of August 29th. Close to the landfall location, a reading 969.8 mb was measured at the NOAA NOS station atPilots Station near Southwest Pass on the evening of the 29th shortly after the first landfall. The height of this measurementwas 24 meter or 79 feet.A storm tide of 8 to 13 feet occurred in eastern Plaquemines Parish and St. Bernard Parish. A representative maximum stormtide of 13.21 ft NAVD88 was measured at a USGS tide gage near Pointe a la Hache. A local levee was overtopped or breachedin the Braithwaite area of Plaquemines Parish early on August 29. A number of people had to be rescued from the flooded area,but a 60 year old woman and 52 year old man drowned in the storm surge.Significant impact also occurred around Lakes Pontchartrain and Maurepas with a storm tide of 5 to 9 feet. 5 to 10 thousandhomes were flooded in low lying areas of that border these lakes of the following parishes: St. Tammany, Tangipahoa,Livingston, Ascension, St James and St John the Baptist. Laplace in St. John the Baptist was especially hard hit with over5,000 homes flooded by storm surge. An additional storm surge fatality occurred in St. Tammany Parish on the morning of the30th when a 75 year old man drove his car into a storm surge filled ditch.Storm surge flooding also affected areas south and southwest of New Orleans with a storm tide of 4 to 7 feet. Roadways andlow lying property were flooded. Local levees around Lafitte and Myrtle Grove were overtopped and/or breached resultingflooding of numerous houses and property in this area.Many areas of southeast Louisiana received 8 to 12 inches of rain with a few locations having 15 inches of rain or more.Maximum storm total rainfall was 20.66 inches at the New Orleans Carrollton gauge on the Mississippi River. Rainfall run-offproduced moderate to major flooding on the Tangipahoa, Tchefuncte, Tickfaw, Amite, Pearl, Bogue Chitto and Bogue FalayaRivers. Storm surge and high tides restricted outflow of the rivers near the coast and lakes exacerbating flooding in those areas.Overall impacts of Isaac resulted in at least $600 million in damages in southeast Louisiana, 3 direct fatalities, and 2 indirectfatalities. Storm surge flooding accounted for the bulk of damage, estimated around $500 million and the three direct stormsurge fatalities in Louisiana. Winds accounted for a much lesser amount of slightly more than a $100 million. As stated earlier,these are early damage estimates and will likely be adjusted upward due to later damage assessments.During the recovery process there were two indirect fatalities. On Sept 1, A 67 year man was electrocuted when attempting torestore power to his house in Abita Springs, St Tammany Parish. On Sept 3, a 90 year old man died of heat related impacts inhis house in Marrero, Jefferson Parish, where power had not been restored.186

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, SouthwestCalcasieu Parish1 ENE Lake Charles Lake 07 1400CST 0 0 0.50K 0.00K LightningLightning struck Veterans Memorial Park in Lake Charles blasting apart brick work near a flag pole.Cameron Parish5 ENE Sweet Lake 07 1832CST1837CST 0 0 0.00K 0.00K Funnel CloudA public report was received of a large funnel cloud east of Sweet Lake. The funnel was visible for about five minutes beforedissipating.Cameron Parish12 WSW Hackberry 07 1845CST 0 0 1.00K 0.00K LightningLightning started a fire in north central sections of the Sabine National Wildlife Refuge. The fire burned over 2,300 acres andburned through the end of the week before going out.Calcasieu Parish1 ENE (LCH)Lk Charles Muni 08 0925CST0930CST 0 0 0.00K 0.00K Funnel CloudNWS employees observed a funnel cloud 4 miles south of the Lake Charles Regional Airport. The funnel was visible for about5 minutes before dissipating.Lightning strikes a Lake Charles park damaging brick work and starts a wildfire in a refuge. A couple of funnel clouds are alsoreported.Rapides Parish2 NNE Elmer 10 0100CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down in Elmer by a passing storm.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Rapides Parish1 E Deville 10 0506CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The sheriffâs department reported a tree down on power lines at the intersection of highways 1207 and 115.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Calcasieu Parish1 E De Quincy 10 1757CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A NWS employee reported a tree down along highway 12 east of Dequincy.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.St. Landry Parish1 N Whiteville 10 1852CST1855CST 0 0 0.00K 0.00K Hail (1.50)A report from the public was received of 1.5 inch hail in the town of Whiteville.Lafayette ParishYoungsville 11 0700CST0800CST 0 0 5.00K 0.00K Flash FloodA report was received of a bridge washed out due to heavy rain in the area.Strong thunderstorms in the area resulted in downed trees, large hail, and flooding.Cameron Parish1 ENE Holly Beach 18 1240CST1243CST 0 0 0.00K 0.00K Funnel CloudThe public reported a funnel cloud that went back into the clouds after a couple of minutes near Holly Beach.187

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LOUISIANA, SouthwestCalcasieu Parish1 NE Iowa 18 1338CST1340CST 0 0 0.00K 0.00K Funnel CloudThe Calcasieu Parish Emergency Manager reported a funnel cloud near Iowa.A couple of funnel clouds were reported across Southwest Louisiana.LAZ032-043>045-052>055Acadia - Evangeline - Iberia - Lafayette - Lower St. Martin - St. Landry - St. Mary - Upper St. Martin -Vermilion28301200CST1000CST 0 0 46.0K 0.00K Tropical StormLAZ028-029Rapides ParishKolin5 ENE WoodworthAvoyelles - Rapides29311200CST1800CST 0 0 15.0K 0.00K Tropical Storm31 0658CST1100CST 0 0 10.00K 0.00K Flash FloodHeavy rain from a band of the remnants of Issac flooded portions of Rapides Parish. The band sat over the area dropping over 6inches of rain at some locations. Several roads were closed along with structures flooded.Hurricane Issac made landfall in Southeast sections of Louisiana, however tropical storm conditions were felt well to the westof the center. No injuries or deaths were reported. Scattered power outages and downed trees occurred. As the system liftednorth of the area flash flooding occurred in Rapides Parish as rain bands sat over the same location. The highest surge occurredat Amerada Pass were a storm tide rose to 3.46 feet resulting in a surge of 2.18 feet. Tides were actually pushed out at mostcoastal locations while the hurricane was making landfall resulting in tides at some locations 1 to 3 feet below normal and boatsbeing stranded for several hours.MAINE, NorthAroostook CountyWytopitlock 03 1350EST 0 0 Thunderstorm Wind (52EG)Large tree branches were snapped along Route 171 by wind gusts estimated at 60 mph. The time is estimated.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Aroostook County2 WSW Jacobs 03 1435EST 0 0 Thunderstorm Wind (52EG)A birch tree was toppled on the Coffin Road by wind gusts estimated at 60 mph. The time is estimated.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Aroostook County1 SSE (CAR)Caribou Arpt 03 1442EST 0 0 Thunderstorm Wind (52EG)A wind gust estimated at 60 mph was reported at the Caribou Inn and Convention Center.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Aroostook CountyFt Fairfield 03 1450EST 0 0 Thunderstorm Wind (52EG)Power lines were brought down by wind gusts estimated at 60 mph. The time is estimated.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.188

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MAINE, NorthPenobscot CountyExeter Center 03 1610EST 0 0 Thunderstorm Wind (52EG)MAINE, SouthLarge tree branches were snapped along Exeter Road by wind gusts estimated at 60 mph. The time is estimated.Thunderstorms developed along a cold front crossing the region during the afternoon of the 3rd. Some of the storms weresevere producing damaging winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Somerset County6 N Athens 02 1930EST1933EST 0 0 0.00K 0.00K Hail (1.25)A severe thunderstorm produced 1.25 inch hail 6 miles north of Athens.A weak upper level trough crossing the region was the trigger for isolated thunderstorms during the afternoon and evening ofAugust 2nd. Although shear was weak across the region, dew points in the upper 60s to near 70 produced capes around 2000j/kg during the afternoon and evening hours. One isolated storm produced large hail in Somerset County.Sagadahoc County1 NW Richmond 03 1810EST1814EST 0 0 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree damaging a deck near Richmond.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sagadahoc County1 N Richmond 03 1815EST1818EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree blocking Alexander Reed Road in Richmond.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sagadahoc County1 W Richmond 03 1820EST1824EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree on wires on Batchelder Road near Richmond.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sagadahoc County2 W Richmond 03 1820EST1824EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree snapping a primary power line on White Road near Richmond.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lincoln County1 E Westport 03 1850EST1854EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires on Route 144 in Westport Island.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lincoln County1 N Boothbay 03 1900EST1906EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed numerous trees and wires all across Boothbay.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.189

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MAINE, SouthLincoln County2 NW Boothbay 03 1905EST1908EST 0 0 0.00K Thunderstorm Wind (52EG)A severe thunderstorm downed large limbs and destroyed storefront tents associated with a Rotary Club auction.A weak frontal boundary settling into the forecast area was the focus for showers and thunderstorms. Although shear was weakmostly sunny skies ahead of the front and capes nearing 2500 j/kg was enough to produce severe thunderstorms during theevening hours. Precipitable water values of 1.75 inches resulted in wet microbursts across portions of central coastal Maine.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Oxford County1 SSW West Fryeburg 05 1605EST1613EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorms downed trees and large limbs along Route 302 from the New Hampshire and Maine state line intoFryeburg.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Oxford CountyFryeburg 05 1605EST1610EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree on the intersection of Route 5 and 113 in Fryeburg.An approaching cold front spawned several lines of thunderstorms well ahead of the boundary during the afternoon of August5th. Increasing shear and dew points in the upper 60s to lower 70s provided plenty of fuel as these storms moved into NewHampshire during the late afternoon. A few of these storms held together as they moved into western Maine during the earlyevening. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Oxford County1 N North Woodstock 09 1400EST1414EST 0 0 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed large branches and several rows of grape vines at the Prospect Hill Winery in NorthWoodstock.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland County3 ESE Bridgton 09 2302EST2308EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm uprooted or snapped more than 20 large trees at the Vicki Lyn Campground near Bridgton.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland County1 S Harrison 09 2310EST2314EST 0 0 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed several trees damaging fencing in Harrison.A stalled frontal boundary across northern New England was the focus for shower and thunderstorm activity during theafternoon and late evening of August 9th. A few cells became severe, producing mainly wind damage. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.York County1 NE Sanford 17 2010EST2015EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed large branches in Sanford.A cold front approaching from the west on the evening of the 17th was moving into a marginally unstable airmass in place overNew Hampshire and western Maine. Showers and thunderstorms formed during the late afternoon ahead of this boundary andpushed through southern New Hampshire and southwest Maine during the evening hours. A few of these cells became severeproducing wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.190

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MAINE, SouthAndroscoggin County1 S Durham 31 1715EST1719EST 0 0 0.00K 0.00K Hail (0.88)A thunderstorm produced 0.88 inch hail in Durham.Sagadahoc County1 NW Topsham 31 1720EST1725EST 0 0 0.00K 0.00K Hail (0.75)A thunderstorm produced 0.75 inch hail in Topsham.Cumberland County1 N Brunswick 31 1722EST1726EST 0 0 0.00K 0.00K Hail (0.88)A thunderstorm produced 0.88 inch hail in Brunswick.Sagadahoc County1 NW Topsham 31 1725EST1729EST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm produced 1 inch hail in Topsham.Thunderstorm activity ahead of an approaching cold front became severe as upper dynamics enhanced these storms as theymoved into Maine. Hail was the main feature of these storms, ranging from a .25 to 1 inch in size.MARYLAND, CentralFrederick County1 WNW Lewistown 03 1518EST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)Damaging winds caused several trees to be knocked down. Damaging winds also caused a barn roof to come off.A weak surface trough combined with a upper level trough initiated isolated thunderstorms to form mainly over the higherterrain. A hot and humid air mass aided in the development of a few severe thunderstorms. Note: The estimated wind gust of52 knots is equivalent to 60 mph.Carroll County1 SW Uniontown 05 1445EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Trees down at Middleburg Road and Bark Hill Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Harford County2 S Norrisville 05 1537EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)Branches down due to wind which fell onto wires causing a fire at MD RT 23 and Harford Creamery Rd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Howard County1 WSW Guilford 05 1538EST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)Several trees down near intersection Murray Hill Rd and Vollmerhausen Drive.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Baltimore City (c) County1 W Gardenville 05 1554EST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)There were trees down at Loch Raven Blvd and Pentwood Rd from damaging winds.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.191

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, CentralBaltimore City (c) County1 N Holabird 05 1606EST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)Tree branches 5-6 inches in diameter were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Baltimore County1 SSE Essex 05 1611EST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)Four inch diameter tree limbs drown near intesection of Riverside Drive and Margaret Ave.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Baltimore County1 NNE Baltimore Martin St 05 1611EST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)Large tree down near intersection of Eastern and White Marsh Ave.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Harford CountyDarlington 05 1620EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There was a tree down at 1862 Darlington Road.A cold front moved eastward through the Mid Atlantic in the evening. Ample amounts of instability and moisture combined tocause severe thunderstorms with damaging winds and hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Calvert County2 SSW Buena Vista 07 1655EST1659EST 0.69 25 0 0 0.00K 0.00K Tornado (EF0)There was a waterspout that formed over the Patuxent River near Benedict Bridge in Calvert County, MD.A moist and unstable atmosphere was in place in the Mid Atlantic. Scattered showers and thunderstorms developed and werevery slow movers. Low level moisture and instability led to the tornadogenesis.Allegany CountyLong 09 1235EST 0 0 0.00K 0.00K Hail (1.00)Allegany CountyLocust Grove 09 1240EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)Large tree down onto a residence along Iowa Dr NW.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Baltimore County1 SSE Belmont 09 1620EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Tree down at Nuwood Drive and Baltimore National Pike.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery County1 N Homewood 09 1805EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Light pole knocked down near intersection of Rt 97 and Reedie Rd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery County2 NNW Layhill 09 1820EST 0 0 0.00K 0.00K Hail (1.00)Montgomery CountyNorbeck 09 1820EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Tree down near vicinity of Rt 650 at Georgia Ave.A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to thedevelopment of severe thunderstorms that produced damaging winds and hail. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.192

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, CentralWashington County1 SW Four Locks 10 1510EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)Large trees knocked down wires.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Washington County1 NE Corbett 10 1535EST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)Multiple trees down in Hagerstown and large trees down on East North Avereport.A cold front crossed the Mid Atlantic from the west in the afternoon. An abundant amount of instability and wind shear led tothe development of severe thunderstorms that produced damaging winds. Note: The estimated wind gust of 56 knots isequivalent to 64 mph.Allegany County1 NW Ridgeley 14 1519EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)Tree down across telephone lines near intersection of Drake Rd SE and Williams Rd SE.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Allegany County2 NW Ridgeley 14 1521EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Multiple trees down on Drake Rd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carroll County3 NNE Westminster Arpt 14 1804EST 0 0 0.00K 0.00K Hail (1.00)Baltimore County1 W Rogers Forge 14 2015EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Tree down on West Chesapeake Ave at Woodbine Ave. Verified from a picture on Patch.com website.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Baltimore CountyParkville 14 2100EST 0 0 0.00K 0.00K Hail (1.50)A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat.Baltimore County1 WSW Rogers Forge 14 2103EST2303EST 0 0 0.00K 0.00K Flash FloodThere were swift water rescues ongoing in Towson.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail. Some storms produced flash flooding.Baltimore City (c) County1 NNE Woodberry 14 2107EST 0 0 0.00K 0.00K Hail (1.00)Baltimore County1 ESE Carney 14 2109EST 0 0 0.00K 0.00K Hail (1.00)Baltimore County1 NW Poplar 14 2114EST 0 0 0.00K 0.00K Hail (1.00)Baltimore County1 ENE Parkville 14 2114EST 0 0 0.00K 0.00K Hail (1.00)A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat.193

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, CentralBaltimore CountyParkville 14 2121EST2321EST 0 0 0.00K 0.00K Flash FloodTaylor Ave was closed and Route 41 due to flash flooding. The road re opened at 7 am EDT.Baltimore County1 ESE Linhigh 14152200EST0000EST 0 0 0.00K 0.00K Flash FloodThere was water, at least one foot deep, flowing into a plant nursery. Flooding continued to around Wednesday.Baltimore CountyBradshaw 14152225EST0025EST 0 0 0.00K 0.00K Flash FloodFlash flooding caused a swift water rescue along Pulaski Highway near Baltimore and Harford county lines.Baltimore County2 ENE Padonia 14152327EST0127EST 0 0 0.00K 0.00K Flash FloodThe intersection at Route 146 and Old Bosley Road was closed due to flash flooding. This intersection reopened at 400 AMEDT.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail. Some storms produced flash flooding.Montgomery County1 NNE Randolph Hills 22 0545EST0745EST 0 0 0.00K 0.00K Flash FloodNorbeck Road was under water near Avery Road and Rock Creek.A upper level trough moved over the region. An area of low pressure and southerly flow helped develop isolated showers andthunderstorms with strong winds and heavy rain.Anne Arundel County1 W Riva 26 1245EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)There was a tree down onto power lines near the intersection of Hambleton Rd and Riva Rd.An area of low pressure was located over the Mid Atlantic which increased tropical southerly flow to the region. Heavy rainwas the main threat but isolated thunderstorms produced damaging winds and lightning. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Anne Arundel County1 NE Green Haven 26 1320EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There was a tree down near intersection of Woodlawn Ave and Duvall Highway.An area of low pressure was located over the Mid Atlantic which increased tropical southerly flow to the region. Heavy rainwas the main threat but isolated thunderstorms produced damaging winds and lightning. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Baltimore County1 WSW Woodlawn 26 1330EST1530EST 0 0 0.00K 0.00K Flash FloodRoute 122 closed at I-695 due to flash flooding.Baltimore City (c) County1 E Hillen 26 1330EST1530EST 0 0 0.00K 0.00K Flash FloodHeavy rain caused evacuations on the 2300 block on East Monument Street due to flash flooding.194

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, CentralBaltimore County1 WSW Shawan 26 1338EST1538EST 0 0 0.00K 0.00K Flash FloodA vehicle was stuck in high water near Tufton Ave and Mantua Mill Road.Anne Arundel County1 NE Lusby Xrds 26 1345EST1545EST 0 0 0.00K 0.00K Flash FloodThere was a road closed at the intersection of MD 450 and Crownsville Road.Anne Arundel CountyNorth Linthicum 26 1347EST1547EST 0 0 0.00K 0.00K Flash FloodHigh water was reported at Boulevard Place and South Old Annapolis Road.Baltimore County1 SE Stevenson 26 1355EST1555EST 0 0 0.00K 0.00K Flash FloodThere was a swift water rescue at Stevenson Road and Old Valley Road.Baltimore County1 NNW Halethorpe 26 1450EST1650EST 0 0 0.00K 0.00K Flash FloodThree of five lanes on the I-695 outer loop were closed due to flash flooding.Baltimore County1 ESE Shawan 26 1450EST1650EST 0 0 0.00K 0.00K Flash FloodRoute 25 was closed at Swawan Road due to flash flooding.Baltimore City (c) CountyRoland Park 26 1500EST1700EST 0 0 0.00K 0.00K Flash FloodBaltimore County1 NNE Pikesville1 E HowardvilleThere was water flowing over the road.26 1530EST1730EST 0 0 0.00K 0.00K Flash FloodRoute 129 was closed between Old Court Road and Slade Avenue.Baltimore County1 NNE Cockeysville 26 1540EST1740EST 0 0 0.00K 0.00K Flash FloodThere was a road closure at Route 45 at Beaver Run due to flash flooding.Baltimore CountyCockeysville 26 1633EST1833EST 0 0 0.00K 0.00K Flash FloodThere was high water at the intersection of Cockeysville Road and Beaver Dam Road.195

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, CentralBaltimore CountyHunt Vly 26 1633EST1833EST 0 0 0.00K 0.00K Flash FloodThere was high water at the intersection of Thornton Mill Road and York Road.Baltimore County1 SSW Ruxton 26 1643EST1843EST 0 0 0.00K 0.00K Flash FloodHigh water was present at the intersection of Falls Road and Old Pimlico Road.Baltimore City (c) County1 NNW Crisp1 NNE Brooklyn26 1700EST1900EST 0 0 0.00K 0.00K Flash FloodWater was flowing over the road.Calvert CountyAppeal 26 1730EST1930EST 0 0 0.00K 0.00K Flash FloodThere was high water near the intersection of Rousby Hall and Route 4.Baltimore CountyWhitehouse 26 1800EST2000EST 0 0 0.00K 0.00K Flash FloodRoute 25 was closed at Ridge Road due to flash flooding.An area of low pressure was located over the Mid Atlantic which increased tropical southerly flow to the region. Heavy rainwas the main threat but isolated thunderstorms produced damaging winds and lightning.MARYLAND, NortheastMDZ012-015-019-020Caroline - Kent - Queen Anne`s - Talbot01310000EST2359EST 0 0 0.00K 0.00K DroughtDrought conditions persisted over most of the Maryland Eastern Shore during most of August. The Maryland Department ofthe Environment issued a drought warning for Kent, Queen Anne's, Talbot and Caroline Counties on August 6th. The warningset a goal of reducing water usage by ten to fifteen percent. Drought relief arrived late in the month, but not in time to help thecrops, especially corn. Crop losses in Caroline County reached up to 75 percent. On August 29th, the United States Departmentof Agriculture Secretary Tom Vilsack issued a Disaster Designation for Maryland. Farmers are now able to get some financialrelief from the drought. The declaration covered all of the Eastern Shore counties. Because of the last week of the month, thestate averaged above normal precipitation for the month of August.Cecil County1 WSW Warwick1 SW Cayots03 1555EST1620EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees and wires in the southeastern part of Cecil County.A lee side trof and bay breezes helped trigger widely scattered strong to locally severe thunderstorms across the northern part ofthe Eastern Shore during the late afternoon of the 3rd. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cecil County1 NW Calvert 05 1625EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees in Rising Sun. One downed tree damaged a house. About 1,345 homes andbusinesses lost power.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.196

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, NortheastCecil County1 NE Port Deposit 05 1630EST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)A severe thunderstorm produced estimated wind gusts of around 65 mph in Port Deposit. Around 2,300 homes and businesseslost power.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Cecil CountyNorth East 05 1655EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked several trees south of Main Street in North East. About 3,325 homes and businesses lost powerin the area.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cecil County1 NNE Elkton 05 1655EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a couple of trees and wires in Elkton.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cecil County3 S Red Pt 05 1700EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked several trees along Turkey Point Road in Elk Neck. About 1,775 homes and businesses in thearea lost power.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cecil County2 NW Chesapeake City 05 1700EST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)Kent CountyFairleeChestertownA severe thunderstorm knocked several trees along Blair Shore Road south of Elkton. A couple of them fell onto and damagedhomes. No injuries were reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.05 1704EST1705EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees and wires in Kent County from Fairlee to Chestertown.A series of strong to severe thunderstorms that culminated with a squall late in the afternoon affected the Eastern Shore andCecil County the hardest. Delmarva Power and Light reported about 13,000 of its customers lost power in Cecil County, overtwenty-five percent of the county. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Queen Anne's County1 N Hope 07 1830EST 0 0 0.00K 0.00K Funnel CloudA funnel cloud was sighted over a farm field in Eastern Queen Anne's County near Hope east of U.S. Route 301 and south ofPrice Station Road. Because of excellent visibility, it was seen from Caroline County as well as motorists traveling on U.S.Route 301.One thunderstorm that formed near a stationary front produced a funnel cloud over eastern Queen Anne's County.Caroline CountyGreensboro 10 0830EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in Greensboro. The same cluster of showers and thunderstorms caused somestreet flooding in Preston.A large cluster of showers and thunderstorms, one of which was severe, moved through the Eastern Shore during the morningon the 10th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Talbot County2 S Unionville 15 1759EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down trees and wires near Tunis Mills.An approaching cold front helped trigger scattered strong to isolated severe thunderstorms across th Eastern Shore mainlyduring the latter half of the afternoon and the early part of the evening on the 15th. Note: The estimated wind gust of 52 knotsis equivalent to 60 mph.197

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, NortheastCaroline County3 NW Harmony1 WNW Choptank26 1300EST1500EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in western Caroline County. Doppler Radar storm totalestimates were around 8 inches.Talbot County2 ENE MatthewsCordova26 1345EST1800EST 0 0 500.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in and around Easton. About 16 roadways in and out of Eastonwere flooded and closed including U.S. Route 50. Water rescues were performed on Washington Street and Elliot Road. Mostroadways were able to reopen by 10 p.m. EDT that evening. The Talbot Town Shopping Center suffered flood damage as somebusinesses had two feet of water within them. The Talbot County Visual Arts Center in Easton was closed because of flooddamage. In Cordova, vehicles were abandoned and rescues were performed. Maryland State Route 333 was flooded in Oxford.There were 70 flood related calls in Talbot County. Two roadways were washed out and two small bridges were also flooded.Rainfall totals included 7.37 inches in Easton.Queen Anne's County1 E Bryantown1 ENE Carmichael26 1445EST1700EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in southern Queen Anne's County. Doppler Radar storm totalestimates were around 6 inches.Queen Anne's County2 NE CarmichaelQueenstown26 1445EST1700EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused small stream and poor drainage flash flooding in central Queen Anne'sCounty. Doppler Radar storm total estimates were around 5 inches. Storm total rainfall included 5.46 inches in Queenstown.The combination of a decaying low pressure system in eastern Virginia and convergence along bay breeze fronts causedthunderstorms with torrential downpours to form on the Eastern Shore. Flash flooding occurred in parts of Talbot, QueenAnne's and Caroline Counties where Doppler Radar storm total estimates reached 6 to 8 inches.Talbot County1 SSE Easton Arpt 26 1550EST 0 0 10.00K 0.00K LightningA lightning strike damaged a home on Chapel Farm Drive in Easton.Talbot CountyEaston 26 1551EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down trees and wires in and around Easton. Easton Utilities and Choptank Electric reportedscattered outages caused by the damaging winds and lightning throughout the county.In addition to flash flooding, the thunderstorms caused isolated wind damage in the southern Eastern Shore during theafternoon of the 26th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Talbot County1 NE Skipton3 WNW Stumptown26 1615EST1800EST 0 0 25.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in and around Saint Michaels. Vehicles were abandoned andrescues were performed. Event precipitation totals included 6.10 inches in Saint Michaels.The combination of a decaying low pressure system in eastern Virginia and convergence along bay breeze fronts causedthunderstorms with torrential downpours to form on the Eastern Shore. Flash flooding occurred in parts of Talbot, QueenAnne's and Caroline Counties where Doppler Radar storm total estimates reached 6 to 8 inches.198

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MARYLAND, NortheastTalbot CountyCordova 26 1638EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down trees and wires in and around Cordova.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Talbot CountyCordova 26 1640EST 0 0 10.00K 0.00K LightningA lightning strike damaged a home in Cordova.In addition to flash flooding, the thunderstorms caused isolated wind damage in the southern Eastern Shore during theafternoon of the 26th.Caroline County3 NW Harmony4 W Oakland26 1745EST2100EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused small stream and drainage flash flooding in northern Caroline County.Doppler Radar storm total estimates were around 7 inches. Event precipitation totals included 5.30 inches in Denton.The combination of a decaying low pressure system in eastern Virginia and convergence along bay breeze fronts causedthunderstorms with torrential downpours to form on the Eastern Shore. Flash flooding occurred in parts of Talbot, QueenAnne's and Caroline Counties where Doppler Radar storm total estimates reached 6 to 8 inches.MARYLAND, SouthWorcester County1 N Berlin 25262150EST0030EST 0 0 0.00K 0.00K FloodRoad closures were reported at Routes 113 and 50 due to high water. There were 15 to 20 rescues from vehicles.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused floodingacross portions of the Lower Maryland Eastern Shore.Worcester County1 N Berlin 26 0600EST 0 0 0.00K 0.00K Heavy RainMASSACHUSETTS, Central and EastEmergency management official measured 13 inches of rain from his cocorahs gage.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of the LowerMaryland Eastern Shore.Franklin County1 ENE Rowe 04 1520EST 0 0 500.00K 0.00K LightningRowe Elementary School was completely destroyed by fire after being struck by lightning. Almost 125 firefighters from 19neighboring towns as well as towns in nearby Vermont helped to fight the fire, but some were delayed by the heavy rain thatfell at the same time. Some firefighters took nearly 45 minutes to reach the scene. Approximately 70 students attend theelementary school.Franklin CountyCharlemont 04 1531EST1632EST 0 0 0.00K 0.00K FloodRoute 2 was flooded with 2 feet of water. Firefighters trying to get to the Rowe Elementary School were delayed due to theflooding.Worcester County1 SW Lunenburg 04 1657EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Two trees were downed onto wires by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.199

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastMiddlesex CountyDracut 04 1716EST 0 0 1.00K 0.00K LightningLightning struck the chimney of a house on Mill Street and damaged the wood stove.A warm front moved north through southern New England producing scattered showers and thunderstorms across a very warm,humid environment.Franklin County1 S Greenfield 05 1345EST 0 0 2.00K 0.00K Thunderstorm Wind (45EG)Franklin County1 SE East Northfield1 W North BernardstonA tree on Silver Street was uprooted.Note: The estimated wind gust of 45 knots is equivalent to 52 mph.05 1347EST1400EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees on Routes 10 and 142 in Bernardston were downed by thunderstorm winds, closing the roads. A large tree and wireswere downed on Route 142 at Wozniak Road in Northfield. In Leyden, a tree on East Hill Road was downed on wires.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampshire CountyHadley 05 1405EST 0 0 5.00K 0.00K Thunderstorm Wind (40EG)A tree on Bay Road in Hadley was downed onto a house.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Worcester CountyGrafton 05 1510EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees on Route 122 were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampden County2 NE West Springfield 05 1552EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Two large limbs were downed on West School and Norman Streets.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampden CountyAgawam 05 1556EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Trees on Rowley and Suffield Streets and Barn Road were downed by thunderstorm winds. Wires were also downed at theintersection of Barn Road and Rowley Street.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampden County2 NE West Springfield 05 1600EST1 ENE Agawam Bowles Fld Ar1700EST 0 0 5.00K 0.00K FloodIn West Springfield, West School Street was flooded and impassable. The River Street underpass also was flooded with a carstuck in the floodwaters. Meadow Street in Agawam was flooded and impassable.Hampden County1 E Longmeadow 05 1600EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Large limbs on Western and Claremont Streets were downed by thunderstorm winds. A tree on Weoodlawn and South ParkRoads also was downed.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampden CountyAgawam 05 1615EST 0 0 15.00K 0.00K LightningLightning struck a tree in the backyard of a house then jumped to the house resulting in a roof fire.200

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastHampden CountyBrimfield 05 1642EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree on Battery Avenue was downed by thunderstorm winds.A cold front approaching from the west provided enough lift for showers and thunderstorms. As this front was approaching theatmosphere was sufficiently unstable across western Massachusetts, southwestern New Hampshire and western Connecticut forstorms to become severe. Most damage was the result of strong to damaging winds. Note: The estimated wind gust of 50 knotsis equivalent to 58 mph.Hampshire CountySouthhampton 10 1208EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Several trees on Maple and High Streets and Clark and Russellville Roads were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampshire CountyHadley 10 1230EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)A large limb on Mockingbird Lane was downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Norfolk County1 S Foxborough 10 1504EST 0 1 0.00K 0.00K LightningLightning struck a house at the intersection of Mechanic and Hope Streets. It struck a tree which imploded sending pieces ofwood onto the deck. The lightning then traveled through the yard, creating a 25 foot trench leading to a house and destroyingthe wooden stairs on the deck and blowing gutters off the house. A 74 year old woman who lives in the house was taken to thehospital with chest pains.Bristol County1 NE Watuppa1 SW North Westport10 1612EST1712EST 0 0 10.00K 0.00K Flash FloodIn Fall River, numerous streets were flooded including Plymouth Avenue with 4 feet of water, Davol Street, and PresidentsAvenue with 1-2 feet of water. A car was stuck in the flood waters on Davol Street. St. Anne's Hospital had to divertemergency traffic due to flooding in the emergency room several inches deep. Eighteen patients in the ER were moved to ahigher floor. The emergency room reopened at 7:30am after it was cleaned up.Bristol County1 SW Buffinton Corner 10 1619EST1719EST 0 0 5.00K 0.00K Flash FloodCounty Street in Somerset was closed due to two feet of water over the road from the overflowing of Buffington Brook.Florida Avenue and Gibbs Street were flooded. In Swansea, the intersection of Macomber and Puffer Avenues flooded. Route6 in front of the Oriental Pearl Restaurant and the parking lot at Swansea Crossing shopping plaza flooded. Manhole covers onRoute 118 were lifted by flood waters.Bristol County1 NNE South Attleboro 10 1631EST1731EST 0 0 0.00K 0.00K Flash FloodRoute 1A was flooded over the curbs.Bristol CountyRaynham 10 1647EST1747EST 0 0 20.00K 0.00K Flash FloodRoute 138 in Raynham was flooded near the Market Basket. A car was stuck in flood waters on Tremont Street. Theoccupants of the car were trapped and had to be rescued. Weir Street was impassable due to flooding. Powderhorn Drive wasimpassable due to 12 to 15 inches of water over the road.Bristol County1 E Taunton 10 1655EST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)201

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastAn NWS storm survey team determined a microburst occurred in Taunton. Winds were estimated to be 70 to 80 mph. Sixmaple trees were uprooted on Tremont Street along Cobbs Creek, landing on four vehicles in the driveway behind a house.Several large branches were snapped and small sections of siding were torn off the house. A large spruce tree eight inches indiameter was blown onto a house and many other large tree limbs were snapped off trees. The house sustained minor damage.Two more trees fell behind this house. Numerous tree branches were downed. Behind another house, a tree fell taking down aportion of the back fence. On Eldridge Street, a silver maple tree about six inches in diameter was snapped near the base andfell onto a house. Several large branches were downed in this area as well. A sheet metal shed was blown into the next yard.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Worcester CountyHolden 10 1657EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Several trees were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bristol County1 E Taunton 10 1721EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)A tree at the intersection of Warren and Shore Streets was downed by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Bristol County1 E Taunton 10 1729EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Wires on Fremont Street were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Norfolk County1 SSW Wellesley 10 1730EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A tree and wires were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Plymouth CountyWhitman 10 1735EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)A large limb in front of town hall was downed by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Plymouth County1 SE Stanley 10 1737EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)A transmission line on Mill Street was downed resulting in widespread power outages.Norfolk CountyWest Stoughton2 SSW StoughtonNote: The estimated wind gust of 50 knots is equivalent to 58 mph.10 1752EST1852EST 0 0 35.00K 0.00K Flash FloodA car was trapped in floodwaters on Independence Avenue in Quincy. In Weymouth, Fogg Street was flooded with severalinches of water at the entrance to the South Shore Emergency Room entrance. Columbian Street at Nevin Road was floodedwith four feet of water. Bodwell Drive in Avon was flooded with several cars stuck in flood waters. Several feet of water onRoute 37 in Braintree near the Mutual gas station closed the road. A car was stuck in flood waters at the intersection of UnionStreet and Grossman Drive. In Stoughton, three to four inches of water flooded the travel lanes on Route 27.Plymouth County1 WSW Montello 10 1802EST1902EST 0 0 30.00K 0.00K FloodSeveral streets were flooded and impassable including North Main Street near Lansdown Street and Warren Avenue. TremontStreet was flooded with more than a foot of water. A car drove into two feet of water on Ettrick Street and became stuck. Twopeople had to be rescued from the car. Westgate Drive was flooded with three feet of water, with several cars stuck in the floodwaters.202

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastEssex CountyLynn1 ENE West Lynn10 1804EST1904EST 0 0 0.00K 0.00K FloodCommercial Street underpass was flooded and impassable. The Nahant Circle was flooded with one foot of water.A series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes. These provideda focus for showers and thunderstorms to develop across southern New England. Southerly winds drew tropical moisture overthe area, resulting in very heavy rain in showers and thunderstorms that developed. In addition, strong winds in the upperlevels and 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms.Franklin CountyRowe 11 1611EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Four to five inch diameter limbs were downed by thunderstorm winds on a farm on Dell Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampshire County1 W Bay State 11 1701EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)Two power poles and high tension wires on Dimock Street were downed by thunderstorm winds.An approaching cold front provided enough lift for showers and thunderstorms to develop. A few of these storms becamesevere, producing damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampden CountyMonson 12 0600EST0900EST 0 0 98.00K 0.00K Flash FloodThree to four inches of rain fell in about 2 hours resulting in the overflowing of several brooks. One of these was ChicopeeBrook, which forced the closure of Route 32/Palmer Road. Three roads were washed out and in need of repairs due to theflooding. These include Beebe Road, Palmer Road, and Chestnut Street. Chestnut Street and Beebe Road were closed andFenton Road was open in only one lane. In addition, a few basements were flooded. In total, nine roads were closed but allwere reopened to emergency vehicles and local traffic by 6 pm.A warm and unstable airmass over Southern New England coupled with an approaching cold front to produce showers andthunderstorms. A very moisture laden atmosphere allowed several inches of rain to fall in a very short period of time resultingin flash flooding.Hampden County2 NE West Springfield1 WNW Brightwood15 0435EST0535EST 0 0 5.00K 0.00K FloodOne car was stuck at a restaurant on Route 5. Water was up to the floor boards of another car on Prospect Street. TheAutomated Surface Observing System at Barnes Municipal Airport (KBAF) recorded 1.14 inches of rain in 20 minutes and atotal of just under 1.50 inches.Hampden County2 NE West Springfield 15 0436EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)Large tree limbs on Bear Hole Road and Prospect Streets were downed by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Norfolk County1 S Foxborough 15 0649EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)An eight inch diameter branch on Elm Street was downed onto a wooden fence by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Norfolk CountyWinslows 15 0700EST 0 0 30.00K 0.00K LightningTwo houses were struck by lightning in Norwood. One on Lincoln Street, the other on Hawthorne Street. Minor damage wassustained by both.203

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastBristol County1 N Attleboro 15 0720EST0820EST 0 0 5.00K 0.00K FloodPleasant and Forest Streets were flooded. A car was stuck in one foot of water on Forest Street.Norfolk CountyWollaston 15 0805EST0905EST 0 0 0.00K 0.00K FloodStandish Avenue near Wollaston Beach and Hancock Street was closed due to flooding.Bristol County1 WSW South 15 0825EST0925EST 0 0 15.00K 0.00K FloodInterstate 195 eastbound was flooded near the entrance to the Braga Bridge. Davol Street near Battleship Cove also wasflooded with several cars stuck in the waters. Roosevelt Street was flooded with eight inches of water.Bristol County1 NE South Dartmouth 15 0840EST0940EST 0 0 0.00K 0.00K FloodCove Road was closed due to one foot of water over the road.Showers and thunderstorms developed in a warm, moist atmosphere. Cold air aloft contributed to an unstable environmentresulting in severe thunderstorms. Moisture was such that rainfall rates were high enough to result in flash flooding.Bristol CountyTaunton 15 1345EST1445EST 0 0 10.00K 0.00K FloodOne lane of Washington Street, between Court and Pleasant Streets, collapsed into a sinkhole seven feet in diameter and eightfeet deep.Hampden County1 NNW Westfield 15 1714EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Hampden County2 E Ludlow Center2 SSE East LongmeadowTrees on North Road were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.15 1809EST1909EST 0 0 5.00K 0.00K Flash FloodChapin Street and the intersection of East and Birch Streets in Ludlow were flooded with one foot of water. Chapin Street wasclosed due to the flooding. A car was stuck in flood waters at the intersection of East Mountain Road and Route 20 inWestfield. Portions of Route 10 in Southwick were flooded with six inches of water.Bristol County1 NNW Fall River 15 2120EST2220EST 0 0 0.00K 0.00K FloodDavol Street was closed due to flooding near the Global Gas Station.Worcester CountyLincoln SquareWorcester15 2148EST2300EST 0 0 10.00K 0.00K FloodThe intersection of Plantation Street and Route 70 was flooded with two feet of water. Local street flooding occurred at theintersection of Ashton and McKinley Streets. One car was stuck in standing water on Lincoln Street.204

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MASSACHUSETTS, Central and EastAfter thunderstorms occurred during the early morning hours, clouds cleared allowing for ample sunshine. This resulted in theatmosphere destabilizing. A cold front moved through the region producing showers and thunderstorms. Some of these stormsbecame severe producing damaging winds. High rainfall rates in a moisture laden atmosphere resulted in flash flooding aswell.Barnstable CountyEastham 28 0930EST 0 2 0.00K 0.00K LightningA 62 year old woman and a 4 year old girl were struck by lightning while getting out of a car. The woman was holding anumbrella for the girl when lightning struck. Both were transported to Cape Cod Hospital for evaluation but were released withno injuries.A cold front moved through Southern New England bringing showers and thunderstorms to the region.MASSACHUSETTS, WestBerkshire County1 WSW North Adams 11 1334EST1634EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along Route 8 in North Adams due to heavy rainfall from repeated thunderstorms. Route 8 wasclosed due to the flooding.Berkshire County1 W North Adams 11 1427EST1727EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported in North Adams due to heavy rainfall from repeated thunderstorms. Several roads in the downtownportion of the city were closed due to the flooding.Berkshire County1 SE Cheshire 11 1540EST 0 0 Thunderstorm Wind (50EG)Trees were reported down and on a house due to thunderstorm winds in Cheshire.Ample low level moisture was in place across the region ahead of a slow moving frontal boundary. Although skies werecloudy to start the day, breaks in the clouds towards the noon hour allowed for some instability to develop. With the largeamount of moisture in place and an unstable atmosphere, slow moving thunderstorms formed. Some of these thunderstormscontained gusty winds, which caused damage to trees and power lines.As thunderstorms with heavy rainfall moved over the same areas repeatedly, flash flooding occurred across portions ofBerkshire County. Some areas received over four inches of rain, with the highest amount being 5.20 inches in Hancock.Thunderstorm activity waned by evening due to the frontal boundary crossing the region. Note: The estimated wind gust of 50knots is equivalent to 58 mph.MICHIGAN, EastBay County2 N Essexville5 ESE Aplin Beach11 1015EST2300EST 0 0 500.00K 0.00K FloodMICHIGAN, Extreme SouthwestFour to seven inches of rain over the Tri-Cities region fell within a 24 to 48 hour period, resulting in flooding in low lyingareas, homes and roads across parts of Bay County.Berrien County1 NW Jerry Tyler Meml Arp 04 1733EST1734EST 0 0 0.00K 0.00K Hail (1.50)A trained spotter reported ping pong ball size hail.205

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MICHIGAN, Extreme SouthwestBerrien County1 NW Jerry Tyler Meml Arp 04 1733EST1734EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)A trained spotter reported trees down in the area. In addition, tree limbs were blown down ranging from six inches to one footin diameter.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Berrien CountyGalien 04 1738EST1739EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)The public reported a large tree branch down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cass CountyEdwardsburg 04 1752EST1753EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)The public reported four trees were blown down.An unstable atmosphere was in place ahead of a strong cold front moving into the region from the west and a weak warm frontlocated across northwestern Indiana. These features combined with a high shear environment supported development ofthunderstorms across northern Illinois. The storms congealed into a QLCS which producing isolated damaging winds and largehail. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.MIZ077Berrien05 0830EST 2 0 0.00K 0.00K Rip CurrentStrong north to northwest winds across Lake Michigan caused wave heights in excess of 8 feet along the south-eastern parts ofthe lake shore. Local and Coast Guard officials reported two rip current drownings. The first occurred at Tiscornia Beach in St.Joseph when a swimmer became overcome by the high waves. The 41 year old male, from Illinois, was unconscious in 12 feetof water. Although attempts to revive him occurred, he passed away en route to the hospital. Shortly, after this rescue, officialsreported a man drown while saving two children from the lake. Around 10:30 am, the 50 year old pediatric surgeon observedtwo young kayakers caught in the high waves and rip currents. He swam to them and was able to aid them. However, he wassubsequently caught in the same conditions and drown. M41IWMICHIGAN, NorthMIZ025Benzie04 1540EST 1 0 0.00K 0.00K Rip CurrentWave action produced by onshore winds of 15 to 20 mph contributed to rip current development on Lake Michigan. M40IWMIZ020Leelanau30 1630EST 1 0 0.00K 0.00K Rip CurrentSouthwest winds of 20 to 30 mph producing significant wave action and strong currents along the Lake Michigan coast.M16IWMICHIGAN, UpperGogebic County10 WNW Junet 01 1106CST1109CST 0 0 0.00K 0.00K Hail (0.75)The spotter near Little Girls Point reported three quarter inch diameter hail on the morning of the 1st.A thunderstorm dropped three quarter inch diameter hail near Little Girls Point on the morning of the 1st.Menominee County1 SE Daggett 13 1628CST1633CST 0 0 0.00K 0.00K Hail (0.75)The spotter near Stephenson reported pea to dime sized hail covered the ground. The spotter's yard was flooded with a rain/hailslush. Winds from the thunderstorm were estimated around 40 mph.A thunderstorm dropped pea to dime sized hail near Stephenson in Menominee County on the afternoon of the 13th.206

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MICHIGAN, WestMason County3 WNW Hamlin Lake 02 0440EST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)MINNESOTA, Central and South CentralThe Ludington daily news reported numerous trees down in Ludington State Park that caused damage to camper trailers,vehicles and a park building.An isolated severe thunderstorm produced wind gusts estimated at 60 to 70 mph that brought down numerous trees inLudington State Park overnight, some of which fell on camper trailers, vehicles and a park building. Note: The estimated windgust of 60 knots is equivalent to 69 mph.Stearns County3 W St Nicholas 01 0845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down near the intersection of Highway 22 and 171 Street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Stearns CountyRichmond 01 0845CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees and power lines were blown down around Richmond.Several thunderstorms developed during the morning of Wednesday, August 1st. One of the thunderstorms briefly becamesevere near Richmond, Minnesota, where several trees blew down, and reports of small boats flipped over. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.Yellow Medicine County4 SSW St Leo 01 1617CST 0 0 0.00K 0.00K Hail (1.75)Redwood County3 WNW Redwood Falls 01 1739CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)A trained spotter measured a wind gust of 67 mph on the west side of Redwood Falls.Note: The measured wind gust of 58 knots is equivalent to 67 mph.Redwood County1 NW Redwood Falls 01 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)Note: The measured wind gust of 57 knots is equivalent to 66 mph.Redwood County1 NW Redwood Falls 01 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)Note: The measured wind gust of 61 knots is equivalent to 70 mph.Redwood County1 NW Redwood Falls 01 1751CST 0 0 0.00K 0.00K Thunderstorm Wind (69MG)Note: The measured wind gust of 69 knots is equivalent to 79 mph.Redwood County1 NW Wabasso 01 1801CST 0 0 0.00K 0.00K Hail (0.75)Brown County1 NW Springfield 01 1825CST 0 0 0.00K 0.00K Hail (0.75)Rice County1 S Northfield 01 2024CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree limb, approximately 50 feet in length was blown down near Northfield.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.207

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralRice County2 S Northfield 01 2030CST 0 0 0.00K 0.00K Hail (1.00)Rice County2 ENE Dundas 01 2034CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was uprooted east of Dundas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Goodhue County1 S Zumbrota 01 2110CST 0 0 0.00K 0.00K Hail (0.75)Wednesday afternoon, August 1st, thunderstorms developed near Canby, Minnesota, and moved to the east-southeast andintensified. Large hail was the first to develop early in the storms history, then it began to bow out and move to the eastsoutheastacross portions of west-central and southwest Minnesota, where several wind gusts over 60 mph occurred. Thehighest wind gust occurred at 551 PM CST at the Redwood Falls regional airport where a measured 79 mph wind gustoccurred. Eventually, small segments of this bow echo moved to the east and caused damage near Northfield.Swift County3 N Benson Arpt 03 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Several large trees were blown down north of Benson airport.Pope County4 S Long Beach3 S GlenwoodNote: The estimated wind gust of 56 knots is equivalent to 64 mph.03 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were blown down near the southeast side of Lake Minnewaska.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Stearns CountyRichmond 03 2100CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were uprooted near Richmond.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Stearns County1 E Marty 03 2115CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Several trees were blown down east of Marty.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Stearns County1 SE Avon 03 2115CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few large trees were blown down in Avon.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Mcleod County1 WNW Hutchinson 03 2125CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A few large tree branches were blown down and blocking a road near Kay Street and Lea Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wright County4 W Silver Creek 03 2125CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down on Hoyer Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sherburne County2 NNE Cable 03 2130CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.208

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralStearns CountySt Stephen 03 2130CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Several large trees were blown down near St. Stephen.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Morrison County1 E Camp Ripley Jct 03 2135CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down southeast of Fort Ripley.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carver CountyWaconia 03 2145CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.Sibley County1 WSW Henderson 03 2145CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down across Highway 19.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Benton County1 SE Foley 03 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down in Foley.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Blue Earth County1 S Mankato 03 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down across Baker Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carver County2 NW Victoria 03 2156CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)Multiple tents were blown over at a campground in Carver.Note: The measured wind gust of 56 knots is equivalent to 64 mph.Carver County3 SE Zumbra Hgts 03 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A few trees were blown down near Hazeltine Lake in Chanhassen.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hennepin County2 SW Mound 03 2200CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)An 18-inch diameter tree was blown down on a home southwest of Mound.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wright County1 N Albertville 03 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A street light was blown down in Albertville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Anoka County3 NE Anoka 03 2205CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Round Lake Blvd, and 143rd Street in Andover.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.209

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralAnoka County2 ESE Coon Rapids 03 2205CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Egret and Highway 10 in Coon Rapids.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Anoka County1 NW Fridley 03 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down at the intersection of Highway 47 and 69th Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Anoka County1 NNW Ham Lake 03 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Several large trees were blown down in Ham Lake near Highway 65 and County Road 16.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Anoka County3 ESE Bethel 03 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down across Highway 65 and County Road 24 in East Bethel.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mille Lacs CountyForeston 03 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were blown down east of Foreston.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Hennepin County2 NE Bloomington 03 2212CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several large tree branches were blown down in Bloomington, near 92nd and Knox Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Anoka County1 SE Ham Lake 03 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Bunker Lake Blvd, and Radisson Road, in Ham Lake.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hennepin County2 ENE Bloomington 03 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A 36-inch diameter tree was toppled near Blaisdell and 96th Street in Bloomington.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Scott County3 SSW Savage 03 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near 144th Street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hennepin CountyMinneapolis 03 2219CST 0 0 0.00K 0.00K Hail (0.88)Anoka County4 NNE Lino Lakes 03 2220CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A 6-inch diameter tree was blown down, north of Lino Lakes.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.210

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralHennepin County2 SE Minneapolis 03 2220CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A 10-inch diameter tree branch was blown down in downtown Minneapolis, near the intersection of 2nd Street, and 11thAvenue South.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Isanti County1 E Cambridge 03 2220CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down on Emerson Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dakota County1 NE Lakeville 03 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few large trees and power lines were blown down around Lakeville.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Hennepin County2 ENE Edina 03 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A few large tree limbs were blown down around Edina.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hennepin County2 ENE Edina 03 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A 6-inch diameter tree branch was blown down near 53rd and Upton in Edina.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Anoka County7 SE Linwood 03 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down in Columbus.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dakota CountyMendota Hgts 03 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few large trees were blown down in Mendota Heights.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Ramsey County1 S Falcon Hgts 03 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)A storm chaser measured a wind gust of 51 knots, by a hand-held anemometer.Note: The measured wind gust of 51 knots is equivalent to 59 mph.Ramsey County1 SW North St Paul 03 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A 10-inch diameter tree was toppled.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Rice CountyFaribault 03 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A two foot diameter tree was blown down across 4th Street and 2nd Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.211

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralDakota County3 NW Farmington 03 2235CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Washington County4 SSE Newport 03 2235CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A 6-inch diameter tree was blown down at Granada and 90th Street in Cottage Grove.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chisago County3 S Lindstrom 03 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several large tree limbs were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington County2 S Newport 03 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were blown down in St. Paul Park.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Washington County1 E Bayport 03 2245CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Goodhue County1 ENE Trout BrookRed WingA few trees were blown down.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.03 2310CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several large tree branches were blown down in Red Wing.Initially, severe thunderstorms developed in north central South Dakota, and moved east-southeast across eastern South Dakota,and produced large hail and damaging winds before 6 pm. These storms moved and formed a large line of intensethunderstorms across west-central Minnesota, which moved eastward rapidly across southern Minnesota. A few severe windgusts occurred near Benson, but the strongest storms began across east-central Minnesota, and produced numerous winddamage reports across portions of the Twin Cities, near St. Cloud and portions of west-central Wisconsin before it decreased inintensity after midnight. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Freeborn County2 WNW Gordonsville 08 1550CST1555CST 0 0 0.00K 0.00K Hail (0.75)Freeborn County2 WNW Gordonsville 08 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down south of Albert Lea.An isolated severe thunderstorm produced wind damage near Albert Lea, the afternoon of Wednesday August 8th. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.Stevens County2 W Donnelly 15 1635CST 0 0 0.00K 0.00K Hail (1.75)Stevens County1 SE Donnelly 15 1640CST 0 0 0.00K 0.00K Hail (1.00)Stevens CountyMorris 15 1645CST 0 0 0.00K 0.00K Hail (0.88)Stevens County1 NE Morris 15 1655CST 0 0 0.00K 0.00K Hail (1.00)212

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralStevens County2 ENE Morris 15 1655CST 0 0 0.00K 0.00K Hail (1.25)Stevens County4 SE Morris 15 1706CST 0 0 0.00K 0.00K Hail (1.00)Swift County3 N Benson Arpt 15 1725CST 0 0 0.00K 0.00K Hail (1.25)Chippewa County4 NNE Gracelock 15 1752CST 0 0 0.00K 0.00K Hail (0.88)Chippewa County2 NE Clara City 15 1816CST 0 0 0.00K 0.00K Hail (1.00)Chippewa County2 ENE Bunde 15 1824CST 0 0 0.00K 0.00K Hail (1.00)The afternoon of Wednesday, August 15th, a line of thunderstorms developed across northwest Minnesota, and movedeastward, while developing to the south across west-central Minnesota. Some of the storms became severe around Morris, anddropped up to golf ball size hail. These storms continued to develop to the southeast across the Minnesota River Valley, withmore reports of large hail.Mcleod CountyStewart 22 1050CST1053CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail lasted for three minutes from the western part of the town, to near the downtown area of Stewart.Meeker County2 SSE Kingston 22 1215CST 0 0 0.00K 0.00K Hail (1.00)Meeker County4 S Kingston 22 1222CST 0 0 0.00K 0.00K Hail (1.25)Meeker CountyKingston 22 1224CST 0 0 0.00K 0.00K Hail (0.75)Wright County1 SW Knapp 22 1225CST 0 0 0.00K 0.00K Hail (1.00)Scattered thunderstorms that developed across southwest Minnesota, moved northeast across southern Minnesota during thelate morning, and early afternoon of Wednesday August 22nd. A few of these storms produced up to half dollar size hail nearLitchfield, Minnesota.Chippewa County1 SE Milan 23 1011CST 0 0 0.00K 0.00K Hail (0.88)Stevens County5 S Hancock 23 1210CST1220CST 0 0 0.00K 0.00K Hail (0.88)The weather observer estimated that it hailed for ten minutes.Stevens County6 SSW Hancock 23 1210CST1220CST 0 0 0.00K 5.00K Hail (1.00)The observer estimated that it hailed for ten minutes, and damaged some of their corn and bean crops.213

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralSwift County9 NNW Danvers 23 1210CST1220CST 0 0 0.00K 0.00K Hail (1.00)The weather observer estimated that the hail lasted for 10 minutes.Redwood County5 SSW Milroy 23 1737CST 0 0 0.00K 0.00K Hail (1.00)Kanabec County7 NNW Ogilvie 23 1741CST1746CST 0 0 0.00K 0.00K Hail (1.00)Wright County1 NW Oster 23 1855CST 0 0 0.00K 0.00K Hail (1.00)Mcleod County1 W Stewart 23 1910CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)There was numerous large tree branches that were blown down in the town of Stewart.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mcleod CountyStewart 23 1917CST 0 0 0.00K 0.00K Hail (1.00)Mcleod County1 NW Stewart 23 1917CST 0 0 0.00K 0.00K Hail (1.25)Mcleod County2 SE Heatwole 23 1919CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)A storm chaser measured a severe wind gust at Highway 15, and 135th Street.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Mcleod County2 W Brownton 23 1922CST 0 0 0.00K 0.00K Hail (0.88)Carver County1 NE Hollywood 23 1936CST 0 0 0.00K 0.00K Hail (0.75)Mcleod County3 NW Glencoe 23 1939CST1941CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A house roof was partially blown off, with a part of a silo damaged, along with several large trees uprooted.Carver County5 WNW Norwood4 NNW Young AmericaNote: The estimated wind gust of 61 knots is equivalent to 70 mph.23 1943CST1950CST 3.2 100 0 0 62.00K 0.00K Tornado (EF0)A weak tornado touched down and moved northeast for a little more than one mile to 44.81784W, 93.97340N. It then turnedslightly and moved east-northeast until dissipation. Corn and several dozen trees were damaged as the tornado mostly movedover fields. An old barn along County Road 33 was blown down, killing 12 cows.Mcleod CountyLester Prairie 23 1944CST 0 0 0.00K 0.00K Hail (1.00)214

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, Central and South CentralCarver County1 WSW Norwood 23 1952CST1955CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)There were numerous trees blown down in the town of Norwood-Young America.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Carver County1 W Mayer 23 1959CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A six-inch diameter tree limb was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Meeker CountyDassel 23 2012CST 0 0 0.00K 0.00K Hail (0.75)Wright County1 NW Buffalo Muni Arpt 23 2014CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)MINNESOTA, NortheastMNZ037Several large tree limbs were blown off.During the early afternoon of Thursday, August 23rd, thunderstorms begun to develop in west-central Minnesota near Morris,and moved northeast. A few large hail stones were reported south and southwest of Hancock. Later that afternoon,thunderstorms developed near Marshall, and to the northeast near Glencoe and Watertown. Some of the storms produced largehail, with an EF0 tornado confirmed northwest of Norwood Young America. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Southern St. Louis/Carlton03 1839CST 0 0 0.00K 0.00K Rip CurrentA young girl was caught in a rip current while swimming at Park Point. She was rescued by the beach fire-fighter. Waves were3 to 5 feet and onshore east-northeast winds were gusting to 25 knots in the area.Itasca CountyWirt 04 1303CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Three to four inch diameter trees were snapped off and blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Itasca CountyTalmoon 04 1310CST 0 0 0.00K 0.00K Hail (0.75)St. Louis County4 NW Burnside 04 1312CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Numerous trees were blown down along Passi Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Itasca County6 NNE Wirt 04 1345CST 0 0 0.00K 0.00K Funnel CloudTwo funnel clouds were reported over Big Fork.Aitkin County1 NW Hill City 04 1420CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Eight inch diameter tree branches were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lake County1 N Sawbill Lndg 04 1435CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several foot and a half diameter trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.215

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, NortheastAitkin County1 S Kimberly 04 1848CST 0 0 0.00K 0.00K Hail (1.00)Aitkin County1 S Wealthwood 04 1915CST 0 0 0.00K 0.00K Hail (1.50)Aitkin County1 S Wealthwood 04 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Numerous reports were received of two-foot diameter trees down along the north shore of Mille Lacs Lake.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Aitkin County3 SE Cutler 04 2112CST 0 0 0.00K 0.00K Hail (1.00)Cass County2 N Pillager 04 2112CST 0 0 0.00K 0.00K Hail (1.00)Crow Wing County2 E Brainerd 04 2138CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)Pea size hail also fell.A strong cold front produced widespread thunderstorms over northeast Minnesota. Some of the storms contained large hail anddamaging winds. Note: The measured wind gust of 58 knots is equivalent to 67 mph.St. Louis County1 NE Duluth Sky Harbor Apt 09 1011CST1015CST 0.25 13 0 0 0.00K 0.00K Tornado (EF0)A waterspout made landfall on Park Point, then moved over the Sky Harbor Airport. There was no damage, however twofloats, each weighing about 500 lbs, were lifted and rotated. The tornado was 40 feet wide and had a path length of about aquarter of a mile.A cold air mass thunderstorm from Lake Superior produced a weak waterspout. The waterspout crossed the Sky HarborAirport on its way from Lake Superior to St Louis Bay on August 9th.St. Louis County2 ESE Duluth Sky Harbor Apt 18 1630CST 1 4 0.00K 0.00K LightningA boy died from injuries sustained from a lightning strike that hit the water near him. Four others in his boating party wereinjured. M9IWA boy died from injuries sustained from a lightning strike that hit the water near him. Four others in his boating party wereinjured.The boy was part of a group that were sail boating. As the storm moved in, they boat beached the and rushed ashore. When hailbegan to fall, they began to return back to the boat. The lightning struck as they were heading back to the boat. The boy was inthe water when the lightning stuck and was found face down. All the injured were in the water at the time of the strike. M9IWMINNESOTA, NorthwestMNZ001>003-006-008>009-013>015-022Clay - East Marshall - East Polk - Lake of the Woods - Mahnomen - Norman - North Beltrami -Pennington - Red Lake - West Polk01310000CST2359CST 0 0 DroughtLack of consistent precipitation kept portions of the northwest quarter of Minnesota in a D2 drought designation per the U. S.Drought Monitor. Despite several very warm days during the month of August, the average monthly temperature at both Fargoand Grand Forks was a little below normal. Precipitation remained spotty across the area, keeping precipitation totals belownormal. The number of severe weather events for August also stayed quite low.216

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, NorthwestNorman County1 SE Shelly 03 1750CST 0 0 Thunderstorm Wind (65EG)Several sections of corn, soybeans, and other crops were flattened by damaging winds across Shelly Township. Mostshelterbelts had numerous tree branches broken off but an occasional tree was snapped near the ground.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Wilkin County1 NW Doran 03 1805CST 0 0 Thunderstorm Wind (50EG)Tree branches were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Wilkin County5 NNE Kent 03 1812CST 0 0 Thunderstorm Wind (65EG)Several sections of corn, soybeans, and other crops were flattened by damaging winds across Mitchell Township. Mostshelterbelts had large tree limbs broken down or an occasional tree snapped near ground level. Peak winds were estimated inexcess of 75 mph.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Norman County1 SE Hendrum 03 1815CST 0 0 Thunderstorm Wind (55EG)Numerous large three to five inch diameter tree branches were broken down. A large oak tree was also split.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Polk CountyBurwell 03 1815CST 0 0 Thunderstorm Wind (50EG)Large branches were blown down by the strong wind in a farm yard.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk County1 NE Maple Bay 03 1820CST 0 0 Thunderstorm Wind (60EG)Trees were blown down and boat lifts were flipped over.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Wilkin County6 SW Rothsay 03 1820CST 0 0 Thunderstorm Wind (50EG)Numerous three to four inch diameter tree branches were blown down on and near highway 9.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk CountyMentor 03 1825CST 0 0 Thunderstorm Wind (55EG)Trees and power lines were blown down.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Wilkin County3 SSW Lawndale 03 1827CST 0 0 Thunderstorm Wind (65EG)Several sections of corn, soybeans, and other crops were flattened by damaging winds affecting portions of Manston, Tanbers,Atherton, and Prairie View Townships in northeast Wilkin County. Most shelterbelts had numerous large tree branches brokendown and an occasional tree snapped near ground level. Peak winds were estimated in excess of 75 mph.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Red Lake County3 S Brooks 03 1830CST 0 0 Thunderstorm Wind (60EG)Large tree branches were blown down onto power lines causing local power outages.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.217

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, NorthwestWilkin County1 NW Lawndale 03 1830CST 0 0 Thunderstorm Wind (70EG)A large enclosed horse trailer was blown off Interstate 94 near mile point 30. The time and location were based on preliminarystate patrol reports.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Becker CountyLake Park 03 1835CST 0 0 Thunderstorm Wind (55EG)Trees four inches in diameter were blown down in addition to many smaller branches.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Wilkin County2 NW Rothsay 03 1837CST 0 0 Thunderstorm Wind (93MG)The wind gust was measured at the MNDOT RWIS site along Interstate 94 near mile point 37.Note: The measured wind gust of 93 knots is equivalent to 107 mph.Otter Tail County1 NNE Rothsay 03 1838CST 0 0 Thunderstorm Wind (70EG)Numerous large branches and power lines were blown down.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Wilkin County1 SW Rothsay 03 1840CST 0 0 Thunderstorm Wind (70EG)Numerous large tree branches were blown down around town. Power outages were also reported.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Wilkin County1 NW Doran 03 1845CST 0 0 Thunderstorm Wind (65EG)Several large tree branches and tree limbs were broken off by the strong winds.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Becker County3 ENE Shoreham 03 1850CST 0 0 Thunderstorm Wind (70EG)Numerous large trees and tree limbs were blown down near the WE Fest campgrounds. Some tent and trailer damage occurredand the concert bowl was evacuated in advance of the storm.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Otter Tail CountyPelican Rapids 03 1850CST 0 0 Thunderstorm Wind (70EG)A twelve inch diameter maple tree was blown down by the strong winds. In addition, many other four to six inch diameter treebranches were broken off.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Clearwater County4 W Gonvick 03 1855CST 0 0 0.00K 0.00K Funnel CloudOne or more persistent funnels were viewed by multiple sources near the Polk and Clearwater county line. Photos and reportswere posted via Facebook and confirmed by local authorities.Norman County1 NE Syre 03 1855CST 0 0 Thunderstorm Wind (70EG)Several sections of corn and soybeans were flattened by damaging winds in western Home Lake Township.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.218

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, NorthwestOtter Tail County5 E Pelican Rapids 03 1900CST 0 0 Thunderstorm Wind (70EG)Several large trees were broken down or uprooted onto homes and vehicles.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Wilkin County3 WSW Tenney 03 1902CST 0 0 Thunderstorm Wind (50MG)The wind gust was measured at the MNDOT RWIS site along highway 75.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Otter Tail County1 S Vergas 03 1905CST 0 0 Thunderstorm Wind (65EG)Numerous four to six inch diameter tree branches were broken down along with a few larger trees.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Otter Tail CountyFergus Falls 03 1913CST 0 0 Thunderstorm Wind (53MG)The wind gust was measured by the AWOS at the Fergus Falls Airport.Note: The measured wind gust of 53 knots is equivalent to 61 mph.Otter Tail County4 WSW Dent 03 1915CST 0 0 Thunderstorm Wind (70EG)Boat lifts, docks, and boats were flipped by the strong winds.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Otter Tail County3 ESE Richville 03 1920CST 0 0 Thunderstorm Wind (50MG)The wind gust was measured by a storm chaser along highway 108 at Rush Lake.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Otter Tail County2 S Perham 03 1925CST 0 0 Thunderstorm Wind (70EG)Numerous large four to eight inch diameter tree limbs were broken down. Two forty foot tall pine trees were snapped about tenfeet above ground level.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Mahnomen County5 NNE Waubun 03 1927CST1935CST 0 0 Thunderstorm Wind (65EG)Very strong winds blew for several minutes across portions of Lake Grove and Rosedale townships. Large branches of four tosix inches in diameter or greater were broken down in various locations east of the Mahnomen County Airport. The windssounded like a freight train.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Clearwater County1 SW Clearbrook 03 1930CST 0 0 Thunderstorm Wind (50EG)A few large five to eight inch diameter tree limbs and numerous smaller branches were blown down by the strong winds.A strong cold front moved through eastern North Dakota and the northwest quarter of Minnesota during the afternoon andevening hours of August 3rd. Afternoon temperatures ahead of the front reached the low to mid 80s with dew points in the lowto mid 60s. Thunderstorms fired all along the frontal boundary with damaging wind gusts becoming the main threat. Bowingsegments also appeared along the line, although no tornadoes were reported. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.219

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, NorthwestHubbard County3 ENE Becida 15 1545CST 0 0 Hail (1.00)Hubbard County4 ENE Becida 15 1549CST 0 0 Hail (0.88)Beltrami County1 W Hines 15 1608CST 0 0 Hail (0.75)Beltrami County1 N Hines 15 1610CST 0 0 Hail (1.75)Most of the hail was quarter to half dollar size.A ribbon of middle 60F surface dew point values worked into eastern North Dakota and the northwest quarter of Minnesotaduring the afternoon of August 15th. These were pretty high values after a week of morning low temperatures in the 50s. Acold front moved into southeast North Dakota and the northwest quarter of Minnesota during the peak of afternoon heating andhelped initiate several severe thunderstorms.Polk County2 W Climax 24 2245CST 0 0 Thunderstorm Wind (50EG)A few large three to five inch diameter tree branches were broken down in farmstead shelterbelts.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk CountyEast Grand Forks 24 2330CST 0 0 Hail (0.88)Marshall CountyStephen 25 0049CST 0 0 Hail (1.00)A round of elevated convection broke out during the evening of August 24th, causing thunderstorms to spread from south ofDevils Lake through the Grand Forks/East Grand Forks area. The storms produced large hail and strong wind gusts.MNZ005-007Roseau - West Marshall28310500CST2359CST 0 0 DroughtLack of consistent precipitation kept portions of the northwest quarter of Minnesota in a D2 drought designation per the U. S.Drought Monitor. Despite several very warm days during the month of August, the average monthly temperature at both Fargoand Grand Forks was a little below normal. Precipitation remained spotty across the area, keeping precipitation totals belownormal. The number of severe weather events for August also stayed quite low.MINNESOTA, SoutheastMNZ094>096Fillmore - Houston - Mower01310000CST2359CST 0 0 0.00K DroughtPersistent below normal precipitation allowed severe drought conditions to continue across portions of southeast Minnesota,including Houston and Fillmore Counties. With the continued lack of precipitation, the severe drought expanded to includeMower County. Affects of the drought include damaged crops, pastures that have stopped growing, river flows that were lessthan 20 percent of normal, falling ground water levels and high to extreme fire dangers resulting in burning bans.Houston County5 NE Eitzen 02 0227CST 0 0 0.00K 0.00K Hail (0.75)Houston County4 SSW Reno 02 0240CST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Several four to five foot long tree branches were blown down south of Reno.220

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, SoutheastA line of thunderstorms along a cold front produced damaging winds and hail across parts of southeast Minnesota in the earlymorning hours of August 2nd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Wabasha CountyMazeppa 03 2311CST 0 0 1.00K 0.00K Thunderstorm Wind (53EG)Trees were blown down in Mazeppa.A line of thunderstorms ahead of a cold front produced damaging winds across parts of southeast Minnesota in the late eveninghours of August 3rd. These storms produced winds primarily below severe limits, but were strong enough around Mazeppa(Wabasha County) to blow down some trees. Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Wabasha CountyDumfries 09 1327CST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail fell four miles west-southwest of Wabasha.Wabasha County4 SW Conception 09 1351CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail fell four miles north-northeast of Plainview.Winona County3 SW Elba 09 1420CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)A fifteen inch diameter tree was snapped thirty feet above the ground near Whitewater State Park and other trees in the areawere pushed over. Corn was flattened with some snapped on the top portion of the stalks.A line of thunderstorms along a cold front moved across southeast Minnesota during the afternoon hours on August 9th. Thethunderstorms produced hail up to nickel size near Wabasha (Wabasha County) and Plainview (Wabasha County) and winddamage near Whitewater State Park (Winona County). Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Winona County1 W Winona 15162312CST0015CST 0 0 3.10K 0.00K LightningA lightning strike produced a 2 square foot hole in the roof of a detached garage. The resulting fire was quickly put out with noother damage occurring to the garage.A garage in Winona (Winona County) was damaged by a lightning strike as thunderstorms moved through the area during thelate evening of August 15th. The roof of the garage had a two square foot hole blown into it by the lightning strike with littleother damage occurring.MINNESOTA, SouthwestMNZ071-080>081-089>090-097>098Cottonwood - Jackson - Lincoln - Lyon - Murray - Nobles - Pipestone - Rock01310000CST2359CST 0 0 DroughtDrought conditions continued over all of the area with below normal rainfall keeping soil conditions dry. Stress on cropscontinued even though August was less hot than July, with temperatures averaging only a little above normal. Crop damagewas quite evident, though the amount of reduced yields and other damage which might become evident at harvest wasuncertain. While reported water supply problems were not extreme, many local governments had water use restrictions in place.Drought was generally listed as severe to extreme for the area.Lyon County3 ENE Taunton 01 1629CST 0 0 Hail (1.75)Large hail caused an unknown amount of damage to corn and soybean crops, and to vehicles.221

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, SouthwestLincoln County8 NE Hendricks 01 1630CST 0 0 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew down limbs and flattened corn.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lyon County1 S Minneota 01 1635CST 0 0 Hail (1.75)Large hail caused an unknown amount of crop, vehicle, window, and roof damage.Lyon County(MML)Ryan Fld Marsha 01 1647CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Lyon County1 S Marshall 01 1717CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds damaged siding on mobile homes.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lyon County(MML)Ryan Fld Marsha 01 1721CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds caused tree damage. The winds were accompanied by one half inch diameter hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lyon County4 ENE Lynd 01 1725CST 0 0 Thunderstorm Wind (52EG)Thunderstorm winds caused tree damage and flattened corn crops.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Murray County4 N Currie 01 1820CST 0 0 0.00K 0.00K Hail (1.25)Thunderstorms produced large hail and damaging winds in Lincoln, Lyon, and Murray Counties of southwest Minnesota duringthe late afternoon and early evening of August 1st.Lyon County4 E Lynd 23 1650CST 0 0 0.00K 0.00K Hail (1.25)Lyon County4 ENE Lynd 23 1654CST 0 0 0.00K 0.00K Hail (0.88)Lyon County1 SE Marshall 23 1657CST 0 0 0.00K 0.00K Hail (1.00)Rock County1 SSE Luverne 23 1724CST 0 0 0.00K 0.00K Hail (0.75)Rock County1 SSE Luverne 23 1733CST 0 0 0.00K 0.00K Hail (1.00)Rock County1 SSE Luverne 23 1740CST 0 0 0.00K 0.00K Hail (1.00)222

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MINNESOTA, SouthwestLyon County3 NNE Balaton 23 1750CST 0 0 0.00K Hail (1.75)Large hail caused an unknown amount of damage to vehicles.Lyon County4 NE Balaton 23 1802CST 0 0 0.00K 0.00K Hail (1.00)Rock County3 S Luverne Arpt 23 1825CST 0 0 0.00K 0.00K Hail (1.00)Rock County1 E Hills 23 1905CST1915CST 0 0 0.00K 0.00K Hail (0.75)Rock County1 W Steen 23 1915CST 0 0 0.00K 0.00K Hail (1.00)Rock County1 E Hills 23 1915CST1918CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds caused tree damage, including 3 large trees blown down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Rock County1 E Hills 23 1918CST 0 0 0.00K 0.00K Hail (1.25)Rock County1 W Steen 23 2030CST 0 0 0.00K 0.00K Heavy RainHeavy rainfall amounted to 3.50 inches.Thunderstorms produced large hail and damaging winds at several locations in Lyon and Rock Counties in southwestMinnesota during the late afternoon and early evening of August 23rd.MINNESOTA, West CentralTraverse County4 WSW Tintah 03 1910CST 0 0 Thunderstorm Wind (52EG)An estimated thunderstorm wind gust of sixty mph was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Big Stone County1 W Ortonville Arpt 03 1914CST 0 0 Thunderstorm Wind (55MG)MISSISSIPPI, CentralAn area of low pressure and associated cold front produced severe thunderstorms with up to seventy mph winds occurring.Note: The measured wind gust of 55 knots is equivalent to 63 mph.Clay County1 W Pheba 01 1445CST 0 0 0.00K 0.00K Hail (1.00)Several limbs were also blown down in the area.Clay CountyPheba 01 1500CST 0 0 0.00K 0.00K Hail (0.88)223

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralClay County3 N Pheba 01 1500CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A tree was blown onto a power line near Highway 50 and Berry Road resulting in numerous power outages.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clay County4 WSW Whites 01 1520CST 0 0 0.00K 0.00K Hail (1.00)Choctaw County2 SSE Chester2 E Ackerman Choctaw Arp01 1600CST1620CST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)A tin shed was blown over on south Union Road. Several trees were blown down in and around Ackerman with one large treeblown down onto a house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Choctaw County1 S Ackerman 01 1620CST 0 0 10.00K 0.00K Hail (1.25)Dime to half dollar size hail fell in Ackerman for about 15 minutes.Newton County2 WSW Newton1 SSE Newton Okeefe Arpt04 1751CST1800CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Liberty Church Road. Power was out on Wickware Road. A power line was down in Newton due toa fallen tree.Warm and humid conditions, common during August in Mississippi, led to the development of a few severe thunderstormsduring the afternoon hours of the 1st and 4th. Wind damage and some hail occurred as a result of these storms. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.Jones County1 NE (LUL)Hesler Fld Laur 06 1415CST 0 0 10.00K 0.00K LightningLightning hit a transformer at Highway 11 and Industrial Boulevard causing power outages in Ellisville and Laurel.Rankin County2 SW Gulde 06 1435CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Multiple trees were blown down along with a few trees down on power lines in east Brandon and out near Pelahatchie.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jones County2 ENE Tawanta 06 1445CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Three trees were blown down in the area. One tree fell on a vehicle on Augusta Road, blocking the road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jones County1 NE Moselle 06 1450CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Large tree limbs were blown down across Moselle-Oak Grove Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Forrest County1 ESE Eatonville 06 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down at Eatonville Road and Sibs Hobson.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.224

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralHinds County1 W West JacksonOakley06 1500CST1520CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)Trees were blown down all across the city of Jackson, as well as out toward the Byram and Lake Ridgelea area. A tree fell on acar on west Ridge Drive and another tree fell on a patio on Rod Street.Hinds County1 W West Jackson1 N JacksonNote: The estimated wind gust of 56 knots is equivalent to 64 mph.06 1520CST1550CST 0 0 0.00K 0.00K Flash FloodStreet flooding was reported in the downtown Jackson area near Fondren and on High Street.Forrest County2 WNW Epps 06 1525CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down at Bluemoon Drive and Camp Dantzler Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Copiah County1 NE Crystal Spgs 06 1550CST1600CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down, and power outages occurred in Crystal Springs. Another tree was blown down just north of Gallman.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Leflore County3 WSW Craigside 06 1700CST 0 0 3.00K 0.00K LightningLightning started a brush fire along Highway 49.Warm and humid conditions, common during August in Mississippi, led to the development of a few severe thunderstormsduring the afternoon hours of August 6th. Wind damage and some hail occurred as a result of these storms.Webster County1 W Mantee 09 0520CST 0 0 100.00K 0.00K LightningA home was struck by lightning resulting in a fire that burned the house down.Webster County2 S Mantee 09 0530CST 0 0 0.10K 0.00K Thunderstorm Wind (43EG)A couple of trees were blown down.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Webster County3 WNW Cadaretta 09 0830CST0855CST 0 0 0.00K 0.00K Flash FloodChoctaw County1 N Sherwood2 SSE ReformSeveral roads were flooded.09 0900CST0945CST 0 0 0.00K 0.00K Flash FloodWater was reported across several roads near Mathiston.Grenada County1 E Grenada 09 0915CST0955CST 0 0 0.00K 0.00K Flash FloodSome minor street flooding occurred in Grenada.225

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralRankin County1 S Cleary 09 1300CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Five trees were blown down blocking roadways in the Brandon and Cleary areas.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Forrest County2 SSE Bonhomie 09 1420CST1430CST 0 0 20.00K 0.00K Thunderstorm Wind (56MG)Trees were blown down at Elks Road and Homestead Road near the Dixie community, as well as on James Street. The roof of amulit-purpose building was damaged in the area as well. A 64 mph wind gust was measured by the ASOS at the HattiesburgMunicipal Airport.Note: The measured wind gust of 56 knots is equivalent to 64 mph.Jefferson Davis County1 E Prentiss 09 1420CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down across several roads near Prentiss.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Covington County2 SW Pickering 09 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down at the intersection of US Highway 49 and MS Highway 598.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jones County3 NNW (PIB)Pine Belt Rgnl 09 1450CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down across several roads near Moselle and near Ellisville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jones County1 SW Laurel 09 1455CST 0 0 15.00K 0.00K LightningLightning caused transformer fires at several locations in Laurel.Jones County1 W Ellisville 09 1500CST 0 0 25.00K 0.00K LightningLightning caused a transformer fire at Jones County Junior College. The fire caused damage to an adjacent building.Jones County1 SW Laurel 09 1515CST1555CST 0 0 0.00K 0.00K Flash FloodMultiple streets were flooded.Lamar County1 WSW Oak Grove 09 1525CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)At least four trees were blown down across the county.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marion County1 S Columbia 09 1542CST 0 0 5.00K 0.00K LightningLightning struck a power pole causing some power outages.A strong upper level disturbance interacted with a very warm and humid air mass in place across the region allowing severalsevere thunderstorms to develop during the afternoon. Wind damage occurred as a result of these storms, in addition to damageas a result of lightning.226

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralFranklin County2 WSW Oldenburg 10 1555CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Hamburg Road near Roxie.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Adams County1 N Stanton 10 1610CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)Trees were blown down near Natchez State Park. One of them along Wickcliffe Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Adams County1 S Stanton 10 1635CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)Trees were blown down along State Park Road. One tree had blocked the road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Adams County2 E Natchez 10 1710CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A large limb was blown onto a house along Brookfield Drive, causing some minor damage to the house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Adams County1 S Cranfield 10 1715CST1755CST 0 0 0.00K 0.00K Flash FloodFlooding occurred on Cranfield Road.Adams County1 SW Natchez 10 1735CST 0 0 50.00K 0.00K Thunderstorm Wind (65EG)Metal ramps at the Isle of Capri Casino were lifted by the gusty winds and then dropped on an electric line. The casino was shutdown due to the subsequent power outages.Isolated severe storms developed across portions of southwest Mississippi during the late afternoon and early evening hoursalong and ahead of a slow moving, weak cold front coming from the northwest. The storms produced some wind damage in theform of blown down trees and power lines. There was also some isolated flash flooding in Adams County northwest ofNatchez. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Sunflower CountyRuleville 13 0733CST0735CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on north Bowden Avenue, and a large limb was blown down at the hospital.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Grenada County3 SW Dubard 13 0810CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Holcomb-Sweethome Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery County3 WNW Spring Hill 13 0840CST 0 0 0.60K 0.00K Thunderstorm Wind (50EG)Several large limbs over three inches in diameter down across the area.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sunflower County2 SSE Lombardy 13 1555CST 0 0 0.50K 0.00K Hail (1.00)Nickel to quarter size hail fell along Lombardy Road. Several large pecan limbs were knocked down by the hail.227

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralSunflower County1 S Drew 13 1630CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Many tree limbs were knocked down throughout town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sunflower County2 E Drew 13 1638CST 0 0 15.00K 0.00K Hail (1.75)Quarter to golf ball size hail fell along Hoard Lake Road. Several large limbs were blown down in the area as well.Carroll County2 E Avalon 13 1725CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Highway 7 between Avalon and Holcomb.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bolivar CountyBoyle 13 1726CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A power line was blown down onto a home.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sunflower County2 ESE Dockery 13 1744CST1750CST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down across Old Highway 8 in the community of Dockery. A large limb was blown out of a tree in Rulevilleknocking out power to the home after falling on power lines.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sunflower County1 NE Linn 13 1755CST 0 0 0.00K 0.00K Hail (1.00)Dime to quarter size hail fell in Linn.Leflore County1 S Schlater 13 1840CST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down on Highway 442 near Schlater. Power outages occurred in Itta Bena.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery County2 W Minerva 13 1845CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on Lodi Road near Winona.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Carroll County2 NW Sommerville Communit 13 1848CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on Highway 35 near Vaiden. Power outages occurred in Vaiden.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery County2 NNW Hendrix Siding 13 1850CST 0 0 5.00K 0.00K Hail (1.50)Quarter to ping pong ball size hail fell between Winona and Kilmichael.228

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralSunflower County2 NNE Mc Daniels 13 1850CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Highway 49 between Indianola and Sunflower.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery County2 SW Kilmichael 13 1910CST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)A few trees and power lines were blown down along Vaiden Kilmichael Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery CountyKilmichael 13 1915CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail fell just southwest of Kilmichael.Sunflower County2 NE Mackman 13 1915CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail fell near Moorehead.Montgomery County3 E Poplar Creek 13 1930CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down along Highway 413.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Choctaw County2 NW Ackerman Choctaw Arp 13 2006CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on Cummings Road and South Union Road.Attala County2 W Kosciusko2 SSE WambaNote: The estimated wind gust of 50 knots is equivalent to 58 mph.13 2125CST2135CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A tree and a power line were blown down at Highway 12 and Jackson Street. Power lines were blown down at north JacksonStreet and east Adams Street, and Stewart Street and east North Street. A tree was blown down on Highway 43 South.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Leake County3 WNW Dowell 13 2200CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Leake County2 SSE Thomastown3 NE St AnnTrees were blown down along Highway 43 North.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.13 2255CST2300CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down at Highway 429 and Natchez Trace Parkway. Another tree was blown down at Conway Road andHighway 429.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Madison County2 W Farmhaven 13 2325CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on Highway 17 and Sweet Wright Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.229

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralLeake CountyTuscola 13 2345CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down at Highway 487 and Highway 500 in Tuscola.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Newton CountyProspect 14 0015CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down along Highway 492.A strong upper level disturbance interacted with a very warm and humid air mass in place across the region allowing severethunderstorms to develop during the early morning, and again during the afternoon and evening of the 13th. Damage due tostrong winds and hail occurred as a result of these storms. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jefferson Davis County5 E Gwinville 15 1331CST 0 0 0.00K 0.00K Hail (1.00)Dime to quarter size hail fell along JT Barnes Road.Covington County7 W Williamsburg 15 1358CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)One tree was blown down near Highway 35 and Highway 84 near Lone Star.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Newton County3 WNW Decatur 16 1425CST 0 0 0.00K 0.00K Hail (1.00)Lauderdale County1 NE Meridian1 N BonitaQuarter size hail fell on Strum Road.16 1510CST1545CST 0 0 5.00K 0.00K Flash FloodSeveral streets were flooded around the city. Multiple roads were closed due to the flood waters. One person was stuck in avehicle that was surrounded by water.Scott County5 SSW Piketown 16 1530CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on Russell Community Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Scott County3 SW Ludlow 16 1645CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A few trees and large limbs were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Holmes County1 E Durant 16 1746CST 0 0 0.00K 0.00K Hail (1.00)Holmes County1 E Durant 16 1748CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)A tree was blown onto a house in Durant.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lamar County2 WSW Baxterville 16 1822CST 0 0 5.00K 0.00K Hail (1.25)Half dollar size hail fell along Clear Creek Road.230

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralAttala County5 NNE Hesterville 16 2010CST2035CST 0 0 2.00K 0.00K Flash FloodSix to eight inches of water was covering a 100 yard stretch of County Road 3122.A couple of upper level disturbances that passed over the region on the 15th and 16th interacted with a very warm and humidair mass allowing several severe thunderstorms to develop each afternoon. Damage due to strong winds and hail occurred as aresult of these storms, in addition to some flash flooding that occurred due to slow storm motions.Webster County1 N Eupora 18 0300CST 0 0 250.00K 0.00K LightningA lightning strike sparked a fire at a church on Tank Hill Road. The building was a total loss.MSZ047A church outside Eupora caught fire after it was struck by lightning. The building was a complete loss.Photo credit unknown.Warren18 1220CST 0 0 0.5K 0.00K Strong WindYazoo County2 SSE Benton 18 1220CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)MSZ047Trees were blown down near Highway 433 and Scotland Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Warren18 1225CST 0 0 1.0K 0.00K Strong WindWarren County2 SSE Vicksburg 18 1235CST 0 0 10.00K 0.00K LightningA house was struck by lightning on Oak Street causing a brief fire.Jefferson Davis County2 NE Hathorn 18 1302CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Minor shingle damage occurred to a house and the tops of a few pine trees were blown off.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.231

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralRankin County2 E Flowood2 NNW Pearson18 1415CST1500CST 0 0 5.00K 0.00K Flash FloodA portion of Highway 469 near Florence was under water. Skylane Drive in Pearl was completely covered in water.MSZ066Skylane Drive in Pearl was completely covered by water due to heavy rains. Photo credit unknown.Jones18 1510CST 0 0 2.0K 0.00K Strong WindAn upper level disturbances that passed over the region on the 18th interacted with a very warm and humid air mass allowing acouple severe thunderstorms to develop during the afternoon. Damage due to strong winds occurred as a result of these storms,in addition to some flash flooding that occurred due to slow storm motions. Lightning caused some additional damage in acouple areas.Rankin County4 WNW Goshen Spgs 19 1745CST1800CST 0.08 30 0 0 0.00K 0.00K Tornado (EF0)On the evening of August 19th, a very rare waterspout developed over the Ross Barnett Reservoir. According to pictures andeyewitness accounts, the waterspout occurred over the upper end of the reservoir just to the west of the Goshen Springscommunity, southwest of the MS Highway 43 Pearl River crossing. The waterspout was associated with a developing rainshower, and initially there was little or no precipitation occurring in the area when it developed around 6:45pm CDT. Thewaterspout remained nearly stationary for about 10 to 15 minutes before dissipating.On the evening of August 19th, a very rare waterspout developed over the Ross Barnett Reservoir. The waterspout lasted forabout 15 minutes before dissipating.232

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralA waterspout developed on the Ross Barnett Reservoir between 6:45pm and 7:00pm CDT. Photo credit unknown.Marion County2 NNW Columbia 28 1320CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A few trees were snapped and uprooted on Pitman Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.MSZ066Jones28 1700CST2100CST 0 0 5.0K 0.00K Strong WindMSZ040-047>049-053>056-059>066-072>074Marion County1 ENE Fortenberry3 ESE GossAdams - Claiborne - Copiah - Covington - Forrest - Franklin - Hinds - Issaquena - Jefferson - JeffersonDavis - Jones - Lamar - Lawrence - Lincoln - Marion - Rankin - Simpson - Smith - Warren29301200CST1300CST 0 1 5.675M 0.00K Tropical Storm29 1415CST1515CST 0 0 35.00K 0.00K Flash FloodWater was flooding a house in the Expose community with the occupants being evacuated.Lamar CountyLumberton 29 1535CST1635CST 0 0 0.00K 0.00K Flash FloodFlooding was occurring on Highway 11.MSZ050Scott29301600CST1200CST 0 0 100.0K 0.00K Strong WindMarion County1 N Columbia14 NNE Carmich29 1700CST1830CST 0 0 0.00K 0.00K Flash FloodSeveral roads were flooded across the county.233

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralMSZ058Clarke29301700CST1200CST 0 0 20.0K 0.00K Strong WindForrest County1 SE Hattiesburg1 W Dragon29 1800CST2200CST 0 0 20.00K 0.00K Flash FloodMultiple roads around Hattiesburg had over six inches of water covering them. Water was crossing JB Horne Road in severalplaces, and a culvert was washed out on Frog Bottom Road.Lamar County1 E Baxterville 29 1805CST1905CST 0 0 5.00K 0.00K Flash FloodSeven roads were closed due to flooding, mainly in the southwestern part of the county.Lawrence County1 ENE Arm3 NNW Bournham29 1820CST1920CST 0 0 5.00K 0.00K Flash FloodA couple of roads were flooded.Lamar County4 E Baxterville 29 2000CST2100CST 0 0 0.00K 0.00K Flash FloodSeveral portions of Entrekin Road were flooded and closed to traffic.MSZ043-052Lauderdale - Madison29302000CST1200CST 0 0 35.0K 0.00K Strong WindJones County1 SW Laurel 29302200CST0300CST 0 0 50.00K 0.00K Flash FloodThe Teresa Street railroad underpass had to be closed due to flooding. Flash flooding collapsed the intersection of South 14thStreet and Queen Street.Marion County2 SSE Hub2 SE Columbia Marion Arpt29302300CST0915CST 0 0 150.00K 0.00K Flash FloodA portion of Highway 43 near Joe Magee Road was closed due to flooding. The road had over one foot of water covering it.Several roads flooded in Columbia overnight and had to be closed. One home in town was flooded. Several other homes aroundthe county also flooded overnight.Lamar County1 E Baxterville6 SW Otob30 0000CST0200CST 0 0 10.00K 0.00K Flash FloodThirty roads were closed across mainly the southern part of the county.MSZ036Holmes30 0100CST1200CST 1 0 30.0K 0.00K Strong Wind234

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralJasper County1 NE Heidelberg 30 0115CST0245CST 0 0 0.00K 0.00K Flash FloodFlooding occurred on Highway 528 and Walnut Street in Heidelberg.Lamar County1 SE Purvis 30 0250CST0350CST 0 0 4.00K 0.00K Flash FloodWater was covering several roads in the area. The water was beginning to approach a few homes. One water rescue wasneeded.Lamar County1 SE Purvis 30 0415CST0715CST 0 0 50.00K 0.00K Flash FloodWater rescues were ongoing across the county. Up to five feet of water was in one home. Forty five roads across the countywere closed due to flooding.Clarke County1 N Archusa Spgs 30 0450CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)Numerous trees and power lines were down across the county. These winds were associated with the remnants of Isaac.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.MSZ041-051Clarke County1 N Archusa Spgs2 SW ShubutaNewton - Sharkey30 0500CST1200CST 0 0 10.0K 0.00K Strong Wind30 0530CST0730CST 0 0 25.00K 0.00K Flash FloodWater rescues were needed in Quitman and Stonewall due to the heavy rain.Lauderdale County1 NE Meridian2 S Smith30 0715CST1100CST 0 0 15.00K 0.00K Flash FloodSeveral roads throughout the county were flooded early in the morning due to persistent heavy rains.Lamar County1 SE Purvis5 NNW Baxterville30 0750CST0850CST 0 0 150.00K 0.00K Flash FloodSeventy roads were closed due to flooding across the county. Five homes and three businesses were flooded.Clarke County1 WSW Creek5 ESE Sykes30 0849CST0856CST 6.1 100 0 3 100.00K 0.00K Tornado (EF1)This tornado touched down near Crandall and moved northward across eastern Clarke County, ending just south of MSHighway 18. Two mobile homes were heavily damaged and a semi truck was rolled. At a baseball field, two light poles weresnapped at the base, the concession stand roof was removed, and a fence was damaged. Multiple outbuildings were damaged ordestroyed along the path. Numerous trees were snapped or uprooted. Maximum sustained winds were estimated at 105 mph.235

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralLauderdale County2 E Increase 30 0918CST0921CST 1.4 100 0 0 70.00K 0.00K Tornado (EF1)This tornado touched down just east of Causeyville Road near Little Browns Creek, and tracked northwestward ending alongCovington Loop. A couple of barns were damaged, two sheds were blown into a pond, and another shed was damaged by afallen tree. Numerous trees were snapped or uprooted along the path. Maximum sustained winds were estimated at 100 mph.Jefferson Davis County1 E Bassfield8 SW Melba30 1030CST1200CST 0 0 10.00K 0.00K Flash FloodFifteen roads were closed across the county due to flooding from the heavy rains.MSZ018Washington County1 S Greenville2 ENE WintervilleBolivar30 1140CST 0 0 25.0K 0.00K Strong Wind30 1636CST1836CST 0 0 15.00K 0.00K Flash FloodStreet flooding was ongoing in the Lake Manor and Country Club subdivisions. One and a half feet of water was coveringDallis Drive in Greenville. MS Highway 438 was flooded between Wayside and Arcola.MSZ026Grenada30 1915CST 0 0 5.0K 0.00K Strong WindWarren County2 SSE Vicksburg 31 1513CST 0 0 50.00K 0.00K Thunderstorm Wind (55EG)Five trees were blown down in the area, including one on a car one that took down a power pole. A 16 foot boat was capsizedat the city waterfront. This storm was associated with the remnants of Isaac as it pulled off to the north.Tropical Depression Nine formed in the Atlantic, east of the Lesser Antilles, on the morning of August 21, 2012. Twelve hourslater, Tropical Depression Nine had strengthened into Tropical Storm Isaac. Isaac continued to track through the easternCaribbean Sea and Florida Straits while maintaining high end tropical storm strength. Just before noon central time on the 28th,Isaac was located about 75 miles south-southeast of the mouth of the Mississippi River(or about 160 miles southeast of NewOrleans) and was found to have reached hurricane strength with winds of 75mph. An outer rain band from Isaac brought someshowers to portions of the ArkLaMiss during the afternoon of the 28th, while the center of Isaac was still churning in the Gulfof Mexico. At 6:45pm on August 28th, Hurricane Isaac made a brief landfall along the coast of Southeast Louisiana inPlaquemines Parish. Maximum sustained winds were 80mph at this landfall. Isaac did not remain over land for long as he wasback over water again by 9:00pm that same evening. Isaac made his second landfall along the coast of southeast Louisiana, justto the west of Port Fourchon, around 2:15am August 29th, again with maximum sustained winds of 80 mph.Isaac moved very slowly to the north and northwest over the course of August 29th, which made for prolonged impacts.Forward motion of about 5 mph lead to tremendous flooding issues for both Louisiana and portions of Mississippi south of I-20. Around noon on August 29th, Isaac was downgraded to a Tropical Storm, but this was not much relief to the many residentswho were being inundated with rain and wind. Storm total rainfall across portions of Marion County indicated at least 10 to 15inches fell. Numerous homes and buildings were flooded and some water rescues occurred in Lamar, Marion and Clarkecounties. Further to the north, flooding issues were not quite as bad with about 5 to 7 inches of rain falling from the I-20corridor and north. Tropical storm force wind gusts were noted as far north as Bolivar County, with the Golden Triangle regionnot seeing winds reach more than tropical depression strength. The worst of the wind was felt generally along and south of anaxis from Marion County to Adams County. Numerous trees were down in Adams County, leaving many without power forseveral days. Eighty percent of the roads were blocked in Franklin County due to downed trees.With all of the rain that fell, some of the area rivers filled quickly. Minor flooding was recorded on the lower Pearl River atRockport and Monticello, as well as on Bouie Creek at Hattiesburg and Tallahala Creek at Laurel. The biggest river impact inthe Jackson Hydrologic Service Area was on Black Creek at Brooklyn. Black Creek entered moderate flooding and finallycrested at 26.71 feet on August 31st at 5pm. This will go down as the second highest crest in history for this particular river andforecast point. This river flooding caused damage to 15 homes both upstream and downstream of the river gage.236

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, CentralThe winds and flooding were not all Isaac brought as a couple of tornadoes touched down in eastern Mississippi. Twotornadoes, one in Clarke County and one in Lauderdale County, occurred during the morning of August 30th. Both were ratedEF-1 with winds around 100 mph. The tornado in Clarke County, near Crandall, resulted in 3 injuries to residents of a mobilehome. One death attributed to Isaac occurred in Holmes County when a 64 year old woman was killed by a tree falling on hercar. Isaac finally moved out of the region by the afternoon of the 30th, and was downgraded to a tropical depression by lateafternoon on the 30th as it continued to track to the northwest into Missouri and the Ohio Valley. Note: The estimated windgust of 55 knots is equivalent to 63 mph.MISSISSIPPI, NorthMSZ002-007>008-010>012-020Benton - Coahoma - Marshall - Panola - Quitman - Tallahatchie - Tate - Tunica01310000CST2359CST 0 0 0.00K DroughtBeneficial rain fell during the month of August across North Mississippi. However the rain did little to improve ongoingdrought conditions. Severe (D2) drought conditions continued across Northwest Mississippi while extreme (D3) conditionscontinued across extreme Northwest Mississippi. Many crops that were planted during the spring struggled to grow due to lackof water. Irreversible damage was done to the corn crop as the corn was too far along for the August rains to help the ears fill.The August rains did give a boost to the soybean and sorghum fields and helped the pastures that were in poor condition.However, lake and river levels remained at low levels. Burn bans were issued for many counties as a result of the dryconditions and many counties were declared federal disaster areas as a result of the drought.Lee County1 WSW Saltillo 01 1438CST1453CST 0 0 0.00K Thunderstorm Wind (50EG)Straight line winds knocked down several trees and power lines just west of Saltillo.A cluster of storms developed along an old outflow boundary and moved across Northeast Mississippi during the afternoonhours of August 1, 2012. One severe storm produced damaging winds in Lee County. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Panola County3 SE Pope 13 1646CST1651CST 0 0 0.00K Hail (1.75)Marshall CountyWarsaw 13 1840CST1850CST 0 0 0.00K Hail (1.25)MISSISSIPPI, SouthHalf dollar size hail fell near the intersection of Highway 309 and St. Paul Road.A cold front pushed across North Mississippi during the evening hours of August 13, 2012. A couple of severe thunderstormsdeveloped with large hail.Harrison County4 NE Wool Market 01 1641CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)An off duty Air Force officer from Keesler AFB reported several trees down along Lorraine Road near Highway 67. Small hailand flooding rainfall was also reported.A hot, unstable airmass allowed the development of a severe thunderstorm along the afternoon sea breeze boundary on theMississippi coast. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Pearl River CountyMc Neil 09 1024CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)Wind damage was reported to a barn and surrounding structures between Highway 43 and Highway 11 near McNeil. The radarsignature was indicative of a downburst between 1119 and 1124 CDT.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.237

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, SouthWalthall County2 N Mesa 09 1507CST1515CST 0.33 170 0 0 30.00K 0.00K Tornado (EF0)Damage reported at St. Francis Animal Sanctuary. An outbuilding that houses dogs was destroyed with numerous dogsinjured...one fatally. A large tree was uprooted. Numerous 600 pound dog houses were blown 50 to 120 feet. A facility on pierswith straps was moved 6 feet off of the piers. Estimated wind speed was 85 mph. Path length one third of a mile and path width500 feet.An unseasonably strong cold front triggered the development of severe thunderstorms during the late morning and afternoonhours.MSZ080>082Hancock - Harrison - Jackson28300600CST1200CST 0 0 4.8M 0.00K Storm Surge/Tide28300600CST1000CST 0 0 300.0K 0.00K Tropical StormMSZ068>071-077-081>082Amite - Harrison - Jackson - Pearl River - Pike - Walthall - Wilkinson28300600CST1000CST 1 1 1.4M 0.00K Tropical StormHarrison County2 W Long Beach2 N Riceville29301230CST0300CST 0 0 500.00K 0.00K Flash FloodRainbands associated with Tropical Storm Isaac persisted over Harrison County producing torrential rainfall. US Highway 49near Orange Grove was impassable for periods of time due to flooding and several secondary roadways were flooded in thecounty. A number of houses also had flooding. High tide levels limited the runoff of heavy rainfall in the coastal area.Harrison County1 SSW Gulfport 29 1618CST1621CST 0.5 25 0 0 25.00K 0.00K Tornado (EF1)The tornado moved inland and uprooted a tree after crossing Beach Boulevard. It caused significant damage to a home underconstruction on the corner of 15th Street and 18th Avenue. All walls of the home were shifted and leaning, with a portion of theroof collapsed. The tornado also collapsed the porch roof of a home on 19th Avenue. It caused mainly tree damage as itcontinued to move NNW before lifting.Jackson County1 S Ocean Spgs Arpt 29 1814CST1816CST 0.43 40 0 0 40.00K 0.00K Tornado (EF1)A tornado touched down in the Gulf Park Estates area causing damage to roofs on several houses and blowing out windows. Afew trees were downed and large tree branches snapped. Path length approximately 0.4 miles. Path width 40 yards.Pearl River County3 S Nicholson2 NNW Caesar29301900CST1200CST 0 0 1.00M 0.00K Flash FloodRainbands associated with Tropical Storm Isaac produced torrential rainfall across the county. Extensive secondary roadwayflooding was reported and some houses flooded. A number of water rescues were conducted due to the flooding. InterstateHighway 59 at mile marker 31 was closed for several hours due to flooding.Pike County3 WNW Oakland5 SW Terrys Creek29302100CST0600CST 0 0 250.00K 0.00K Flash FloodRainbands from tropical storm Isaac persisted over the region producing heavy rainfall. Secondary roadways were floodedalong with a few houses.238

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, SouthWalthall County21 WNW Dinan22 W Dillon29302100CST0600CST 0 0 250.00K 0.00K Flash FloodRainbands from tropical storm Isaac persisted over the region producing heavy rainfall. Secondary roadways were floodedalong with a few houses.Jackson County5 ESE Jackson Co Arpt1 SW Ocean Spgs Arpt30 0330CST1400CST 0 0 1.20M 0.00K Flash FloodRainbands associated with Tropical Storm Isaac persisted over Jackson County during the overnight and morning hoursproducing torrential rainfall. Flooding of secondary routes was reported over much of the area. A number of high water rescueswere necessary when neighborhoods in the Pascagoula and Escatawpa areas were flooded in the early to mid morning.Jackson County2 SW Pascagoula 30 0610CST0612CST 0.77 40 0 0 75.00K 0.00K Tornado (EF2)A tornado touched down in the south portion of Pascagoula. Most of the damage was consistent with EF-1 scale damageconsisting of downed trees and light structural damage to a few houses. A small area of significant damage...EF-2...occurredwhere nearly all of the roof of a large house was blown off. Path length 0.7 miles. Path width 40 yards.Hurricane Isaac entered the Gulf of Mexico as a tropical storm on August 26, moving northwest after crossing Haiti, Cuba andthe Florida Straits. Isaac moved slowly north northwest over the eastern Gulf . Isaac strengthened into a hurricane on themorning of the 28th when it was 75 miles south southeast of the mouth of the Mississippi River. Isaac made landfall inPlaquemines Parish as a Category 1 Hurricane near Southwest Pass of the Mississippi River on the evening of the 28th. Asecond landfall occurred near Port Fourchon the following morning. The storm weakened to a tropical storm on the afternoonof the 29th about 50 miles west southwest of New Orleans, and weakened further to a tropical depression on the afternoon ofthe 30th near Monroe, Louisiana.Even though Issac was of hurricane status from near the mouth of the Mississippi River into southeast Louisiana, only tropicalstorm force winds were recorded on land areas of Mississippi. The maximum sustained wind in south Mississippi was 46 knotsor 53 mph measured at the Gulfport Airport (KGPT) during the early afternoon of August 29th. A portable weather station(Weatherflow Inc) near Gulfport measured a 48 knot gust, or 55 mph, late on the morning of August 29. Maximum wind gustof 58 knots or 67 mph was recorded at the NOAA NOS Bay Waveland station and also at Gulfport (Weatherflow Inc) late onthe morning of Aug 29. The long duration of tropical storm force winds downed some trees and power lines across the region.The minimum sea level pressure measured from a land station was 995.9 mb the NOAA-NOS station at Bay-Waveland stationduring the early morning of Aug 29th. A storm tide ranged from approximately 5 feet in Jackson County to nearly 10 feet inHancock County closer to Isaacsâs center. These values are approximately 3 to 8 feet above normal astronomical values. Stormsurge flooding impacts were greatest in Hancock County. Persistent rainbands affected south Mississippi, especially thecoastal sections produced heavy rainfall over a three day period. 10 to 20 inches of rainfall was common across the region. Aco-operative observer near Pascagaoula recorded the maximum reading of 22.20 inches of rain. Heavy rainfall produced bothflash flooding and later moderate to major river flooding. Record crests were observed on the Wolf River near Landon (Aug31) and Gulfport (Sep 1), and the East Hobolochitto River near Cesear (Aug 31). Storm surge and high tides restricted outflowof the rivers near the coast and lakes exacerbating flooding of low lying areas along rivers and bayous near the coast as theyemptied into the Gulf.There were two weak tornadoes documented that occurred along Mississippi coast which resulted in generally minor propertydamage.Overall , impacts from Isaac resulted in at least $7 million in damages in south Mississippi and one direct fatality. Much of thedamage in the coastal counties of Hancock, Harrison, and Jackson, damage was related to storm surge on the coast, flashflooding, or river flooding. There will likely be adjustments in the damages as additional information and assessments aremade. There was one direct fatality in south Mississippi on morning of Aug 30 when a tree fell on a tow truck killing the 52year old male driver.239

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSISSIPPI, SoutheastStone CountyMc Henry 29 1237CST1239CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)George County9 WSW Basin5 E RubleWinds estimated at 60 mph damaged a grocery store roof.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.29301700CST1200CST 0 0 0.00K 0.00K FloodGeorge County4 N Latonia 2930George CountyAgricola 2930Red Creek was bankful and rising due to heavy rain.2100CST1400CST 0 0 10.00K 0.00K Flash FloodA rain gauge measured 17.60 inches of rain for the event.2100CST1400CST 0 0 10.00K 0.00K Flash FloodHeavy rain caused water to cover Highway 613 and enter houses in the area.Greene CountyLeakesville1 N Dueitt29302100CST1400CST 0 0 50.00K 0.00K Flash FloodHeavy rains from Hurricane Isaac led to numerous water rescues in the Leakesville area.Greene County5 WSW Leakesville 29302100CST0300CST 0 0 0.00K 0.00K Flash FloodVery heavy rain from Isaac caused water flow over Highway 57 near Hillman.Stone CountyMc HenryWiggins29302100CST1300CST 0 0 50.00K 0.00K FloodSeveral roads were closed from flooding that occurred overnight...City Bridge Road near the town of Big Level...RicevilleRoad near Mchenry and Ralph Miller Road in the eastern portion of the county.Hurricane Isaac moved into central Louisiana. This track brought very heavy rainfall to southeast Mississippi along withtropical storm force wind gusts.MISSOURI, EastMOZ041-047>051-059>065-072>075-084>085-099Boone - Callaway - Cole - Crawford - Franklin - Gasconade - Iron - Jefferson - Madison - Moniteau -Montgomery - Osage - Reynolds - St. Charles - St. Francois - St. Louis - St. Louis (Central) - Ste.Genevieve - Warren - Washington01 0000CST2200CST 0 0 0.00K 0.00K Excessive HeatA two-day heat wave that started on July 31 continued into August 1. High temperatures were around 105 degrees with theHeat Index from 105 to 110. The St. Louis County Health Department reported 6 people treated for heat at area emergencyrooms.240

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, EastMOZ018-026>027-034>036-041>042-047>052-059>065-072>075-084>085-099Audrain - Boone - Callaway - Cole - Crawford - Franklin - Gasconade - Iron - Jefferson - Knox - Lewis -Lincoln - Madison - Marion - Moniteau - Monroe - Montgomery - Osage - Pike - Ralls - Reynolds - Shelby- St. Charles - St. Francois - St. Louis - St. Louis (Central) - Ste. Genevieve - Warren - Washington01310000CST2359CST 0 0 0.00K 0.00K DroughtExtreme Drought (D3) conditions continued across all of the area through the month of August. By the middle of the month,most of Boone and Moniteau counties were moved into Exceptional Drought (D4) status.St. Louis CountyEureka 04 0330CST0332CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A microburst moved through the Shaw's Garden Subdivision, blowing down several large trees and numerous tree limbs. Acouple of homes and vehicles were damaged by fallen trees or tree limbs. Also, numerous power lines and a couple of powerpoles were blown down. The damage extended across Highway 109 into the Augustine Heights Subdivision snapping off acouple of large trees as well as tree limbs.Scattered showers and thunderstorms developed north of a warm front. Some of the storms produced damaging winds. Note:The estimated wind gust of 61 knots is equivalent to 70 mph.Gasconade County5 NNE Rosebud 04 2036CST 0 0 0.00K 0.00K Hail (0.88)Franklin County4 S New Haven 04 2038CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)Note: The measured wind gust of 61 knots is equivalent to 70 mph.Franklin County2 WNW Washington1 NNE South Pt04 2047CST2055CST 0 2 0.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds caused widespread tree and power line damage across Washington. Two people sustained minor injuriesfrom flying debris in the parking lot of the Washington Town and Country Fair. Also, several tents were blown down.Fortunately, the fair grounds had been evacuated.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Warren County2 ESE Dutzow 04 2050CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Franklin County1 E Villa Ridge1 WNW PacificThunderstorm winds uprooted a one and a half foot diameter tree near the Warren/St. Charles county line just off of Highway94.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.04 2100CST2112CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew down several large trees between Villa Ridge and Pacific.St. Louis County1 SSE St Louis Arrowhead ARobinwood WestNote: The estimated wind gust of 56 knots is equivalent to 64 mph.04 2125CST2127CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)Thunderstorm winds blew down numerous large tree limbs in Chesterfield and Maryland Heights.Jefferson County1 WNW Cedar Hill2 N Byrnes MillNote: The estimated wind gust of 65 knots is equivalent to 75 mph.04 2139CST2145CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds blew down several large trees and numerous tree limbs and power lines over the northern portions ofJefferson County.241

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, EastGasconade County4 SE Bland3 NNW RedbirdStorms developed just ahead of a strong cold front. Several of the storms produced damaging winds. Note: The estimatedwind gust of 56 knots is equivalent to 64 mph.08 1733CST1734CST 0 0 0.00K 0.00K Hail (0.88)There were several reports of nickel size hail south of Bland.Cole County2 S Lohman 08 1827CST 0 0 0.00K 0.00K Hail (1.75)Cole County2 SE Jefferson City 08 1855CST 0 0 0.00K 0.00K Hail (0.88)St. Charles CountyNew Melle 08 2034CST 0 0 0.00K 0.00K Hail (1.00)St. Charles CountyNew Melle 08 2034CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.St. Charles County1 W St Peters 08 2100CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew down a large tree limb.Storms developed along an old ouflow boundary. Some of the storms produced large hail and a few reports of damaging winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Franklin County1 WNW Pacific 16 1405CST 0 0 0.00K 0.00K Hail (0.75)St. Louis (c) County3 NE Carondelet 16 1442CST 0 0 0.00K 0.00K Hail (1.00)Jefferson CountyArnold 16 1443CST 0 0 0.00K 0.00K Hail (0.88)Jefferson CountyHillsboro 16 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds blew down several power lines in town.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Crawford CountySteelville 16 1515CST 0 0 0.00K 0.00K Hail (0.88)Osage County1 NW Judge 16 1526CST 0 0 0.00K 0.00K Hail (0.88)A strong cold front moved through the region, triggering showers and thunderstorms. Some of the storms produced large hailand damaging winds.St. Charles County1 NNE Ft Zumwalt 31 1634CST1635CST 0.4 120 0 0 0.00K 0.00K Tornado (EF0)242

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, EastA tornado touched down on the south side of Fort Zumwalt North High School on the south end of the school running track.The tornado travelled to the northwest along the periphery of the school grounds, knocking down several trees. Also, somedebris was blown onto the tennis courts and a truck parked nearby had one of its windows broken from flying debris. As thetornado curved back to north, it went over the football field. A separate set of standalone aluminum bleachers on the south endof the main grandstand were blown over. The tornado then blew the soccer goal posts, which had been on the ends of thefootball field, west towards a line of trees that separates the school property from a nearby subdivision. The tornado thencrossed Tom Ginnever Avenue. It knocked down several small trees and blew unanchored playground equipment belonging toa nearby preschool to the north towards a small parking lot. Before lifting and dissipating, the tornado knocked over a small setof bleachers and a portion of a 4 foot high chain-link fence that surrounded the outfield of a baseball diamond. The tornadowas on the ground for a little over four tenths of a mile and had a max path width of 120 yards. The damage was rated EF0.With the remnant low of the Hurricane Isaac centered over southwestern Missouri, numerous showers and thunderstormsdeveloped and rotated cyclonically around the remnant low. A few of the thunderstorms produced brief spinup tornadoes.MISSOURI, LowerMOZ113-115Dunklin - Pemiscot01310000CST2359CST 0 0 0.00K DroughtBelow normal rainfall continued during the month of August across the Missouri Bootheel. As a result, exceptional (D4)conditions continued across the area. As a result, many crops that were planted during the spring struggled to grow due to lackof water. Irreversible damage was done to the corn crop while soybean and sorghum fields yield potential continued to dwindleas a result of the dry conditions. Many pastures were in poor condition forcing farmers to feed cattle baled hay. Cattle werebeginning to have a hard time finding adequate water sources. Lake and river levels continued to be at low levels. Burn banswere issued for many counties as a result of the dry conditions. The counties in the Missouri Bootheel were declared federaldisaster areas as a result of the drought.MISSOURI, NortheastMOZ009-010Clark - Scotland01280000CST2359CST 0 0 0.00K 0.00K DroughtPersistent high pressure over the Central United States continued to keep much needed precipitation from the area. Althoughtemperatures were 2 degrees below average for the month, precipitation was 2 inches below normal. These conditions acrossthe region allowed extreme drought to continue through the month of August for northeast Missouri.MISSOURI, NorthwestMOZ001>008-011>017-020>025-028>033-037>040-043>046-053>054Adair - Andrew - Atchison - Bates - Buchanan - Caldwell - Carroll - Cass - Chariton - Clay - Clinton -Cooper - Daviess - De Kalb - Gentry - Grundy - Harrison - Henry - Holt - Howard - Jackson - Johnson -Lafayette - Linn - Livingston - Macon - Mercer - Nodaway - Pettis - Platte - Putnam - Randolph - Ray -Saline - Schuyler - Sullivan - Worth01310000CST2359CST 0 0 0.00K 0.00K DroughtDry conditions, which started in the spring, intensified during the month of August. Drought D2 and D3 conditions at thebeginning of the month, increased to D3 and D4 conditions by the end of the month. Most locations by the end month,continued yearly rainfall deficits in the 10 to 15 inch range.Buchanan County1 S St Joseph 08 1739CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)The ASOS at the Saint Joseph Airport measured a thunderstorm wind gust to 63 mph.Note: The measured wind gust of 55 knots is equivalent to 63 mph.243

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, NorthwestPlatte County(MCI)Ks City Intl Ar 08 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)The ASOS at the Kansas City International Airport measured a thunderstorm wind gust to 63 mph.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Jackson County1 NNW Kansas City 08 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph at the City Market in Kansas City.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jackson County1 S Lees Summit 08 1832CST 0 0 0.00K 0.00K Hail (1.00)One inch hail was reported at 15th and Todd George.Clay County3 S Holt 08 1840CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Power poles were snapped off between Kearney and Holt. Thunderstorm wind gusts were estimated up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clay County1 S Smithville 08 1841CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph in Excelsior Springs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clay County1 E Mosby 08 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Two to four inch diameter tree limbs were reported down. Thunderstorm wind gusts were estimated up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jackson County1 S Lees Summit 08 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph. A four inch diameter tree was snapped off at Chipman Road andBristle Street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clay County1 S Glenaire 08 1848CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts were estimated up to 60 mph. Numerous trees were reported down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bates County3 N Merwin 08 1900CST 0 0 0.00K 0.00K Hail (0.75)Daviess County4 E Pattonsburg 08 1937CST 0 0 0.00K 0.00K Hail (1.75)Daviess County1 W Pattonsburg 08 1940CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)A trailer was blown off its foundation and several trees were reported down as well. Thunderstorm wind gusts were estimatedup to 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.244

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, NorthwestDaviess County1 S Pattonsburg Arpt 08 1940CST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)Numerous trees and power lines were reported down, along with several outbuildings, near Cord Avenue and 69 Highway.Thunderstorm wind gusts were estimated up to 70 mph.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Daviess County1 SSW Coffey 08 1943CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)MISSOURI, SoutheastThunderstorm wind gusts were estimated up to 70 mph near Coffey.A cold front moved southeast across Missouri, during the late afternoon and evening hours of August 8, 2012. The frontproduced scattered thunderstorms across the area. Some of them became severe with large hail and damaging winds. Note: Theestimated wind gust of 61 knots is equivalent to 70 mph.MOZ076-086-100-107>112-114Bollinger - Butler - Cape Girardeau - Carter - Mississippi - New Madrid - Perry - Ripley - Scott - Stoddard- Wayne01310000CST2359CST 0 0 0.00K DroughtThe drought which began in May reached its most extreme stage by early August. Through the month of August, all ofsoutheast Missouri was in extreme to exceptional drought. The exceptional drought conditions were along and south of a linefrom Doniphan to Jackson. The remainder of southeast Missouri was in extreme drought conditions. Soil moisture deficitsremained very high. Throughout August, 80 to 100 percent of the region's topsoil and subsoil moisture was reported as short orvery short. Many crops were heavily damaged, and numerous counties were declared natural disaster areas. Corn crops were apartial or complete loss. Soybeans were faring somewhat better. The percentage of pastures rated as poor or very poor heldsteady from July. Some small trees and shrubs were killed. Ponds across the region were dry or drying quickly. Even with theisolated rainfall from thunderstorms, fire danger remained high. Bans on outdoor burning were in place for numerous countiesin southeast Missouri. Streamflows were running normal to below normal. At the Cape Girardeau airport, 1.44 inches of rainfell in August, which was only about half of normal. Rainfall for the year-to-date was 14.27 inches, which was 16.58 inchesbelow normal. The drought began in May and continued into September.Perry CountyBiehle 02 1025CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)A section of roof was blown off a large machine shed.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Stoddard County4 SW Dexter 03 0100CST 0 0 0.00K 0.00K Hail (1.00)Bollinger County6 W ZalmaGipsyA couple of isolated severe storms occurred along a weak warm front that extended from southern Missouri across southernIllinois.03 1612CST1615CST 0 0 0.00K 0.00K Hail (1.75)Hail from half-dollar to golf-ball size was reported several miles west of Zalma.A severe storm developed along a weak warm front that extended from west to east across southern Missouri. The stormoccurred in a hot and very unstable air mass during the heat of the afternoon.MOZ108>112-114Butler - Mississippi - New Madrid - Ripley - Scott - Stoddard04 1300CST1800CST 0 0 0.00K 0.00K HeatA southerly wind flow ahead of a cold front over central Missouri brought very hot and humid conditions. Along and south of aline from Sikeston to Poplar Bluff and Doniphan, high temperatures were in the mid 90's. The heat index topped out from 105to 110 degrees.245

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SoutheastWayne CountyGreenville 16 1504CST 0 0 0.00K 0.00K Hail (0.75)Wayne CountyPatterson 16 1515CST 0 0 0.00K 0.00K Hail (0.88)Ripley CountyDoniphan 16 1544CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)A wind gust to 68 mph was measured.Note: The measured wind gust of 59 knots is equivalent to 68 mph.Ripley County4 NE Doniphan 16 1553CST 0 0 0.00K 0.00K Hail (1.25)Butler CountyHendrickson 16 1604CST 0 0 0.00K 0.00K Hail (1.25)Butler County7 NW Poplar Bluff 16 1606CST 0 0 0.00K 0.00K Hail (0.75)Wind gusts were estimated near 50 mph.Storms consolidated along a cold front as it moved southeast across Illinois and Missouri. A very warm and moist air massahead of the front resulted in more than adequate instability to sustain severe storms as the front settled southeastward. Ratherweak mid-level winds were compensated for by strong instability.MISSOURI, SouthwestMOZ055>058-066>071-077>083-088>098-101>106Barry - Barton - Benton - Camden - Cedar - Christian - Dade - Dallas - Dent - Douglas - Greene - Hickory- Howell - Jasper - Laclede - Lawrence - Maries - McDonald - Miller - Morgan - Newton - Oregon - Ozark- Phelps - Polk - Pulaski - Shannon - St. Clair - Stone - Taney - Texas - Vernon - Webster - Wright01310000CST2359CST 0 41 0.00K 0.00K HeatA strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weatherpattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August andtemperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for themonth of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximumtemperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where themaximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for theearly portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heatindex to be closer to the actual air temperatures.01310000CST2359CST 0 0 0.00K DroughtMOZ056>058-066>071-077>083-088>098-101>106Barry - Barton - Camden - Cedar - Christian - Dade - Dallas - Dent - Douglas - Greene - Hickory - Howell- Jasper - Laclede - Lawrence - Maries - McDonald - Miller - Morgan - Newton - Oregon - Ozark - Phelps -Polk - Pulaski - Shannon - St. Clair - Stone - Taney - Texas - Vernon - Webster - Wright01310000CST2359CST 0 0 0.00K 43.5M DroughtA persistent upper level high pressure ridge over the central portions of the country caused more dry conditions for the area.Severe to exceptional drought remained in place across southwestern Missouri through the month. Some rainfall fell by the endof the month giving some areas relief. Drought conditions ranged from extreme (D3) across central Missouri to exceptional(D4) over southwestern Missouri. For the counties of across the Missouri Ozarks and southwestern Missouri, between 50 and75 percent of the combined corn, soybeans and hay acreage was reported as a loss due to the drought. The losses and damagesto harvested yield were from the start of the planting season through the end of August.246

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestStone County4 E Lampe 01 1513CST 0 0 0.00K 0.00K Hail (0.75)Gusty winds were estimated up to 40 mph.Stone County3 SSW Lampe 01 1514CST 0 0 0.00K 0.00K Hail (0.88)Dime to nickel sized hail completely covered the ground at Dogwood Canyon Nature Park.Stone County3 SSW Lampe 01 1514CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down blocking the exit to Dogwood Canyon Nature Park.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Taney County3 ENE Ridgedale 01 1527CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)The Branson ASOS reported a 56 knots or 64 mph wind gust.Note: The measured wind gust of 56 knots is equivalent to 64 mph.Stone County1 NE Viola 01 1727CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A pontoon boat was overturned from strong winds and rough water on Table Rock Lake. This event occurred between Point 10and Point 11 on the lake. No injuries were reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Taney County1 S Branson 01 1740CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several large trees and power lines were blown down in the Branson area.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Barry County5 WNW Eagle Rock 02 2309CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)Numerous trees were blown down blocking roads at Roaring River State Park in and around the intersection of Highway 112and Highway F. Several cars and a couple buildings were damaged by the fallen trees.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Numerous trees were blown down from a downburst in and around Roaring River State Park.247

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestBarry County1 NW Eagle Rock 02 2310CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Numerous limbs and trees were blown down around the vicinity of Highway 86 south of Roaring River State Park.Summertime pulse type thunderstorms produced isolated wind damage and hail. Note: The estimated wind gust of 56 knots isequivalent to 64 mph.MOZ094Lawrence04 1400CST1800CST 0 0 0.00K 0.00K WildfireExtremely dry vegetation caused by the drought conditions led to a rapidly spreading brushfire in Lawrence County.Douglas County1 ENE Dogwood 04 1702CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Nickel sized hail and estimated wind gusts up to 60 mph was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jasper County1 E Joplin 04 1712CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported several power lines down and power outages around the city.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Newton County1 NNW Saginaw 04 1712CST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)Law enforcement reported several power lines and trees down around the city with power outages.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Christian County2 ENE Chestnutridge 04 1725CST 0 0 0.00K 0.00K Hail (0.75)Douglas County1 W Ava 04 1730CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down onto power lines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jasper County1 ENE Jasper 04 1735CST 0 0 100.00K 0.00K Thunderstorm Wind (70EG)Numerous power poles and trees blown down in the city of Jasper. Power lines and poles were blown down across Highway 71causing traffic to back up. Several tin roof structures were either peeled off or blown completely off structures. Severaldowntown businesses had their windows blown out.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.248

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestThis was the damage left behind from a downburst in downtown Jasper.Greene County3 NNW Ebenezer 04 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An off duty NWS employee reported 60 mph wind gusts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lawrence County1 SE Miller 04 1805CST 0 0 0.00K 0.00K Hail (1.00)Lawrence County2 ESE Miller 04 1810CST 0 0 0.00K 0.00K Hail (1.50)Lawrence County1 ESE Miller 04 1810CST 0 0 50.00K 0.00K Thunderstorm Wind (60EG)Numerous trees and power lines were blown down around the town of Miller. The high school bleachers at the football fieldwere blown across the field. The high school scoreboard was completely blown down and destroyed.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Dade County3 SW Hulstan 04 1815CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees and power lines were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene CountyAsh Grove 04 1825CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down across Highway 160.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County1 N Ash Grove 04 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained weather spotter estimated wind gusts up to 60 mph.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.249

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestLawrence County1 E Lawrenceburg 04 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene CountyAsh Grove 04 1828CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Emergency management estimated wind gusts up to 60 mph.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Phelps County1 SSE Dillon 04 1832CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A storm chaser reported wind gusts up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Taney County2 SSE Bradleyville 04 1834CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down blocking Highway 125.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Texas County1 NW Huggins 04 1835CST 0 0 0.00K 0.00K Hail (0.88)Dade County1 N Emmet 04 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several large tree branches were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County2 NNE Springfield 04 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A flatbed trailer was blown 20 yards at the Ozark Empire Fair Grounds.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Texas County1 E Houston 04 1851CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Numerous large tree limbs were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Taney County2 NE Ike 04 1855CST 0 1 50.00K 0.00K Thunderstorm Wind (56EG)Numerous trees were blown down with one home damaged near Goodnight Hollow and Round Mountain Roads. One personhad minor injuries.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Greene County1 E Springfield 04 1858CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A traffic signal light was blown down on the north side of the city.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County3 SE Van 04 1858CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Amateur radio reported wind gusts up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.250

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestPolk County3 SE Van 04 1901CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)The public estimated wind gusts up to 60 mph and several trees blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County1 SSW Nichols 04 1905CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down at a public golf course off Chestnutt Expressway.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dallas County1 N Olive 04 1908CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trained weather spotter estimated wind gusts up to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County1 E Nichols 04 1912CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A storm spotter estimated wind gusts up to 70 mph on the northwest side of town near I-44 and Kearney Street.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Newton County1 NE Wentworth 04 1919CST 0 0 0.00K 0.00K Hail (0.88)Polk County1 SE Pleasant Hope 04 1930CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A few trees were blown down along Highway H.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene CountyStrafford 04 1940CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lawrence County1 E Mt Vernon 04 1940CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Two large trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lawrence County3 ESE Mt Vernon 04 1940CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Several large trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Ozark County1 NE Toccoa 04 1940CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Several large tree branches and power lines were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Christian County1 S Ozark 04 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.251

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestWright County2 SW St George 04 1952CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Power lines were blown down across the road an Cope Drive near State Highway Z.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Maries County1 N Vienna 04 1955CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained weather spotter reported wind gusts up to 60 mph and nickel sized hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Christian CountyHighlandville 04 1956CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The public estimated up to 60 mph wind gusts and penny sized hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Maries County1 N Vienna 04 1957CST 0 0 0.00K 0.00K Hail (0.88)Christian CountyHighlandville 04 2004CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down onto a house causing significant damage to the house.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Phelps CountyRolla 04 2005CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several large branches were blown down at the city park.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene CountyRepublic 04 2006CST 0 0 0.00K 0.00K Thunderstorm Wind (51EG)A trained weather spotter reported wind gusts up to 60 mph.Note: The estimated wind gust of 51 knots is equivalent to 59 mph.Christian County3 ESE Keltner 04 2021CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several large trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mcdonald County1 E Mt Shira 04 2133CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A sheriff deputy reported 60 to 70 mph wind gusts south of Lanagan. He said that the wind gusts nearly blew him off theroadway.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mcdonald County1 S Pineville 04 2135CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A sheriff deputy estimated wind gusts up to 60 mph north of Pineville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mcdonald County1 S Pineville 04 2135CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.252

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestGreene CountyRepublic 04 2324CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Amateur radio reported wind gusts up to 60 mph.A cold front moving across the area caused a cluster of strong to severe storms to develop across southwest Missouri whichproduced wind damage and severe hail. Note: The measured wind gust of 52 knots is equivalent to 60 mph.MOZ090Greene07 1500CST2200CST 0 0 0.00K 0.00K WildfireExtremely dry conditions and vegetation along with the drought conditions led to a rapidly spreading brushfire in westernGreene County.Barry County1 S Scholten 08 1337CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down blocking Highway 248 near Wheelerville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jasper County1 NW Webb City 08 1348CST 0 0 0.00K 0.00K Hail (1.00)A local media station relayed a viewer report of hail up to the size of quarters.Greene County1 S Republic 08 1422CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Large tree limbs were blown down.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Barton County4 S Newport 08 1430CST 0 0 0.00K 0.00K Hail (0.88)Greene County2 SE Nichols 08 1430CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees and large branches were knocked down across the city.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County1 E Springfield 08 1430CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several power lines were blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Taney County1 S Branson 08 1430CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A power line and large tree banches were blown down near downtown Branson.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene CountyRepublic 08 1445CST 0 0 0.00K 0.00K Hail (0.88)Greene CountyRepublic 08 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.253

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestDallas County2 ENE Louisburg 08 1502CST 0 0 0.00K 0.00K Hail (0.75)Dallas County1 WNW Pumpkin Center 08 1515CST 0 0 0.00K 0.00K Hail (1.50)Dade County5 S Sylvania 08 1605CST 0 0 0.00K 0.00K Hail (1.00)Newton County2 SSW Hornet 08 1640CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Four trees were blown down and five homes had minor roof damage.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Maries County1 ENE Vienna 08 1647CST 0 0 0.00K 0.00K Hail (0.88)Wind gusts up to 45 mph were also reported.Maries County1 NE Yarna 08 1722CST 0 0 0.00K 0.00K Hail (0.88)An upper level shortwave along with high instability developed several clusters of strong to severe thunderstorms that producedisolated wind damage and severe hail.Webster County1 SSW Seymour 16 1155CST 0 0 0.00K 0.00K Hail (1.00)Christian County1 E Bruner 16 1216CST 0 0 0.00K 0.00K Hail (0.75)Texas County1 E Licking 16 1239CST 0 0 0.00K 0.00K Hail (0.88)Dallas County1 NNW Buffalo Arpt 16 1330CST 0 0 0.00K 0.00K Hail (0.88)Shannon County2 W Round Spg 16 1330CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)A COOP observer from Round Springs had a large tree blown down in their yard and nickel sized hail.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Laclede County1 E Lebanon 16 1331CST 0 0 0.00K 0.00K Hail (0.75)Laclede County1 E Lebanon 16 1332CST 0 0 0.00K 0.00K Hail (1.00)Texas County1 E Summersville 16 1350CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)A barn was destroyed by downburst winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wright County1 E Grovespring 16 1441CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts up to 60 mph were estimated.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.254

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestPhelps County1 S Dillon 16 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated from 50 to 60 mph and dime sized hail was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Webster County1 E St Luke 16 1557CST 0 0 0.00K 0.00K Hail (1.00)Webster County1 NE Marshfield 16 1559CST 0 0 0.00K 0.00K Hail (0.88)Newton County1 ESE Neosho 16 1600CST 0 0 0.00K 0.00K Hail (0.88)Taney County3 N Forsyth 16 1600CST 0 0 0.00K 0.00K Hail (1.00)Taney County2 SSE Day 16 1602CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts from 50 to 60 mph were estimated with small limbs blown down. Dime size hail was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Webster County1 N High Prairie 16 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts up to 60 mph were estimated near Highway JJ and Highway 38.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lawrence CountyPierce City 16 1628CST 0 0 50.00K 0.00K Hail (1.75)Webster County1 NE Marshfield 16 1628CST 0 0 0.00K 0.00K Hail (0.75)Barry County1 W Monett 16 1630CST 0 0 25.00K 0.00K Hail (1.75)Lawrence CountyPierce City 16 1630CST 0 0 50.00K 0.00K Hail (2.00)Several cars had dents and cracked wind shields.Greene County3 ENE Battlefield 16 1634CST 0 0 0.00K 0.00K Hail (1.00)Webster County1 NE Marshfield 16 1640CST 0 0 0.00K 0.00K Hail (1.75)Lawrence County1 NW Aurora 16 1641CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several small to medium sized tree branches were broken.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.255

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestWebster County3 E Crown 16 1644CST 0 0 0.00K 0.00K Hail (1.00)Webster County1 NE Marshfield 16 1645CST 0 0 0.00K 0.00K Hail (1.25)Wright County1 E Loring 16 1657CST 0 2 0.00K 0.00K LightningChristian County1 NNE Nixa 16 1658CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Large tree branches up to five inches in diameter were blown down across CC Highway just east of Main Street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wright County1 E Hartville 16 1700CST 0 2 1.00K 0.00K LightningA mother and her daughter were struck by lightning. The bolt hit the house and traveled through a kitchen outlet. The twowomen were taken to a local hospital and were later released. No fire was caused by the bolt but some minor damage from thebolt was visible in the kitchen by charring around the outlet.Lawrence County1 S Verona 16 1700CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)About two-thirds of a roof was blown off of a mobile home.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Greene County3 ENE Battlefield 16 1720CST 0 0 0.00K 0.00K Hail (1.00)Greene County2 W Wildwood Estates 16 1720CST 0 0 0.00K 0.00K Hail (1.00)Mostly dime sized hail with a few up to the size of quarters were reported. NWS employee automated backyard AcuRiteweather station reported a 46 mph wind gust and nearly 2 inches of rainfall in one hour. Minor street flooding was reported dueto the heavy rainfall.Greene County2 E Battlefield 16 1725CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several large tree branches were knocked down. A large tree was blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Webster County6 E Crown 16 1750CST 0 0 0.00K 0.00K Hail (0.75)Webster County4 SSE Marshfield 16 1751CST 0 0 0.00K 0.00K Hail (0.88)Webster County1 ENE St Luke 16 1807CST 0 0 0.00K 0.00K Hail (0.75)A rather strong cold front and upper level shortwave moved across the Missouri Ozarks causing strong to severe storms todevelop. These storms mainly produced damaging wind gusts and a several reports of large hail. Two people were injured froma lightning strike.Miller County3 NW Tuscumbia 22 1310CST 0 0 1.00K 0.00K Dust Devil256

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MISSOURI, SouthwestEmergency manager reported minor damage occurred at a chicken farm off Highway 52 about 3 miles west of Tuscumbia.Sheet metal was peeled and blown off a chicken house. No gradient winds were observed at surrounding ASOS or AWOSstations. This may have been caused by a localized dust devil with winds estimated up to 50 mph.A possible dust devil caused minor damage to chicken houses at a farm. It was a clear day with no convection or thunderstormactivity in the area and strong afternoon heating of the surface.A possible dust devil caused minor damage to a chicken farm in Miller County, Missouri near Tuscumbia.MOZ079Polk23 1400CST1700CST 0 0 25.0K 0.00K WildfireRed flag conditions during the afternoon of August 24th led to the development of fast spreading brushfires in Polk County.MOZ091Webster30 1500CST2000CST 0 1 300.0K 0.00K WildfireDrought conditions across the area and gusty winds with the approaching low pressure of the remnants of Isaac caused thedevelopment and rapid spread of a large brushfire in Webster County.MONTANA, CentralMTZ048Southern Rocky Mountain Front01310000MST2359MST 0 0 0.00K 0.00K WildfireThe Elbow Pass Complex is comprised of five different lightning ignitions from July 12 through July 31. These fires havemerged into one fire, the Elbow Pass Complex: Triple Divide Fire, Rapid Creek Fire, Elbow Pass Fire, and Bar Creek Fire. Thefires are generally located 25 miles west southwest of Augusta, Montana. The Falls Point fire is south of the Complex. All arelocated in inaccessible terrain in heavy fuels. The fires are in the Bob Marshall and Scapegoat Wilderness Areas and are onthree forests; The Flathead, Lolo and Lewis & Clark. As of September 6, 2012, the fire has burned 21,069 acres.Acreage breakdown as of 6 Sep 2012: 16,259 acres Lewis & Clark NF; 4,033 acres Flathead NF; 777 acres Lolo NF. FallsPoint Fire Acreage: 222 acres Lolo NF.MTZ014Southern Lewis and Clark21312300MST2359MST 0 0 0.00K 0.00K Wildfire257

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MONTANA, CentralThe East Fork Fire was reported on August 22, 2012 and was caused by lightning from thunderstorms that went through theLincoln area on Tuesday, August 21st. The fire burned over 1,100 acres in mostly heavy timber of the Scapegoat Wilderness inthe Helena National Forest-Lincoln Ranger District. The fire burned along the border of Powell and Lewis and Clark counties.22311500MST2359MST 0 0 0.00K 0.00K WildfireThe Stonewall Fire was ignited by lightning from a thunderstorm that came through the area at about 3 p.m. on Monday,August 27. The fire burned about 12 acres in heavy, dense timber in the Helena National Forest-Lincoln Ranger District, aboutone mile south of the Stonewall Lookout and about five miles north of the town of Lincoln, Montana. Smoke was visible fromHighway 200. The fire may continue to smolder for a period of time but is considered 100% contained.MONTANA, EastDaniels County14 NNW Four Buttes 01 1355MST 0 0 0.00K 0.00K Hail (0.75)Spotter reported plentiful amounts of penny-sized hail stones.Daniels County10 NNW Four Buttes 01 1355MST 0 0 0.00K 0.00K Hail (1.00)Public reported up to quarter-sized hail stones.Roosevelt County19 E Bredette 01 1445MST 0 0 0.00K 0.00K Hail (1.50)Public reported ping pong ball-sized hail stones.Sheridan County17 S Redstone 01 1445MST 0 0 0.00K 0.00K Hail (1.50)Public reported ping pong ball-sized hail stones.Sheridan County13 S Redstone 01 1445MST 0 0 0.00K 0.00K Hail (1.00)Public reported quarter sized hail stones and 60 mph wind gusts.Roosevelt CountyFroid 01 1535MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Spotter estimated 60-mph wind gusts.Plentiful surface moisture and a marginally unstable atmosphere allowed a severe thunderstorm to develop along a stationaryfront emerging from Saskatchewan. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Prairie County1 NW Terry 02 0934MST 0 0 0.00K 0.00K Hail (0.75)Public reported mainly pea-sized hail mixed with some penny-sized stones.Prairie County9 W Mildred 02 1400MST 0 0 0.00K 0.00K Hail (0.88)Public reported hail up to the size of nickels.A low pressure system, dry line, favorable winds, and a fairly unstable atmosphere allowed marginally severe thunderstorms todevelop across eastern Montana.Garfield County6 NNW Brusett 13 0515MST 0 0 0.00K 0.00K Hail (1.50)Spotter reported hail up to the size of ping pong balls covering the ground.258

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MONTANA, EastGarfield County8 NE Jordan 13 1214MST 0 0 0.00K 0.00K Hail (1.00)Spotter reported quarter-sized hail stones covering the ground and 40-mph winds.Garfield County8 SSE Van Norman 13 1315MST 0 0 0.00K 0.00K Hail (1.00)Spotter reported quarter-sized hail stones and wind gusts up to 50 mph.Dawson County3 SSW Glendive Dawson Arpt 13 1439MST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)Spotter's Davis instrument recorded sustained winds above 50 mph and a gust of 71 mph directly ahead of the thethunderstorm.Note: The measured wind gust of 62 knots is equivalent to 71 mph.Dawson CountyGlendive Dawson Arpt 13 1445MST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)A 72-mph wind gust was measured at the Glendive Airport AWOS site.Note: The measured wind gust of 63 knots is equivalent to 72 mph.Garfield County10 N Cohagen 13 1553MST 0 0 0.00K 0.00K Hail (0.88)Spotter reported nickel-sized hail stones.Garfield County4 NNE Cohagen 13 1606MST 0 0 0.00K 0.00K Hail (1.00)Public reported quarter-sized hail stones.Favorable wind shear and a surface warm front formed the focus for severe thunderstorm development across eastern Montana.MONTANA, SouthMTZ031-057-058Northern Big Horn - Northern Rosebud - Southern Rosebud01 0000MST 0 0 Wildfire08Multiple lightning strikes during the late evening hours of July 31st resulted in the start of several wildfires. The East Sarpy,Little Dry Creek, Dawes, West Tullock Creek, Castle Rock II, and South Tullock Creek fires burned together on August 1stand 2nd and were re-named the Sarpy Hills Complex.The fire fuels were mainly grass and brush with some timber. Total area burned was 82,000 acres. There were about 400personnel, 30 engines, eight crews, and many types of equipment used to fight the fire. The first fire originated on July 31st 6miles northeast of Crow Agency. Total containment of the Sarpy Hills Complex was reached on August 9th.More detailed information can be found at www.inciweb.org.Powder River County3 SSE Epsie 02 1258MST 0 0 0.00K 0.00K Hail (1.75)Carter County1 N Boyes 02 1350MST 0 0 0.00K 0.00K Hail (1.00)Carter County1 NE Boyes 02 1404MST 0 0 0.00K 0.00K Hail (1.00)259

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MONTANA, SouthCarter County1 NNE Boyes 02 1422MST 0 0 0.00K 0.00K Hail (1.00)Low level moisture along with surface dew points in the 50s combined with a dry line/convergence zone helped contribute tothe development of severe thunderstorms across portions of Southeast Montana. In addition, steep lapse rates and MLCAPE of1000-1500 J/KG and 30-40 kt westerly mid level winds resulted in sufficient deep layer shear which helped a few organizedsevere thunderstorms to produce large hail.Custer County3 SE Knowlton 13 1555MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An estimated wind gust of 60 mph was reported 3 miles southeast of Knowlton.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fallon County1 SSW Baker Arpt 13 1625MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Note: The measured wind gust of 52 knots is equivalent to 60 mph.Custer County1 NW Miles City 13 1650MST 0 0 0.00K 0.00K Hail (1.00)Custer County1 NW Miles City 13 1653MST 0 0 0.00K 0.00K Hail (1.75)Carter CountyEkalaka Arpt 13 1710MST 0 0 0.00K 0.00K Hail (1.00)Several severe thunderstorms developed across portions of Southeast Montana in the Billings Forecast Area during theafternoon and evening hours of the 13th. Some large hail and strong wind gusts were reported with these thunderstorms.MTZ035Yellowstone20251415MST1700MST 0 0 WildfireThe Highway 87 Wildfire was reported around 3:00 pm on the afternoon of Monday, August 20th. The wildfire was locatedapproximately 6 miles southeast of Billings. The fire quickly grew to several hundred acres and was fueled by tinder-dry grassand timber, along with hot, dry, windy conditions. Aggressive ground and aerial attack held the fire to 1000 to around 2000acres during the afternoon and evening of August 20th. One structure was confirmed lost. However, no injuries were reported.The fire was human caused and, at this time, remains under investigation. The fire grew to about 1,933 acres and was containedat approximately 6:00 pm on August 25th. More detailed information can be found at www.inciweb.org.MTZ029Musselshell24301300MST2300MST 0 0 WildfireThe Delphia Wildfire was reported on August 24th at approximately 2 pm. It was caused by a lightning strike on the evening ofAugust 23rd and originated 16 miles east/northeast of Roundup. The lightning ignited fire remained dormant until the afternoonof the 24th when hot temperatures, low afternoon humidities and windy conditions resulted in the fire exploding to 18,000 acresand then again to as much as 30,000 acres on the 26th. Total area burned was 40,653 acres.Air tankers and helicopters helped in the fire effort. The wildfire grew to almost 55 square miles. About 15 to 20 outbuildingswere destroyed, but no homes were lost. The area from Musselshell to Melstone and south to Custer lost power when the firedestroyed a 50-kilovolt transmission line. The fire burned in timber, grass and sage. Almost 370 crew members fought the fireincluding five helicopters, three heavy air tankers, 48 engines, 14 tenders, seven dozers, four Type 2 initial attack crews, twoType 2 fire crews and two hot shot crews.The fire was contained on August 31st at approximately 12 am. More detailed information can be found at www.inciweb.org.MTZ039Eastern Carbon28311208MST2359MST 0 0 Wildfire260

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012MONTANA, SouthThe Rosebud Wildfire originated 10 miles southwest of Roscoe, Montana on Tuesday, August 28th, at approximately 1:08 pm.The fire burned 2,397 acres and was 100% contained on Saturday, September 1st at arroximately 5 pm. The fuels consisted ofgrass and understory pine and grass with intermixed aspen.Mandatory evacuations were ordered for approximately 20 residences along Getaway Trail five miles south of Roscoe.Although one outbuilding was reported to have burned, no houses were destroyed. Total personnel consisted of about 195people, 30 engines, a pair each of bulldozers and water tenders, three helicopters, one heavy air tanker and two small enginetankers. The cause of the wildfire remains under investigation. More detailed information can be found at www.inciweb.org.MTZ064-067Absarokee/Beartooth Mountains - Paradise Valley29311405MST2359MST 0 0 WildfireThe Pine Creek Wildfire originated 9 miles south of Livingston, Montana on August 29th at approximately 3 pm. The firestarted near the Yellowstone River and quickly burned through the town of Pine Creek. After which, it moved into the steep,inaccessible terrain of the Absaroka-Beartooth Wilderness in the Gallatin National Forecast. Local firefighters, helicopters, andretardant airtankers were able to save many homes, the Pine Creek Church, and the Pine Creek Cafe. However, five homes andseveral outbuildings were lost during the first day of the fire. On the second day of the fire, the fire threatened more homes as itmoved south onto private land.The fuels burned were Timber (liter and understory), heavy, dead standing and down, as well as gray-stage beetle kill trees. Thesize of the fire was 8,572 acres and will more than likely be revised. The wildfire was contained on October 18th. The cause ofthe fire is human and remains under investigation. More detailed information can be found at www.inciweb.org.MONTANA, WestMTZ005-006Bitterroot/Sapphire Mountains - Missoula/Bitterroot Valleys08 1700MST1800MST 0 0 0.00K 0.00K WildfireMissoula County1 WNW Missoula 08 1800MST1857MST 0 0 0.00K 3.00K Thunderstorm Wind (56EG)Trees were downed near the cross streets of Phillips and Cowper by a thunderstorm wind gust.Monsoonal moisture produced high-based thunderstorms with gusty winds and little rain across western Montana. Note: Theestimated wind gust of 56 knots is equivalent to 64 mph.MTZ003Flathead/Mission Valleys14 2000MST2300MST 0 0 12.0K 0.00K Strong WindA dry cold front pushed out of Canada, producing strong northeast winds across Flathead lake.Missoula County6 NW Missoula 21 1650MST1659MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)A thunderstorm wind gust of 58 mph was recorded by the Point six RAWS, at an elevation of 7929 feet.A strong Pacific weather system with good jet support moved into western Montana and produced some strong thunderstormwinds. Note: The measured wind gust of 50 knots is equivalent to 58 mph.261

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralNEZ004>010-022>029-035>038-056>059-069>071-094Arthur - Blaine - Boyd - Brown - Chase - Custer - Deuel - Eastern Cherry - Frontier - Garden - Garfield -Grant - Hayes - Holt - Hooker - Keith - Keya Paha - Lincoln - Logan - Loup - McPherson - Perkins - Rock- Sheridan - Thomas - Western Cherry - Wheeler01310000MST2359MST 0 0 0.00K 700.0K DroughtThe drought that began late June continued to intensify as the trend of strong high pressure aloft sustained dry and hot weather.Temperatures were above average and the suppressed rainfall let to spotty rainfall in some areas. The Drought Monitorcontinued to reflect short-term impacts, while a large portion of the sandhills showed the drought exceptional (D4), otherwiseextreme drought conditions lingers for the region. Record low flows on streams have increased with an exception of the NorthPlatte River below Kingsley Dam, where higher flows were maintained for irrigation needs. The fire dangers were elevatedthrough the month. High based thunderstorms brought an increase risk of fire starts. The drought continued into September.Garden County20 NNE Lisco 01 1330MST 0 0 0.00K 0.00K Hail (0.88)Sheridan County17 NNW Lakeside 01 1355MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Winds estimated to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Arthur County6 NNW Arthur 01 1517MST 0 0 0.00K 0.00K Hail (0.88)Arthur County4 N Arthur 01 1525MST 0 0 0.00K 0.00K Hail (0.75)Rainfall of 0.90 inches fell at location.Arthur County12 SSE Arthur 01 1615MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Small branches down at location with half-inch size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cherry CountyValentine 01 1658CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)Note: The measured wind gust of 55 knots is equivalent to 63 mph.Cherry CountyValentine 01 1705CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)Note: The measured wind gust of 57 knots is equivalent to 66 mph.Brown County(ANW)Ainsworth Muni 01 1802CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.Brown County25 S Long Pine 01 1815CST1820CST 0 0 2.00K 0.00K LightningLightning ignited a hay bale fire.Brown County25 S Long Pine 01 1815CST1820CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Winds estimated to 52 knots.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.262

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralBrown County25 SSW Long Pine 01 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Tree branches down and power out at location.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Lincoln County7 S North Platte 01 1917CST 0 0 0.00K 0.00K Hail (1.50)Holt County4 SE Swan Lake 01 1917CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts estimated at 60 mph.A line of thunderstorms developed in the eastern panhandle and moved east across portions of north central and west centralNebraska during the late afternoon and evening hours on August 1st, 2012. A few of the storms were severe, containing largehail and damaging wind gusts to around 70 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Garden CountyLisco 02 1514MST 0 0 0.00K 0.00K Hail (0.75)Garden County7 SW Oshkosh 02 1525MST 0 0 0.00K 0.00K Hail (0.88)Deuel County11 NE Chappell 02 1615MST 0 0 0.00K 0.00K Funnel CloudA trained spotter reported seeing a funnel cloud reach half way to the ground.Deuel County10 WSW Big Spgs 02 1650MST 0 0 0.00K 0.00K Funnel CloudA cluster of thunderstorms in the southeast Nebraska panhandle coalesced into a large supercell in southern Garden county andtracked into Deuel county. Large hail and funnel clouds were reported. A separate thunderstorms moved across Perkinscounty, in southwest Nebraska, and produced large hail.Arthur County11 SSW Arthur 02031800MST1200MST 0 0 0.00K 50.00K LightningA lightning strike ignited the McKeage wildfire. The fire burned an estimated 7,500 acres of grassland and timber.Keith County7 WNW Lemoyne 02031800MST1200MST 0 0 0.00K 100.00K LightningA lightning strike ignited a wildfire at the Otter Creek area that burned up to 40,000 acres of grassland and timber.Keith County15 N Sarben 02031800MST1200MST 0 0 0.00K 50.00K LightningA lightning strike ignited a wildfire at the Glen Echo area that burned an estimated 7,500 acres of grassland and timber. Areasof canyon and creek valley were inaccessible for ground firefighting. The wildfire moved into southwest McPherson County.Keith County1 NE Brule5 WSW Lemoyne02031800MST1200MST 0 0 0.00K 100.00K LightningA lightning strike ignited a wildfire at the Eagle Canyon Hideaway that burned up to 3,000 acres of grassland and timber.263

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralKeith County6 NNE Lemoyne 02031800MST1200MST 0 0 0.00K 50.00K LightningA lightning strike ignited a wildfire at the Ackley Valley on the Hawthorn Ranch that burned up to 6,000 acres of grassland andtimber.Mcpherson County21 WSW Tryon 02031800CST1200CST 0 0 0.00K 50.00K LightningA lightning strike ignited a wildfire in Keith County at the Glen Echo area that burned an estimated 7,500 acres of grasslandand timber before containment in southwest McPherson County. Areas of canyon and creek valley were inaccessible for groundfirefighting. Rough terrain prevented full containment, but two National Guard UH-60 Black Hawk helicopters provided airsupport.Thursday evening high based thunderstorms produced lightning that ignited four wildfires in Keith County and one in ArthurCounty. The wildfires burned about 60,000 acres of mainly grasslands, but also threatened dozens of summer houses, townhouses, condominiums and rental cabins near the Bayside Golf Club on the southwest shore of Lake McConaughy during theEagle Canyon Hideaway Fire.NEZ035-057Arthur - Keith - McPherson02031800MST1200MST 0 0 0.00K 400.0K WildfireThursday evening high based thunderstorms produced lightning that ignited four wildfires in Keith County and one in ArthurCounty. The wildfires burned about 60,000 acres of mainly grasslands, but also threatened dozens of summer houses, townhouses, condominiums and rental cabins near the Bayside Golf Club on the southwest shore of Lake McConaughy during theEagle Canyon Hideaway Fire. One wildfire in northeast Keith County spread into southwest McPherson County. The wildfireswere contained overnight where loss of grasslands for grazing could exceed 500 thousand dollars.Perkins County8 N Venango 02 1804MST 0 0 0.00K 0.00K Hail (1.25)Perkins County5 ESE Brandon 02 1845MST 0 0 0.00K 0.00K Hail (1.00)A cluster of thunderstorms in the southeast Nebraska panhandle coalesced into a large supercell in southern Garden county andtracked into Deuel county. Large hail and funnel clouds were reported. A separate thunderstorms moved across Perkinscounty, in southwest Nebraska, and produced large hail.Keya Paha County6 S Mills 03 1700CST 0 0 0.00K 0.00K Hail (0.88)Keya Paha County9 SSE Mills 03 1705CST1730CST 0 0 0.00K 0.00K Hail (1.00)Ground was mostly white.Keya Paha CountyMills 03 1710CST 0 0 0.00K 0.00K Hail (0.88)Brown CountyLong Pine 03 1840CST 0 0 5.00K 0.00K Hail (1.75)Some windows were cracked from golf ball size hail.Brown County10 S Ainsworth 03 1850CST 0 0 0.00K 0.00K Hail (0.75)Rock County9 SW Bassett 03 1855CST 0 0 0.00K 0.00K Hail (1.00)General public reported quarter size hail.264

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralKeith CountyLake Mc Conaghy 03 1907MST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Nebraska Game and Parks Commission stated a 36 year old man drowned at 707 pm MST at Lake McConaughy. The man waspaddling a raft when it capsized during a thunderstorm.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Rock County14 SSW Bassett 03 1915CST 0 0 0.00K 0.00K Hail (1.00)Mcpherson County9 W Tryon 03 2103CST 0 0 0.00K 0.00K Hail (0.75)Lincoln County15 NNE North Platte 03 2145CST 0 0 0.00K 0.00K Hail (1.00)A scattered line of thunderstorms produced large hail along an eastward moving cold front across the eastern half of northcentral Nebraska and a small portion of west central Nebraska.Mcpherson County6 SSE Ringgold 06 1835CST 0 0 0.00K 0.00K Hail (1.25)Loup County13 N Almeria 06 1947CST 0 0 0.00K 0.00K Hail (0.75)Lincoln County5 N North Platte 06 2006CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Off duty employee reported gusts to 52 knots.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lincoln County5 N North Platte 06 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The thunderstorm wind gusts to 60 mph was accompanied with pea size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lincoln County9 N North Platte 06 2016CST 0 0 0.00K 0.00K Hail (0.75)A surface trough and disturbance aloft caused isolated thunderstorms to occur in west central Nebraska during the eveninghours. A few of the thunderstorms were severe, producing large hail and damaging wind gusts.Chase County1 W Imperial 07 1600MST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Cooperative observer reported a power pole was broken in half in Imperial. Power outages continue for the city of Imperial.Power was also lost at the automated surface observing station at the Imperial Airport.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Chase County1 W Imperial 07 1605MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)General public reported thunderstorm wind gusts estimated 50 to 60 mph as a thunderstorm passed through Imperial.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hayes County1 S Hayes Center 07 1738CST 0 0 0.00K 0.00K Hail (1.00)Hail covered the ground white.Isolated thunderstorms developed along a surface trough during the late afternoon and early evening hour across Chase andHayes county, producing large hail and damaging winds.265

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralGarden County8 SW Lewellen 11 1744MST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)General public reported thunderstorm wind gusts of 70 mph with up to quarter size hail covering yard.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Deuel County8 N Big Spgs 11 1755MST 0 0 0.00K 0.00K Hail (1.00)Deuel County5 N Big Spgs 11 1803MST 0 0 0.00K 0.00K Hail (1.00)Keith County5 W Brule 11 1808MST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)General public reported large trees blown down. Windows were broken out in quonset building and vehicle. A corral was alsoknocked down by thunderstorm wind gusts.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Cherry County6 ENE Eli 11 2010CST 0 0 0.00K 0.00K Hail (1.00)The hail was driven by winds estimated at 50 to 60 mph.Cherry County6 ENE Eli 11 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)General public reported thunderstorm wind gusts estimated at 50 to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cherry County1 E Nenzel 11 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)General public estimated thunderstorm wind gusts of 55 to 60 mph along with pea size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cherry CountyValentine 11 2103CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Note: The measured wind gust of 52 knots is equivalent to 60 mph.Cherry CountyValentine 11 2107CST 0 0 0.00K 0.00K Thunderstorm Wind (65MS)Note: The measured wind speed of 65 knots is equivalent to 75 mph.Cherry CountyValentine 11 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (65MG)Two supercell thunderstorms and several multicell thunderstorms occurred along an eastward advance surface dryline duringthe evening hours. Damaging winds and large hail was reported in Deuel, Garden, Keith and Cherry counties. Note: Themeasured wind gust of 65 knots is equivalent to 75 mph.Hooker County18 SW Mullen 26 2010MST2030MST 0 0 0.00K 0.00K Thunderstorm Wind (63EG)Thunderstorm wind gusts around 73 mph peeled metal roofs off three buildings at the Dismal River Golf Club. The strongestwinds lasted about 20 minutes.A cluster of thunderstorms tracked southeast across western portions of north central Nebraska producing areas of heavyrainfall, gusty winds, and pea size hail. The storms intensified and produced damaging winds across portions of Hooker county.Note: The estimated wind gust of 63 knots is equivalent to 72 mph.NEZ004Sheridan29311600MST2359MST 0 3 1.0M 0.00K Wildfire266

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, CentralLightning produced by high based thunderstorms ignited the Wellnitz Fire. The fire burned 77,159 acres of land, starting near10 miles north of Hay Springs that spread to across the South Dakota border onto the Pine Ridge Indian Reservation. The fireburned timber and grass, along with destroying up to 60 outbuildings and damage to 10 homes. The wildfire continued intoSeptember and was reported 100 percent contained on September 4th.Sheridan County10 N Hay Spgs 29311700MST2359MST 0 3 1.00M 0.00K LightningLightning ignited a wildfire on August 29th that spread quickly north across grassland and timbers across northwest SheridanCounty. The wildfire burned approximate 44,159 acres in Nebraska and moved north into South Dakota. Initial assessmentsshowed the wildfire burned approximately 100 power poles. The Rushville Sheriff requested an Evacuate Immediate (NWEM)message as the fire spread into parks and to alert homeowners and campers in the area. The fire stats showed 50 to 60outbuildings destroyed, and approximately 10 homes damaged. The wildfire continued into September.Lightning produced by high based thunderstorms moving northeast across Sheridan County ignited a wildfire August 29th thatburned a total of 77,159 acres of land. The wildfire spread across the South Dakota border into the Pine Ridge IndianReservation. The wildfire continued into September and was contained on September 4th. The Wellnitz fire is referenced aspart of the Region 23 Complex Fire by FEMA Region VII.NEBRASKA, EastNEZ011-015>018-030>034-042>045-050>053-065>068-078-088>093Antelope - Boone - Burt - Butler - Cass - Cedar - Colfax - Cuming - Dodge - Douglas - Gage - Jefferson -Johnson - Knox - Lancaster - Madison - Nemaha - Otoe - Pawnee - Pierce - Platte - Richardson - Saline -Sarpy - Saunders - Seward - Stanton - Thurston - Washington - Wayne01310000CST2359CST 0 0 DroughtThis drought carried over from July when record setting heat and dryness brought increasingly worse drought conditions to theregion into and beyond August. Rainfall which was already deficient for the season going into July, continued much belownormal in July and was 1 to 3 inches below normal in August over many parts of the area. The exception was far southeastNebraska where rainfall was more in the 3 to 6 inch range which helped stem the droughts worsening effects. In addition, hightemperatures consistently rose above 95 degrees during the first and last weeks of August with some sites recording a few daysabove 100. The middle part of the month saw temperatures dip well below normal thus many average temperatures for Augustended up close to normal. The persistent hot and dry weather kept many rivers at very low flows, including the Platte Riverwhich remained dry upstream of the Loup River. The drought also caused some local wells to become dry or go to very lowflow rates. The low waters prompted the Nebraska Department of Natural Resources to issue irrigation halts for selectivewaterways including the Loup, Big Blue and Elkhorn Rivers as well as Salt Creek which persisted into August. The low riverlevels and irrigation pressure from underground water sources also caused some municipalities to institute voluntary ormandatory water restrictions. According to the U.S. Drought Monitor, drought intensities in northeast Nebraska started themonth in the Extreme category, with Severe levels observed over the rest of eastern Nebraska. By the first week of AugustExtreme drought classification spread southeast to the area along and north of Interstate 80 and by the end of the month all butthe southeast corner of Nebraska was at least in the Extreme category. The drought in Nebraska and surrounding states causedsome crop prices, especially corn and soybeans, to reach record or near record levels in July with high prices continuing intoAugust. A little over 40 percent of the corn and soybean crop was considered poor or very poor by the USDA by the end ofAugust. The drought continued into September.Wayne County1 N Wayne 01 2155CST2159CST 0 0 Thunderstorm Wind (50MG)Thunderstorm wind gusts were measured at 58 mph by the Awos at Wayne. The winds downed a few tree limbs a few mileseast northeast of town.Thunderstorms formed along a surface trough during the evening of the 1st within a zone of moderate to strong instability. Thethunderstorms struggled to sustain themselves as they pressed east into a region lacking mid level moisture. Note: Themeasured wind gust of 50 knots is equivalent to 58 mph.Boone County1 E St Edward 07 1726CST 0 0 0.00K 0.00K Hail (1.00)Cass County1 N Cedar Creek 07 1824CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts estimated at around 60 mph were accompanied by dime-size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.267

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, EastCass County1 N Cedar Creek 07 1828CST 0 0 0.00K 0.00K Hail (0.75)The hail was accompanied by thunderstorm wind gusts which were estimated at around 60 mph.Sarpy County2 WSW Ft Crook 07 1848CST 0 0 Thunderstorm Wind (52EG)Thunderstorm wind gusts estimated at around 60 mph broke some tree limbs west of Offutt Afb. The winds were accompaniedby 1 inch hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sarpy County1 SE Ft Crook 07 1852CST 0 0 0.00K 0.00K Hail (1.00)The hail was accompanied by thunderstorm wind gusts estimated to have approached 60 mph.Dodge County4 S Dodge4 WNW WebsterThunderstorms, a few severe with large hail and damaging winds, developed during the late afternoon and evening along aweak cool front that stretched from east central Nebraska into southwest Iowa. Instability was modestly high as temperaturesnear the front climbed to around 100 degrees with dew point temperatures in the low to mid 60s. However, deep wind shearand convergence near the boundary was weak which limited the overall coverage of the storms and any associated severeweather.08 1536CST1545CST 1.88 20 0 0 0.00K 0.00K Tornado (EF0)A narrow high-based funnel cloud eventually touched down in between Dodge and North Bend. The tornado was very narrowand most likely caused little or no damage. The funnel and/or tornado were observed and photographed from many differentdirections and from miles away. The funnel initially formed on a developing towering cumulus cloud on a boundary in thearea.Johnson County3 S Cook 08 1540CST 0 0 0.00K 0.00K Hail (1.00)Hail up to 1 inch in diameter covered the ground near Cook.Cass County1 NW Greenwood 08 1550CST 0 0 Hail (1.75)Hail, up to golf ball-size, covered the ground White near Greenwood.Saunders County5 SE Morse Bluff 08 1614CST 0 0 0.00K 0.00K Hail (1.00)Hail up to 1 inch in diameter covered the ground white a little southeast of Morse Bluff.Sarpy County1 N Springfield 08 1650CST 0 0 Thunderstorm Wind (55EG)Thunderstorm wind gusts estimated at over 60 mph downed power lines near 132nd and Platteview Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Cass County1 SE Plattsmouth 08 1712CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Thunderstorm wind gusts of 60 mph were measured by the Awos at Plattsmouth.Note: The measured wind gust of 52 knots is equivalent to 60 mph.Sarpy County1 SSW Gilmore Jct 08 1728CST1738CST 0 0 0.00K Hail (2.00)268

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, EastHail up to 2 inches in diameter fell across parts of the Bellevue area. In some areas the hail covered the ground white andbriefly created locally hazardous driving conditions. Some of the larger hail stones were reported along Galvin Rd nearHighway 370 and Harvel Street. The hail was accompanied by thunderstorm winds that were measured at 59 mph at Offutt andwere estimated to have reached nearly 70 mph near Highway 370 and Galvin.Sarpy County(OFF)Offutt Afb1 ESE Gilmore JctDouglas County1 NNW Albright(OMA)Eppley Fld Omah08 1728CST1735CST 0 0 Thunderstorm Wind (51MG)Thunderstorm wind gusts were measured at 59 mph by the Asos at Offutt Afb. Other strong winds, estimated at 60 to 70 mph,were observed near Highway 370 and Galvin Rd. The winds were accompanied by hail that covered the ground and was aslarge as 2 inches in diameter.Note: The measured wind gust of 51 knots is equivalent to 59 mph.08 1750CST1800CST 0 0 0.00K Thunderstorm Wind (56MG)Thunderstorm winds caused scattered tree damage across the eastern parts of Omaha. A gust of 64 mph was recorded by Asosat Eppley Airfield at 7 pm CDT and limbs as large as 8 inches in diameter were downed near 43rd and Vinton Streets insoutheast Omaha between 650 and 7 pm. The strong winds caused a few power outages in town according to OPPD.Scattered thunderstorms, a few severe, developed on a weak boundary during the afternoon of August 8th. The boundaryextended nearly north to south from east of Norfolk to east of Lincoln and Beatrice its position aided by earlier convection thattracked across northeast Nebraska and western Iowa. Temperatures west of the boundary climbed to around 100 degrees withwest to northwest winds. Meanwhile, readings east of it were several degrees cooler with southeast winds. The storms werefurther strengthened by an upper level disturbance that tracked southeast out of South Dakota which pushed a cool front southacross the region. The storms developed along the north to south boundary in Nebraska and produced pockets of strong windsand hail, some of it large, as they pushed into far southeast Nebraska and southwest Iowa. Note: The measured wind gust of 56knots is equivalent to 64 mph.Washington County1 SE Blair 15 2214CST 0 0 0.00K 0.00K Hail (0.88)Douglas County2 SSE Bennington 15 2225CST 0 0 0.00K 0.00K Hail (0.75)Near 156th and Military.Douglas County2 WSW Mc Hugh 15 2242CST 0 0 0.00K 0.00K Hail (1.00)Quarter-size hail was reported near 72nd and Highway 36. The hail was accompanied by winds estimated at 40 to 50 mph.Sarpy County2 NE Springfield 15 2255CST 0 0 0.00K 0.00K Hail (1.00)Douglas County1 S Moorhead 15 2257CST 0 0 0.00K 0.00K Hail (0.88)Hail up to nickel-size was reported near 35th and Farnam Streets.Cass County1 SE Plattsmouth 15 2319CST 0 0 0.00K 0.00K Hail (1.00)Isolated severe thunderstorms developed on a cold front that pressed across eastern Nebraska and western Iowa during theevening of August 15th. The storms produced a few reports of large hail.269

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, Extreme NortheastNEZ013-014Dakota - Dixon01310000CST2359CST 0 0 DroughtDrought conditions continued over all of the area with below normal rainfall keeping soil conditions dry. Stress on cropscontinued even though August was less hot than July, with temperatures averaging only a little above normal. Crop damagewas quite evident, though the amount of reduced yields and other damage which might become evident at harvest wasuncertain. While reported water supply problems were not extreme, many local governments had water use restrictions in place.Drought was generally listed as severe to extreme for the area.01 1100CST1800CST 0 0 0.00K 0.00K Excessive HeatNEZ014Dakota01 1100CST1800CST 0 0 0.00K 0.00K Excessive HeatTemperatures reaching the 90s and high humidity with dew points in the 70s caused excessive heat during the afternoon ofAugust 1st.Dixon County5 W Wakefield 01 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)NEBRASKA, South CentralThunderstorm winds caused tree damage, including up to 6 inch diameter limbs broken.A thunderstorm produced damaging winds in southern Dixon County on the evening of August 1st. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Dawson CountyCozad 01 0000CST0600CST 0 0 0.00K 0.00K Heavy RainA 24 hour rainfall total of 3.07 inches was reported, most of which fell during the overnight hours.Primarily between midnight-5 AM CDT on this early Wednesday morning, a persistent round of thunderstorms streamed acrossmuch of Dawson County, but especially focused a few miles either side of the Interstate 80 corridor. Although none of thesestorms reached severe-criteria, hail up to nickel size was reported in Cozad, along with multiple waves of heavy rainfall. By thetime storms moved out of Dawson County before sunrise, most of the I-80 corridor through the county had measured at least 1-2 inches of rain, with the NWS cooperative observer in Cozad leading the way with 3.07. For Cozad, this event featured morerain than the past two months combined, and briefly helped ease the expanding extreme drought situation within the area.Although Dawson County experienced the strongest, most concentrated zone of thunderstorms within South Central Nebraska,most areas southwest of a line from Loup City to Hebron also experienced storm activity. This early morning episode ofelevated multicell convection was largely tied to a zone of mid level moisture convergence and thrived despite limited largescale forcing with Nebraska positioned along the northern periphery of an expansive mid-upper ridge centered over theSouthern Plains. Around the time of the nickel size hail in Cozad, the mesoscale environment featured around 1000 J/kg mixedlayerCAPE but only around 25 knots of 0-6 kilometer vertical wind shear.NEZ039>041-046>049-060>064-072>077-082>087Adams - Buffalo - Clay - Dawson - Fillmore - Franklin - Furnas - Gosper - Greeley - Hall - Hamilton -Harlan - Howard - Kearney - Merrick - Nance - Nuckolls - Phelps - Polk - Sherman - Thayer - Valley -Webster - York01310000CST2359CST 0 0 0.00K 0.00K Drought270

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, South CentralAlthough August rainfall deficits across the majority of the 24-county area were not as extreme as those in July, below normalrain was still the main story, plunging South Central Nebraska even deeper into the worst drought in several decades.According to weekly issuances of the U.S. Drought Monitor throughout the month, category D3 extreme drought remained inplace across most of the area and expanded farther east into all or part of York, Clay, Fillmore, Nuckolls and Thayer Counties.However, the worst conditions as indicated by category D4 exceptional drought continued to focus north of Interstate 80,gripping much of Valley, Greeley, Sherman and Howard Counties along with small slivers of Nance and Dawson Counties.The only limited part of the area to hold onto category D2 severe drought throughout the month included southern portions ofNuckolls and Thayer Counties. Focusing on August rainfall, the majority of South Central Nebraska tallied between 1.00 and2.25 inches, or generally between 25-60 percent of normal. On the drier side of things, a few of the lowest monthly amounts perNWS cooperative observers including 0.27 near Orleans, 0.44 at Cambridge and 0.52 near St. Paul. The monthly total of 0.94 atCentral Nebraska Regional Airport in Grand Island marked the 10th-driest August on record out of 117 years. In contrast, a fewof the most fortunate sites included Cozad (3.54), Osceola (2.71), Holdrege (2.44) and Hastings airport (2.39). Over the longertermperiod spanning June 1st-August 15th, rainfall in South Central Nebraska averaged only 10-30 percent of normal for mostplaces north of Interstate 80, and 40-70 percent of normal for most areas between I-80 and the Kansas border. Area riverscontinued to reflect significant drought impacts in August as well, including the Platte which remained essentially dry fromnear Grand Island downstream to Columbus. Following a notably hot June and especially July, there was some good newstemperature-wise during August as the mean monthly temperature across most of the area checked in within 1 degree ofnormal. The drought situation by late-summer reflected a sharp downward spiral since early June when the entire area was stillfree of all drought categories. Looking back a few months, although some areas near the Kansas border and also west ofHighway 281 started to dry out quite a bit in May, drought conditions really took hold during June and especially July as totalrainfall for these two months registered only 10-50 percent of normal across most of the area. Furthermore, average maximumtemperatures for the combined months of June and July registered at least 6-8 degrees above normal, essentially bakingmoisture-starved maturing crops. As of August 8th, the USDA had designated 22 of the 24 counties as primary counties in afederal drought disaster area. For the week ending August 12th, the Nebraska Weather and Crops Report from the USDAindicated that crop conditions continued to decline, with many corn fields being chopped for silage or baled for hay. Stateaveragedtopsoil and subsoil moisture continued to run 96 percent short to very short. Poor to very poor crop conditions werereported as 41 percent for corn, 46 percent for soybeans and 68 percent for alfalfa. Pasture and range conditions rated 92percent poor to very poor.Dawson CountyCozad 01 0145CST0150CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail occurred for five minutes.Primarily between midnight-5 AM CDT on this early Wednesday morning, a persistent round of thunderstorms streamed acrossmuch of Dawson County, but especially focused a few miles either side of the Interstate 80 corridor. Although none of thesestorms reached severe-criteria, hail up to nickel size was reported in Cozad, along with multiple waves of heavy rainfall. By thetime storms moved out of Dawson County before sunrise, most of the I-80 corridor through the county had measured at least 1-2 inches of rain, with the NWS cooperative observer in Cozad leading the way with 3.07. For Cozad, this event featured morerain than the past two months combined, and briefly helped ease the expanding extreme drought situation within the area.Although Dawson County experienced the strongest, most concentrated zone of thunderstorms within South Central Nebraska,most areas southwest of a line from Loup City to Hebron also experienced storm activity. This early morning episode ofelevated multicell convection was largely tied to a zone of mid level moisture convergence and thrived despite limited largescale forcing with Nebraska positioned along the northern periphery of an expansive mid-upper ridge centered over theSouthern Plains. Around the time of the nickel size hail in Cozad, the mesoscale environment featured around 1000 J/kg mixedlayerCAPE but only around 25 knots of 0-6 kilometer vertical wind shear.Sherman County2 ENE Hazard 01 2129CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)A three-story barn was destroyed, along with other nearby outbuildings. The time of damage is estimated from radar data.271

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, South CentralFor several hours on this Wednesday evening and early Thursday morning, a complex of strong to locally severe thunderstormsrolled from west-to-east across much of South Central Nebraska. Ground-truth severe weather reports were quite limited, withthe most noteworthy event occurring around 1030 PM CDT near Hazard in Sherman County where an old barn was destroyedby estimated 70 MPH winds and other nearby outbuilding were damaged. Other estimated or measured wind gusts included 50-55 MPH in Cozad and 53 MPH at the Lexington airport. The first storms to affect the area, including the one that caused theSherman County damage, spread into several western and northern counties out of the Sandhills region between 930 and 1130PM and primarily consisted of multicell clusters and line segments. Generally between 1130 PM and 230 AM, a smallmesoscale convective system (MCS) organized just north of the Nebraska-Kansas border and rolled east through mainlyHarlan, Franklin, Webster, Nuckolls and Thayer Counties. However, these storms yielded no reports of severe weather. On apositive note, this event resulted in the most widespread rainfall in several weeks across the drought-stricken area, with most ofthe 24 counties measuring between 0.25 and 1.50 inches, along with some locally higher amounts including 2.04 near Hildrethin Franklin County. On the large-scale aloft, this round of storms developed within modest quasi-zonal flow between thesouthern periphery of a shortwave trough crossing the Northern Plains states and a mid-upper ridge centered over northernTexas. At the surface, the initial afternoon and early evening storms that formed in western and north central Nebraskadeveloped near a slow-moving cold front and associated pre-frontal trough axis. With surface dewpoints averaging well into theupper 60s-low 70s F in South Central Nebraska, a rather unstable airmass was in place and mesoscale parameters around thetime of the Sherman County wind damage featured at least 2000-3000 J/kg most-unstable CAPE and 30-40 knots of 0-6kilometer wind shear. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Nance County8 W Belgrade 07 1545CST1600CST 0 0 0.00K 0.00K Hail (0.88)Greeley County3 E Wolbach 07 1620CST1650CST 0 0 25.00K 0.00K Hail (1.00)Hail up to the size of quarters started falling around 520 pm CDT and continued to fall until about 550 pm CDT. The groundwas completely covered with hail and visibility was poor as the hail fell.Greeley County1 E Wolbach 07 1641CST 0 0 25.00K 0.00K Hail (1.75)Greeley County3 NW Wolbach 07 1700CST1715CST 0 0 25.00K 0.00K Hail (1.75)Hail up to the size of golf balls fell, resulting in a shattered windshield 3 miles northwest of Wolbach.Howard County2 E Elba 07 1800CST1810CST 0 0 25.00K 0.00K Hail (1.75)Howard CountyElba 07 1800CST 0 0 0.00K 0.00K Hail (1.00)Between 430 PM and 730 PM CDT on this Tuesday, a slow-moving complex of severe thunderstorms with large hail poundeda localized area north of state Highway 92, primarily affecting western Nance, southeastern Greeley and northern HowardCounties. Despite this fairly limited areal coverage, there were numerous reports of hail ranging from nickel up to golf ball size,with most of these reports concentrated along a roughly 25-mile long corridor extending from west of Belgrade southwestthrough the Wolbach and Elba areas. Golf ball size hail reportedly shattered a windshield three miles northwest of Wolbach.Despite the slow-moving nature of these storms, the highest-known rainfall total within the affected area was only 1.34 inchesin Wolbach. The initial severe storm rapidly intensified across western Nance County between 430 and 5 PM CDT beforedrifting slowly west-southwest toward Wolbach and Elba during the ensuing few hours. At times, the dominant storm core tookon supercell characteristics as it merged with other storms developing in Greeley County. Finally between 7 and 730 PM CDT,the storm complex weakened over Howard County and soon dissipated, with no further thunderstorm development noted withinSouth Central Nebraska. On the synoptic scale aloft, this event was driven by transient shortwave energy passing throughnorthwest flow along the eastern periphery of an expansive mid-upper ridge centered over the Four Corners and IntermountainWest regions. Features at the surface were fairly subtle, with storm initiation likely sparked by mesoscale convergence along aweak trough axis. Mesoscale severe weather parameters at mid-afternoon included around 2000 J/kg mixed-layer CAPE but nomore than 30 knots of 0-6 kilometer deep layer wind shear.272

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEBRASKA, WestScotts Bluff County(BFF)Helig Fld Scots 06 1630MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)NEVADA, NorthThe wind sensor at the Scottsbluff Airport measured a peak gust of 62 mph.A late afternoon thunderstorm generated wind gusts over 60 mph at the Scottsbluff Airport. Note: The measured wind gust of54 knots is equivalent to 62 mph.Humboldt County12 SE Orovada 05 1436PST1437PST 0 0 0.00K Thunderstorm Wind (51MG)A thunderstorm produced a wind gust to 59 mph at the Morey Creek RAWS and downed trees in Paradise Valley. Note: Themeasured wind gust of 51 knots is equivalent to 59 mph.White Pine County15 E Glenn 10 1135PST1136PST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)A thunderstorm produced a wind gust to 59 mph at the North Spring Valley DRI mesonet site. Note: The measured wind gustof 51 knots is equivalent to 59 mph.Humboldt County10 N Rebel Creek 13 1215PST1217PST 0 0 50.00K 0.00K Thunderstorm Wind (78EG)White Pine CountyEly1 SW East ElyThunderstorm winds downed 16 power poles and the downed wires started a fire. The wind gust speed is estimated based onthe damage.Thunderstorm winds downed 16 power poles along U.S. highway 95 about 15 miles north of Orovada. The downed wires thenstarted a fire. Note: The estimated wind gust of 78 knots is equivalent to 90 mph.13 1344PST1415PST 0 0 0.50K 0.00K Flash FloodHeavy rainfall from a thunderstorm caused flash flooding in Ely. Law enforement reported water and debris running downseveral streets.Lander County2 NW Kingston Canyon 21 1600PST1700PST 0 0 1.00K 0.00K Flash FloodHeavy rain from thunderstorms resulted in a flash flood near Kingston with 4 to 6 inches of water reported flowing across statehighway 376 at milepost 27. No reports of damages were received so monetary value is an estimate.Heavy rain from thunderstorms caused flash flooding near Kingston. Four to six inches of water was reported flowing acrossstate highway 376 at milepost 27.Elko County7 WSW Arthur4 WSW Tobar31 1650PST1710PST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.Elko County2 S Melandco 31 1652PST1655PST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)Note: The measured wind gust of 56 knots is equivalent to 64 mph.Elko CountyPilot 31 1728PST1730PST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)Note: The measured wind gust of 55 knots is equivalent to 63 mph.273

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEVADA, NorthElko County1 SW Shanty Town 31 1730PST1732PST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)NEVADA, SouthThunderstorms across eastern Elko county produced wind gusts up to 64 mph. Note: The measured wind gust of 56 knots isequivalent to 64 mph.Clark County4 SSE (LAS)Mccarran/las Ve 01 0210PST 0 0 500.00K 0.00K LightningA lightning strike knocked out power to 1000 customers, and started a fire which destroyed a vacant office building at Easternand Wigwam.Isolated early morning thunderstorms rumbled over Henderson. One lightning strike caused damage.Nye CountyBeatty 03 1645PST1700PST 0 0 5.00K 0.00K Thunderstorm Wind (43EG)Thunderstorm winds blew down large tree limbs in and just south of Beatty.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Nye County1 N Beatty 03 1800PST1900PST 0 0 5.00K 0.00K Flash FloodNorth Avenue in Beatty was washed out at the west end, and covered with mud elsewhere.Nye County7 NNW Pahrump6 S Johnnie03 1800PST1900PST 0 0 5.00K 0.00K Flash FloodMud washed onto several roads in the Nevada Treasure RV Resort in Pahrump, and there were several inches of water and mudon Highway 160 just north of town.Nye County4 E Clay Camp 03 1900PST2000PST 0 0 1.00K 0.00K Flash FloodMud washed onto portions of Ash Meadows Road near Amargosa Valley.Monsoon moisture fueled another round of thunderstorms over the Mojave Desert. A few storms produced severe weather andflash flooding.NVZ020Las Vegas Valley08110000PST2359PST 3 0 0.00K 0.00K HeatThree people died of heat complications in Las Vegas during a particularly hot period. M51OU, M54OU, M52PSClark County6 N Las Vegas N Air Term 08 1348PST1353PST 0 0 1.00K 0.00K Dust DevilA dust devil hit a home near Grand Teton and Aliante Parkway, taking 20 to 30 tiles off the roof.A dust devil in North Las Vegas damaged a home.NVZ020Las Vegas Valley09 1400PST1600PST 0 0 0.00K 0.00K Excessive HeatExcessive Heat Warning criteria were reached in Las Vegas.274

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEVADA, SouthClark County1 NE Laughlin 09 1700PST1715PST 0 8 10.00K 0.00K Thunderstorm Wind (50EG)An eight by 12 foot window was blown out in the Riverside Casino, injuring eight people. Power was also knocked out toresidential neighborhoods on the north side of town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clark County2 SE East Las Vegas 09 1720PST1800PST 0 0 1.00K 0.00K Flash FloodSix inches of water along with rocks and debris flowed across the intersection of Tropicana and Stephanie.Lincoln County11 W Alamo 09 1910PST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)This gust was measured at Tikaboo Peak.Monsoon moisture began to return from the southeast, fueling strong thunderstorms over the eastern Mojave Desert. Severalstorms produced severe weather and/or flash flooding. Note: The measured wind gust of 51 knots is equivalent to 59 mph.NVZ020Las Vegas Valley14150000PST2359PST 2 0 0.00K 0.00K HeatTwo more people in the Las Vegas Valley died of heat complications at the end of a particularly hot period. F64OU, M37PSClark County4 SW Pittman 14 1458PST1530PST 0 0 2.00K 0.00K Flash FloodWater, rocks, and mud were on the roads near the intersection of Arroyo Grande and Horizon Ridge.Monsoon moisture fueled another round of thunderstorms over the Mojave Desert and southern Great Basin. Several stormsproduced severe weather and flash flooding.Lincoln County11 SW Elgin 17 1741PST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)This gust occurred at the Kane Springs RAWS.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Lincoln County1 S Caliente 17 1800PST2000PST 0 0 25.00K 0.00K Flash FloodFour to five feet of water flowed out of Clover Canyon into Clover Creek, closing Highway 317.Clark County3 SSW Las Vegas N Air Term 17 2311PST2359PST 0 0 1.00K 0.00K Flash FloodWater six to eight inches deep flowed through the intersection of Washington and Michael.Clark County1 SW Arden 18 1443PST1530PST 0 0 2.00K 0.00K Flash FloodThe following intersections had flowing water with mud and rocks: Rainbow and Landberg, Jo Rae and Jones, and SilveradoRanch and Decatur.Monsoon moisture fueled more thunderstorms across the Mojave Desert. A few storms produced severe weather and/or flashflooding.275

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEVADA, SouthClark County19 WNW Moapa 21 1704PST1830PST 0 0 10.00K 0.00K Flash FloodWater, rocks, and small bushes flowed across Highway 93 south of Coyote Springs, rendering the road impassable.Clark County2 NE Logandale 21 1800PST1810PST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds blew large rocks into a house and blew down a fence.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lincoln County5 NNE Crestline 21 2103PST2300PST 0 0 2.00K 0.00K Flash FloodWater one and a half feet deep flowed across Highway 319 near the Utah state line.Clark County1 S Overton Muni Arpt 22 0725PST0830PST 0 0 1.00K 0.00K Flash FloodHighway 169 was closed near Whitmore Street due to flash flooding.Clark County2 WSW Goodspgs 22 0845PST1000PST 0 0 5.00K 0.00K Flash FloodSeveral roads in Sandy Valley were flooded with water and debris.Esmeralda County8 WSW Lida 22 0900PST1600PST 0 0 50.00K 0.00K Flash FloodA four mile section of Highway 266 near Lida Summit was washed out.Clark County10 NW Las Vegas N Air Term1 S Dike Siding22 0945PST1500PST 1 0 5.00M 0.00K Flash FloodSignificant flash flooding affected much of the Las Vegas Valley. Numerous roads were closed, and several people wererescued from cars. A church was damaged by three feet of water when a retaining wall collapsed. Several people were rescuedfrom washes. One man died when he fell into the Pittman Wash and was swept downstream. M17OUClark County1 SSE Sloan 22 1032PST1130PST 0 0 1.00K 0.00K Flash FloodClark CountyCrystal5 WSW Valley Of FireUp to a foot of water ran down a road in Sloan.22 1119PST1500PST 0 0 200.00K 0.00K Flash FloodSignificant flash flooding affected much of Valley of Fire State Park. Mud and debris flowed over roads in at least ten places inthe park. White Dome Road was undercut and washed out. In addition, Exit 75 off Interstate 15 was washed out.276

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEVADA, SouthClark County7 WNW Callville Bay 22 1143PST1230PST 0 0 1.00K 0.00K Flash FloodSix to eight inches of water were running across Northshore Road near mile marker 7.Clark County1 E Boulder City Arpt2 E Boulder City22 1318PST1430PST 0 0 5.00K 0.00K Flash FloodMultiple streets in Boulder City were closed due to water and debris.Another surge of monsoon moisture led to an outbreak of thunderstorms over the Mojave Desert and southern Great Basin. Alow pressure system further enhanced the storms on the 22nd.Clark County2 SSW Red Rock Canyon 25 1330PST1530PST 0 0 10.00K 0.00K Flash FloodThe Red Rock Scenic Loop was flooded and closed. One vehicle was nearly swept away.Monsoon moisture fueled scattered thunderstorms over the Mojave Desert. Isolated flash flooding occurred.Clark County3 NW Blue Diamond 30 1140PST1230PST 0 0 1.00K 0.00K Flash FloodNEVADA, WestOne foot of water flowed over both Bonnie Springs Road and the Spring Mountain Ranch State Park access road just west ofHighway 159.Lingering monsoon moisture continued to fuel scattered thunderstorms over the Mojave Desert. Isolated severe weather andflash flooding occurred.Churchill County7 ESE Bango 09 1824PST1829PST 0 0 0.00K Thunderstorm Wind (67MG)A sensor west of Ragtown near highway 50 reported gusts to 77 mph.Note: The measured wind gust of 67 knots is equivalent to 77 mph.Churchill County1 N Fallon 09 1825PST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds caused a 4 to 5 foot diameter tree to fall on St. Clair Street in Fallon.Very hot (near record) temperatures helped isolated thunderstorms produce strong outflow winds in Churchill County duringthe evening of the 8th. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Douglas County6 SE Dresslerville 17 1400PST 0 0 10.00K 0.00K Debris FlowLarge rocks and mud covered highway 395 near the Ray May burn scar as heavy rain caused the hillside to give way. Thedebris flow/rock slide caused highway 395 to be closed as heavy equipment was required to remove the rocks from the road.Slow-moving thunderstorms caused heavy rainfall in the Pine Nut Range southeast of Gardnerville. The heavy rain fell on theRay May wildfire burn scar which produced a large debris flow over highway 395.277

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW HAMPSHIRE, North and CentralMerrimack County1 NE Franklin 05 1500EST1505EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires in Franklin.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Belknap County1 N Belmont 05 1510EST1514EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires in Belmont.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Belknap County1 N Meredith 05 1510EST1516EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires in Meredith.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Belknap County4 ENE Meredith 05 1520EST1525EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm flipped a canoe and moved it 5 feet near Meredith.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carroll CountyMoultonboro 05 1520EST1525EST 0 0 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree on a car in Moultonborough resulting in minor injuries to the occupants.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Carroll County1 NE Sandwich 05 1520EST1526EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires in Sandwich.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Carroll CountyTuftonboro 05 1540EST1544EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees and wires in Tuftonboro.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Rockingham County1 N Atkinson 05 1605EST1609EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a large limb on Maple Street in Atkinson.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Rockingham CountyPlaistow 05 1610EST1614EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a large branch on Old Road in Plaistow.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.278

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW HAMPSHIRE, North and CentralRockingham CountyExeter 05 1622EST1626EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a tree on Winter Street in Exeter.An approaching cold front spawned several lines of thunderstorm well ahead of the boundary during the afternoon of August5th. Increasing shear and dew points in the upper 60s to lower 70s provided plenty of fuel as these storms moved into NewHampshire during the late afternoon. Wind damage was the main feature associated with these storms. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.Strafford County1 SSW Milton 09 1443EST1447EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed a large tree and wires across McKeagney Road near Milton.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Grafton County2 WSW Sugar Hill 09 1718EST1723EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed three large trees across Pearl Lake Road between Lisbon and Sugar Hill.A stalled frontal boundary across northern New England was the focus for shower and thunderstorm activity during theafternoon and evening of August 9th. A few cells became severe, producing mainly wind damage. Note: The estimated windgust of 50 knots is equivalent to 58 mph.Belknap County1 N Meredith 12 1710EST1716EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm produced heavy wind and rain downing trees and power lines at the Meredith and New Hampton townline.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Belknap County3 SE Center Harbor 12 1712EST1716EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm produced estimated gusts of 60 mph, flipping over canoes on Black Cat Island.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carroll County1 N Ossipee 12 1740EST1744EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed several trees in Ossipee.A cold front moving through the region during the evening hours produced showers and thunderstorms in a moderatelyunstable airmass ahead of it. A few of these cells became severe producing some wind damage. Note: The estimated wind gustof 50 knots is equivalent to 58 mph.Merrimack County1 NE Concord 17 1916EST1922EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed trees on wires on Loudon Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Strafford CountyStrafford 17 1939EST1945EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm downed large limbs in Strafford.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.279

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW HAMPSHIRE, North and CentralStrafford CountyRochester 17 2000EST2005EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)NEW HAMPSHIRE, SouthernA severe thunderstorm damaged tents and a stage at the Rochester Music Festival.A cold front approaching from the west on the evening of the 17th was moving into a marginally unstable airmass in place overNew Hampshire and western Maine. Showers and thunderstorms formed during the late afternoon ahead of this boundary andpushed through southern New Hampshire and southwest Maine during the evening hours. A few of these cells became severeproducing wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hillsborough CountyWeare 04 1340EST1352EST 0 0 0.00K 0.00K Hail (0.88)Hillsborough CountyGoffstown 04 1535EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees on Patette Hill Road and Tibbets Hill Road in northern Goffstown were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hillsborough County1 ESE Grasmere 04 1614EST 0 0 170.00K 0.00K LightningLightning struck a baseball facility in Allard Park in Goffstown, setting it on fire and destroying a storage building. Equipmentfor 80 kids in the towns Babe Ruth League was destroyed. The fire also destroyed the field's water and electrical systems.Equipment loss was estimated at $10,000-$20,000, while the building and infrastructure losses were estimated between$100,000-$150,000.Hillsborough County2 S Long Hill 04 1715EST1815EST 0 0 15.00K 0.00K FloodMultiple cars were stuck in flood waters on Daniel Webster Highway near Silver Drive. Four to five inches of water floodedMain Street.A warm front moved north through southern New England producing scattered showers and thunderstorms across a very warm,humid environment.Cheshire CountyWinchester 05 1401EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)Cheshire CountySwanzeyHarrisvilleA tree on Jones Road was downed by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.05 1420EST1430EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A tree and wires on Flat Roof Mill Road in Swanzey were downed by thunderstorm winds. In Harrisville, a tree and wires onMason Road also were downed.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cheshire CountyRindge 05 1430EST 0 0 5.00K 0.00K LightningLightning struck a house on North Street causing an attic fire.Hillsborough CountyBennington 05 1440EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A tree and wires on Route 202 at Route 137 were downed by thunderstorm winds.280

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW HAMPSHIRE, SouthernA cold front approaching from the west provided enough lift for showers and thunderstorms. As this front was approaching theatmosphere was sufficiently unstable across western Massachusetts, southwestern New Hampshire and western Connecticut forstorms to become severe. Most damage was the result of strong to damaging winds. Note: The estimated wind gust of 50 knotsis equivalent to 58 mph.Cheshire County1 NW Hinsdale 11 1725EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A tree on Plain Road was downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cheshire CountyWinchester 11 1730EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A tree on Ashuelot Street near Route 119 was downed by thunderstorm winds.An approaching cold front provided enough lift for showers and thunderstorms to develop. A few of these storms becamesevere, producing damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hillsborough County1 SSW Massabesic 16 0315EST0415EST 0 0 20.00K 0.00K Flash FloodNEW JERSEY, NortheastTwo to three feet of water flooded Chestnut Street. Cars were stuck in flood waters at the intersections of Connecting Road andCandia Road and of Amherst and Beech Streets.After thunderstorms occurred during the early morning hours, clouds cleared allowing for ample sunshine. This resulted in theatmosphere destabilizing. A cold front moved through the region producing showers and thunderstorms. Some of these stormsbecame severe producing damaging winds. High rainfall rates in a moisture laden atmosphere resulted in flash flooding aswell.Passaic County1 N Erskine 05 1740EST 0 0 1.00K Thunderstorm Wind (52EG)Trees were reported down on Sloatsburg Road .Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Essex County(EWR)Newark Intl Arp 05 1827EST 0 0 Thunderstorm Wind (52MG)Winds gusted to 52 knots at Newark Airport.A passing cold front and upper level disturbance triggered isolated severe thunderstorms in Passaic and Essex counties. Note:The measured wind gust of 52 knots is equivalent to 60 mph.Passaic County2 SSW Haskell 15 1515EST 0 0 8000.00K LightningA residential property in Bloomingdale, NJ was struck by lightning during a severe thunderstorm, resulting in a fire. The localpolice and fire department responded and were able to extinguish the fire by 5 pm LST. No injuries were reported for both theproperty owners and the response team. Damage was reported on the second floor and the attic, with the house being deemeduninhabitable until repairs were made.Passaic County1 ENE Macopin 15 1515EST 0 0 1.00K Thunderstorm Wind (52EG)Multiple power lines were downed across Macopin, resulting in many power outages.Bergen County1 ENE Emerson1 ESE RidgewoodAn upper level disturbance and the triple point of a surface low pressure system passed through the Northeast during theafternoon, producing scattered strong to severe thunderstorms over Passaic County. Note: The estimated wind gust of 52 knotsis equivalent to 60 mph.15 1654EST1750EST 0 0 0.00K 0.00K Flash FloodIn Westwood, torrential rain flooded the basement of a medical center on Old Hook Rd. Ractrack Road was also closed due toflooding in HoHoKus.281

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, NortheastA low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of thunderstorms with torrential rain and flash flooding in Bergen County.NEW JERSEY, South and NorthwestCape May County1 NE Wildwood 01 1135EST 0 4 0.00K 0.00K LightningA family of 4 people suffered minor injuries from a lightning strike on the beach in Wildwood off of East Cedar Avenue. Theywere under a beach umbrella when lightning struck nearby and traveled up the umbrella. A man, two women (one pregnant)and one child were injured. All were hospitalized due to tingling in their hands and arms.Somerset County1 SW Millstone 01 1500EST1700EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours produced 2 to 5 inches of rain, which caused poor drainage and street flooding tooccur along Cain Drive.Hunterdon County1 ESE Sunnyside 01 1530EST1730EST 0 0 0.00K 0.00K Flash FloodFlash flooding from torrential downpours flooded Stanton-Grange Road in Lebanon and Stanton-Station Road in ReadingtonTownship. Doppler Radar storm total estimates were 2 to 4 inches.Somerset County1 SW Millstone 01 1531EST1731EST 0 0 0.00K 0.00K Flash FloodStreet flooding reported along Main Street and Yorktown Road in Millstone due to heavy rains of 2 to 4 inches.The combination of a weak cold front and a mid level disturbance, along with an increasingly hot and humid air mass, triggeredstrong to severe thunderstorms, which produced heavy rain and flooding in New Jersey. Doppler Radar storm total estimatesreached between 3 and 6 inches.Ocean CountyLakewood 03 1530EST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm dropped quarter size hail in Lakewood.Ocean CountyJackson 03 1605EST 0 0 0.00K 0.00K Hail (0.88)A thunderstorm dropped nickel size hail in Jackson Township.A lee side trof and a sea breeze helped trigger scattered strong to isolated severe thunderstorms across central New Jerseyduring the late afternoon and early evening of the 3rd.Camden County2 ESE Cherry Hill 04 1228EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a couple of trees and wires in Cherry Hill Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Burlington CountyMaple Shade 04 1230EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm also knocked down a couple of large tree limbs and wires in Maple Shade Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.282

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, South and NorthwestCamden CountyPennsauken 04 1230EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm also knocked down a couple of trees and wires in Pennsauken Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Burlington CountyCinnaminson 04 1235EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm also knocked down a couple of large tree limbs and wires in Cinnaminson Township.Scattered pulse type strong to severe thunderstorms affected mainly central New Jersey during the afternoon of the 4th. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Sussex County1 NNW Andover Arpt 05 1655EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees in Andover Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sussex CountyVernon 05 1715EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees, one onto wires in Vernon Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Middlesex CountyDunellen 05 1805EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Dunellen Borough.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Monmouth County1 S East Long Branch 05 1902EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Long Branch.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Burlington CountyColumbus 05 2110EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in Mansfield Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Burlington County1 WSW Chesterfield 05 2115EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in Chesterfield Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monmouth County1 WSW Englishtown 05 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Englishtown Borough.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Monmouth County3 ENE Atlantic Highlands 05 2200EST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)A severe thunderstorm produced a wind gust of 70 mph in Sandy Hook.Note: The measured wind gust of 61 knots is equivalent to 70 mph.283

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, South and NorthwestMonmouth CountySpring Lake 05 2215EST 0 0 5.00K 0.00K LightningA house was struck by lightning on Madison Avenue. No serious damage or injuries were reported.A series of strong to severe thunderstorms affected New Jersey during the late afternoon and evening of the 5th.Hunterdon CountyFlemington 09 1355EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A gust front ahead of a thunderstorm knocked down numerous trees in Flemington.Mercer County2 SE Harbourton2 W PenningtonThe combination of a weak cold front and upper air disturbance triggered scattered strong to severe thunderstorms, whichproduced damaging winds and areas of heavy rain across portions of central New Jersey during the afternoon and evening ofthe 9th. About 9,000 homes and businesses lost power, more than half in Middlesex County. As of 830 p.m. EDT on the 9th,there were still about 2,400 Public Service Electric and Gas customers without power. Note: The estimated wind gust of 52knots is equivalent to 60 mph.09 1606EST1745EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused poor drainage flash flooding on roadways in Hopewell Township. DopplerRadar storm total estimates were around 3 inches throughout most of the township.The combination of a weak cold front and upper air disturbance triggered a cluster of thunderstorms that tracked throughcentral New Jersey during the afternoon and evening of the 9th. Torrential downpours affected portions of Mercer andMiddlesex counties, producing areas of flash flooding.Mercer County(TTN)Trenton Arpt 09 1613EST 0 0 1.00K 0.00K Thunderstorm Wind (49MG)A thunderstorm produced a measured wind gust of 56 mph at the Trenton Mercer County Airport at 5:13 pm EDT. The strongwind gusts associated with this thunderstorm damaged a window in the Control Tower of the Mercer County Airport.Note: The measured wind gust of 49 knots is equivalent to 56 mph.Mercer County1 SW Agasote 09 1619EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Strong wind gusts from a severe thunderstorm knocked down trees in the city of Trenton. A tree and a pole were knockeddown on Cadwalader Drive. In addition, trees were also reported down across the train tracks in Trenton.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Middlesex County1 ENE Edison 09 1620EST 0 0 5.00K 0.00K LightningA lightning strike caused a brief shed fire on Markham Road in Edison.Mercer County1 NNW Princeton 09 1629EST 0 0 10.00K 0.00K LightningA lightning strike and ensuing fire damaged the attic of a home on Henderson Avenue in Princeton. The homeowner wasdisplaced from her home, but no injuries were reported.Mercer County1 NE Princeton 09 1630EST 0 0 5.00K 0.00K LightningA lightning strike and ensuing fire damaged an attic of a home under construction on Jefferson Road in Princeton.The combination of a weak cold front and upper air disturbance triggered scattered strong to severe thunderstorms, whichproduced damaging winds and areas of heavy rain across portions of central New Jersey during the afternoon and evening ofthe 9th. About 9,000 homes and businesses lost power, more than half in Middlesex County. As of 830 p.m. EDT on the 9th,there were still about 2,400 Public Service Electric and Gas customers without power.284

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, South and NorthwestMiddlesex CountyWoodbridge1 ENE Menlo Park Terrace09 1719EST1820EST 0 0 10.00K 0.00K Flash FloodThunderstorms with torrential downpours caused poor drainage flash flooding that resulted in several water rescues andstranded vehicles in Woodbridge. Three vehicles were trapped on Woodbridge Center Drive. Several other vehicles werecaught in flood waters on U.S. Route 9 under the New Jersey State Route 440 Bridge and also on Leesville Avenue. DopplerRadar storm total estimates were around 3 inches in the Woodbridge area.The combination of a weak cold front and upper air disturbance triggered a cluster of thunderstorms that tracked throughcentral New Jersey during the afternoon and evening of the 9th. Torrential downpours affected portions of Mercer andMiddlesex counties, producing areas of flash flooding.Cape May CountyOcean CitySea Isle City11 1445EST1745EST 0 0 0.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in Ocean City, Sea Isle City and Middle and Lower Townships.Widespread roadway flooding was reported, especially in Ocean City. The heavy rain coincided with the afternoon high tide.Event precipitation totals included 1.78 inches in Dennis Township and 1.70 inches in Middle Township.Atlantic County2 ESE Atlantic City1 NNE Ventnor CityAtlantic County3 SW Port Republic2 ENE Leeds Pt11 1500EST1800EST 0 0 5.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding on Absecon Island in both Atlantic City and Margate City.Numerous streets were flooded in Atlantic City and vehicles were getting stuck in the high water. In Margate, flooding spreadinto some buidlings. Doppler Radar storm total estimates reached 2.0 to 2.5 inches on the island. The Marina within AtlanticCity measured 1.60 inches of rain.A series of thunderstorms preceding an approaching cold front that coincided nearly exactly with the afternoon high tideproduced flash flooding along coastal sections of Atlantic and Cape May Counties. Doppler Radar storm total estimatesreached between 2.0 and 2.5 inches right along the immediate shore from Ocean City (Cape May County) northeast intoAtlantic City (Atlantic County).14 1505EST1700EST 0 0 10.00K 0.00K Flash FloodThunderstorms which back built over Galloway Township caused flash flooding during the late afternoon of the 14th. DopplerRadar storm total estimates reached 3 to 5 inches in the township. The Garden State Parkway was flooded in the township aswere numerous other smaller roadways including Kensington Drive. Vehicles were partially submerged and flood watersreached up to the entrances of homes.A line of showers and thunderstorms preceding an approaching low pressure from the Ohio Valley, produced some very heavyrain as it moved through central New Jersey during the afternoon of the 14th. Flash flooding occurred in Atlantic County withone storm.Monmouth CountyMiddletown 15 1355EST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm dropped quarter size hail in Middletown Township.Monmouth County1 SSW Atlantic Highlands 15 1410EST 0 0 0.00K 0.00K Hail (0.88)A thunderstorm dropped nickel size hail in Atlantic Highlands.Sussex CountySparta 15 1440EST 0 0 0.00K 0.00K Hail (1.25)A severe thunderstorm dropped quarter to half dollar size hail in Sparta Township and also caused wind damage within thetownship.285

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, South and NorthwestSussex CountySparta 15 1440EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees and wires in Sparta Township (it also dropped large hail). One downed treedamaged a vehicle. No injuries were reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Morris County1 SE Green Pond 15 1500EST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm dropped quarter size hail in Rockaway Township.Monmouth CountyWest End 15 1605EST 1 0 0.00K 0.00K LightningA 41-year-old male was struck and died the next day from a lightning strike while fishing with his 10-year-old son onTakanassee Lake Beach in Long Branch. His son was not injured. M41BOMonmouth County1 NE Clarksburg 15 1630EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees and wires in Millstone Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cumberland CountyVineland 15 1811EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Cape May County1 SW Wildwood May Co Arpt1 SE North Cape MayA severe thunderstorm knocked down a few trees within the city of Vineland.An approaching cold front helped trigger scattered strong to severe thunderstorms across New Jersey mainly during the secondhalf of the afternoon and the early part of the evening. One lightning related death occurred in Monmouth county. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.25 2030EST2130EST 0 0 50.00K 0.00K Flash FloodThunderstorms with torrential downpours caused flash flooding in western parts of Lower Township, North Cape May, CapeMay and West Cape May. Vehicles were stuck in flood waters in Cape May. Event precipitation totals included 5.05 inches inCape May.Cape May County1 NNW North Wildwood 25262340EST0140EST 0 0 50.00K 0.00K Flash FloodThunderstorms with torrential downpours caused additional flash flooding in lower Cape May County, in particular NorthWildwood and Wildwood Crest where streets were flooded. Some businesses in Wildwood were flooded. Event precipitationtotals included 4.46 inches in Wildwood Crest.Cape May County1 SW Stone Harbor1 SW Avalon26 0100EST0300EST 0 0 50.00K 0.00K Flash FloodThunderstorms with torrential downpours caused additional flash flooding in Avalon and Stone Harbor. In Avalon, one vehiclewas totally submerged in flood waters. No injuries were reported.A series of slow moving thunderstorms associated with a nearly stationary low pressure system in Eastern Virginia caused flashflooding in Cape May County during the evening and overnight on the 25th into the 26th. Doppler Radar storm total estimatesreached around 5 inches.Monmouth CountyBranchport 27 1200EST1300EST 0 0 0.00K 0.00K Flash Flood286

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW JERSEY, South and NorthwestFlash flooding submerged eight vehicles to their windows at city hall police headquarters in Long Branch. Doppler Radar stormtotal estimates were 2.0 to 2.5 inches, most of which fell within 45 minutes.Thunderstorms with heavy downpours caused flash flooding in Long Branch.Ocean CountyLake Riviera 27 1205EST 0 0 25.00K 0.00K Thunderstorm Wind (56EG)NEW MEXICO, Central and NorthA severe thunderstorm knocked down several large trees into homes in the Lake Riviera area of Brick Township. No injurieswere reported.A line of thunderstorms preceding an approaching cold front moved through central and northern New Jersey during the earlyafternoon on the 27th. One storm in that line was severe in northern Ocean County. Note: The estimated wind gust of 56 knotsis equivalent to 64 mph.NMZ501-505>506-508>509-518>540Albuquerque Metro Area - Central Highlands - Chaves County Plains - Chuska Mountains - CurryCounty - De Baca County - Eastern Lincoln County - Eastern San Miguel County - Estancia Valley - FarNortheast Highlands - Guadalupe County - Harding County - Lower Rio Grande Valley - NortheastHighlands - Northwest Plateau - Quay County - Raton Ridge/johnson Mesa - Roosevelt County - SanFrancisco River Valley - Sandia/manzano Mountains - Santa Fe Metro Area - South Central Highlands -South Central Mountains - Southwest Chaves County - Southwest Mountains - Union County - UpperTularosa Valley - West Central Mountains - West Central Plateau01 0000MST 0 0 0.00K 0.00K Drought31Drought conditions persisted across much of New Mexico through the month of August. Areas in portions of western and northcentral NM received spotty near, to above normal precipitation for the month, with continued below normal values recordedcentral and the eastern half of the state. Even though some areas received above normal precipitation for the month, the multimonth/multi-yeardeficit was too great for those areas to overcome.The areal coverage of severe (D2) drought remained about the same across most of the state. Some locations in north centralNew Mexico fell out of severe drought status but extreme (D3) drought conditions persisted over a significant portion of theeastern plains with some expansion in the areal coverage. Monetary damages will be estimated at the end of the event.Union County1 NE (CAO)Clayton Arpt 02 1545MST1557MST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Scattered thunderstorms to the west of Union County pushed eastward and became better organized as they moved closer toClayton. Outflow boundary winds gusted to near 60 mph along the leading edge of the rain-cooled air. Note: The measuredwind gust of 51 knots is equivalent to 59 mph.Mckinley CountyThoreau 05 1415MST1815MST 0 0 150.00K 0.00K Flash FloodFlooding was reported into Thoreau Baptist Church, Giant Gas Station, Thoreau Chapter House as well as multiple otherbusinesses and 6 homes. Several bridges and roads were also washed over with debris, including state roads 118, 371 and 612and county roads 61, 27, 51, and Castle Rock.A backdoor cold front pushed across the state from the northeast corner through the gaps of the central mountain chain andcontinued westward to the Arizona border. This front in combination with rich low level Gulf of Mexico moisture and midlevel monsoon moisture created a very unstable atmosphere. Precipitable water values were nearly 150% of normal acrossmuch of the state. Slow storm movement and repeated development of storms over the same general areas led to flash floodingin western New Mexico.NMZ519Albuquerque Metro Area06 0600MST1400MST 1 0 0.00K 0.00K HeatA toddler died after being left inside a parked vehicle for over eight hours. Ambient air temperatures were in the lower to mid90s. M2VE11 1938MST1949MST 0 0 0.00K 0.00K High WindA shower producing gusty winds and very little rainfall impacted to the Farmington airport late Saturday evening. A wind gustto 60 mph was recorded at the airport.287

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, Central and NorthSanta Fe County1 SSE Edgewood 12 1620MST1720MST 0 0 0.00K 0.00K Flash FloodSerious flooding in at least one home was reported on the western edge of Edgewood, approximately one miles south of Route66.A backdoor cold front nudged up against the central mountain chain and generated upslope flow that aided in the developmentof showers and thunderstorms throughout the afternoon and into evening and overnight hours. Activity initially began along theeastern slopes of the Sangre de Cristo Mountains and developed south and eastward as the day progressed. Heavy rainsaccompanied these storms with storm motions to the east and southeast.Taos County4 E Sunshine Valley 13 1621MST1622MST 0 0 0.00K 0.00K Hail (0.75)Santa Fe County4 NNW Lamy 13 1745MST1746MST 0 0 0.00K 0.00K Hail (1.00)Santa Fe County4 NNW Lamy 13 1754MST1755MST 0 0 0.00K 0.00K Hail (1.00)Low level east to southeast flow in wake of a backdoor cold front from the previous day increased moisture across the stateresulting in widespread showers and thunderstorms. The thunderstorms increased in areal coverage and intensity during theafternoon and evening hours, bringing locally heavy rainfall along with severe hail.Quay County1 ESE Jordan 15 1814MST1820MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Radar velocity values ranged from 46 to 52 knots at the time of the report and were coincident with the leading edge of thethunderstorm outflow.The center of an upper-level high pressure system shifted from eastern Arizona to western New Mexico. Lingering moistureand daytime heating resulted in scattered to numerous thunderstorms during the afternoon and evening. Multiple isolatedthunderstorms grew upscale into an organized line of storms that moved southeast across the eastern plains during the eveninghours. Outflow winds from this line of thunderstorms affected communities in Curry County, including Ragland. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.Sandoval CountySan Felipe Pueblo 16 1635MST1645MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Severe wind gusts were estimated up to 60 mph. Traffic flow was significantly impacted as visibilities were quickly reduced.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Santa Fe CountyMadrid 16 1635MST1645MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A slow-moving thunderstorm produced a major downpour and wind gusts estimated near 60 mph. Reduced visibilities inblowing dust were also observed.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Sandoval CountyDomingo 16 1700MST1900MST 0 0 0.00K 0.00K Flash FloodThe New Mexico Rail Runner suspended operations around 6pm as a southbound train was stranded near Pena Blanca due toflowing water over the tracks.288

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, Central and NorthSanta Fe CountyGolden 16 1709MST1710MST 0 0 0.00K 0.00K Hail (1.00)Santa Fe County6 N Edgewood 16 1736MST1740MST 0 0 0.00K 0.00K Hail (1.75)Golfball sized hail stones were observed.Santa Fe County6 N Edgewood 16 1736MST1745MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A seven inch diameter tree limb was knocked down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Santa Fe County5 N Edgewood 16 1835MST1935MST 0 0 0.00K 0.00K Flash FloodHwy 344 just north of Frost Rd was under 3-4 feet of fast-moving water. At least one vehicle was trapped that required localfire department assistance.Sandoval County1 N Sandia Pueblo 16 1920MST2020MST 0 0 0.00K 0.00K Flash FloodWater and debris significantly impacted State Road 313 near Sandia Wash.Sandoval County1 N Sandia Pueblo 16 1927MST2027MST 0 0 0.00K 0.00K Flash FloodFlash flooding was observed along State Road 313 where it crosses Sandia Wash.The upper-level high was positioned from northern Arizona southeast across west central New Mexico. A backdoor cold frontthat made its way into the state the previous night was the main focus of thunderstorm development. Additional low and midlevel monsoonal moisture further boosted instability and precipitable water values, which were already 100 to 125 percent ofnormal. Locally heavy rainfall was observed with radar estimated rainfall rates up to 5 inches per hour.Colfax CountyEagle Nest 17 1330MST1335MST 0 0 0.00K 0.00K Hail (0.88)Quay County3 W Logan 17 1943MST1953MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)A SchoolNet site recorded a 60 mph thunderstorm wind gust, which was relayed by TV media.Morning cloud cover delayed convection a few hours later than normal. However, a very moist air mass with precipitablewater values 130 to 140 percent of normal quickly destabilized by the afternoon hours.. Note: The measured wind gust of 52knots is equivalent to 60 mph.Lincoln County5 WSW Oscuro 18 1700MST1710MST 0 0 0.00K 0.00K Thunderstorm Wind (76MG)Severe wind gust clocked on the White Sands Missle Range at Phillips Hill.Note: The measured wind gust of 76 knots is equivalent to 87 mph.289

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, Central and NorthRio Arriba CountySanta Clara Pueblo 18 1950MST2050MST 0 0 0.00K 0.00K Flash FloodA nearly eight foot surge of water was reported near the intersection of Indian Roads 601 and 602 junction.A backdoor cold front dropped into northeast New Mexico, which resulted in scattered to numerous showers andthunderstorms across the east-central and southeast plains into the evening hours. Thunderstorms that developed during theafternoon over the higher terrain drifted southward into the eastern plains into the evening.Santa Fe County4 NW Edgewood 19 1138MST1140MST 0 0 0.00K 0.00K Funnel CloudA classic funnel cloud as seen from near the intersection of Frost Rd and Highway 344 several miles north of Edgewood.Funnel cloud in the Cedar Crest/Edgewood area. Multiple funnel clouds were photographed in in associationwith the storm. This photo was relayed via local broadcast media.Bernalillo CountySandia Park 19 1146MST1150MST 0 0 0.00K 0.00K Funnel CloudFunnel cloud near Sandia park. Multiple funnel clouds were reported in association with this storm.290

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, Central and NorthSan Miguel County1 ESE San Jose 19 1305MST 0 0 0.00K 0.00K Hail (0.88)Lincoln County1 ESE Alto 19 1315MST1320MST 0 0 0.00K 0.00K Hail (0.75)Mora County1 N Watrous 19 1434MST1440MST 0 0 0.00K 0.00K Hail (1.00)Torrance County12 NNW Encino 19 1445MST1450MST 0 0 0.00K 0.00K Funnel CloudVideo captured from the Vaughn NMDOT web camera showed a passing funnel cloud.Union County1 W Pasamonte 19 1454MST1500MST 0 0 0.00K 0.00K Hail (1.25)Mora County1 N Watrous 19 1534MST1540MST 0 0 0.00K 0.00K Hail (1.00)San Miguel County1 SE Las Vegas 19 1543MST1550MST 0 0 0.00K 0.00K Hail (1.00)Dry air moved into portions of far northeast New Mexico with another backdoor cold front into the Rio Grande Valley. Both ofthese features were the foci for shower and thunderstorm formation. With higher dew point temperatures and favorabledirectional shear, a few strong storms developed over the Northeast Highlands. The storms formed and moved to the southeastthrough the afternoon into the evening hours. Multiple funnel clouds were also reported in the Sandia Park and Cedar Crestareas during this event.Socorro County2 SSE Magdalena 20 1400MST1545MST 0 0 5.00K 0.00K Flash FloodSixty feet of forest service road 101 washed out and remained closed for over twelve hours. Culverts along road washed out aswell with estimates that water was four feet deep. Public works and local law enforcements ferried 40 people living in thecanyon that work in Magdalena with large four wheel drive vehicles after the water receded.A deep tap of low and mid level moisture combined with a weak upper level disturbance forced the development of localizedflash flooding and strong storms over many parts of northern and central NM.Lincoln County3 NNW Hollywood3 NE Ruidoso21 1520MST1620MST 0 0 0.00K 0.00K Flash FloodA swift water rescue was conducted near Gavilan Canyon.Lincoln County2 NNE Ruidoso Downs 21 1630MST1730MST 0 0 0.00K 0.00K Flash FloodThe Rio Ruidoso was reported to be out of its banks along U.S. Highway 70 at Fox Cave.Upper level high pressure was centered over New Mexico resulting in very light and erratic steering winds aloft. This coupledwith sufficient moisture helped aid in the development of slow-moving thunderstorms over and near the central mountain chainand western high terrain.291

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, Central and NorthRio Arriba County10 SW Chili 22 1930MST2030MST 0 0 0.00K 0.00K Flash FloodWater was reported flowing over Indian Service Roads 601 and 602.Sandoval County15 N Frijoles 22 1930MST2030MST 0 0 0.00K 0.00K Flash FloodWater was reported flowing over Indian Service Roads 601 and 602.An upper-level trough that tracked from California into southern Nevada helped to increase moisture along and west of theContinental Divide. Precipitatble water values steadily increased to over one inch. This subtle but significant monsoonmoisture surge resulted in widespread thunderstorm activity over much of central and northern New Mexico.Socorro County(ONM)Socorro Arpt 23 1320MST 0 0 0.00K 0.00K Funnel CloudA pilot report (PIREP) received with funnel cloud mentioned in remarks from KONM.Lincoln County8 W Oscuro 23 1401MST1410MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Observation from White Sands Missile Range at the Oscura Range Camp.Above normal precipitable water values along with lift from a weak disturbance aided in the development of showers andthunderstorms across western New Mexico. As the day progressed, numerous thunderstorms combined to form a long line oforganized thunderstorms with a general storm motion to the east northeast. The line of storms in central New Mexico wasresponsible for high outflow boundary winds. A funnel cloud was also reported in association with this line of storms.Considering the time of year and the very moist air mass, tropical funnel clouds were not unexpected. Note: The measuredwind gust of 50 knots is equivalent to 58 mph.Santa Fe County1 NNW Glorieta 26 1157MST1227MST 0 0 0.00K 0.00K Flash FloodHeavy rainfall caused a mud and boulders to slide onto Interstate 25 southbound between mile markers 298 and 299 nearGlorieta.Catron County1 W Mogollon 26 1330MST1400MST 0 0 0.00K 0.00K Flash FloodEight feet flow of water within Silver Creek washed debris over Highway 159 and surrounding bridges and yards.Isolated slow-moving thunderstorms across the Sangre de Cristo and Mogollon Mountains produced localized heavy rainfall.Flash flooding was reported along Interstate 25 near Glorieta and within the town of Mogollon along highway 159.NEW MEXICO, South Central and SouthwestNMZ401>410-412-414>417Central Tularosa Basin - East Slopes Sacramento Mountains Below 7500 Feet - Eastern Black RangeFoothills - Lowlands Of The Bootheel - Northern Dona Ana County - Otero Mesa - Sacramento MountainsAbove 7500 Feet - Sierra County Lakes - Southern Gila Foothills/mimbres Valley - Southern GilaHighlands/black Range - Southwest Desert/lower Gila River Valley - Southwest Desert/mimbres Basin -Uplands Of The Bootheel - Upper Gila River Valley - West Slopes Sacramento Mountains Below 7500 Feet01280000MST2359MST 0 0 0.00K 0.00K DroughtAfter a long period of time where much of Southwest New Mexico was in Extreme(D3) to Exceptional(D4) drought, manylocations fell into the Moderate(D1) to Severe(D2) drought during the month of August.292

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, South Central and SouthwestNMZ411-413Southern Dona Ana County/mesilla Valley - Southern Tularosa Basin14311300MST2359MST 0 0 0.00K 0.00K DroughtAfter being put into Moderate(D1) drought for a short time, South Central New Mexico was put into Severe(D2) drought.Grant County1 NW Buckhorn 16 1600MST1730MST 0 0 Heavy RainA local observer reported 1.20 inches of heavy rain from a nearly stationary thunderstorm. No flooding was observed but waterwas running rapidly downhill.A moist southerly flow met with an approaching back door cold front from the northeast and generated scattered slow movingthunderstorms that produced locally heavy rainfall.Grant County1 NW CentralHanover Jct18 1600MST1630MST 0 0 0.00K 0.00K Flash FloodDispatch reported water coming over railroad road in Santa Clara at the low water crossing. Nearby COCORAHS sites reportedbetween .50 inches and 1.00 inches of rainfall during the event.Monsoon moisture continued to stream into the region courtesy of south and southwesterly low level winds. A combination ofdaytime heating that led to a generally unstable atmosphere and lift provided by the terrain of the Gila region led to thedevelopment of widespread showers and thunderstorms.Dona Ana County47 NE Grama 23 1600MST1700MST 0 0 Thunderstorm Wind (66MG)White Sands Missile Range reported strong thunderstorm winds and .87 inches of heavy rain at one of its SAMS sites as asevere thunderstorm moved through.Note: The measured wind gust of 66 knots is equivalent to 76 mph.Otero County1 SSW Cloudcroft 23 1730MST1830MST 0 0 0.00K 0.00K Heavy RainThe local COOP observer for Cloudcroft reported 1.17 inches of heavy rain. The local emergency manager also reported heavyrain and some minor street flood occurring across western and southern parts of Cloudcroft.A very moist air mass remained in place across the region as a result of the seasonal monsoon flow. An upper level disturbancemoved in from the northwest and managed to destabilize the atmosphere and resulted in numerous strong to severethunderstorms.Luna County5 S (DMN)Deming Arpt 26 1740MST1755MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)A local storm spotter measured a 60 mph thunderstorm wind gust and reported brief heavy rainfall from a severe thunderstorm.Earlier Luna County Dispatch reported a tree down in nearby Deming as a result of a lightning strike.An upper level trough moved through the region during the day and interacted with low level monsoon moisture to generateshowers and thunderstorms. Additional strong thunderstorms developed across Luna county along an outflow boundary andmanaged to become severe. Note: The measured wind gust of 52 knots is equivalent to 60 mph.293

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW MEXICO, SoutheastEddy CountyArtesia 12 2115MST2116MST 0 0 0.50K 0.00K Thunderstorm Wind (53MG)A thunderstorm moved over Eddy County and produced a 61 mph wind gust at Artesia as measured by the Artesia RAWS.This wind gust is thought to be the result of a dry microburst since a lot of blowing dust with little to no rain was reported.There was some tree limb damage across the town. The cost of damage is a very rough estimate.An upper level ridge was centered over New Mexico with an upper level trough over the northern plains, and a cold frontassociated with this trough was moving into Southeast New Mexico and the northern Permian Basin. Fairly dry air was at thesurface with moist conditions at the middle levels of the atmosphere. This moisture contrast along with intense surface heatingcontributed to thunderstorms with strong to severe wind gusts. Note: The measured wind gust of 53 knots is equivalent to 61mph.Eddy County2 NE Carlsbad 26 1409MST1410MST 0 0 Thunderstorm Wind (61EG)A thunderstorm developed over Eddy County and produced a 70 mph wind gust two miles northeast of Carlsbad.A region of lift was over the area as a result of an upper level trough located over the southern plains. Moisture in all levels ofthe atmosphere was good, and there was decent surface heating to create instability needed for thunderstorms. Note: Theestimated wind gust of 61 knots is equivalent to 70 mph.NEW YORK, CentralDelaware County1 SE Sidney Muni Arpt2 S Sidney05 1704EST 0 0 7.00K 0.00K Thunderstorm Wind (74EG)A path of straight line wind damage began west of Route 8 on Thrope Road as three large trees were uprooted. The damagepath continued across Thrope Road through an area of woods just west of Route 8. The uprooted trees in this area were blownfrom the south, southwest, and westerly directions or consistent with a divergent pattern. No damage could be found to either ahouse or a mobile home at this location, so the top wind speeds were estimated to be around 75 mph.The damage path continued northeast across Route 8 and toward/along County Route 4. It was here the most significant windsoccurred. A large swath of trees was blown down along and north of County Route 4, just east of Route 8. In addition tonumerous uprooted trees, mainly softwood trees were snapped. Just across the street from this damage was a house that hadroof shingle loss at around 15 percent. Winds in this damage area were estimated at around 85 mph.The damage continued but became more isolated as the path continued northeast. Most of the property damage in this area waslimited to trees falling on a house, with most of the damage occurring to trees. The winds in this area were estimated at 75 mph.Showers and thunderstorms developed in a moderately unstable air mass ahead of a surface cold front. Most of thethunderstorms were just generic, as warm air at the mid levels seemed to inhibit storms from becoming severe. The oneexception was one storm in Delaware county that produced straight line wind damage, with eyewitness reports of a funnelcloud. Note: The estimated wind gust of 74 knots is equivalent to 85 mph.Oneida CountyWestmoreland 09 1443EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree fell on a house on East Main Street.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chenango CountyNorwich 09 1555EST 0 0 0.00K 0.00K Hail (0.88)Otsego CountyEdmeston 09 1608EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A few trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.294

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, CentralOtsego CountyCherry Vly 09 1650EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A few trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Otsego County1 W Cooperstown 09 1700EST 0 0 0.00K 0.00K Hail (1.00)Otsego County1 NW Milford 09 1725EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A few trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Steuben CountyPrattsburg 09 2020EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on wires.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Yates CountyBluff Pt 09 2033EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees and wires were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Yates County1 W Dundee 09 2037EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A tree was blown down on a house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Yates County1 W Dundee 09 2105EST 0 0 0.00K 0.00K Hail (0.88)Tompkins County1 S Ithaca 09 2135EST 0 0 0.00K 0.00K Hail (0.75)Cayuga County1 S Moravia 09 2139EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees and wires were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Onondaga County1 N Stanley Manor 09 2212EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Several trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cortland County1 N Homer 09 2215EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down.Showers and thunderstorms developed in an increasingly unstable environment ahead of a weak disturbance that moved intocentral New York during the afternoon. Several of these thunderstorms reached severe levels, producing damaging wind gustsand large hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cortland County2 SSW Solon 14 1905EST1925EST 0 0 2.00K 0.00K Thunderstorm Wind (62EG)295

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, CentralStraight line wind damage began at 8:05 pm about a mile east of Virgil, and headed into Tuller Hill State Forest. Occasionaltree branches of generally 6 to 12 inches in diameter were broken off of some hardwood oaks and maples. They were generallyblown in a northeast direction on the north side of the path and in a southeast direction on the south side of the path...consistentwith a diverging pattern and straight line winds. The path of occasional snapped branches, some a foot or more in diameter,continued from Pipeline and Snyder Hill Roads, across the Tioghnioga River. It then crossed Route 11 and Interstate 81. Thisincludes a large fallen branch that blocked Route 11. Up to this point, peak wind gusts are estimated to have reached 70 to 80mph.Tree damage was much more sporadic and minor as the winds progressed east of Interstate 81, through the northern portion ofHoxie Gorge State Forest, with lesser winds of around 60 mph. However, by around 8:25 pm, winds then accelerated downhillacross an open field 2 miles south-southwest of Solon. A small, old wooden power pole was blown down along Stramba Road,where winds in this exposed area are estimated to have reached 75 to 80 mph.Note: The estimated wind gust of 62 knots is equivalent to 71 mph.Broome County1 E West Endicott 14 2136EST2336EST 0 0 0.00K 0.00K FloodHeavy rain caused flooding along Route 26.Showers and thunderstorms increased across central New York during the afternoon of the 14th, as partly sunny skies broughtincreased instability to the area ahead of a low pressure system tracking from the Ohio Valley into western New York. Onlyisolated storms produced localized wind damage, with heavy downpours also causing some minor flooding.NEW YORK, CoastalQueens County1 NNE Woodhaven1 N Richmond Hill01 1125EST1245EST 0 0 0.00K 0.00K Flash FloodThe Grand Central Pkwy eastbound was closed at the Kew Gardens Interchange due to flooding.Queens CountyRichmond Hill1 ESE Bayside01 1135EST1245EST 0 0 0.00K 0.00K Flash FloodThe Long Island Expressway at Francis Lewis Blvd. and the Van Wyck Expressway southbound at Hillside Ave. were bothclosed due to flooding.The combination of an upper level short wave and a surface trough triggered scattered showers and thunderstorms across thearea. Some thunderstorms produced very heavy rainfall that resulted in localized flash flooding in Queens.Queens County1 NW Bayside 05 1857EST 0 0 2.00K Thunderstorm Wind (52EG)Trees were reported down on 45th Avenue.A passing cold front and upper level disturbance triggered an isolated severe thunderstorm in Queens. Note: The estimatedwind gust of 52 knots is equivalent to 60 mph.Putnam County1 S Carmel 09 1620EST 0 0 Hail (0.75)Putnam CountyMahopac Falls 09 1650EST 0 0 1.00K Thunderstorm Wind (52EG)A tree was reported down across Secor Road.A stationary front produced an isolated severe thunderstorm over Putnam County. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Nassau CountyEast Meadow 10 1202EST 0 0 5.00K Thunderstorm Wind (61EG)Numerous trees were reported down throughout East Meadow.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.296

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, CoastalNassau County1 NW Carle Place 10 1208EST 0 0 7.50K Thunderstorm Wind (61EG)Numerous trees and wires were reported down in Westbury. Some trees fell on fences.A passing warm front and upper level short wave triggered severe thunderstorms over Long Island, including one that produceda tornado in South Central Suffolk County. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Suffolk CountyBabylon 10 1255EST1315EST 0 0 0.00K 0.00K Flash FloodIn Babylon, torrential rain caused flooding up to car door windows. Park Ave. was flooded most of it's length and theintersection of E. Main St. and Cooper St. was under approximately one foot of water.A passing warm front and upper level short wave triggered scattered showers and thunderstorms over Long Island. A tropicalair mass in place across the region resulted in torrential downpours and flash flooding in Suffolk County.Suffolk County1 W Great River1 WSW (ISP)Mc Arthur Fld I10 1306EST1314EST 5.57 150 0 0 100.00KTornado (EF0)The National Weather Service conducted a storm survey in south central Suffolk County, New York. Based on this survey, thetornado touched down on Widgeon Court in Great River, and tracked north-northeast to where it lifted near the intersection ofOcean Avenue and Gary Way Road in Ronkonkoma.The track went through Oakdale, Connequot River State Park, Bohemia County Park, and Bohemia in between touch down andlifting. The most significant damage occurred between 8th Street and Feuereisen Avenue in Bohemia around 2:11 PM EDT.Multiple trees were uprooted and thrown onto power lines. Several homes were damaged due to fallen trees in Oakdale andBohemia. There were several eyewitness reports of the tornado moving north-northeast near the east bank of the ConnequotRiver and in Bohemia as well.A passing warm front and upper level short wave triggered severe thunderstorms over Long Island, including one that produceda tornado in South Central Suffolk County.Suffolk County1 NNE Brentwood1 E Middleville10 1309EST1345EST 0 0 0.00K 0.00K Flash FloodSeveral roads were closed due to flooding in the towns of Lake Grove, Hauppauge, Lake Ronkonkoma and Kings Park.A passing warm front and upper level short wave triggered scattered showers and thunderstorms over Long Island. A tropicalair mass in place across the region resulted in torrential downpours and flash flooding in Suffolk County.Suffolk County1 NNW (ISP)Mc Arthur Fld I 10 1315EST 0 0 1.00K Thunderstorm Wind (52EG)A tree was reported to be snapped in half between Lakewood and St. Josephs Avenues in Lake Ronkonkoma.A passing warm front and upper level short wave triggered severe thunderstorms over Long Island, including one that produceda tornado in South Central Suffolk County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Suffolk County1 SW Wading River 10 1400EST1445EST 0 0 0.00K 0.00K Flash FloodIn Ridge, Wading River Manor Rd. at Long Pond Rd. was closed due to flooding.A passing warm front and upper level short wave triggered scattered showers and thunderstorms over Long Island. A tropicalair mass in place across the region resulted in torrential downpours and flash flooding in Suffolk County.297

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, CoastalWestchester CountyCroton Falls 15 0328EST 0 0 1.00K Thunderstorm Wind (52EG)Several trees were reported down on the Metro North Railroad tracks in Croton Falls.A surface trough that extended through the region produced an isolated severe thunderstorm that produced wind damage. Note:The estimated wind gust of 52 knots is equivalent to 60 mph.Nassau County1 E East Williston 15 1028EST 0 0 Hail (0.88)Nassau County1 E Hillside Manor 15 1037EST 0 0 Hail (0.88)Nassau County1 NNE East Williston 15 1040EST 0 0 2.00K Thunderstorm Wind (61EG)Numerous large tree limbs and power lines were reported down near East Williston, which led to numerous power outages.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of strong to severe thunderstorms over the Lower Hudson Valley, New York City and Long Island.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Nassau CountyHillside Manor 15 1052EST1140EST 0 0 0.00K 0.00K Flash FloodIn Carle Place, the intersections of Westbury Ave. and Glen Cove Rd. and Cherry Ln. and Atlantic Ave. were flooded andimpassable.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of thunderstorms with torrential rain and flash flooding in Queens, Nassau and Suffolk Counties.Nassau County1 N Plainview 15 1110EST 0 0 Hail (0.88)Suffolk County1 SSW Melville 15 1121EST 0 0 Thunderstorm Wind (52EG)Estimated wind gust of 60 mph.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of strong to severe thunderstorms over the Lower Hudson Valley, New York City and Long Island.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Nassau CountyMineola 15 1125EST1140EST 0 0 0.00K 0.00K Flash FloodIn Mineola, nine feet of water accumulated under the railroad tressel near Elm Pl. and Jericho Turnpike.Suffolk County1 SW Islip Terrace 15 1215EST1300EST 0 0 0.00K 0.00K Flash FloodIn Islip, the intersection of West Pine St. and Rt. 111 was impassable due to flooding.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of thunderstorms with torrential rain and flash flooding in Queens, Nassau and Suffolk Counties.Queens County2 NW Woodhaven 15 1229EST 0 0 2.00K Thunderstorm Wind (56EG)Multiple power lines were downed across Middle Village that created numerous power outages.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.298

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, CoastalQueens CountyRosedale 15 1252EST 0 0 1.00K Thunderstorm Wind (52EG)Multiple power lines were downed across Rosedale, which led to numerous power outages.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of strong to severe thunderstorms over the Lower Hudson Valley, New York City and Long Island.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Queens County1 E Woodhaven 15 1305EST1400EST 0 0 0.00K 0.00K Flash FloodIn Richmond Hill, the intersection of 86th Ave. and 110th St. was impassable due to two ft. of standing water.Queens County1 NNW Richmond Hill2 WSW Springfield Gardens15 1330EST1400EST 0 0 0.00K 0.00K Flash FloodAll lanes were blocked with several disabled vehicles due to flooding on the eastbound Grand Central Pkwy. at the KewGardens Interchange. All lanes were also blocked due to flooding on the northbound Van Wyck Expressway between JFKFederal Circle and the Grand Central Pkwy.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of thunderstorms with torrential rain and flash flooding in Queens, Nassau and Suffolk Counties.Queens County1 NE Fresh Pond 15 1450EST 0 0 Hail (1.50)Queens County1 NNE Long Is City 15 1458EST 0 0 Hail (1.00)Queens County2 NW Woodhaven 15 1505EST 0 0 Hail (0.88)Kings County3 NW Brooklyn 15 1505EST 0 0 1.00K Thunderstorm Wind (52EG)A large tree branch was downed on a car and across Clinton Ave. near the intersection of Clinton and Greene Avenues.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of strong to severe thunderstorms over the Lower Hudson Valley, New York City and Long Island.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Queens County1 NNW Richmond Hill 15 1530EST1610EST 0 0 0.00K 0.00K Flash FloodThe westbound Grand Central Pkwy. was closed at the Van Wyck Expy. due to flooding.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of thunderstorms with torrential rain and flash flooding in Queens, Nassau and Suffolk Counties.Rockland County1 W New City 15 1600EST 0 0 1.00K Thunderstorm Wind (56EG)Numerous trees were downed on wires around New City.A low pressure system and upper level disturbance moved through the Northeast during the morning and afternoon hours,producing multiple rounds of strong to severe thunderstorms over the Lower Hudson Valley, New York City and Long Island.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.299

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, EastSchenectady CountySchenectady 01 1350EST 0 0 Thunderstorm Wind (50EG)Trees and wires were reported down due to thunderstorm winds on McClellan and Bradley streets in Schenectady. Newspapermedia also reported that the downed trees forced police to shut down a portion of McClellan Street for cleanup.A weak cold front was crossing through the region during the afternoon hours of August 1st. With a warm and unstable airmass in place, scattered thunderstorms developed. One thunderstorm briefly became severe, producing damage to trees andpower lines in the city of Schenectady. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dutchess CountyHyde Park 05 1745EST 0 0 Thunderstorm Wind (50EG)One tree was reported down due to thunderstorm winds in Hyde Park.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dutchess CountyGlenham 05 1800EST 0 0 Thunderstorm Wind (50EG)Trees were reported down due to thunderstorm winds in Glenham.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dutchess County1 NNE Pine Plains 05 1811EST 0 0 Thunderstorm Wind (50EG)One tree was reported down due to thunderstorm winds in Pine Plains.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dutchess County2 NW Freedom Plains 05 1815EST 0 0 Thunderstorm Wind (50EG)A tree was reported down due to thunderstorm winds in the town of La Grange.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dutchess County1 E Amenia 05 1830EST 0 0 Thunderstorm Wind (50EG)Trees were reported down due to thunderstorm winds in Amenia.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga CountyPalmer 05 1850EST 0 0 Thunderstorm Wind (50EG)A tree was reported down and on top of a parked car due to thunderstorm winds in Corinth.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga County2 ESE Factory Vlg 05 1857EST 0 0 Thunderstorm Wind (50EG)One tree was reported down due to thunderstorm winds 1 mile east-northeast of Greenfield.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga County1 SSW Gurn Spg 05 1902EST 0 0 Thunderstorm Wind (50EG)One tree was reported down due to thunderstorm winds 1 mile south-southwest of Travers Corners.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.300

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, EastWashington CountyFt Edward 05 1912EST 0 0 Thunderstorm Wind (50EG)Trees were reported down due to thunderstorm winds in Fort Edward.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga County1 SSW South Glens Falls 05 1917EST 0 0 Thunderstorm Wind (50EG)One tree was reported down due to thunderstorm winds in South Glens Falls.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga County1 SW Gansevoort 05 1917EST 0 0 Thunderstorm Wind (50EG)Trees were reported down on Gurn Street Road in Gansevoort due to thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Saratoga County1 ENE Reynolds Corners 05 1920EST 0 0 Thunderstorm Wind (50EG)Trees were reported down due to thunderstorm winds along Route 197 in Reynolds Corners.A warm and very muggy air mass was in place ahead of an approaching cold front. Although the best upper level dynamicswere displaced north of the region into Canada, strong winds aloft (wind shear) moved into the area during the afternoon andevening hours. Despite marginal amounts of instability, the strong wind shear in place allowed some of the thunderstorms toorganize into lines. A few of the thunderstorms along these lines became severe, producing damaging wind gusts.Thundertorms moved east of the region and weakened by the late evening hours, as the cold front moved across the area. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Fulton County1 E Broadalbin 09 1450EST1453EST 0 0 Hail (0.88)Nickel size hail was reported during a thunderstorm in Broadalbin.Fulton County1 SW Hill Corners 09 1450EST 0 0 Hail (0.88)Nickel size hail was reported during a thunderstorm in Perth.Fulton County1 SW Hill Corners 09 1455EST 0 0 Thunderstorm Wind (50EG)Trees were reported down due to thunderstorm winds in Perth.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Fulton CountyMayfield 09 1526EST 0 0 Thunderstorm Wind (50EG)A tree was reported down and on a house due to thunderstorm winds in Mayfield.A nearly stationary frontal boundary was located just northwest of the region along the U.S./Canadian border. Very moist areawas in place across much of Upstate New York with dewpoints approaching 70 degrees F. As the frontal boundary slowlydrifted southeast, thunderstorms developed during the afternoon hours. A few of these thunderstorms became severe,producing damaging wind gusts. A few storms also produced small sub-severe hail as well. The thunderstorm activitylessened by evening due to the loss of daytime heating. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia County3 NNW Niverville 11 1035EST 0 0 Thunderstorm Wind (50EG)Trees and wires were reported down on Route 9 between County Route 28 and County Route 32 in the town of Kinderhook dueto thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.301

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, EastColumbia County2 WNW Green River 11 1125EST 0 0 Thunderstorm Wind (50EG)Two trees were reported down on Mallory Road, near the intersection with Punsit Road, in the town of Austerlitz.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia County1 NNE Ghent 11 1156EST 0 0 Thunderstorm Wind (50EG)Several trees were reported down to thunderstorm winds in Ghent.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Fulton County1 ESE Caroga Lake 11 1245EST 0 0 Thunderstorm Wind (50EG)Two trees were reported down on County Road 11 and an additional two trees were reported down nearby on County Road 112due to thunderstorm winds in Caroga Lake.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia County2 WSW Stottville 11 1311EST1511EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported on State Route 9 near Hickory Lane in the town of Greenport due to heavy rain from repeatedthunderstorms.Columbia County2 WSW New Concord 11 1330EST 0 0 Thunderstorm Wind (50EG)A tree was down and on a power line on State Route 295 near Hartigan Road in the town of Chatham.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia CountyAusterlitz 11 1448EST 0 0 Thunderstorm Wind (50EG)Trees and wires were reported down due to thunderstorm winds in Austerlitz.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbia CountyWestghent 11 1520EST1720EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported on Stockport Road off State Route 9H in the town of Ghent due to heavy rainfall from repeatedthunderstorms.Columbia CountyBrick Tavern 11 1555EST1845EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported on State Route 9H, 1/4 mile south of State Route 66, due to heavy rainfall from repeatedthunderstorms.Warren County1 ESE Lake George 11 1910EST 0 0 Thunderstorm Wind (50EG)Trees limbs were reported down and on power lines in the Village of Lake George.Ample low level moisture was in place across the region ahead of a slow moving frontal boundary. Although skies werecloudy to start the day, breaks in the clouds towards the noon hour allowed for some instability to develop. With the largeamount of moisture in place and an unstable atmosphere, slow moving thunderstorms formed. Some of these thunderstormscontained gusty winds, which caused damage to trees and power lines.As thunderstorms with heavy rainfall moved over the same areas repeatedly, flash flooding occurred across portions ofColumbia County. Some areas received over four inches of rain, with the highest amount being 4.95 inches in Chatham.302

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, EastNEW YORK, NorthThunderstorm activity waned by evening due to the frontal boundary crossing the region. Note: The estimated wind gust of 50knots is equivalent to 58 mph.St. Lawrence CountyFine 05 1606EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Numerous trees and utility wires down by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin CountyLake Clear Jct 05 1710EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees and power lines down along Route 30 due to thunderstorm winds.A weak cold front and upper level disturbance moved through a marginally unstable air mass that ignited scatteredthunderstorms during the afternoon hours of August 5th in New york. One or two of these produced isolated wind damage inportions of St. Lawrence and Franklin counties. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Essex County2 NW Schroon Lake Arpt 09 1330EST 0 0 0.00K 0.00K Hail (0.75)Penny size hail reported.Essex County2 NW Severance 09 1330EST 0 0 0.00K 0.00K Hail (0.75)Penny size hail reported.Essex County2 NW Schroon Lake Arpt 09 1330EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Numerous large limbs and branches down throughout campground.Essex County5 WSW Ray Brook5 WSW Upper JayNote: The estimated wind gust of 50 knots is equivalent to 58 mph.09 1800EST2000EST 0 0 20.00K 0.00K Heavy RainHeavy rain fell over Lake Placid Village the afternoon of August 9 2012. Runoff quickly overwhelmed storm drains, andresulted in some basement flooding according to local media reports.Essex CountyStreet Rd 09 1949EST2100EST 0 0 10.00K 0.00K Flash FloodThunderstorms with heavy rainfall produced flash flooding and high water north of Ticonderoga at the intersection ofCharboneau and Delano Roads.A stationary front draped across northern New York along with weak impulses aloft developed scattered thunderstorms acrossportions of northern New York during the afternoon of August 9th. An isolated thunderstorm produced penny size hail and avery localized damaging wind gust in Essex county.St. Lawrence County3 NNW Eddy 11 1620EST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail reported.St. Lawrence County3 NNW Eddy 11 1624EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Tree and several large branches down along Old DeKalb road.A weak cold front finally pushed a stationary boundary across New York during the afternoon and evening of August 11th. Afew thunderstorms developed during the afternoon with an very isolated thunderstorm that produced marginal severe weathernear Canton in St. Lawrence county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.303

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, WestNiagara County1 WSW Newfane 04 1800EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)Law enforcement and spotters reported trees and wires down.Thunderstorms developed along the convergence of the lake breezes in Niagara county. The thunderstorm winds downed treesand power lines in the Town of Newfane. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chautauqua County1 NW Dunkirk 05 1204EST 0 0 8.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.Chautauqua County1 NW Dunkirk 05 1230EST 0 0 15.00K 0.00K Thunderstorm Wind (59MG)Note: The measured wind gust of 59 knots is equivalent to 68 mph.Erie County1 W Forest Glen 05 1235EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Erie County1 W Windom 05 1238EST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)A tree fell on a truck.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Erie County2 SSW Buffalo 05 1245EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Erie County1 W East Aurora 05 1250EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Erie County1 W Clarence 05 1300EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)The media reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Livingston County2 WNW Caledonia 05 1302EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Livingston County3 S Groveland 05 1308EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monroe CountyChili Center 05 1308EST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monroe County2 SW Beechwood 05 1323EST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.304

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, WestWayne County1 NE Walworth 05 1350EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wayne County1 NE Sodus 05 1352EST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monroe County1 NNE Beechwood 05 1401EST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wayne County2 SE Cumminsville 05 1401EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monroe County1 NE Pittsford 05 1410EST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Oswego County2 NW Pennellville 05 1429EST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Oswego County1 W Minetto 05 1444EST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jefferson County1 N Ellisburg 05 1500EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Oswego County1 S Mexico 05 1500EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jefferson County1 SE Adams 05 1508EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Orleans County1 E Albion 05 1508EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Showers and thunderstorms developed in a warm, moist atmosphere ahead of an approaching cold front. Wind gusts weremeasured to 60 mph. The thunderstorm winds downed trees and power lines throughout the region. In many areas, downedtrees blocked roads and highways. In Windom, a truck was crushed by a falling tree. Note: The estimated wind gust of 52knots is equivalent to 60 mph.305

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, WestJefferson County1 N Brownville 05 1522EST1730EST 0 0 15.00K 0.00K Flash FloodSlow moving thunderstorms crossed the North country during the afternoon hours. One of the storms produced rainfalls rates ofup to two inches an hour. This resulted in flash flooding in the Town of Brownville in Jefferson County.Lewis County1 SW New Bremen Duflo Arp 05 1539EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lewis County1 W Beaches Bridge 05 1548EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lewis County1 N Martinsburg 05 1554EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down.Showers and thunderstorms developed in a warm, moist atmosphere ahead of an approaching cold front. Wind gusts weremeasured to 60 mph. The thunderstorm winds downed trees and power lines throughout the region. In many areas, downedtrees blocked roads and highways. In Windom, a truck was crushed by a falling tree. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Niagara County1 SW North Ridge 08 1319EST 0 1 25.00K 0.00K LightningNiagara County2 NE Reynales Basin 08 1344EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees and wires down in Cambria.Thunderstorms moved across Niagara county during the early afternoon hours. The thunderstorm winds downed trees andpower lines in Cambria. Lightning struck a 24-inch diameter tree at Lazy Lake Campground. The tree split with a large limbfalling pinning a man under a camper. The man suffered leg injuries. Note: The estimated wind gust of 52 knots is equivalentto 60 mph.Cattaraugus County1 NE Olean 09 1815EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported trees and wires down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allegany County2 SSW Obi 09 1829EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported trees and wires down.A weak frontal boundary was the focus for thunderstorms which developed during the evening. The thunderstorms produceddamaging wind estimated at 55 to 60 mph and hail up to nickel-sized. The thunderstorms winds downed trees and power linesnear Olean, Bedford Corners and Bolivar. Hail was also reported in Bolivar. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Cattaraugus County1 NW Portville 09 1834EST2035EST 0 0 15.00K 0.00K Flash FloodAllegany CountyBolivarKossuth09 1835EST2035EST 0 0 12.00K 0.00K Flash FloodAn area of showers and thunderstorms moved across the western southern tier counties. The thunderstorms produced veryheavy rain with rates up to two inches per hour. Flash flooding was reported in Bolivar, Olean and Portville where several roadswere inundated.306

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NEW YORK, WestAllegany CountyBolivar 09 1835EST 0 0 Hail (0.88)Allegany CountyBolivar 09 1835EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)The public reported trees down.A weak frontal boundary was the focus for thunderstorms which developed during the evening. The thunderstorms produceddamaging wind estimated at 55 to 60 mph and hail up to nickel-sized. The thunderstorms winds downed trees and power linesnear Olean, Bedford Corners and Bolivar. Hail was also reported in Bolivar. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Cattaraugus CountyOlean 09 2015EST2115EST 0 0 15.00K 0.00K Flash FloodNORTH CAROLINA, CentralWake County1 SW Lassiter1 NE BarhamAn area of showers and thunderstorms moved across the western southern tier counties. The thunderstorms produced veryheavy rain with rates up to two inches per hour. Flash flooding was reported in Bolivar, Olean and Portville where several roadswere inundated.01 1612EST1623EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A couple of trees were blown down around the Rolesville area.Wake County3 NNE Bayleaf1 E ZebulonNote: The estimated wind gust of 50 knots is equivalent to 58 mph.01 1639EST1709EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A couple of trees and power lines were blown down along a swath from near Falls Lake to near Wendell.A mid/upper level through axis was located across western North Carolina. As a disturbance aloft rotated through the base ofthe trough and eventually over our region in the southwesterly flow aloft, scattered showers and thunderstorms developedduring the heating of the day, with a couple of the storms becoming severe in the moderately unstable air mass. Note: Theestimated wind gust of 50 knots is equivalent to 58 mph.Moore County1 W Addor 02 1148EST 0 0 0.00K 0.00K Hail (1.25)Quarter to half dollar size hail was reported southwest of Pinebluff.Johnston County1 SE Kenly 02 1248EST 0 0 0.00K 0.00K Hail (1.75)Hail up to the size of golf balls was reported near Kenly and fell for at least 15 minutes.Johnston County1 S Kenly1 ENE Rains Xrds02 1252EST1328EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Several reports of wind damage were received along a swath about 4 miles long south of Kenly. Shutters were blown off of onehome and two 100 year old oak trees snapped and fell on vehicles and fences.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland County1 SE Skibo 02 1315EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported on Skibo Road in Fayetteville.307

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralNash County2 SW Spring Hope 02 1343EST 0 0 0.00K 0.00K Hail (1.00)Hail up to the size of quarters was reported near Spring Hope and fell for about 10 minutes.Cumberland County2 S (POB)Pope Afb Fayett1 W Slocomb02 1343EST1400EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Multiple trees and power lines were blown down along a swath from Fort Bragg to Wade.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland County1 SE Bonnie Doone 02 1347EST 0 0 0.00K 0.00K Hail (1.50)Ping pong ball size hail was reported near Bragg Boulevard and Swain Street in Fayetteville.Cumberland County1 SW Owens 02 1435EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported on Watauga Road in Fayetteville and lasted about 10 minutes.Franklin County1 W Franklinton 02 1441EST 0 0 0.00K 0.00K Hail (1.00)Cumberland County2 NW Cumberland1 SW Bonnie DooneQuarter size hail was reported in Franklinton.02 1500EST1639EST 0 0 10.00K 0.00K Flash FloodMultiple reported of flash flooding were received just west of downtown Fayetteville. Flooding was reported on Yadkin Road,on Santa Fe Road, on Strickland Bridge Road near the intersection of Graham Road and on Hope Mills Road, with severalreports of stranded cars. Hybarts Branch Creek came out of its banks and flooded several yards. Several roads also flooded nearthe Cross Creek Mall, with some water getting into portions of the mall and cars in the parking lot had water over the tires.Moore County1 S Mc Connell 02 1530EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported in the High Falls area.Richmond County2 ENE Hoffman 02 1545EST 0 0 0.00K 0.00K Hail (1.75)Quarter to golf ball size hail was reported near Hoffman.Sampson County1 ENE Harrells 02 1640EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several trees were blown down across the southern portion of the county, including Harrells.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richmond County2 E Cordova 02 1710EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported near East Rockingham and fell for about 10 minutes.With a broad area of troughing persisting across the East Coast, a strong vorticity center aloft and weak surface convergencecombined with a moist and moderately unstable air mass and resulted in scattered showers and thunderstorms, mainly acrossthe Coastal Plain. Numerous reports of wind damage and large hail were received, with flash flooding reported in theFayetteville area.308

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralRandolph County1 NE Erect 06 1900EST2100EST 0 0 0.00K 0.00K Flash FloodBennett Road at State Road 1003 was closed due to flash flooding.Stanly County1 SW Halls Ferry Jct 06 1900EST2100EST 0 0 0.00K 0.00K Flash FloodHigh water was reported at Old Salisbury Road and Kendalls Church Road.A weak lee side trough and ribbon of upper level vorticity over the western Piedmont provided the focus for showers andthunderstorms. These storms produced an area of heavy rainfall between 3 to 4 inches over Stanly, Montgomery and Randolphcounties, that resulted in isolated flooding.Guilford County1 WSW Gbsnvll Mc Lean Arpt 08 1420EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Two trees were blown down near NC Highway 61 at Cone Club and Kivette House roads.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Alamance County1 W Elon College 08 1438EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)One tree was blown down in Elon. Large tree limbs were also reported down in the area.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Randolph County1 WNW Pisgah 08 1530EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Two trees were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Vance County1 N North Henderson 08 1540EST 0 0 0.00K 0.00K Hail (1.00)Vance CountyWilliamsboro 08 1555EST 0 0 0.75K 0.00K Thunderstorm Wind (50EG)Downed power-lines were reported at Route 39 and Stagecoach Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Vance County3 NW Middleburg 08 1610EST 0 0 0.00K 0.00K Hail (1.00)Lee CountySanford 08 1621EST1631EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees and power-lines were blown down in the city limits, resulting in approximately 3,000 customers without power.Vehicles were damaged when a large tree fell at the 100 block of Carbonton Road. Monetary damages were estimated.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Stanly County1 NW Palmerville 08 1629EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)One tree was reported down onto a house. No other information was available.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.309

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralFranklin CountyIngleside2 WSW Moulton08 1646EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Several power-lines were blown down near Louisburg, including along Malcolm Neal Path.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Stanly County1 NW Albemarle Arpt 08 1655EST 0 0 0.75K 0.00K Thunderstorm Wind (50EG)Wake County2 SE Bayleaf1 NNE KnightdalePower-lines were reported down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.08 1759EST1827EST 0 0 0.75K 0.00K Thunderstorm Wind (50EG)A half dozen trees were blown down along the wind swath, including trees down onto power-lines on Pineview Drive in WakeForest.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Johnston County3 ENE Flowers 08 1851EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)One tree was blown down on Thanksgiving Fire Road.Strong surface heating in advance of the passage of an upper level disturbance resulted in moderate destabilization acrosscentral North Carolina on the afternoon of the 8th. Storms developed quickly along the leading edge of lift associated with thisupper level feature with three cluster of severe storms producing scattering wind damage across the area. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.Wilson County1 SE Stantonsburg 11 1609EST1610EST 0.21 40 0 0 350.00K 0.00K Tornado (EF1)Four houses on R B Avenue were severely damaged. One home was ripped off its foundation. A carport roof was destroyed atanother home. Vehicles were damaged, along with downed trees, and broken windows.A QLCS tornado briefly spun up in Wilson County as it encountered a moist and moderately unstable air mass in place acrosseastern North Carolina.Davidson County1 S Gordontown1 E Silver VlyStanstonburg EF-1 QLCS Tornado. August 11, 2012. Photo courtesy of the National Weather Service Raleigh, NC.11122000EST0000EST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along Old US Highway 64 and NC Highway 109 with multiple water rescues on Regan Road andNew Cut Road as flood waters entered homes.310

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralRandolph County4 SW Fullers 11122301EST0029EST 0 0 0.00K 0.00K Flash FloodLittle Uwharrie Road near the intersection of Riverchase Drive was closed due to a nearby flooded creek.Training thunderstorms along a stalled surface front produced heavy rainfall of 4 to 5 inches and flash flooding to Gordontownin Davidson County.Halifax County4 WSW Summit 14 2220EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A couple of trees were blown down on Highway 158 between Littleton and Roanoke Rapids.With a broad upper level trough located west of the region, an upper level disturbance in the southwesterly flow aloft movedover central North Carolina during peak heating. This resulted in scattered convection across the region, with one stormproducing some isolated wind damage in Halifax County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richmond County2 WSW Norman 15 1337EST 0 0 0.00K 0.00K Hail (0.75)Dime size hail was reported on Clayton Carriker Road.Richmond County2 WSW Norman 15 1337EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Large tree limbs were reported blown down near Clayton Carriker Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Nash County1 E Hickory 15 1440EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported near exit 150 along Interstate 95.An upper level disturbance and associated surface trough moved across central North Carolina and interacted with a moderatelyunstable air mass to spark scattered showers and thunderstorms across the area. A few of these thunderstorms became severeacross southern and eastern portions of the area producing wind damage and hail to the size of quarters.Stanly County1 W Albemarle 17 1612EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A couple of trees were blown down just west of the city of Albemarle.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Moore CountySouthern Pines 17 1828EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Several trees were blown down within the city limits of Southern Pines.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lee County1 SW Lemon Spgs 17 1830EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Four trees were blown down just off of Rocky Fort Church Road near US Highway 1.Guilford County1 SSE Terra Cotta1 N GreensboroAs a sharpening Piedmont Trough interacted with remnant outflow/vorticity maximum, convection was triggered over theNorth Carolina mountains and the South Carolina Piedmont. As some of these storms moved into better instability that waslocated over the Southern Piedmont of North Carolina, some isolated wind damage was reported. Note: The estimated windgust of 50 knots is equivalent to 58 mph.19 0400EST0600EST 0 0 0.00K 0.00K Flash FloodFlood waters from South Buffalo Creek flooded Latham Road near Wendover Avenue. The intersections of Beckford Driveand Fairfax Road were also blocked off from traffic.311

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralHalifax County2 SSE Enfield Dunroamin Ar 19 0911EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees and power-lines were blown near the intersection of 13 Bridges Roand and Douglas Hill Farm Road.Halifax County1 NNW Halifax Co Arpt1 SSW Roanoke RapidsNote: The estimated wind gust of 50 knots is equivalent to 58 mph.19 0936EST1230EST 0 0 0.00K 0.00K Flash FloodHigh water was reported on several roads in Roanoke Rapids, including 12th Street, NC Highway 158 and on the Julian R.Allsbrook Highway. High water was also reported on Weavers Chapel Road.A series of shortwave disturbances moving atop a stalled surface with very moist air in placed produced an area of slow movingshowers and thunderstorms that evolved into an line segment as it moved east across central North Carolina during the morninghours of the 19th. The slow moving storms resulted in minor flooding and isolated severe thunderstorm wind damage.Guilford County2 SSW Rankin1 SW Bessemer22 1832EST2000EST 0 0 0.00K 0.00K Flash FloodFlash flood waters entered an apartment building on Hahns Lane. Latham Park was also flooded. Assistance was also requiredto help stranded motorists on Wendover Avenue.An area of slow moving showers and thunderstorms produced an area of heavy rainfall of 2 to 3 inches over Greensboro thatresulted in minor street flooding.Halifax County1 NNE Aurelian Spgs2 E Thelma25 0520EST1059EST 0 0 500.00K 0.00K Flash FloodEight to twelve inches of rain resulted in flash flood waters of nearly 2 feet deep that flooded more than 80 residences and theevacuation of more than 50 residents. Two roads were washed out along with the force closures of dozens of roads in theRoanoke and Weldon areas, including the closure of Interstate 95 for several hours near mile marker 172.5. No injuries werereported.Roanoke Rapids Flash flooding. August 25, 2012. Photo courtesy of Halifax County Emergency Services.Halifax CountyScotland Neck 25 0645EST1059EST 0 0 0.00K 0.00K Flash FloodEast 7th Street and Park Avenue was closed due to flooding.A band of moderate to heavy rain pivoted over central and northern portions of the North Carolina coastal plain during the earlymorning hours of the 25th as a low pressure center tracked north along the North Carolina Coast. While a large rainfall swath of2 to 5 inches fell across the area, the heaviest rainfall was focused across northern Halifax County where 8 to 12 inches wasobserved.312

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, CentralForsyth County1 SW Park Terrace 28 2031EST2255EST 0 0 30.00K 0.00K Flash FloodStreet flooding resulted in the closings of several roads in the area. Approximately 30 people were evacuated by inflatable raftsat a local business on Northwest Boulevard. Additionally, flash flood waters swept five vehicles from the parking lot intoPeter's Creek.A line of showers and thunderstorms developed along a pre-frontal surface trough that moved southward out of southernVirginia. Cell mergers and back building of the convection along the line resulted in an area of heavy rainfall of 3 to 4 inchesover the northwest Piedmont which caused minor street flooding in urban areas of Winston Salem.NORTH CAROLINA, Central CoastalGreene County1 SSE Wootens Xrds 02 1210EST 0 0 0.00K 0.00K Hail (0.88)Local fire department reported a mix of dime and nickel size hail along Fire Tower Road.Greene County1 NNE Castoria 02 1216EST 0 0 0.00K 0.00K Hail (1.00)Public reported a mix of nickel and quarter size hail along Highway 91.Lenoir County2 NNE La Grange 02 1320EST 0 0 0.00K 0.00K Hail (1.00)Lenoir County 911 relayed a public report of quarter size hail north of La Grange.Lenoir County2 NNW Kinston 02 1331EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Lenoir County 911 reported a tree down on a vehicle on Doctors Drive north of Kinston.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Duplin County1 WNW Jackson Store 02 1505EST 0 0 0.00K 0.00K Hail (0.88)North Carolina Department of Transportation employee reported hail as large as nickel size near Highway 41 and Jackson StoreRoad south of Beulaville.An upper level disturbance moved east across Eastern North Carolina during the afternoon hours of August 2nd, 2012. A fewthunderstorms became severe with hail and damaging winds.Pamlico County1 S Arapahoe 15 1240EST 0 0 0.00K 0.00K Funnel CloudMedia relayed a public report of a funnel cloud near Arapahoe.An upper level disturbance coupled with intense daytime heating produced showers and weak thunderstorms across EasternNorth Carolina during the afternoon hours of August 15th, 2012. Showers and thunderstorms remained sub-severe however onefunnel cloud was reported.Dare County1 NE Rodanthe 19 1319EST 0.01 20 0 0 0.00K 0.00K Tornado (EF0)Public reported that a waterspout moved onshore near the Rodanthe Campground. No damage was reported.A weak upper level disturbance combined with a stationary boundary produced a brief waterspout that moved onshore nearRodanthe during the early afternoon hours of August 19th, 2012.313

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, Central CoastalCarteret County1 NE Gloucester 24 1950EST 0 0 0.00K 0.00K Hail (1.00)NORTH CAROLINA, Extreme SouthwestMedia relayed a public report of quarter sized hail on Sand Dollar Drive near Gloucester.An area of low pressure developed off the Cape Fear coast and moved northeast along the Eastern North Carolina coastlineduring the late evening hours of August 24th, 2012. Strong thunderstorms occurred with the low as it passed along the coast.One storm became severe with large hail.Cherokee CountyMurphy 01 1729EST1735EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)NORTH CAROLINA, North CoastalLaw enforcement personnel reported several trees were downed by a thunderstorm wind in Murphy.A frontal boundary across the region triggered isolated thunderstorms during the afternoon hours. A few of the storms produceda damaging thunderstorm wind. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Currituck County3 SE Mayock 07 1536EST 0 0 0.00K 0.00K Funnel CloudFunnel cloud was reported along and just northwest of Highway 168 between Survey Road and Shingle Landing Creek Road.Isolated thunderstorm associated with a trough of low pressure produced a funnel cloud across portions of northeast NorthCarolina.Currituck County3 NNW Snowden 07 1750EST 0 0 0.00K 0.00K FloodMinor to moderate residential flooding in Moyock, including a parking lot on Highway 168.Currituck County3 NNW Snowden3 NW Tulls07 1825EST 0 0 0.00K 0.00K FloodMinor to moderate street flooding was reported along Tulls Creek Road between Guinea Road and Sawyertown Road.Scattered thunderstorms associated with a trough of low pressure produced heavy rain which caused flooding across portions ofnortheast North Carolina.Currituck County3 NNW Snowden 15 1600EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were downed and caused minor damage to the siding and gutters of a home.Isolated severe thunderstorm along a frontal boundary produced damaging winds across portions of northeast North Carolina.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hertford County2 NNW Lloyd Xrds 19 1046EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees and power lines were downed and an irrigation system was damaged along Pawnee Road.Isolated severe thunderstorm along a frontal boundary produced damaging winds across portions of northeast North Carolina.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Northampton County1 E Garysburg 25 0645EST0900EST 0 0 0.00K 0.00K Flash FloodMobile home park was flooded. One person was rescued.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of northeast North Carolina.314

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, North CoastalNorthampton County2 SE Vultare 25 0647EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 7.25 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of northeastNorth Carolina.Northampton County1 W Gaston 25 0659EST0900EST 0 0 0.00K 0.00K Flash FloodBridge collapse on Residential Street Bay Street due to flooding.Northampton County1 SSW Stancell1 ENE Henrico25 0700EST0900EST 0 0 0.00K 0.00K Flash FloodPortion of Route 46 was washed out between River Road and Gaston due to flooding. Spotter reported a rainfall amount of 7.25inches 6 miles west of Gaston.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of northeast North Carolina.Northampton CountyVultare 25 2013EST 0 0 0.00K 0.00K Heavy RainNORTH CAROLINA, Northwest and North CentralRainfall amount of 7.20 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of northeastNorth Carolina.Watauga County1 NNE Boone 01 2242EST2248EST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)The Watauga County 911 Center reported that several trees were down on Bamboo Road on the east side of Boone. TheWatauga County Sheriff's Office reported that a tree was down on a home on Blue Ridge Avenue in Boone.Ashe CountyWagoner2 NNE Glendale SpgsNote: The estimated wind gust of 50 knots is equivalent to 58 mph.01 2252EST2345EST 0 0 0.00K 0.00K Hail (1.00)Multiple reports of quarter-sized hail were received from the public southeast of Jefferson near Wagoner and just northeast ofGlendale Springs. Near Glendale Springs, hail, ranging in size from peas to quarters, fell for nearly an hour and accumulated toa depth of one to two inches in some spots.Wilkes CountyWilkesboro 01 2320EST 0 0 0.00K 0.00K Hail (0.75)Wilkes County4 NE Wilkesboro2 SE North WilkesboroThe public observed penny-sized hail in Wilkesboro.01 2340EST2348EST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)The Wilkes County Sheriff's Department reported that several trees and power lines were down throughout North Wilkesboro.In addition, trees were down on Johnson road near Hays, approximately four miles northeast of North Wilkesboro.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.315

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, Northwest and North CentralStokes County2 SSE Francisco 01022352EST0007EST 0 0 0.00K 0.00K Hail (1.00)The public observed quarter-sized hail falling for approximately 15 minutes.Wilkes County3 S Moravian Falls 02 0014EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Trees and power lines were blown down along State Route 16.A broad, weak upper trough persisted across the eastern U.S., a continuation of the pattern from late July. With a very moist,unstable air mass present across the region and the presence of the upper trough, scattered to numerous thunderstormsdeveloped during the afternoon and persisted even past midnight. The storms generally progressed from the southernShenandoah Valley area of Virginia to Roanoke and south central Virginia during the late afternoon/evening. Then, around 10pm EDT, a new area of thunderstorms developed in northwest North Carolina, which also quickly became severe. A mixture ofhail and damaging thunderstorm winds were observed with the early morning North Carolina activity. Note: The estimatedwind gust of 50 knots is equivalent to 58 mph.Rockingham County2 W Reidsville 03 1834EST 0 0 0.25K 0.00K Thunderstorm Wind (50EG)A trained storm spotter reported that a couple of large tree limbs were down approximately two miles west of Reidsville.A hot humid air mass was present across the region as a broad area of subtropical high pressure aloft continued to dominate thesouthern United States. A series of weak, embedded upper disturbances were noted in the westerlies that were tracking acrossthe region. As these disturbances impinged on the unstable air mass present across the area, scattered afternoon and eveningthunderstorms were the rule. An isolated thunderstorm briefly became severe in Rockingham county, North Carolina duringthe evening and produced minor wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Watauga County1 NW Mabel 05 2111EST2215EST 0 0 10.00K 0.00K Flash FloodThe Watauga County 911 Center reported that heavy rain from repeated thunderstorms, followed by an additional line ofthunderstorms during the late afternoon through mid-evening, resulted in flooding of North Fork Road at Zionville. A portionof the road was washed out and had to be closed. Several inches of water were flowing over the road at this location.An upper trough and associated cold front was moving from the Ohio Valley toward the Mid-Atlantic region as the strongsummer subtropical ridge was squashed southward across the southeast states. Showers and thunderstorms developed duringthe late afternoon across northwest North Carolina in advance of a near solid line of thunderstorms that tracked across the areaduring the evening in advance of the cold front. Two to three inches of rain fell across parts of northwest North Carolinaduring this time frame. One flash flood event was observed in Watauga county just north of Sugar Grove.Surry County7 E Woodville 07 1133EST 0 0 0.00K 0.00K Hail (0.75)The public observed penny-sized hail on Minervia Way approximately five miles north of Francisco.Rockingham County1 NE Wentworth 08 1250EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)The Rockingham County 911 Center reported that a tree was blown down on and blocking Hancock Road just northeast ofWentworth.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Surry County4 S Shoal 08 1300EST 0 0 0.00K 0.00K Hail (1.00)Yadkin County6 WNW East Bend 08 1316EST1330EST 0 0 0.00K 0.00K Hail (1.25)The public observed half-dollar-sized hail on Lime Rock Road. Penny-sized hail was also observed by the public on HollySprings Road between Linda Lane and Siloam Road. Hail of penny-sized fell in the area for up to 30 minutes.316

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, Northwest and North CentralRockingham County2 SE Reidsville 08 1328EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)The Rockingham County 911 Center reported that a tree was blown down by thunderstorm winds on Barnes Street near theintersection of U.S. Highway 29.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Surry County5 SSW Pilot Mtn 08 1400EST1420EST 0 0 0.00K 0.00K Hail (1.00)The public observed quarter-sized hail. Hail up to the size of quarters fell in the area for up to 20 minutes.A series of upper level disturbances were moving through a broad, slightly negatively tilted upper trough located across theGreat Lakes. With a warm, very moist air mass present across the region, scattered to numerous showers and thunderstormsdeveloped during the early afternoon across northwest North Carolina along a weak surface trough. Several of these stormsreached severe limits producing quarter to half-dollar-sized hail and isolated damaging wind reports.Rockingham County2 E Ayersville 11 1809EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)NORTH CAROLINA, South CoastalNew Hanover CountyWilmington1 N South WilmingtonThe public observed several large tree limbs down blown down approximately five miles west of Stoneville.The upper trough, which had persisted across the Great Lakes and Ohio Valley region for much of the week, had drifted easttoward the eastern Great Lakes. The associated frontal system was nearly stationary from central Virginia into northwest NorthCarolina, or roughly from Washington D.C. to near Winston-Salem North Carolina. The frontal system remained the focus forisolated to scattered afternoon and evening shower and thunderstorm development. Minor wind damage was reported. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.01 0700EST0800EST 0 0 Heavy RainSeveral inches of standing water were at the intersection of 16th Street and Dawson. Water was also standing at 17th Street andIndependence.New Hanover County1 NNE Carolina Beach 01 0812EST0912EST 0 0 Heavy RainHeavy rain produced street flooding on Canal Drive in Carolina Beach.Heavy rain produced street flooding in Wilmington.Bladen County1 SW Elizabethtown 02 1615EST1630EST 0 0 0.50K 0.00K Hail (0.88)Hail to the size of nickels was reported along Peanut Plant Road.Bladen County2 S Elizabethtown3 WSW Elizabethtown Arpt02 1620EST1640EST 0 0 3.00K 0.00K Hail (1.00)Hail to the size of quarters was reported along and near Highway 701.Pender CountyAtkinson 02 1712EST1730EST 0 0 3.00K 0.00K Hail (1.00)Hail to the size of quarters was reported.317

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, South CoastalBladen CountyKelly 02 1725EST1740EST 0 0 3.00K 0.00K Hail (1.75)Hail to the size of golf balls was reported.Columbus County1 S Emerson 02 1955EST1956EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Several trees were reportedly snapped along old Stake Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbus CountyChadbourn 02 2015EST2018EST 0 0 12.00K 0.00K Thunderstorm Wind (50EG)Three buildings sustained minor roof damage. Several trees were also reported down.Thunderstorms developed along multiple surface boundary interactions. A cold pool aloft allowed thunderstorms to intensifyand several storms did produce large hail. There were also reports of wind damage. Note: The estimated wind gust of 50 knotsis equivalent to 58 mph.Columbus County6 W Rico 11 1430EST1431EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down near the intersection of Silver Spoon Road and Wooten's Store Road.A broken line of thunderstorms bowed out across Columbus County, producing minor wind damage. Note: The estimated windgust of 50 knots is equivalent to 58 mph.Brunswick County1 ENE Ft Caswell 12 0400EST 0 0 75.00K 0.00K LightningLightning struck a house at 27 Mourning Warbler Court, setting the third floor on fire. Renters of the home were able to escapewithout injury.Lightning struck a house on Bald Head Island.New Hanover County1 NNE Castle Hayne 19 1300EST 1 0 0.00K 0.00K LightningLightning struck and killed a man while fishing on the Northeast Cape Fear River near Castle Hayne. M50BOLightning struck and killed a man who was fishing on the Northeast Cape Fear River. M50BONORTH CAROLINA, SouthwestAlexander County1 NE Paynes Store 02 0105EST 0 0 Hail (1.00)Catawba County2 NE Oyama3 WNW Claremont02 0110EST0115EST 0 0 Thunderstorm Wind (50EG)There were several reports of multiple trees, large limbs and power lines blown down across the north side of Conover. At leastone tree fell on a home.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Catawba County1 N Conover 02 0125EST 0 0 Hail (0.75)Mcdowell County1 SE Marion 02 1253EST 0 0 Thunderstorm Wind (50EG)Trees were blown down on West Henderson St.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.318

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, SouthwestMcdowell County2 ENE Sugar Hill 02 1330EST 0 0 Hail (0.75)Penny size hail was reported in the Sugar Hill community.Henderson County1 SSW Tuxedo 02 1435EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down on highway 25 south of Hendersonville and Flat Rock.Union County2 WNW Fairfield3 SE UnionvilleNote: The estimated wind gust of 50 knots is equivalent to 58 mph.02 1706EST1716EST 0 0 Hail (1.75)Half dollar to golf ball size hail fell over northeast Union County.Union County2 NW Fairfield3 SSE Unionville02 1710EST1725EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down along New Salem Rd from the Tarton Mill Rd intersection to the highway 200 intersection.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Union County1 E Monroe 02 1730EST 0 0 5.00K LightningLightning struck a tree on Church St, which fell on and damaged two vehciles.Scattered thunderstorms developed over western North Carolina during the early morning hours, and again during theafternoon. A few of the storms caused wind damage and produced large hail.Mecklenburg County4 N Homestead 03 1810EST 0 0 Thunderstorm Wind (50EG)Four trees were blown down at a nature preserve near Mountain Island Lake.Scattered pulse-type thunderstorms developed over western North Carolina during the afternoon hours. One of the stormsproduced localized wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mecklenburg County1 NNE Pineville 07 1910EST2000EST 0 0 0.00K 0.00K Flash FloodA few back roads were closed in parks near Pineville due to high water.Mecklenburg County1 ESE Thomasboro1 W Charlotte07 1930EST2030EST 0 0 20.00K 0.00K Flash FloodPeople in two separate vehicles required rescue at the intersection of Ashley Road and Wilkinson Blvd. Another vehicle wastrapped in high water at Camp Greene Street at Freedom Drive. A final water rescue occurred at the intersection of WesleyVillage and Freedom Drive. All of these are on the west side of Charlotte where automated gauges reported 2 to 3 inches ofrain in a little over an hour.Slow moving thunderstorms dropped 2 to 4 inches of rain in a short period of time, resulting in areas of mainly urban floodingin downtown Charlotte and southward toward the South Carolina state line.Transylvania County2 SSE Oakland 08 1256EST 0 0 Hail (0.75)Penny size hail was reported in Gorges State Park.319

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, SouthwestIredell County2 SSE Mooresville 08 1312EST 0 0 Thunderstorm Wind (50EG)Trees were blown down on Shearers Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Burke County1 N Calvin 08 1417EST 0 0 Hail (1.00)Quarter size hail was reported about 4 miles west northwest of Morganton.Mecklenburg County1 N Idlewild 08 1426EST 0 0 Thunderstorm Wind (50EG)Mcdowell County1 SSE West Marion1 WSW GlenwoodLarge tree limbs were blown down in the Plaza area.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.08 1505EST1510EST 0 0 Thunderstorm Wind (50EG)Trees were blown down, blocking I-40 East about 3 miles south of Marion. Multiple trees were also blown down along GooseCreek Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mcdowell County1 ESE West Marion 08 1507EST 0 0 Hail (0.75)Mcdowell County2 SW Glenwood 08 1530EST 0 0 Hail (1.00)Quarter size hail was reported in the Glenwood community.Mcdowell County2 E Sugar Hill 08 1535EST 0 0 Thunderstorm Wind (55EG)Numerous trees were blown down south of the Glenwood community.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Cleveland County3 ENE Archdale 08 1555EST 0 0 Thunderstorm Wind (50EG)Two large tree limbs were blown down across I-85.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Haywood County2 SSE Canton 08 1747EST 0 0 Hail (0.88)Union County3 N Alton 08 2030EST2200EST 0 0 0.00K 0.00K Flash FloodCounty communications center reported Medlin Road and Macedonia Church Road were flooded by little Richardson Creek.Water was crossing Charlie Williams Road near the intersection with stack Road and was apparently the result of floodingalong Little Richardson Creek.The combination of a dissipating frontal boundary and a hot and humid airmass resulted in numerous showers andthunderstorms over western North Carolina. Some of the thunderstorms caused localized wind damage and large hail. Onestorm dropped 3.5 inches of rain in a short period of time, causing a small area of flooding east of Charlotte.Henderson County1 NW Horse Shoe1 WSW Mills River09 1355EST1400EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down about 2 miles south southwest of Mills River. A tree was also blown down on South MillsRiver Rd 2 miles west of town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.320

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, SouthwestRutherford County2 W Avondale4 NNE Sunshine09 1708EST1730EST 0 0 Thunderstorm Wind (55EG)Numerous trees were blown down across eastern portions of the county.Burke County1 NE Calvin2 ENE Oak HillNote: The estimated wind gust of 55 knots is equivalent to 63 mph.09 1800EST1805EST 0 0 Thunderstorm Wind (50EG)Multiple trees and power lines were blown down along highway 181 and along Spainhour Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Caldwell County1 WSW Richland 09 1859EST2000EST 0 0 5.00K 0.00K Flash FloodA small stream flooded Waterfalls Road near it's intersection with Kirby Mountain Road. Also, several private bridges werewashed out on Richland Road near Hwy 321.Another hot and humid day, along with an approaching upper trough, supported quite a bit of shower and thunderstorm activityover western North Carolina. A few of the thunderstorms produced small areas of straight line wind damage. One slow movingthunderstorm dropped around 3 inches of rain, causing a small area of flash flooding in the North Carolina foothills.Buncombe County2 E Barnardsville 10 1952EST 0 0 Thunderstorm Wind (50EG)Multiple trees and large limbs were blown down along highway 197 near the Barnardsville community.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Buncombe County1 E Montreat 10 2006EST 0 0 Hail (0.88)Mcdowell County2 W Glenwood 10 2045EST 0 0 Thunderstorm Wind (50EG)Two trees were blown down along Goose Creek Rd.A cold front crossed the mountains during the late evening hours, triggering scattered thunderstorms. The wind shear was alittle stronger than normal for the summer months, and a couple of the storms reached severe limits causing wind damage.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Henderson County1 SE Horace 14 1542EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Summer Road near the Polk County line.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk County5 WNW Mill Spg 14 1550EST 0 0 Thunderstorm Wind (50EG)A small tree was blown down just outside the reception area for Bright's Creek Golf and Equestrian Community.An isolated thunderstorm caused a little wind damage along the Blue Ridge Mountains. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Gaston County1 SSW Gastonia 22 1600EST 0 0 5.00K 0.00K Heavy RainSaturated soil owing to recent heavy rainfall caused a tree to fall on a vehicle at Garrison Bvd and highway 321.321

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH CAROLINA, SouthwestHenderson County1 W Bat Cave 22 2200EST 0 0 Heavy RainHighway 64/74 was briefly closed with a small mud slide covering one lane to a depth of 6 to 10 inches.Henderson CountyDana 22 2215EST 0 0 Hail (0.75)Henderson County1 S Blue Ridge 22 2215EST 0 0 50.00K 0.00K LightningLightning struck a tree that fell on and heavily damaged a home on Toone Town Terrace. An occupant was briefly trappedinside.Scattered thunderstorms developed along the Blue Ridge Mountains and drifted slowly to the southwest. The storms producedheavy rain and some lightning damage.Union County2 NE Unionville 29 1456EST1600EST 0 0 0.00K 0.00K Flash FloodEast Lawyers Road was flooded between the intersections of Morgan Mill Road and Honeycutt Simpson Road. Flooding wasreported near the intersection of Sikes Mill Road and Love Mill Road.Union County2 NE Wingate 29 1515EST1615EST 0 0 0.00K 0.00K Flash FloodMcIntyre Road was closed due to flooding about 5 miles east of Monroe.A stationary complex of thunderstorms dropped 3 to 4 inches of rain in around an hour's time. Three roads were closed due toflooding, though it was difficult to determine if any creeks were involved.NORTH DAKOTA, Central and WestMercer County2 ESE Hazen 02 1545CST1555CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Mclean County1 N Falkirk 02 1606CST1616CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)An estimated severe thunderstorm wind gust was reported.A short wave impulse advecting east across central North Dakota maintained an area of showers and embedded thunderstorms.There were two reports of severe thunderstorm wind gusts. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Burleigh County4 SE (BIS)Bismarck Muni A 03 1322CST1327CST 0 0 0.00K 0.00K Hail (0.75)La Moure County1 SE La Moure 03 1556CST1601CST 0 0 0.00K 0.00K Hail (0.75)Severe Thunderstorm Watch number 553 was in effect during this event.A surface cold front pushing east across south central North Dakota brought widespread rainfall to much of the state. Tworeports of hail were received.NDZ033Stark24 0215CST0220CST 0 0 0.00K 0.00K High Wind322

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH DAKOTA, Central and WestA non-thunderstorm isolated strong wind gust occurred over Stark County in southwest North Dakota. Strong downdraft windsfrom weak shower activity were reported at the Dickinson airport.Mercer County1 SE Hazen 24 1607CST1612CST 0 0 0.00K 0.00K Hail (1.00)Mclean County5 S Riverdale 24 1634CST1642CST 0 0 0.00K 0.00K Hail (1.00)Mclean County1 S Coleharbor 24 1653CST1658CST 0 0 0.00K 0.00K Hail (1.25)Mclean County1 NW Washburn 24 1654CST1659CST 0 0 0.00K 0.00K Hail (0.75)Ward County5 SW Surrey 24 1700CST1707CST 0 0 0.00K 0.00K Hail (1.00)Ward County6 S Surrey 24 1704CST1711CST 0 0 0.00K 0.00K Hail (1.00)Ward County1 N Surrey 24 1706CST1712CST 0 0 0.00K 0.00K Hail (1.00)Ward County1 N Surrey 24 1713CST1719CST 0 0 0.00K 0.00K Hail (1.75)Ward County2 E Minot 24 1718CST1723CST 0 0 0.00K 0.00K Hail (0.88)Burleigh County7 NE Wilton 24 1728CST1733CST 0 0 0.00K 0.00K Hail (1.00)Burleigh County6 NNW Regan 24 1730CST1735CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter reported a severe thunderstorm wind gust.Severe Thunderstorm Watch number 588 was in effect during this event.A surface cold front pushing east across central North Dakota was the focus for strong to severe thunderstorms during the lateafternoon and evening hours. Severe convection was supported by a shortwave trough lifting through the northern high plainsregion. There was also ample wind shear and instability. Numerous reports of hail and severe thunderstorm wind gusts werereceived. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.NDZ040Slope24291800CST1200CST 0 0 50.0K 50.0K Wildfire323

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH DAKOTA, Central and WestCritical fire weather conditions existed across southwest North Dakota on August 24. Several wildfires started and one in SlopeCounty, the Deep Creek 2 Fire, was significant.Burleigh County12 N Wing 24 1804CST1809CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Small tree branches were down. Nickel sized hail accompanied the strong winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Kidder County10 NNW Tuttle 24 1805CST1810CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)The strong winds blew shingles off of a roof.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wells County2 ENE Chaseley 24 1830CST1835CST 0 0 0.00K 0.00K Hail (1.00)Burleigh County3 SE Sterling 24 1855CST1905CST 0 0 0.00K 0.00K Hail (1.75)No damage was reported with the large hail.Wells County1 SE Heaton 24 1910CST1915CST 0 0 0.00K 0.00K Hail (1.00)Burleigh County1 SW Driscoll 24 1915CST1920CST 0 0 0.00K 0.00K Hail (0.88)Burleigh County1 SW Driscoll 24 1915CST1920CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Nickel size hail accompanied the strong winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Kidder County1 W Steele 24 1930CST1935CST 0 0 0.00K 0.00K Hail (0.88)Kidder County4 N Steele Muni Arpt 24 1930CST1935CST 0 0 0.00K 0.00K Hail (1.00)Kidder County6 NW Dawson 24 1950CST1955CST 0 0 0.00K 0.00K Hail (0.88)Severe Thunderstorm Watch number 588 was in effect during this event.A surface cold front pushing east across central North Dakota was the focus for strong to severe thunderstorms during the lateafternoon and evening hours. Severe convection was supported by a shortwave trough lifting through the northern high plainsregion. There was also ample wind shear and instability. Numerous reports of hail and severe thunderstorm wind gusts werereceived.324

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH DAKOTA, Central and WestStutsman County1 W Ypsilanti 25 0522CST0527CST 0 0 0.00K 0.00K Hail (1.00)An isolated severe thunderstorm resulted in one report of hail in Stutsman County.Morton County5 NE Sweet Briar 27 2354CST2359CST 0 0 0.00K 0.00K Hail (1.00)Morton County4 NNW Mandan 28 0015CST0020CST 0 0 0.00K 0.00K Hail (0.88)Burleigh County3 NE (BIS)Bismarck Muni A 28 0230CST0235CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)NORTH DAKOTA, EastNDZ024-026>030-038>039-049The strong winds blew leaves off of bushes.An isolated severe thunderstorm produced hail and a severe thunderstorm wind gust. Note: The estimated wind gust of 52knots is equivalent to 60 mph.Barnes - Cass - Eddy - Grand Forks - Griggs - Nelson - Ransom - Steele - Traill01310000CST2359CST 0 0 DroughtLack of consistent precipitation kept portions of eastern North Dakota in a D2 drought designation per the U. S. DroughtMonitor. Despite several very warm days during the month of August, the average monthly temperature at both Fargo andGrand Forks was a little below normal. Precipitation remained spotty across the area, keeping precipitation totals below normal.The number of severe weather events for August also stayed quite low.Eddy County5 NE Dundas Siding 03 1420CST 0 0 0.00K 0.00K Funnel CloudA brief funnel cloud was seen on the back end of a developing thunderstorm complex.Eddy County12 S Hamar 03 1431CST 0 0 Thunderstorm Wind (50EG)A nearby NDAWN sensor at a four meter height measured peak winds of 57 mph. A representative ten meter height windwould be in excess of 58 mph.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Eddy County6 S Hamar 03 1440CST 0 0 Thunderstorm Wind (50EG)Corn crops were flattened and several branches were blown down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Nelson County2 ESE Petersburg 03 1525CST1535CST 0 0 Thunderstorm Wind (50EG)Strong winds flattened corn crops.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walsh County3 NE Oakwood 03 1630CST 0 0 Thunderstorm Wind (70EG)Two five thousand bushel steel grain bins were blown off their pads and tumbled across a field. Several large tree brancheswere also broken down onto power lines along a nearby county road.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.325

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH DAKOTA, EastRansom County3 N Mc Leod 03 1730CST 0 0 Thunderstorm Wind (58MG)The wind gust was measured at the Sheyenne National Grasslands RAWS site.Note: The measured wind gust of 58 knots is equivalent to 67 mph.Richland County10 W Walcott 03 1732CST 0 0 Thunderstorm Wind (61MG)The wind gust was measured at the Ekre NDAWN site.Note: The measured wind gust of 61 knots is equivalent to 70 mph.Cass County1 N Grandin 03 1740CST 0 0 Hail (0.88)Pea to nickel sized hail fell near mile point 91 on Interstate 29.Richland County2 WSW Pitcairn 03 1740CST 0 0 Thunderstorm Wind (55EG)Several large eight to ten inch diameter tree limbs and branches were broken down in shelterbelts.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Cass County2 S Grandin 03 1745CST 0 0 Hail (1.25)The hail fell along Interstate 29 north of Gardner.Cass County1 E St Benedict 03 1800CST 0 0 0.00K 0.00K Funnel CloudA persistent funnel was reported on the north end of a eastward bowing squall line segment, as viewed from near Wild Rice.Richland CountyAbercrombie 03 1810CST1825CST 0 0 Thunderstorm Wind (70EG)Winds estimated at 70 to 80 mph blew down and uprooted trees.A strong cold front moved through eastern North Dakota and the northwest quarter of Minnesota during the afternoon andevening hours of August 3rd. Afternoon temperatures ahead of the front reached the low to mid 80s with dew points in the lowto mid 60s. Thunderstorms fired all along the frontal boundary with damaging wind gusts becoming the main threat. Bowingsegments also appeared along the line, although no tornadoes were reported. Note: The estimated wind gust of 70 knots isequivalent to 81 mph.Richland CountyDwight 15 1510CST 0 0 Hail (1.00)The report came in through Facebook.Richland CountyWahpeton 15 1510CST 0 0 Hail (1.00)A ribbon of middle 60F surface dew point values worked into eastern North Dakota and the northwest quarter of Minnesotaduring the afternoon of August 15th. These were pretty high values after a week of morning low temperatures in the 50s. Acold front moved into southeast North Dakota and the northwest quarter of Minnesota during the peak of afternoon heating andhelped initiate several severe thunderstorms.Eddy County10 S Hamar 24 2017CST 0 0 Thunderstorm Wind (51MG)The peak wind was measured at the NDAWN mesonet site located ten miles north of McHenry.Note: The measured wind gust of 51 knots is equivalent to 59 mph.326

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012NORTH DAKOTA, EastGrand Forks County3 NNE Reynolds 24 2230CST 0 0 Thunderstorm Wind (60EG)One twelve inch diameter ash tree was uprooted and an eight inch diameter pine tree was snapped in a farmyard. Numeroussmaller branches were strewn about the yard. The time was approximated from radar and other nearby wind sensor reports.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Grand Forks County1 W Grand Forks 24 2320CST 0 0 Hail (0.75)Grand Forks County2 N Merrifield 24 2320CST 0 0 Thunderstorm Wind (60EG)A partially completed sixteen unit double stall garage structure was lofted roughly ten feet to the west-southwest and destroyed.The structure was under construction with roof sheeting completed, but only partial sheeting on the side walls. There were nogarage doors installed at the time.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Grand Forks County2 WSW Grand Forks 24 2320CST 0 0 Thunderstorm Wind (60EG)A one foot diameter tree was uprooted. Numerous other three to five inch diameter tree branches were broken off around thecity.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Grand Forks County1 W Grand Forks 24 2327CST 0 0 Hail (0.88)A round of elevated convection broke out during the evening of August 24th, causing thunderstorms to spread from south ofDevils Lake through the Grand Forks/East Grand Forks area. The storms produced large hail and strong wind gusts.OHIO, EastHarrison County2 WSW Clendening 08 1605EST 0 0 0.00K 0.00K Hail (1.00)Columbiana County1 S Lisbon 08 1835EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported multiple trees down and power outages.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbiana County1 W East Palestine 08 1900EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported multiple trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbiana County1 SSW Jimtown 08 1905EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported multiple trees down and power outages in Negley.Showers and thunderstorms, which developed along a lake breeze, moved southward with a slowly moving cold front in theafternoon on the 8th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Columbiana County1 NW Hanoverton 09 1700EST 0 0 0.00K 0.00K Hail (0.75)Muskingum County1 E Norwich 09 1709EST 0 0 0.00K 0.00K Hail (0.88)327

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, EastMuskingum County1 E Otsego 09 1725EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Local law enforcement reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Guernsey County1 SE Cambridge 09 1736EST 0 0 0.00K 0.00K Hail (1.00)Tuscarawas County1 NE Gilmore 09 1750EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Emergency management reported power lines down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tuscarawas County1 ENE Elm 09 1800EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)OHIO, NorthEmergency management reported power lines down.Showers and thunderstorms, some of which became severe, developed along a stalled boundary of the region on the 9th. Thesestorms, supported by an upper level shortwave and increased instability, moved along the boundary and produced wind damageand hail to portions of eastern Ohio, northern West Virginia, and western Pennsylvania. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Wood County1 NE Pemberville 04 1906EST1908EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported downed trees and power poles from strong thunderstorm winds in the city of Pemberville and acrossEastern portions of Wood County.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Ottawa County5 SSE Elmore Haar Fld Arpt 04 1920EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Strong thunderstorm winds caused downed power lines.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Ottawa County1 ESE Oak Harbor 04 1924EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trained spotter estimated a 60 mph wind.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Seneca County1 ENE Tiffin Seneca Co Arp 04 1927EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds caused large tree limbs to fall on power lines.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lucas CountyMaumee 04 2040EST 0 0 2.50K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds caused a large tree to be uprooted and fell on a house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lucas County1 E Holland 04 2045EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds caused large tree branches and telephone poles to come down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.328

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, NorthLucas County2 WNW Toledo 04 2050EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Media reported an estimated 70 mph wind gust.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Sandusky County5 ENE Woodville 04 2122EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)High tension lines down near State Route 105 and State Route 51.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marion County1 S Bellaire Gardens 04 2140EST 0 0 2.00K 0.00K Thunderstorm Wind (52MG)Public measured a 60 mph wind gust and reported trees down.Note: The measured wind gust of 52 knots is equivalent to 60 mph.Ashland County1 W Ashland 04 2230EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Trumbull County1 N GirardSodomNumerous trees reported down in the city and outskirts.A moderately unstable air mass with temperatures in the mid and upper 80s was in place across Northern Ohio on the afternoonof August 4th. A line of thunderstorms developed upstream across Indiana ahead of a cold front. Severe Thunderstorm Watch561 was issued for 16 counties in Northwest and North Central Ohio. The thunderstorms weakened as they moved east acrossNorthern Ohio, outpacing the front, and caused widely scattered wind damage. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.05 1335EST1345EST 4.05 25 0 0 150.00K 0.00K Tornado (EF0)An EF0 tornado touched down in Girard, Ohio at the intersection of Park Avenue and Smithsonian Street. Maximum windswere estimated between 60 and 70 mph. The storm tracked east northeast at approximately 25 mph to Warner Road east ofLoganway Avenue. The tornado was in contact with the ground intermittently during its 4 mile path length from Girard acrossLiberty Township. The damage path was generally 25 yards in width. Most of the damage occurred to trees. Trees weresnapped and uprooted. At least 4 cars were damaged by falling trees. Branches were downed. Minor damage was alsoobserved to roof tops, chimneys, signs and out buildings.A trailing cold front associated with an area of low pressure over Ontario moved across Northern Ohio during the afternoonhours. Low level convergence and moisture were enhanced along the front and combined to form a brief EF0 tornado out of aline of showers. The shallow tornado circulation was not visible on regional radars but numerous reports of the tornado wererelayed from local law enforcement.Ashtabula County1 S Hartsgrove 08 1405EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Emergency Manager reported a cluster of trees down near Hartsgrove on Laskey Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Ashtabula CountyLenox Center 08 1433EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Emergency Manager relayed reports of trees down south of Jeffereson.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Medina County1 ESE Wadsworth 08 1515EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Law Enforcement reported numerous large tree branches down over a quarter mile stretch which caused structural damage to 3homes.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.329

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, NorthMahoning County1 E Evans LakeNew Middletown08 1755EST1756EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Trained weather spotter reported several large tree limbs down along E Calla Rd. between Springfield Rd. and Struthers Rd. Aportion of a barn was also blown down by the strong wind gusts.A cold front moved south across the area during the afternoon of August 8th. Scattered showers and thunderstorms developedalong the front with a couple becoming severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Stark County4 SSW New Franklin 09 1647EST 0 0 2.00K 0.00K Hail (1.00)Police reported quarter size hail in Minerva.Stark County4 S New Franklin 09 1650EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Media reported thunderstorm winds brought down numerous large tree branches.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Knox County2 SW Monroe Mills 09 1958EST 0 0 18.00K 0.00K Hail (1.75)Law Enforcement relayed several reports of quarter to golf-ball sized hail in Gambier.Erie County2 NNW Columbus Park 09 2138EST 0 0 15.00K 0.00K Hail (2.00)Trained spotter reported 1 to 2 inch diameter hail at Cedar Point.Sandusky County1 WSW Girton 10 0024EST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)The public reported a measured wind gust to 58 mph.Showers and thunderstorms developed along a stationary front over Northern Ohio from late afternoon into the overnight hours.Some of the thunderstorms became severe producing large hail and damaging winds. The strongest storm produced golf ballsize hail in Knox County. Note: The measured wind gust of 50 knots is equivalent to 58 mph.Ashtabula County1 S Andover 10 1215EST 0 0 11.00K 0.00K Thunderstorm Wind (50EG)Lake County2 E Kirtland Hills1 S Painesville Cncrd ArEmergency manager reported several trees down in the Lake Village Campground near Andover. The media confirmed thedowned trees with some damage to cars in the park.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.10 1446EST1500EST 0 0 3.00K 0.00K Hail (1.00)Trained spotters and the general public reported dime to quarter size hail from Kirtland Hills to the Concord Airpark.Low pressure tracked north across western Ohio on the morning of August 10th. This area of low pressure occluded over LakeErie during the afternoon and pulled a cold front east across northern Ohio. A few thunderstorms became severe, producingstrong thunderstorm winds and hail. Damage was reported in the Lake Village Campground near Andover in AshtabulaCounty when trees fell on cars.Wayne CountyWest Salem 19 1645EST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail was observed.Strong thunderstorms developed over northern Ohio during the afternoon hours of August 19th. A couple of the strongerthunderstorms produced some hail.330

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, NorthTrumbull County3 W Warren 20 1155EST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail was observed.Trumbull CountyLeavittsburg 20 1205EST 0 0 0.00K 0.00K Hail (0.75)Penny sized hail was observed.A cold front moved across northern Ohio causing showers and thunderstorms to develop. A few of the stronger thunderstormsproduced hail.Holmes County3 S Mt Hope 21 1300EST 0 0 0.00K 0.00K Hail (0.75)Penny sized hail was observed.Stark CountyMassillon 21 1410EST 0 0 0.00K 0.00K Hail (0.75)OHIO, NorthwestPenny sized hail was observed.Showers and thunderstorms developed during the afternoon of August 21st. A couple of the stronger thunderstorms producedsome hail.Allen County1 N Spencerville 04 1800EST1801EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Amateur radio operators reported several trees down, including one on Mulberry Street in Spencerville.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Van Wert County1 W Wren 04 1942EST1943EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported numerous tree limbs down in Wren.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Van Wert County2 S Dixon 04 1944EST1945EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated a wind gust to 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Henry County1 N Napoleon 04 2010EST2011EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Emergency management officials reported power lines and numerous tree limbs down across the county.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Allen County1 SW Lima 04 2042EST2043EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)Law enforcement officials reported a large tree being blown down on Lakewood Street.An unstable atmosphere was in place ahead of a strong cold front moving into the region from the west and a weak warm frontlocated across northwestern Indiana. These features combined with a high shear environment supported development ofthunderstorms across northern Illinois. The storms congealed into a QLCS which producing isolated damaging winds and largehail. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.331

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, SoutheastMeigs County2 NNW Salem Center1 N Langsville05 1930EST2230EST 0 0 50.00K 0.00K Flash FloodThe cooperative observer at Salem Center measured 3.88 inches. A spotter near Rutland reported 4 inches of rain. Streamsflooded roads. Leading Creek flooded Routes 124 and 325 near Langsville.Gallia County3 W Vinton3 W Ewington05 1945EST2245EST 0 0 40.00K 0.00K Flash FloodStreams flooded roads. A vehicle was stuck in waters from Shephards White Oak Creek along UpCreek Road near MorganCenter.A line of thunderstorms developed near a cold front and became oriented west to east across southern Meigs and northernGallia Counties during the evening. Repetitive downpours in the muggy air dumped 2 to 4 inches of rain in a few hours. Flashflooding was seen along vulnerable roads and into fields.Perry CountyMainsville 09 1750EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Trees fell onto power lines along Black Gold Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Perry CountyBristol 09 1750EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down along Route 93.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Perry CountyBristol 09 1755EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Trees fell onto power lines along South Street.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Morgan County3 NNW Deavertown 09 1810EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)OHIO, SouthwestLarge branches were blown down, including along Route 84.Thunderstorms formed in Ohio during the afternoon near a weak front. These storms moved through southeast Ohio during theearly evening. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mercer County1 NW Chattanooga 04 2000EST2004EST 0 0 40.00K 0.00K Thunderstorm Wind (55EG)Two barns were destroyed due to damaging thunderstorm winds.A broken line of convection developed well ahead of a cold front during the afternoon and evening hours. Some of these stormsmade it into west central Ohio during the evening. One of these storms was capable of producing damaging thunderstormwinds. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Auglaize County1 E Waynesfield 05 0545EST0549EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)One tree fell and took down a power pole that then hit the corner of a house due to thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Logan County1 WSW Island View 05 0550EST0554EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was downed in the Indian Lake State Park area due to damaging thunderstorm winds.332

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, SouthwestThunderstorms developed just ahead of a vigorous cold front across Indiana and West Central Ohio. Some of these stormsbecame severe. The main threat from these storms was damaging thunderstorm winds. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Franklin County1 SSE Bannon 08 1521EST1525EST 0 0 Hail (0.75)Franklin County1 E Valley Crossing 08 1538EST1542EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Large tree branches were downed along Alum Creek Road near Howard Road due to thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin County1 S Edgewater Park 08 1541EST1545EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was downed due to damaging thunderstorm winds. The tree was blocking a lane of Highway 33 near HamiltonRoad.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin County1 WNW Groveport 08 1548EST1552EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down outside a Groveport city building due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Warren County1 W Lebanon 08 2342EST2346EST 0 0 Hail (0.75)Montgomery County1 SE Kettering 08 2345EST2349EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Limbs and trees were reported down due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Warren County1 ESE Lebanon Warren Co Ar 08 2350EST2354EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees and large branches were downed due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Warren County1 N Oregonia 08 2352EST2356EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Montgomery County1 SSW Centerville 0809Several trees were downed near Oregonia due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.2356EST0000EST 0 0 Hail (0.88)333

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, SouthwestWarren County1 NE Crosswick 08092357EST0001EST 0 0 Hail (0.88)Greene County1 NW Belleview Acres 09 0000EST0004EST 0 0 Hail (0.75)A weak front dropping southward across the Ohio Valley combined with unstable conditions to produce scatteredthunderstorms during the late afternoon through the late evening. Some of these storms even persisted into the early morninghours the next day. The main threats from these storms were damaging thunderstorm winds and large hail.Clermont CountyMilford 09 1604EST1608EST 0 0 Hail (0.88)Clermont County1 N Felicity 09 1641EST1645EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was downed near the intersection of Walnut and Minor Streets due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Brown CountyHamersville 09 1648EST1652EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down on a trailer near State Route 774 due to thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clinton County2 SW New Antioch 09 1649EST1653EST 0 0 Hail (1.75)Brown CountyGeorgetown 09 1652EST1656EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large limb was reported downed due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Highland County1 SSW Belfast 09 1715EST1719EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was downed along State Route 785 due to thunderstorm winds.Adams County1 S Cherry ForkSeamanNote: The estimated wind gust of 50 knots is equivalent to 58 mph.09 1720EST1724EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Trees were downed on Cross and Coon Hill Roads and numerous other locations between Seaman and West Union due tothunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Highland County3 NW Sinking Spg 09 1747EST1751EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was downed along State Route 124 due to damaging thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.334

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OHIO, SouthwestButler County1 WSW Oxford 09 1825EST1829EST 0 0 Hail (1.00)Licking CountyHartford 09 1940EST1944EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Trees and utility wires were downed due to thunderstorm winds.Disorganized convection developed ahead of a shortwave trough during the afternoon and evening hours. Some of these stormsbecame severe with damaging winds and isolated large hail the primary threats. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Franklin County1 NNE Riverlea 19 1608EST1612EST 0 0 Hail (1.00)Franklin CountyWesterville 19 1618EST1622EST 0 0 Hail (1.00)Delaware County1 W Delaware 19 1732EST1736EST 0 0 Hail (1.00)Delaware County1 W Delaware 19 1734EST1738EST 0 0 Hail (0.75)OKLAHOMA, EasternA weak shortwave helped to enhance thunderstorms across central Ohio during the early evening hours. The main threat fromthese storms was large hail.OKZ049-053>076Adair - Cherokee - Choctaw - Craig - Creek - Delaware - Haskell - Latimer - Le Flore - Mayes - McIntosh- Muskogee - Nowata - Okfuskee - Okmulgee - Osage - Ottawa - Pawnee - Pittsburg - Pushmataha - Rogers- Sequoyah - Tulsa - Wagoner - Washington01310000CST2359CST 0 0 0.00K 0.00K DroughtRainfall was typically sporadic for August across eastern Oklahoma. Much of the region received below average rainfall for themonth with areas north of I-44 only receiving between 10 and 25 percent of normal rainfall. Given the prolonged period ofunusually dry weather that the region has experienced, the precipitation that was received in August 2012 did little to improvethe drought, which had slipped into the extreme (D3) category across much of eastern Oklahoma early in the month. Much ofthe area north of I-40 had moved into the exceptional drought (D4) category by the middle of the month. Monetary damageestimates resulting from the drought were not available.OKZ054>074 Adair - Cherokee - Craig - Creek - Delaware - Haskell - Mayes - McIntosh - Muskogee - Nowata -Okfuskee - Okmulgee - Osage - Ottawa - Pawnee - Pittsburg - Rogers - Sequoyah - Tulsa - Wagoner -Washington01040000CST1800CST 0 17 0.00K 0.00K Excessive HeatThis period of excessively hot weather began in late July and continued into early August 2012. Extremely hot temperaturesand high humidity combined to produce dangerously hot weather conditions across much of eastern Oklahoma. Daily heatindex values climbed into the 105 to 115 degree range with little relief occurring at night as temperatures only fell into theupper 70s to mid 80s.OKZ064Creek03081200CST2200CST 0 0 55.0M 0.00K Wildfire335

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, EasternVery hot temperatures, low relative humidity, very dry fuels, and gusty wind resulted in the spread of two large wildfires inCreek County. One of the fires burned 58,500 acres near Mannford and the other burned about 6500 acres near Drumright.Multiple state, tribal, and local agencies responded to these wildfires. Oklahoma Forestry Service's Type II IncidentManagement Team was activated to coordinate the response of all the agencies involved. Up to six Oklahoma Army NationalGuard helicopters were also used to battle the fires. Despite the best efforts of all the agencies involved, these two firesdestroyed 376 homes and damaged 47 others. An unknown number of businesses, outbuildings, and vehicles were destroyed.OKZ073Pittsburg04081200CST2200CST 0 0 0.00K 0.00K WildfireHot temperatures, low relative humidity, very dry fuels, and gusty wind promoted the spread of two large wildfires in PittsburgCounty. Multiple state and local agencies responded to these fires, which consumed over 4000 acres and threatened homes.Nowata County7 E Childers 04 1638CST 0 0 3.00K 0.00K Thunderstorm Wind (65EG)Strong thunderstorm wind blew down a fence and blew several large round hay bales from one field to an adjacent field.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Ottawa CountyPeoria 04 1647CST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down a large tree onto a house.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Nowata County10 E Lenapah 04 1704CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind blew down power poles and damaged the roof of a house and a barn on Highway 10.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Craig County7 NNW Centralia 04 1715CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind blew down large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Delaware County4 N Grove 04 1800CST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees, snapped large tree limbs, damaged the roof of a mobile home, damaged the roofsof several permanent homes, and blew down power lines.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Tulsa County(TUL)Tulsa Intl Arpt 04 1943CST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)The ASOS unit at Tulsa International Airport measured thunderstorm wind gusts to 71 mph.Note: The measured wind gust of 62 knots is equivalent to 71 mph.Ottawa CountyFairland 04 2000CST 0 0 0.00K 0.00K Hail (0.88)Ottawa CountyFairland 04 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind blew down large tree limbs.A slow moving cold front pushed into the region during the late afternoon and evening of August 4th. Thunderstormsdeveloped along and ahead of this front in a very warm and humid air mass that was in place across the region. Damaging windand some hail occurred in the stronger storms. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.336

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, EasternChoctaw CountyHugo 06 1558CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down numerous trees and large tree limbs. A few roads were blocked by these fallen trees.Isolated thunderstorms developed during the afternoon of the 6th over far southeastern Oklahoma. One of the stronger stormsproduced wind damage in Choctaw County. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Pushmataha County1 N Stanley 07 1230CST 0 0 15.00K 0.00K Hail (1.75)Pushmataha County1 N Stanley 07 1230CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind blew down numerous large tree limbs in and around Stanley.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Haskell County1 NW Kinta 07 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down multiple trees.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Pittsburg CountyQuinton 07 1630CST 0 0 0.00K 0.00K Hail (0.88)Pittsburg CountyQuinton 07 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down several trees and large tree limbs.A weak surface boundary provided the focus for afternoon thunderstorm development across southeast Oklahoma on the 7th.The stronger storms produced damaging wind and some hail. Note: The estimated wind gust of 70 knots is equivalent to 81mph.Pittsburg County4 SE Blanco 08 1259CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind blew down large tree limbs.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Le Flore CountyPoteau 08 1315CST 0 0 0.00K 0.00K Thunderstorm Wind (65MG)Thunderstorm wind gusts of 75 mph were measured at the EOC in Poteau.Le Flore County1 NNW Poteau1 SW NeffNote: The measured wind gust of 65 knots is equivalent to 75 mph.08 1329CST1630CST 0 0 0.00K 0.00K Flash FloodSeveral roads were closed in Poteau due to heavy rainfall.Le Flore County1 N Monroe 08 1330CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees onto Highway 83 in Monroe.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Le Flore County1 E Shady Pt 08 1340CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind blew down numerous large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.337

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, EasternCherokee County6 S Qualls 08 1345CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind flipped a boat dock and overturned three pontoon boats. Several large trees were also blown down.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Muskogee County1 SSE Muskogee Davis Arpt 08 1405CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)The ASOS unit at the Muskogee Davis Airport measured 70 mph thunderstorm wind gusts.Note: The measured wind gust of 61 knots is equivalent to 70 mph.Le Flore CountyMuse 08 1410CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Craig CountyWelch 08 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind snapped trees.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Pittsburg County5 W North Mc Alester 08 1642CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind blew down power lines on Highway 270.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Pittsburg CountyMc Alester 08 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down trees and large tree limbs.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Pittsburg County1 S Mc Alester 08 1650CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind destroyed a metal carport.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Pittsburg County1 SE Pittsburg 08 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind snapped large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Choctaw CountyBoswell 08 1903CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind blew down power lines in Boswell.Thunderstorms developed along a weak surface low pressure trough across eastern Oklahoma on the 8th. The stronger stormsproduced damaging wind and localized flash flooding. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.OKZ069Adair10111200CST2200CST 0 0 0.00K 0.00K WildfireHot temperatures, low relative humidity, and gusty wind resulted in the spread of two large wildfires in Adair County. State andlocal agencies responded to these wildfires, which burned more than 400 acres.338

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, EasternOKZ054Osage12 1200CST2200CST 0 0 0.00K 0.00K WildfireHot temperatures, low relative humidity, and gusty wind promoted the spread of a large wildfire near Pawhuska. The Bureau ofIndian Affairs and several local fire departments responded to this wildfire, which consumed over 350 acres and threatenedhomes.Pushmataha CountyDunbar 12 1857CST 0 0 0.00K 0.00K Hail (1.25)Pushmataha CountyMoyers 12 1900CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down large trees.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Muskogee County4 E Porum 12 2105CST 0 0 0.00K 0.00K Hail (1.75)Delaware County1 N Oaks 12 2143CST 0 0 0.00K 0.00K Hail (1.00)Muskogee County3 NW Webbers Falls 12 2148CST 0 0 0.00K 0.00K Hail (0.75)Adair County7 ESE Stilwell 12 2158CST 0 0 0.00K 0.00K Hail (1.25)Craig CountyWhite Oak 12 2200CST 0 0 0.00K 0.00K Hail (1.00)Ottawa County1 SE Wyandotte 12 2208CST 0 0 0.00K 0.00K Hail (1.25)Delaware County2 ENE West Siloam Spgs 12 2235CST 0 0 0.00K 0.00K Hail (1.00)A cold front pushed through eastern Oklahoma during the afternoon of the 12th. Thunderstorms developed along and ahead ofthis boundary, the strongest of which produced large hail and damaging wind gusts.Delaware County2 W Leach 16 1303CST 0 0 0.00K 0.00K Hail (0.75)Delaware County2 W Leach 16 1303CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind blew down large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Delaware County4 N Zena 16 1530CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)Strong thunderstorm wind blew down large trees at Shangri-La Marina.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Delaware CountyZena 16 1615CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)Strong thunderstorm wind blew down a large shed. Large tree limbs were also blown down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.339

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, EasternPawnee County3 NNE Appalachia 16 1623CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind blew down several large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tulsa County1 WNW Broken Arrow 16 1635CST 0 0 0.00K 0.00K Hail (0.75)Tulsa County2 SSW Tulsa Young Arpt 16 1635CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind blew down power lines near E 41st Street South and S 129th East Avenue.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Tulsa County1 SSW Bixby 16 1725CST 0 0 0.00K 0.00K Hail (0.75)Wagoner County2 W Oneta 16 1726CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm wind blew down several trees and a fence near E 101st Street South and the Creek Turnpike.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Creek County1 SE Kellyville 16 1732CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong thunderstorm wind blew down large tree limbs.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tulsa County3 SSE Broken Arrow Arpk 16 1734CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)Strong thunderstorm wind blew down several trees.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Cherokee County1 SSE Hulbert 16 1756CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)OKLAHOMA, Extreme SoutheastStrong thunderstorm wind blew down large tree limbs.Thunderstorms developed along a cold front during the afternoon and evening of the 16th. The stronger storms produceddamaging wind and some hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mccurtain CountyBattiest 07 1355CST 0 0 0.00K 0.00K Hail (1.00)Hail was reported at a grocery store in Battiest, Oklahoma.A large ridge of high pressure in the upper levels of the atmosphere remained stationary across the Texas Hill Country intoNew Mexico. Flow around this high pressure ridge was from the northwest across the Lower Mississippi Valley and this meantthat weak disturbances moved into the region. These disturbances reacted with deep moisture to produce showers andthunderstorms across portions of the region, some of which produced flash flooding and severe weather.Mccurtain County1 W Broken Bow 17 1910CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Mccurtain County2 E Broken Bow 17 1935CST 0 0 10.00K 0.00K Thunderstorm Wind (54EG)Awning was blown off a building two miles east of Broken Bow on Hwy. 70. A large tree was also down in the same area.340

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, Extreme SoutheastOKLAHOMA, PanhandleA weak stationary frontal boundary across Northeast Texas and Northwest Louisiana served as a focus for showers andthunderstorms, some of which produced strong and damaging wind gusts. Note: The estimated wind gust of 54 knots isequivalent to 62 mph.Beaver County3 N Turpin 03 1904CST1905CST 0 0 0.00K 0.00K Hail (0.88)Texas County3 NNE Baker 03 1910CST1911CST 0 0 0.00K 0.00K Hail (1.00)Texas County3 NNE Baker 03 1910CST1911CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)A trained spotter estimated thunderstorm wind gusts downed some oak tree limbs. There were no reports of injuries orfatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Texas County1 SW Hooker 03 2055CST2056CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.Texas County1 SW Hooker 03 2100CST2101CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Severe thunderstorms developed across the central and eastern Oklahoma Panhandle during the evening hours and produceddamaging thunderstorm wind gusts and hail. There were no reports of injuries or fatalities. Note: The measured wind gust of53 knots is equivalent to 61 mph.Beaver County1 SSW Beaver 07 1705CST1706CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)A severe thunderstorm moved across the eastern Oklahoma Panhandle and produced thunderstorm wind gusts. There was nodamage reported and no reports of injuries or fatalities. Note: The measured wind gust of 50 knots is equivalent to 58 mph.OKZ002Texas11 1735CST1736CST 0 0 0.00K 0.00K High WindOKLAHOMA, Western Central and SoutheastDry air in the lower levels of the atmosphere resulted in rain evaporating before reaching the ground, or virga, and also causedsome stronger non-thunderstorm wind gusts aloft to reach the surface. There was no damage reported and no reports of injuriesor fatalities.OKZ004>048-050>052Alfalfa - Atoka - Beckham - Blaine - Bryan - Caddo - Canadian - Carter - Cleveland - Coal - Comanche -Cotton - Custer - Dewey - Ellis - Garfield - Garvin - Grady - Grant - Greer - Harmon - Harper - Hughes -Jackson - Jefferson - Johnston - Kay - Kingfisher - Kiowa - Lincoln - Logan - Love - Major - Marshall -McClain - Murray - Noble - Oklahoma - Payne - Pontotoc - Pottawatomie - Roger Mills - Seminole -Stephens - Tillman - Washita - Woods - Woodward01310000CST2359CST 0 0 DroughtHot and dry conditions continued for much of the month beneath a persistent upper-level ridge over the southern Plains. Thisled to worsening of the already-severe drought.341

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, Western Central and SoutheastOKZ019-025-027-029Cleveland - Grady - Logan - Oklahoma03 1230CST1650CST 1 0 WildfireOKZ004-020-026-030-035Harper - Kiowa - Lincoln - Payne - Pottawatomie04 0900CST2230CST 0 0 WildfireExtreme temperatures coupled with an low humidity, increased winds, and an ongoing drought led to several large wildfiresacross parts of Oklahoma. Some of the fires burned numerous structures. A cold front entered the region late on the 4th,resulting in slightly cooler temperatures and an end to critical fire weather conditions by the 5th.Custer County4 NW Foss Res Dam 06 1450CST 0 0 Thunderstorm Wind (57MG)No damage was reported.Isolated storms developed late in the day across western Oklahoma. With large temperature dewpoint spreads, at least onesevere wind gust was recorded. Note: The measured wind gust of 57 knots is equivalent to 66 mph.Pottawatomie CountyAsher 07 1440CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)No damage was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grady County7 W Minco 07 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)No damage was reported.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Oklahoma County8 W Edmond 07 1650CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)Multiple power poles were downed at the intersection of 164th street and MacArthur boulevard. Some of the power poles fellonto homes, causing light structural damage.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Comanche County2 WSW Lawton 07 1801CST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)At NW 112th and NW Cache Rd., 5-6 power poles were blown down. Roof damage and blown out windows were also reportedat this location.During the late afternoon, a weak stationary front draped east-west across northern Oklahoma resulted in a few pulse storms,which produced damaging wind reports. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Pottawatomie County2 E Macomb 08 1615CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Roof shingles were blown off a house.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Atoka County2 SE Wardville 08 1736CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Small tree limbs were blown down and shingles were damaged.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Atoka CountyStringtown 08 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)No damage was reported.A weak surface trough existed over Oklahoma, and afternoon pulse storms resulted in a few wind damage reports. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.342

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, Western Central and SoutheastAtoka County1 NW Lane 09 1440CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG)The Lane mesonet site reported a wind gust to 69 mph at 3:40pm CDT. No damage was reported.A pulse thunderstorm in Atoka Co. produced severe wind gusts during the afternoon. Note: The measured wind gust of 60knots is equivalent to 69 mph.Marshall County4 NNE Oakland 12 1718CST 0 0 0.00K 0.00K Hail (1.00)No damage was reported.Johnston County2 S Tishomingo 12 1722CST 0 0 0.00K 0.00K Hail (1.25)No damage was reported.Atoka County1 NW Bentley 12 1818CST 0 0 0.00K 0.00K Hail (1.25)No damage was reported.Atoka CountyCaney 12 1820CST 0 0 2.00K 0.00K Hail (2.50)Trees were reported blown down at this location.Johnston County1 N Tishomingo 12 1825CST 0 0 0.00K 0.00K Hail (1.75)No damage was reported.Bryan CountyCalera 12 1825CST 0 5 45.00K 0.00K Thunderstorm Wind (74EG)Widespread damage to trees and power lines reported, with structural damage to homes. One vehicle was blown off the road,and several injuries were also reported.A weak cold front extended from northeast to south-central Oklahoma during the afternoon and evening hours, with a hot andhumid airmass in place to its east. During the late afternoon, a cluster of intense thunderstorms developed over south-centraland southeast Oklahoma and moved toward the east-southeast through the evening. Numerous reports of severe wind gusts andhail were received, along with significant damage and some injuries. Note: The estimated wind gust of 74 knots is equivalentto 85 mph.Bryan CountyCartwright 12 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)The winds downed large tree limbs, damaged metal outbuilding and roofs. No damage estimates were available.A stationary front was draped near the Red River during the afternoon and evening. Around mid-afternoon, a cluster ofthunderstorms developed north of the front, over south-central Oklahoma into northwest Texas. This cluster moved eastwardthrough the late afternoon and evening, and one damaging wind gust was reported in Bryan Co. Note: The estimated wind gustof 56 knots is equivalent to 64 mph.Bryan CountyAchille 12 1850CST 0 0 0.00K 0.00K Hail (1.25)No damage was reported.Bryan CountyAchille 12 1850CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)Tree limbs up to 10 inches in diameter were downed, and a fence was damaged.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Bryan County3 SSE Kemp 12 1907CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)No damage was reported.343

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, Western Central and SoutheastA weak cold front extended from northeast to south-central Oklahoma during the afternoon and evening hours, with a hot andhumid airmass in place to its east. During the late afternoon, a cluster of intense thunderstorms developed over south-centraland southeast Oklahoma and moved toward the east-southeast through the evening. Numerous reports of severe wind gusts andhail were received, along with significant damage and some injuries. Note: The estimated wind gust of 61 knots is equivalentto 70 mph.Bryan County1 W Cartwright 14 1825CST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)Large tree limbs were reported down.A stationary front was draped near the Red River during the afternoon and evening. Around mid-afternoon, a cluster ofthunderstorms developed north of the front, over south-central Oklahoma into northwest Texas. This cluster moved eastwardthrough the late afternoon and evening, and one damaging wind gust was reported in Bryan Co. Note: The estimated wind gustof 56 knots is equivalent to 64 mph.Comanche County1 WSW Mt Scott 25 1525CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)The Medicine Park mesonet station recorded a gust to 60 mph.Note: The measured wind gust of 52 knots is equivalent to 60 mph.Caddo County5 S Anadarko 25 1610CST 0 0 0.20K 0.00K Thunderstorm Wind (52EG)Numerous tree limbs around 2 inches in diameter were downed. Estimated gusts of 50-60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Garfield CountyWaukomis 25 1630CST 0 0 18.00K 0.00K Thunderstorm Wind (56EG)Numerous trees and some power lines were reported down, along with some structural damage.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Roger Mills County3 N Dempsey 25 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Public estimated wind gusts of 60 mph. No damage reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Garfield CountyWaukomis 25 1640CST 0 0 Thunderstorm Wind (56EG)Emergency management reported several trees were downed. Light structural damage also occurred and several power lineswere blown down. No damage estimates were available.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Kingfisher County4 ESE Hennessey 25 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Public estimated wind gusts of 70 mph. No damage reported.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Kingfisher County9 N Cashion 25 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Observer estimated wind gusts of 60 mph. No damage reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Washita CountySentinel 25 1940CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Power lines were reported down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.344

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OKLAHOMA, Western Central and SoutheastWashita County2 E Dill City 25 1950CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)OREGON, Central and EastTrees were reported down.A dryline stretched along the border between Oklahoma and the Texas Panhandle, with hot and very humid air in place to itseast. Numerous thunderstorms developed throughout the afternoon and evening across much of central and western Oklahoma,with scattered reports of severe wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.ORZ509East Slopes Of The Oregon Cascades04311800PST2359PST 0 0 0.00K 0.00K WildfireDeschutes County5 NNW Lava Butte 05 1750PST 0 0 0.00K 0.00K Hail (1.00)Deschutes County4 SSW Bend 05 1800PST 0 0 0.00K 0.00K Hail (1.00)Brief large hail occurred during heavy rainfall of 1.26 inches over a 2 hour period.Deschutes County1 SSW Sisters 05 1900PST 0 0 5.00K 0.00K LightningLightning struck a log home and started a fire in the attic.Deschutes County5 E Sisters 05 1900PST 0 0 0.10K 0.00K LightningLightning struck a tree and started a small grass fire in a residential area.Jefferson County5 SW Opal City 05 1929PST 0 0 0.50K 0.00K LightningLightning causes a power outage in the Crooked River Ranch subdivision.Deschutes County7 NW Sisters 05 1950PST 0 0 20.00K 0.00K LightningLightning started a house fire in an attic at Black Butte Ranch.Deschutes County1 W Bend 05 1957PST 0 0 75.00K 0.00K LightningLightning started a fire at the Presbyterian Church on 9th Street.ORZ509East Slopes Of The Oregon Cascades06091122PST1700PST 0 0 WildfireAn upper level disturbance moving across central Oregon into a hot and unstable atmosphere brought locally severethunderstorms with large hail, heavy rainfall, and lightning that started wildfires.The Waterfalls2 Fire was started by lightning on August 4 about 22 miles west of Warm Springs. It burned 12, 265 acresbefore containment on September 15.The Geneva Fire was started by lightning and burned 1337 acres of juniper, sage, and grass 8.5 miles west of Culver betweenAugust 6 and 9.345

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OREGON, Central and EastORZ050Wallowa20311530PST2359PST 0 0 0.00K 0.00K WildfireLightning started the Cache Creek Wildfire on August 20 in far northeast Oregon in the Hells Canyon Recreation area, CacheCreek area. It burned 73,697 acres of grass and timber and a few structures before containment September 26.ORZ506Ochoco-John Day Highlands28311300PST2359PST 0 0 0.00K 0.00K WildfireOREGON, SouthwestThe Parish Cabin Fire burned 6481 acres 12 miles northeast of Seneca, between August 28 and September 12. It was humancaused.Lake CountySilver Lake 05 1620PST1640PST 0 0 0.00K 0.00K Thunderstorm Wind (64EG)A spotter SSW Silver Lake reported an estimated gust to 74 mph associated with a nearby thunderstorm.Note: The estimated wind gust of 64 knots is equivalent to 74 mph.Jackson County4 SW Steamboat 05 1639PST1839PST 0 0 0.00K 0.00K Thunderstorm Wind (65MG)The Squaw Peak RAWS recorded a gust to 53 mph at 1739 PST and a gust to 75 mph at 1839 PST. These gusts wereassociated with the outflow from a nearby storm.Note: The measured wind gust of 65 knots is equivalent to 75 mph.Josephine County15 SSE Williams 05 1639PST1839PST 0 0 0.00K 0.00K Thunderstorm Wind (65MG)The Squaw Peak RAWS just over the Jackson County line recorded a gust to 53 mph at 1739 PST and a gust to 75 mph at 1839PST. These gusts were associated with the outflow from a nearby storm. Since the storm itself was over Josephine County, itis assumed that gusts meeting severe thunderstorm criteria occurred there as well.Several thunderstorms developed across the area on this afternoon and evening...and a few of them achieved severe status.Note: The measured wind gust of 65 knots is equivalent to 75 mph.ORZ031Central & Eastern Lake06281517PST1200PST 0 0 0.00K 0.00K WildfireThe Barry Point wildfire was started by lightning on 08/06/12. It was contained by 08/28/12.14311500PST2359PST 0 0 0.00K 0.00K WildfireThe Butte wildfire started on 08/14/12 and was not contained by the end of August.ORZ030-031Central & Eastern Lake - Northern & Eastern Klamath & Western Lake24 0200PST0800PST 0 0 0.00K 0.00K Frost/FreezeClear skies and long nights allowed freezing temperature to develop in some parts of south central Oregon.27 0300PST0800PST 0 0 0.00K 0.00K Frost/Freeze346

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012OREGON, SouthwestClear skies and long nights allowed freezing temperature to develop in some parts of south central Oregon.29 0300PST0800PST 0 0 0.00K 0.00K Frost/FreezeClear skies and long nights allowed freezing temperature to develop in some parts of south central Oregon.30 0200PST0800PST 0 0 0.00K 0.00K Frost/FreezeClear skies and long nights allowed freezing temperature to develop in some parts of south central Oregon.PENNSYLVANIA, CentralAdams County2 SE Hampton 03 1300EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down numerous trees across Green Ridge Road just south of Hampton.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin CountyCulbertson 03 1310EST 0 0 2.50K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down a few trees west of Shippensburg along Cumberland Highway andnear Orrstown.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin County1 W Pinola 03 1313EST 0 0 Hail (0.88)Adams County2 N Berlin Jct 03 1315EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down large branches and utility wires near Abbottstown.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York County1 S Cly 03 1405EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down several trees just west of York Haven.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York County1 SSE Yocumtown 03 1420EST 0 0 Hail (0.88)York CountyEtters 03 1420EST 0 0 Hail (1.00)Trained spotter reported quarter size hail in Etters.York CountyEtters 03 1420EST 0 0 5.00K Thunderstorm Wind (71MG)Thunderstorm winds estimated near 60 mph knocked down multiple trees and utility wires in Goldsboro. A trained spottermeasured 82 mph wind gust.Severe thunderstorms produced isolated wind damage and hail across portions of the lower Susquehanna Valley during theafternoon. Note: The measured wind gust of 71 knots is equivalent to 82 mph.347

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, CentralYork County1 W Wellsville 04 1145EST 0 0 5.00K 0.00K Thunderstorm Wind (61MG)Thunderstorm winds measured around 70 mph knocked down several large limbs in Wellsville.Note: The measured wind gust of 61 knots is equivalent to 70 mph.York County1 SSW Dillsburg 04 1200EST 0 0 Hail (1.25)Cumberland County1 WNW Wertzville 04 1330EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down several trees and utility wires in Wertzville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York County1 NW York 04 1408EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down numerous trees and utility wires in and around the city of York.York County1 W North York1 NNE West YorkNote: The estimated wind gust of 50 knots is equivalent to 58 mph.04 1415EST1521EST 0 0 0.00K 0.00K Flash FloodTorrential thunderstorm downpours produced an inch of rainfall in 20 minutes in York. This resulted in significant urbanflooding with numerous flooded streets.Northumberland County1 ENE Turbotville 04 1440EST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm winds estimated near 60 mph flattened the Turbotville Train Station. Several large branches were also downalong SR 44 between McEwensville and Turbotville. This report was relayed by the Turbotville Borough Heritage Society whohad been overseeing the Turbotville Train Station Relocation Project for approximately 2.5 years.Severe thunderstorms produced isolated wind damage, large hail and flash flooding across portions of the mid and lowerSusquehanna Valley during the afternoon. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Severe thunderstorm winds flattened the Turbotville Train Station in Northumberland County. Photo courtesyof the Turbotville Borough Heritage Society.348

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, CentralFranklin County1 WSW St Thomas 05 1337EST 0 0 7.50K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph snapped-off a power pole on Campbells Run Road west of Chambersburg in St.Thomas Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin County2 NE Cashtown 05 1340EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in South Hamilton Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York CountyDover 05 1450EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked a tree down on a house in Dover Township. The extent of the structuraldamage was unknown.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dauphin County1 E Paxtonia 05 1500EST 0 0 2.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph ripped siding off a home in Paxtonia.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York County1 NE West York 05 1500EST 0 1 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees on Carlisle Avenue in York. One tree fell on a motorcyclistwho sustained minor injuries.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dauphin CountyHershey 05 1513EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees in Derry Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lancaster County1 E Blossom Hill 05 1541EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down several trees in Manheim Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lancaster County1 N Clay 05 1546EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in Clay Township.Mckean County1 NW East Kane2 WSW ColegroveSevere thunderstorms produced several reports of wind damage across portions of the lower Susquehanna Valley during theafternoon. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.09 1123EST1145EST 0 0 2.50K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees from Kane to Clermont.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.349

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, CentralPotter County2 SSE Hebron Center 09 1240EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along SR 44 in Hebron Township a few milesnorth of Coudersport.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Somerset CountyMarkleton 09 1315EST 0 0 Hail (0.88)Blair CountyMartinsburg 09 1330EST 0 0 Hail (0.75)Lycoming County1 SE Waterville 09 1600EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees along SR 44 in Waterville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lycoming County1 W Powys 09 1622EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down a 100-200 yard swath of trees in Powys.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Snyder County1 W Shamokin Dam 09 1645EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down multiple trees in Shamokin Dam. The downed trees closed severalroads in a residential community.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dauphin County1 W Grantville 09 1655EST 0 0 Hail (0.88)Mckean County2 ENE Duke Center 09 1910EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees a few miles west of Eldred in Otto Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lebanon County1 N Palmyra 09 1945EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees along Lexington Drive near Palmyra.Severe thunderstorms produced isolated wind damage and hail across portions of the central Pennsylvania during the latemorning and afternoon. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Somerset CountyShanksville 14 1400EST 0 1 0.00K 0.00K LightningAn 18-year-old western Pennsylvania man survived a lightning strike while standing next to his kitchen stove. Cody Sines, ofShanksville, was making dinner after work when a big blue ball of flame came at him as he grabbed the handle of his electricstove. Sines later learned that lightning hit a tree his back yard before traveling through the ground and into his house. He wasknocked unconscious but survived the lightning encounter.Lancaster CountyElizabethtown 14 1800EST 0 0 Hail (0.88)350

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, CentralCentre County1 NW State College 14 1830EST 0 0 Hail (0.75)Dauphin County1 W Grantville 14 1835EST 0 0 Hail (0.88)Juniata CountyOakland Mills 14 1955EST 0 0 Hail (0.88)Juniata County1 E Mifflin 14 2000EST 0 0 5.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down numerous trees in and around Mifflintown.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland County1 W Carlisle 14 2012EST 0 0 Hail (0.88)Cumberland County2 NNW Hunters Run1 WSW Plainfield14152130EST0015EST 0 0 0.00K 0.00K Flash FloodTorrential thunderstorm rains of 1-2 inches in less than an hour produced numerous reports of flash flooding across the easternhalf of Cumberland County. Flash flooding closed SR 42 near Mt. Holly Springs, South Front and Market Streets in Lemoyne,SR 11 in Silver Springs Township and the 400 block of Front Street in Hampden Township.A frontal system moved east from the Ohio Valley and triggered numerous strong to severe thunderstorms during the afternoonand evening hours. A few storms produced isolated reports of large hail and damaging winds. A cluster of trainingthunderstorms produced heavy rainfall across portions of the lower Susquehanna Valley. Localized flash flooding occurredover eastern Cumberland County where radar and rain gage reports indicated 1-2 inches fell in less than one hour.Franklin CountyMilnor2 WNW Kauffman26 1256EST1307EST 5.56 100 0 0 10.00K 1.50K Tornado (EF0)An EF0 tornado touched down around 1356pm EDT along the 13000 block of Williamsport Pike in Antrim township;approximately 1.5 miles south-southwest of Greencastle. Damage at this location consisted of roofing material blown off of abarn and a toppled farm wagon. The EF0 tornado skipped northward on the west-side of Greencastle, knocking down trees andlimbs along Williamson Road. A corn field was flattened just beyond the Greencastle city limits near Craig Road. The EF0tornado continued to skip northward producing sporadic damage and finally lifted up around 1407pm EDT near the intersectionof Williamson and Guitner Roads, where it removed a portion of a house roof. The estimated path length and width wasapproximately 6 miles long and 100 yards at its widest point. The estimated maximum wind speed was 85 mph, rating thetornado at the top-end of the EF0 wind speed range.A slow-moving upper level circulation moved from western Virgina east-northeast into the Chesapeake Bay/Delmarva region.This system tapped into a narrow axis of deep moisture and instability to trigger scattered thunderstorms across northernMaryland and south-central Pennsylvania. Storms moved north-northwest as they crossed the Mason-Dixon line. Wind shearprofiles were marginally favorable for rotating low-topped storms. An EF0 tornado was confirmed near Greencastle in southcentralFranklin County.Cumberland County1 SW Plainfield 26 1527EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees along Greason Road between Newville and Carlisle.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cumberland CountyDoubling Gap 26 1535EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Thunderstorm winds estimated near 60 mph knocked down trees along SR 233 near the Cumberland/Perry County border.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.351

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, CentralCumberland CountyShippensburgLees Xrds26 1600EST1815EST 0 0 0.00K 0.00K Flash FloodPENNSYLVANIA, EastTorrential thunderstorm rains produced localized flash flooding in and around the Shippensburg area. Several roads were closedand impassable at times including Walnut Bottom Road.A slow-moving upper level circulation moved from western Virgina east-northeast into the Chesapeake Bay/Delmarva region.This system tapped into a narrow axis of deep moisture and instability to trigger scattered thunderstorms across northernMaryland and south-central Pennsylvania. Heavy thunderstorm rains produced localized flash flooding. Storms moved northnorthwestas they crossed the Mason-Dixon line. Wind shear profiles were marginally favorable for isolated damaging windgusts.Bucks CountyHartsville 01 1515EST1715EST 0 0 0.00K 0.00K Flash FloodSeveral roads were reported to be flooded due to heavy rains of 2 to 4 inches.Philadelphia County1 SSW Bustleton1 W Torresdale01 1645EST1745EST 0 0 0.00K 0.00K Flash FloodThe Pennypack Creek at the Rhawn Street Bridge rose rapidly to 7.0 feet, exceeding flood stage and spilling over its banks.Poor drainage flooding also occurred within Philadelphia.The combination of a weak cold front and a mid level disturbance, along with an increasingly hot and humid air mass, triggeredstrong to severe thunderstorms, which produced heavy rain and flooding in Pennsylvania. Doppler Radar storm total estimatesreached between 3 and 6 inches.Delaware County1 NNW Marcus Hook 03 1615EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down numerous trees and wires in Linwood (Lower Chichester Township).Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bucks County1 ESE Langhorne Buehl Arpt 03 1730EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Middletown Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bucks County1 W Fairless 03 1739EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Falls Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bucks County1 ESE Kingswood Park 03 1750EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs and wires in Bristol Township.A lee side trof helped trigger scattered strong to isolated severe thunderstorms across southeastern Pennsylvania during the lateafternoon and early evening of the 3rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery CountyAbington 04 1245EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees and wires in Abington Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.352

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, EastMontgomery County1 SSW Hallowell1 W (NXX)Nas Willow Grov04 1300EST1305EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees and wires in Horsham Township. In addition, large tree limbs were knockeddown along Maple Avenue and a fence was blown over along Pennsylvania State Route 611.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Northampton CountyEaston 04 1438EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees and wires in Easton.Scattered pulse type strong to severe thunderstorms affected mainly the far eastern portions of Pennsylvania during theafternoon of the 4th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carbon County2 SSE Beaver Meadows 05 1532EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down trees onto wires in Packer Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Carbon CountyWeatherly 05 1535EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm also knocked down trees onto wires in Weatherly Borough.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Monroe County2 WNW Long Pond 05 1604EST 1 7 0.00K 0.00K LightningA lightning strike killed a 41-year-old man in the parking lot of the Pocono Raceway (Long Pond in Tunkhannock Township)as he was packing items into a minivan. Eight other spectators were injured and hospitalized by the same stroke. One of themwas critically injured, but survived. The other seven were treated and released. M41OUBerks CountyFleetwood 05 1610EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees, wires and poles in Fleetwood Borough.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Berks CountyReading 05 1613EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs in Reading. About 15 minutes earlier, a wind gust of 51 mph wasrecorded at Reading Regional Airport.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Berks County1 E Hancock 05 1619EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs in Longswamp Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lehigh CountyIronton 05 1638EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a couple of trees between Schnecksville and Catasauqua in Lehigh County.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.353

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, EastMontgomery County1 S Obelisk 05 1640EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down several trees in Limerick Township. Downed trees blocked Neiffer Road south ofSwamp Creek Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery CountyLimerick 05 1645EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a couple of trees that closed North Limerick Road near West Ridge Pike in LimerickTownship.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery CountyRoyersford 05 1645EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Northampton County1 E Lerchs1 NW EastonA severe thunderstorm knocked down a couple of trees and tree limbs at the intersection of 4th and Gay Streets in UpperProvidence Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.05 1647EST1700EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm caused scattered wind damage (downed trees and wires) across the central third of NorthamptonCounty.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery CountyGraterford 05 1651EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down large tree limbs in Graterford in Perkiomen Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Monroe County2 WNW Long Pond 05 1735EST 0 1 0.00K 0.00K LightningA second lightning strike injured another Pocono Raceway (Long Pond in Tunkhannock Township) fan.A series of strong to severe thunderstorms that culminated with a squall late in the afternoon affected Eastern Pennsylvania onthe 5th. Lightning caused one death and nine injuries at Pocono Raceway in Monroe County that afternoon.Lehigh County1 ENE Summit Lawn 09 1230EST 0 0 100.00K 0.00K LightningA lightning strike and subsequent three alarm fire badly damaged a home in Salisbury Township. No injuries were reported.Northampton County1 WSW Westgate Hills 09 1347EST 0 1 0.00K 0.00K LightningLightning struck and injured one person at the Drivers License Center In Hanover Township.Chester CountyElverson 09 1411EST 0 0 0.00K 0.00K Hail (0.88)A strong thunderstorm dropped nickel size hail in Elverson.Montgomery CountyPottstown 09 1430EST 0 0 0.00K 0.00K Hail (0.75)A strong thunderstorm dropped penny size hail in Pottstown at 3:30 pm EDT. This storm also produced a 52 mph wind gust atthe Pottstown Municipal Airport at 3:15 pm EDT.354

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, EastChester CountyCoventryville 09 1436EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in South Coventry Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bucks County1 E Neshaminy 09 1450EST 0 0 10.00K 0.00K LightningA lightning strike and ensuing fire damaged the roof of a two story home on Log College Drive in Warminster Township. Thehomeowner escaped without any injuries.Bucks CountyNewtown 09 1545EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An intensifying thunderstorm knocked down a few trees in Newtown.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Berks County1 S Rehrersburg 09 1830EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down trees and wires throughout Tulpehocken Township.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Berks County1 ESE Shartlesville 09 1853EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a large tree in Upper Bern Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Berks CountyMaiden Creek 09 1930EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A severe thunderstorm knocked down a large tree in Maiden Creek.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Berks County1 S New Jerusalem 09 2000EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Strong wind gusts produced by a severe thunderstorm knocked down electric wires in Rockland Township.The combination of a weak cold front and upper air disturbance triggered scattered strong to severe thunderstorms, whichproduced damaging winds, small hail, and areas of heavy rain across portions of eastern Pennsylvania during the afternoon andevening of the 9th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Chester County2 N Downingtown Meml ArpUwchland11 1900EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A severe thunderstorm knocked down a few trees in central Chester County in Caln and Uwchlan Townships.PENNSYLVANIA, NorthwestA series of thunderstorms preceding an approaching cold front moved through southeastern Pennsylvania during the lateafternoon and evening of the 11th, one of which was severe in Chester County. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Crawford County1 N Conneautville 08 1454EST 0 0 0.00K 0.00K Hail (0.75)Public reported penny size hail.355

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, NorthwestCrawford County1 SE Linesville 08 1511EST 0 0 1.00K 0.00K Hail (1.00)A pilot reported hail to quarter size falling from the storm.Crawford County1 SE Linesville 08 1511EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)The Post Office reported 7 to 8 trees down from Linesville Rd. to Conneautville Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Crawford CountyCochranton 08 1555EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Law enforcement reported a couple trees down in Cochranton.A cold front moved south across the area during the afternoon of August 8th. Scattered showers and thunderstorms developedalong the front with an isolated severe storm in Northwest Pennsylvania. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Crawford County1 W Fredericksburg 09 1810EST 0 0 2.00K 0.00K Hail (1.00)Trained spotter reported that quarter sized hail was observed for 30 seconds.Crawford County1 SE Linesville 09 1911EST 0 0 6.00K 0.00K Thunderstorm Wind (50EG)County officials reported several trees down near Linesville and dime sized hail.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Crawford County1 N Conneautville 09 1920EST 0 0 6.00K 0.00K Thunderstorm Wind (50EG)PENNSYLVANIA, WestCounty officials reported several trees down near Conneautvile and dime sized hail.Showers and thunderstorms developed along a stationary front over Northwest Pennsylvania during the late afternoon andevening hours. Some of the thunderstorms became severe producing large hail and damaging winds. Note: The estimated windgust of 50 knots is equivalent to 58 mph.Lawrence County2 ENE Enon 08 1823EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)The public reported multiple trees and power lines down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lawrence County2 NW Mountair 08 1825EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Fire rescue reported trees and wires down throughout northern Beaver Township.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allegheny County1 SE Churchill 08 2037EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)State official reported multiple trees and power lines down blocking PA Route 48.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allegheny County1 N Wilkins Township 08 2052EST 0 0 0.00K 0.00K Hail (0.75)Showers and thunderstorms, which developed along a lake breeze, moved southward with a slowly moving cold front in theafternoon on the 8th.356

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, WestFayette County1 SE White Bridge 09 1220EST 0 0 0.00K 0.00K Hail (0.88)Fayette County1 E Mill Run 09 1236EST 0 0 0.00K 0.00K Hail (0.88)Lawrence County1 ESE Pulaski 09 1635EST 0 0 0.00K 0.00K Hail (0.75)Mercer County1 SW West Middlesex 09 1645EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)County official reported multiple trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mercer County1 E Mermitage 09 1645EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)County official reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mercer County1 SE Fredonia 09 1655EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Trained spotter reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mercer County3 W Mercer 09 1710EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Trained spotter reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango CountyPolk Jct 09 1745EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Emergency management reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango CountyPolk Jct 09 1750EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Emergency management reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango County1 SE Franklin 09 1800EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Emergency management reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango County1 E Seneca 09 1804EST 0 0 0.00K 0.00K Hail (1.00)Venango County1 W Cranberry 09 1804EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Trained spotter reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango County1 E Oil City 09 1809EST 0 0 0.00K 0.00K Hail (1.00)357

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PENNSYLVANIA, WestLawrence County1 SW Mc Oaslin 09 1809EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Broadcast media reported trees and power lines down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lawrence County2 SE Mc Oaslin 09 1810EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Emergency manager reported a tree on a mobile home. No injuries were reported.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lawrence County2 E New Castle 09 1814EST 0 0 0.00K 0.00K Hail (1.00)Forest County1 E Tionesta 09 1823EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Emergency management reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Venango County3 SW Venus 09 1940EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington County1 NW Joffre 09 1954EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allegheny County1 WSW Fayetteville 09 2004EST 0 0 0.25K 0.00K Thunderstorm Wind (50EG)RHODE ISLANDTrained spotter reported large branches down.Showers and thunderstorms, some of which became severe, developed along a stalled boundary of the region on the 9th. Thesestorms, supported by an upper level shortwave and increased instability, moved along the boundary and produced wind damageand hail to portions of eastern Ohio, northern West Virginia, and western Pennsylvania. Note: The estimated wind gust of 50knots is equivalent to 58 mph.Washington County1 S Block Is 10 1454EST1500EST 3.83 20 0 0 50.00K 0.00K Tornado (EF0)A tornadic waterspout over the waters south of Block Island moved northward onto land as a tornado over the southern portionof the island a little before 4pm. On Lakeside Drive, it downed several trees, deck furniture was thrown 100 yards away, andscreens were blown off a house. An anemometer at a house on Sand's Pond Road was damaged. Fifty trees were blown downon a farm. Several trees in New Shoreham were downed and there was lawn damage occurred on Chapel Street. Farther to thenortheast, there were eyewitness reports of a rotating column that moved steadily across a narrow region just to the west ofJerry's Point. A path of flattened brush 50 feet wide was reported there.Washington CountyScarborough Hills 10 1502EST1602EST 0 0 0.00K 0.00K FloodRoute 108 was flooded with one foot of water in the Galilee section of Narragansett.358

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012RHODE ISLANDWashington County1 N Narragansett Pier 10 1510EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Umbrellas in wooden stands were snapped in two and tables were blown over by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington County1 E Westerly 10 1530EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)A large tree limb was downed by thunderstorm winds onto the deck of a house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington CountyHopkinton 10 1535EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)A large limb and wires were downed by thunderstorm winds in the Ashaway section.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Kent County1 E Apponaug 10 1600EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)Wires were downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Kent County1 NE Greenwood 10 1607EST1707EST 0 0 15.00K 0.00K FloodPost Road was flooded with cars stuck in the floodwaters.Kent County2 SW Coventry Center 10 1609EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)A large limb on Cove Road was downed onto a house, damaging the roof.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Kent County1 S River Pt 10 1612EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)A large tree on Dogwood Drive was downed by thunderstorm winds.Note: The estimated wind gust of 40 knots is equivalent to 46 mph.Kent County1 ESE East Greenwich 10 1617EST1717EST 0 0 5.00K 0.00K Flash FloodA car was stuck in flood waters on Old Forge Road near the train tracks. The left lane of Route 4 near exit 6 was under water.The high speed lane on Route 4 also was flooded three miles before the road joins Interstate 95 North.Providence County2 NNE Valley Falls1 NNW Oak Lawn10 1630EST1730EST 0 0 0.00K 0.00K Flash FloodSeveral streets in Cranston flooded including Oaklawn and Fletcher Avenues, and Wilbur Street. Gano Street in Providenceflooded over the curbs. In Pawtucket, Central Avenue flooded over the curbs. Warren Avenue near Interstate 195 in EastProvidence was closed due to flooding. At Warren Avenue and Catamore Boulevard, water was flowing up to one and a halffeet deep.Bristol CountyBarrington 10 1630EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)An amateur weather radio operator recorded wind gusts to 65 mph on their home weather station. No damage was reported.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.359

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012RHODE ISLANDBristol County1 NNW Warren1 NNE Barrington10 1631EST1731EST 0 0 0.00K 0.00K FloodSeveral streets in downtown Warren were flooded over the curbs. Route 114 on the Warren/Barrington line flooded with oneand a half feet of water.A series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes. These provideda focus for showers and thunderstorms to develop across southern New England. Southerly winds drew tropical moisture overthe area, resulting in very heavy rain in showers and thunderstorms that developed. In addition, strong winds in the upperlevels and 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms.Providence County1 SW Olneyville 15 0708EST0808EST 0 0 15.00K 0.00K FloodRoute 10 Northbound was flooded with cars stranded at Exit 6.Newport County1 NNE Sakonnet1 S Pottersville15 0844EST0944EST 0 0 0.00K 0.00K FloodSeveral roads were flooded with the amount of water overwhelming storm drains.Showers and thunderstorms developed in a warm, moist atmosphere. Cold air aloft contributed to an unstable environmentresulting in severe thunderstorms. Moisture was such that rainfall rates were high enough to result in flash flooding.SOUTH CAROLINA, CentralSumter CountyShiloh 01 0145EST 0 0 1.30M 0.00K LightningThe Item reported that the Shiloh United Methodist Church, built in 1831, was destroyed by fire. Damage estimates were at 1.3million dollars.Corey Davis of The Item Newspaper snapped this photo of what remains of the Shiloh United Methodist Churchwhich was built in 1831.Lexington County3 SSW Red Bank 02 1255EST 0 0 0.00K 0.00K Hail (1.00)Public reported quarter size hail on Brindleridge Road.360

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, CentralLexington County2 NW Edmund 02 1259EST1300EST 0 0 0.00K 0.00K Hail (1.00)NWS employee reported hail the size of quarters falling at his residence.Barnwell County3 WSW Healing Spgs 02 1304EST1305EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down near the intersection of Ebenezer and Healing Springs Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Barnwell County1 N Barnwell Co Arpt 02 1330EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported a few trees down near Hwy 37 northeast of Barnwell.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Orangeburg County3 SW Elloree 02 1430EST 0 0 0.00K 0.00K Hail (1.00)Sheriff rerported quarter size hail off of Old State Road.Orangeburg County1 E Elloree 02 1452EST1455EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)DOT reported a tree down at Dantzler and Cleveland Streets in Elloree.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Orangeburg County2 NE Elloree 02 1452EST1455EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)DOT reported trees down at Tee Vee and Racetrack Roads northeast of Elloree.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Calhoun County8 SE Lone Star 02 1505EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Park Service reported trees down in the backyard of the Ranger Home Residence.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Orangeburg County2 NW Santee 02 1510EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Park Ranger reported large branches down in Santee State Park.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sumter County4 ENE Shannontown 02 1550EST 0 0 Hail (1.50)Youngs Food Store on Hwy 378 east of Sumter reported 1.5 inch hail.Sumter County1 N Shiloh 02 1631EST1635EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down on Pudding Swamp Road and Woodsbay Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.361

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, CentralRichland County1 S Killian 02 1647EST1650EST 0 0 0.00K 0.00K Hail (1.00)DHEC employee reported quarter size hail at Farrow and Hardscrabble Roads.Richland County1 NW Dentsville 02 1655EST 0 0 0.00K 0.00K Hail (1.00)Public reported quarter size hail in Dentsville.Richland County1 ESE Killian 02 1655EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Highway Patrol reported trees down on Brickyard Road.Scattered severe thunderstorms produced some large hail and damaging winds around the Midlands of SC. Note: Theestimated wind gust of 55 knots is equivalent to 63 mph.Fairfield County1 ESE Bucklick 03 2015EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)EM reported trees down on River Road at Taylor Creek Bridge.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Fairfield County1 E Winnsboro 03 2215EST 0 0 30.00K 0.00K Thunderstorm Wind (55EG)County dispatch reported numerous trees down in Winnsboro and a tree on a home.An isolated severe thunderstorm over Fairfield County produced some wind damage. Note: The estimated wind gust of 55knots is equivalent to 63 mph.Newberry CountyChappells 09 1757EST1800EST 0 0 40.00K 0.00K Thunderstorm Wind (50EG)Sheriff reported a tree down on a hous in Chappells. Considerable roof damage occurred with no injuries.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Newberry County1 SW Chappells 09 1757EST1800EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees and powerlines down at SC Hwy 34 and Old Landfill Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Barnwell County6 N Robbins 09 1855EST1900EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)SRS dispatch reported trees down on SC Hwy 125 and on Savannah River Site Road F.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Saluda CountySaluda 09 1918EST1920EST 0 0 6.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down on Mariachi Drive, Old Chappells Ferry Road, and on Henley Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.362

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, CentralRichland County1 NW Olympia Mills 09 1920EST2020EST 0 0 1.00K 0.00K Flash FloodFlash flooding from heavy rains occurred below the USC soccer stadium at the intersection of Main and Whaley Streets. Waterdepths rose to 2-3 feet at the intersection.USGS cameras show flash flooding below the USC soccer stadium at the intersection of Main and WhaleyStreets. Water depths rose to 2-3 feet at the intersection.Lexington County1 N (CAE)Columbia Metro 09 1920EST2020EST 0 0 0.00K 0.00K Heavy RainColumbia Metropolitan Airport recorded 2.16 inches of rain in an hour. Most of the rain fell between 820 PM AND 920 PM.Lexington County3 NW Arthur 09 1950EST1954EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down on Mineral Springs Road at Shoal Creek Road.Scattered severe thunderstorms produced mainly wind damage and some hail over the Midlads of South Carolina taking downtrees and power lines. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Sumter County1 NE Pinewood 17 1426EST1430EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Highway Patrol reported trees down on Hampton Street in Pinewood.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Lee County1 W Woodroe 17 1450EST1454EST 0 0 14.00K 0.00K Thunderstorm Wind (65EG)A farmer reported a microburst bent and twisted rebar, blew a cotton wagon over, and moved a portable barn a few inches offthe foundation in Woodrow, SC. Path of the damage was about 100 yds long.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.363

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, CentralClarendon County3 NNE Rimini 17 1452EST1456EST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)Highway Patrol reported powerlines down near Pinewood.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Clarendon County4 NE Rimini 17 1455EST1459EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)Highway Patrol reported a tree on a house on Bacon Hill Road in Pinewood.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clarendon County4 NE Rimini 17 1455EST1459EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)Highway Patrol reported a tree on a house on Bacon Hill Road in Pinewood.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clarendon County1 SE Alcolu 17 1500EST1504EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Highway Patrol reported a tree fell on a car on I-95 at mile marker 125. The vehicle was unoccupied.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Clarendon County1 WSW Manning 17 1500EST1504EST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)Sheriff reported numerous trees down on the west side of Manning.Note: The estimated wind gust of 60 knots is equivalent to 69 mph.Clarendon County1 SE Alcolu 17 1500EST1504EST 0 0 14.00K 0.00K Thunderstorm Wind (50EG)Highway Patrol reported a tree on a car along I-95 at mile marker 125. The car was parked on the side of the road and wasunattended.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Orangeburg County2 ESE Bolen 17 1555EST1559EST 0 0 4.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down near the intersection of Bonnette Road and Shillingsbridge Road.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Lancaster County1 S Lingles Xrds 17 1730EST1734EST 0 0 4.00K 0.00K Thunderstorm Wind (55EG)Sheriff reported trees down near Hwy 522 and Hwy 9.Scattered thunderstorms produced wind damage in the Midlands and Pee Dee regions, mainly to trees and powerlines. Note:The estimated wind gust of 55 knots is equivalent to 63 mph.Richland County1 S Columbia 23 1715EST1815EST 0 0 3.00K 0.00K Flash FloodThe USGS gage near the intersection of Pickens and Blossom Street reached 7.66 feet. Flood state is 7.2 feet. This producedflash flooding in the 5-points area of Columbia.364

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, CentralRichland CountyOlympia Mills1 SSW ColumbiaSOUTH CAROLINA, North Coastal23 1730EST1830EST 0 0 1.00K 0.00K Flash FloodFlooding occurred at the intersection of Main and Whaley Street and along Main Street in Columbia. The USGS gage reached7.55 feet. Flood state is 7.2 feet.A cluster of stationary thunderstorms produced flash flooding in the 5-points area of Columbia and also below the USC soccerstadium at Main and Whaley Streets. Damage was minimal.Florence County2 SE Peniel Xrds 02 1700EST1715EST 0 0 5.00K 0.00K Hail (1.75)Hail up to the size of golf balls was reported.Florence County2 NNW Cusac Xrds 02 1710EST1740EST 0 0 4.00K 0.00K Hail (1.00)Hail to the size of quarters was reported. The hail persisted for about 30 minutes.Florence County2 ESE Scranton 02 1730EST1745EST 0 0 3.00K 0.00K Hail (1.00)Hail to the size of quarters was reported along U.S. Highway 378.Thunderstorms developed along multiple surface boundary interactions. A cold pool aloft allowed thunderstorms to intensifyand several storms did produce large hail. There were also reports of wind damage.Marlboro County1 SSE Mc Coll 08 1815EST1816EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down across New Bridge Road. The time was estimated based on radar data.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marlboro County3 NNW Five Forks 08 1818EST1819EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down on McQuage Farm Road near Highway 9. The time was estimated based on radar data.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marlboro County2 NNE Marlboro 08 1822EST1823EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down at the intersection of Salem Road and Polston Road. The time was estimated based on radar data.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dillon County2 W Hamer 08 1840EST1841EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A tree was reported down at the intersection of Oakland Road and West Country Club Road. The time was estimated based onradar data.A cluster of thunderstorms intensified to severe levels ahead of a shortwave trough moving into the western Carolinas. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.365

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, North CoastalWilliamsburg CountyKingstree 17 1540EST1541EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees were reported down on Park Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Williamsburg County1 W Blakely 17 1611EST1612EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trees reported down on Blakely Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Horry County2 NE Stalvey 17 1636EST 0 0 1.00K 0.00K LightningLightning struck a tree and caused it to fall at the intersection of Burcale Road and McCormick Road. Wind gusts to 45 mphwere also reported.Horry County2 N Adrian 17 1710EST1711EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was reported down along Highway 410 near U.S. 701.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Horry County1 N Playcards 17 1720EST1721EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Two trees were reported down near the intersection of South Green Sea Road and Williamson Drive.Deep moisture was increasing ahead of a potent mid-level shortwave and surface cold front. Thunderstorms increased to severelevels as they intersected the seabreeze. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Horry CountyPlaycards 27 1331EST1500EST 0 0 0.00K 0.00K FloodSouth Carolina State Road 19 was closed due to flooding near Barts Road.Horry County1 S Dog Bluff1 NNE Tompkins27 1340EST1530EST 0 0 0.00K 0.00K FloodPee Dee Road was closed due to flooding near Jordanville Road.Heavy rain produced localized street flooding in Horry County.Georgetown County1 E Georgetown 28 1418EST1630EST 0 0 0.00K 0.00K FloodPortions of Front Street, Prince Street, and Dozier were flooded.Flooding around the city Georgetown.Georgetown County1 NE Simmonsville1 WSW Maryville29 1745EST2000EST 0 0 0.00K 0.00K FloodHeavy rain produced flooding on Kings River Road and Highway 17. The roads were impassable.366

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, North CoastalGeorgetown CountyAnnieville 29 1947EST2130EST 0 0 0.00K 0.00K FloodThe entrance to Litchfield Country Club was impassable due to street flooding.Georgetown CountyAnnieville 29 1947EST2130EST 0 0 0.00K 0.00K FloodSOUTH CAROLINA, NorthwestThere was about a half of foot of standing water at the intersection of Wilbrook Road and Hwy 17.Road flooding west of Pawleys Island.York County1 S Ft Mill 02 1918EST 0 0 Hail (0.88)Nickel size hail was reported in the Fort Mill area.York County1 S Ft Mill 02 1920EST 0 0 Thunderstorm Wind (50EG)Multiple trees and power lines were blown down near the intersection of Hensley Rd and Dobys Bridge Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chester County1 E Mc Keown 02 1945EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down along Boyd Rd near the intersection of Motes Dr.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greenville County3 SSW Wildwood Park 02 2123EST 0 0 Thunderstorm Wind (50EG)A tree was blown down near the intersection of Callahan Mountain Rd and Old Highway 25.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greenville County1 W Marietta 02 2123EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on highway 288, about 1.5 miles west of Marietta.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greenville County1 WNW Lima 02 2123EST 0 0 Thunderstorm Wind (50EG)Power lines were blown down near the intersection of highways 25 and 11, about 4 miles northeast of Marietta.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greenville County1 SSW Travelers Rest 02 2153EST 0 0 Thunderstorm Wind (50EG)A tree was blown down near the intersection of highways 25 and 276.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.367

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, NorthwestGreenville County4 ENE Greenville 02 2153EST 0 0 Thunderstorm Wind (50EG)A tree was blown down at East North St and Haywood Rd.Scattered thunderstorms developed over upstate South Carolina during the evening hours. A few of the storms caused winddamage and produced large hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Oconee County4 SSE Salem 06 1830EST 0 0 5.00K LightningLightning struck a home on Cove Lane, starting a fire that damaged part of the roof.Oconee County3 ENE Salem 06 1900EST 0 0 20.00K LightningLightning struck a home on Buckthorn Trail, starting a fire that damaged several rooms.Two separate lightning strikes damaged homes near Lake Keowee in eastern Oconee County.York County6 N Ft Mill 07 1930EST2100EST 0 0 0.00K 0.00K Flash FloodA road was closed due to high water at the intersection of highway 21 and Regent Parkway. The intersection of Altura Roadand Pleasant Road were also closed due to flooding. A stream of water several inches deep was reported to be running acrossthe south bound lanes of interstate 77 adjacent to Carowinds. Finally, a road was closed due to high water at the intersection ofPleasant Road and Steele Creek Road.Slow moving thunderstorms dropped 2 to 4 inches of rain in a short period of time, resulting in areas of mainly urban floodingover northeast York County.Pickens County3 E Pickens 08 1420EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Welborn Rd and another nearby on Ireland Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Pickens County1 SE Easley 08 1441EST 0 0 Hail (0.75)Anderson County6 WSW Powdersville6 W Piedmont08 1500EST1508EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down in areas west and southwest of Powdersville. A tree crushed a vehicle and another tree fell ona home on Three and Twenty Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Cherokee County1 W Cherokee Falls 08 1530EST 0 0 Thunderstorm Wind (50EG)Five trees were blown down along Batchelor Dr in the Cherokee Falls community.Cherokee County1 WSW Draytonville7 S GaffneyNote: The estimated wind gust of 50 knots is equivalent to 58 mph.08 1635EST1645EST 0 0 Thunderstorm Wind (55EG)Numerous trees blown down in areas south of Gaffney.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.368

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, NorthwestChester County2 SW Wilksburg 08 1719EST 0 0 Thunderstorm Wind (50EG)Several trees were blown down along Woods Ferry Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Laurens County3 ENE Joanna 08 1805EST1815EST 0 0 Thunderstorm Wind (50EG)Anderson County1 NE Craytonville4 SE WilliamstonMultiple trees were blown down in the Joanna area.The combination of a dissipating frontal boundary and a hot and humid airmass resulted in numerous showers andthunderstorms over upstate South Carolina. Some of the thunderstorms caused localized wind damage and large hail. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.09 1440EST1450EST 0 0 Thunderstorm Wind (50EG)Multiple trees were blown down across southeast Anderson County, including on Rodgers Rd, Holiday Dam Rd and CannonBottom Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Anderson County4 ESE Anderson 09 1512EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Bolt Dr, about 3.5 miles east southeast of downtown Anderson.Greenville County2 ENE Simpsonville3 SE Chestnut SpgsNote: The estimated wind gust of 50 knots is equivalent to 58 mph.09 1514EST1608EST 0 0 Thunderstorm Wind (55EG)Numerous trees were blown down from the Simpsonville area, across the east side of Greenville, across Greer and Taylors, andnorth toward the Glassy Mountain and Tigerville areas. A tree fell on a home on Roscoe Dr. Other trees fell on cars in theGreenville area. The most concentrated area of damage was along the I-85 corridor.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Anderson County2 W Anderson 09 1520EST 0 0 Thunderstorm Wind (50EG)Large limbs were blown down 2 miles west of Anderson. Also, a tree was blown down on Pearman Dairy Rd, 3.5 milesnorthwest of town.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Laurens County1 SW Laurens 09 1630EST 0 0 Hail (0.75)Laurens County1 W Laurens3 SW Ora09 1640EST1650EST 0 0 Thunderstorm Wind (50EG)Several trees were blown down from the city of Laurens north to around I-385.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Laurens CountyCross Hill 09 1750EST 0 0 Thunderstorm Wind (50EG)A couple trees were blown down in Cross Hill.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.369

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, NorthwestYork County1 NE Sharon 09 1916EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Sharon Rd about 4.5 miles southwest of York.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.York County4 SSE York 09 1916EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Cameron Rd.Another hot and humid day, along with an approaching upper trough, supported widespread shower and thunderstorm activityover upstate South Carolina. A few of the thunderstorms produced small areas of straight line wind damage. And one stormproduced a long lived swath of damaging outflow across Greenville County. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Pickens County3 NE Arial 10 2215EST 0 0 Thunderstorm Wind (50EG)A tree was blown down on Cannery Rd near highway 135 with another blown down on Prince George Rd.Greenville County2 SSW Furman UniversityOakvaleNote: The estimated wind gust of 50 knots is equivalent to 58 mph.10 2248EST2258EST 0 0 Thunderstorm Wind (50EG)Trees were blown down over western Greenville County from highway 183 at the Pickens line down to the intersection of RaySt and Fortner Ave.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greenville County1 ENE Five Forks 10 2322EST 0 0 Thunderstorm Wind (50EG)A tree was blown down along highway 296 and another was blown down at Woodruff Rd and Anderson Ridge Rd, about 6miles northeast of Simpsonville.A cold front crossed the region during the late evening hours, triggering scattered thunderstorms. The wind shear was a littlestronger than normal for the summer months, and a couple of the storms reached severe limits causing wind damage. Note:The estimated wind gust of 50 knots is equivalent to 58 mph.Spartanburg County1 NE Spartansburg Dwtn Ar 15 1617EST 0 0 Thunderstorm Wind (50EG)A tree was down on Briarcliff Rd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Spartanburg County1 N Glendale 15 1618EST 0 0 Hail (0.75)Spartanburg County2 N White Stone 15 1621EST 0 0 Thunderstorm Wind (50EG)SOUTH CAROLINA, South CoastalA tree was blown down at Bethesda Rd and South Pine St. Another tree was blown down at Bethesda Rd and Bethesda Dr withanother down on highway 150 in the Pacolet area.A thunderstorm blew down a few trees on the south side of Spartanburg. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Charleston County5 E Rockville 01 1917EST1918EST 0.03 50 0 0 0.00K 0.00K Tornado (EF0)A funnel cloud first appeared over Kiawah Island then moved into the waterway east of the bridge on Kiawah Island Parkway.Based on photographs and video taken, it appears that the funnel briefly touched down near the Intracoastal Waterway beforedissipating. There were no reports of damage associated with this tornado.With a very weak pressure pattern in place across much of the Southeastern portion of the country, the environment wasconducive to the development of waterspouts.370

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalAllendale County1 W Ulmers 02 1510EST1511EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reports a tree down and in the roadway near the intersection of Highway 301 and Well BranchRoad.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jasper County1 W Coosawhatchie 02 1530EST1531EST 0 0 0.00K 0.00K Hail (1.00)Law enforcement officer reported quarter sized hail on Interstate 95 near mile marker 28.Colleton County4 S Walterboro 02 1559EST1600EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Rodeo Drive near Poor Farm Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Colleton County2 SSE Green Pond 02 1605EST1606EST 0 0 0.00K 0.00K Hail (2.75)The public reported golf ball to baseball sized hail near the intersection of Highway 17 and Highway 303.Colleton County4 SE Sniders Xrds 02 1613EST1614EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Cane Branch Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Colleton County3 NNW Canadys 02 1617EST1618EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Highway 61 at Interstate 95.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Colleton County3 SE Canadys 02 1626EST1627EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Cannon Road at Round O Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dorchester County1 E St George 02 1631EST1632EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree reported down on Highway 78 between St George and Byrd.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dorchester County1 S Givhans 02 1650EST1651EST 0 0 0.00K 0.00K Hail (2.75)The Givhans Fire Department reported hail to the size of baseballs and wind gusts to 50 miles per hour.371

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalBerkeley County1 E Moncks Corner 02 1723EST1724EST 0 0 0.00K 0.00K Hail (1.75)A report of golf ball hail falling at the Berkeley County Emergency Operations Center.Berkeley CountyMoncks Corner 02 1724EST1725EST 0 0 0.00K 0.00K Hail (1.00)A trained spotter reported hail ranging from pea to quarter sized falling along Whitesville Road in Moncks Corner.Berkeley County1 E Moncks Corner 02 1725EST1726EST 0 0 0.00K 0.00K Hail (0.88)The public reported nickel sized hail and 30 to 40 miles per hour wind gusts. The hail briefly covered the ground.Berkeley County2 WSW Cherry Hill 02 1730EST1731EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail near the intersection of Travis Hill Road and Old Cherry Hill Road.Berkeley County1 E Moncks Corner 02 1733EST1734EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail in Moncks Corner.Berkeley County1 S Pinopolis 02 1735EST1736EST 0 0 0.00K 0.00K Hail (2.50)A spotter reported hail the size of tennis balls on Lakeside Drive near Lake Moultrie.Berkeley County1 NE Bonneau 02 1740EST1741EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Weather equipment at Fire Station 41 recorded a 62 miles per hour wind gust.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Berkeley County2 ENE Cherry Hill 02 1750EST1751EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail on Cane Gully Road near Wadboo Road.Berkeley County2 NNE Cherry Hill 02 1750EST1751EST 0 0 0.00K 0.00K Hail (0.88)A trained spotter reported penny to nickel sized hail near Macedonia.Berkeley County2 E Moncks Corner Arpt 02 1803EST1804EST 0 0 0.00K 0.00K Hail (1.00)The public reported pea to quarter sized hail along Saint Johns Avenue.372

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalBerkeley County3 NNE Cherry Hill 02 1805EST1806EST 0 0 0.00K 0.00K Hail (1.50)The public reported ping pong ball sized hail falling at Macedonia Middle School.Berkeley County1 E Alvin 02 1805EST1806EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reports a tree down and in the roadway on Santee River Road near Schurlknight Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Berkeley County4 SSE Harristown 02 1808EST1809EST 0 0 0.00K 0.00K Hail (1.50)The public reported ping pong ball sized hail falling on Highway 17A near Mail Route Road.Berkeley County3 NNE Cherry Hill 02 1813EST1814EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail near the intersection of Highway 17 and Bethera Road.A shortwave and associated thermal trough aloft interacted with a weakly sheared and strongly unstable environment.Thunderstorms initiated along inland mesoscale boundaries and became multi-cellular with strong moist updrafts progagatingmainly south and east across the forecast area. Thunderstorms produced scattered wind damage and multiple instances of largehail.Jasper County4 SW Robertville 09 1839EST1840EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down at Highway 119 and Sand Hills Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jasper County1 ESE Ridgeland Muni Arpt 09 1848EST1849EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down at N Jacob Smart Boulevard and N Green Street.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampton County1 W Furman 09 1858EST1859EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Highway 601 in Furman.An upper level trough approached the region from the west during the day as low level convergence boundaries set up with theonset of the afternoon sea breeze. Other boundaries from thunderstorm outflow also occurred and kept thunderstorm initiationgoing. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allendale County1 NW Allendale 11 1239EST1240EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Allendale County warning point reported a tree down on Water Street.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.373

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalHampton County2 E Estill Harpers Fld 11 1320EST1321EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reported a tree down on Grass Hill Road and Browning Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Beaufort County2 S Beaufort 11 1522EST1523EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Beaufort County warning point reported a tree down on Oyster Cove Road.A deep upper trough associated with a closed low over the Great Lakes extended southward into the northern Gulf of Mexicoduring the day. With upper level divergence resulting from a strong jet streak occurring close to a nearly stationary front,scattered severe thunderstorms developed in the afternoon hours. Note: The estimated wind gust of 50 knots is equivalent to 58mph.Beaufort County1 NE Pritchardville 16 1422EST1423EST 0 0 0.00K 0.00K Hail (1.00)The public reported quarter sized hail in Pritchardville. Winds were also estimated at 50 miles per hour.Beaufort County3 NNW Bluffton 16 1425EST1430EST 0 0 0.00K 0.00K Hail (1.00)Numerous reports of nickel to quarter sized hail in Bluffton. The spotter estimated that the hail fell for 5 minutes.With a weak trough aloft and a nearly stationary front in the vicinity, thunderstorms developed in the afternoon hours.Colleton County2 NW Walterboro 17 1520EST1521EST 0 0 6.00K 0.00K Thunderstorm Wind (55EG)Multiple trees and power lines down near the intersection of Robertson Boulevard and Bells Highway.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Colleton County1 NW Hendersonville 17 1521EST1522EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Multiple trees down in Hendersonville.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Allendale County1 ENE Appleton 17 1524EST1525EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree down on Route 125.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Allendale County2 SE Allendale Oswald Arp 17 1527EST1528EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)One tree down on Revolutionary Trail.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dorchester County1 W Jedburg 17 1610EST1611EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Multiple trees down and blocking both lanes of Orangeburg Road near Grayback Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.374

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalBerkeley County1 N Cordesville Station 17 1630EST1631EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)Multiple trees down on Ironhorse Way and Holiness Lane.A broad upper trough was in place across the eastern United States with an inland surface trough in the lee of the AppalachianMountains. Scattered to numerous thunderstorms developed near the surface trough and affected much of Georgia and SouthCarolina. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Berkeley County2 SSW Mc Beth 19 1115EST1116EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)Thunderstorm winds capsized a pontoon boat on Lake Moultrie near the Pinopolis Dam. Six people were thrown into the water.Law enforcement has confirmed one death (indirect) and five injuries (indirect).Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Charleston County1 SW Ashley Hall 19 1212EST1213EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)Charleston County 911 call center reported a tree down near the intersection of Orleans Road and Savage Road in West Ashley.With a high amplitude long wave trough aloft, and with a cold front positioned to the north, scattered severe thunderstormsdeveloped in the late morning and early afternoon hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Charleston County1 NW Charleston 28 1030EST2230EST 0 0 0.00K 0.00K Flash FloodNumerous reports of street flooding in Downtown Charleston. Calhoun Street is impassable.Charleston County1 NW Centerville 28 1042EST1142EST 0 0 0.00K 0.00K Flash FloodThe broadcast media relayed a report of fire rescue responding to a stranded vehicle on Hunley Avenue near Folly Road.Charleston CountyCitadel 28 1045EST2230EST 0 0 0.00K 0.00K Flash FloodA trained spotter reports the road impassable along King Street near Huger Street in Downtown Charleston.Charleston County1 ENE Dupont1 SSW Ashley Hall28 1105EST1205EST 0 0 0.00K 0.00K Flash FloodSouth Carolina Highway Patrol reports Savage Road near Interstate 526 closed due to flooding.Charleston County1 ENE Maryville1 NE Citadel28 1115EST2230EST 0 0 0.00K 0.00K Flash FloodCharleston Emergency Management reported twenty separate stranded vehicles in and around Downtown Charleston thatpolice and fire department crews are responding to.Charleston County1 SSW The Groves 28 1127EST1527EST 0 0 0.00K 0.00K Flash FloodColeman Boulevard near Moultrie Middle School has been closed due to flooding.375

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalCharleston County1 S Dorchester 28 1133EST2230EST 0 0 0.00K 0.00K Flash FloodCharleston County dispatch reported flooding and stranded vehicles on Azalea Drive from Cosgrove Avenue to Meeting Street,including Industrial Avenue.Charleston CountyMaryville1 NE Citadel28 1342EST2230EST 0 0 0.00K 0.00K Flash FloodLaw enforcement report that numerous roads remain flooded and water has entered many homes and businesses. Water rescuesare still ongoing and the market area is completely flooded.Charleston County1 SSW Ashley Hall 28 1350EST1450EST 0 0 0.00K 0.00K Flash FloodA trained spotter reports water entering homes on Hazelwood Drive.Charleston County1 SSW Ashley Jct1 S Navy Yard28 1434EST1734EST 0 0 0.00K 0.00K Flash FloodBroadcast media reports several roads in North Charleston flooded including Noisette Boulevard, McMillan, St. Johns, Buist atPark Place, Viaduct, and Hobson.Charleston County1 ESE Pinecrest 28 1455EST1555EST 0 0 0.00K 0.00K Flash FloodA trained spotter reports that Emory Avenue is flooded and only passable by tall trucks. Many yards are flooded and water issurrounding some homes.Torrential heavy rainfall developed in the late morning hours within the broad circulation and deep tropical moisture aroundTropical Cyclone Isaac. The heavy rainfall producing thunderstorms produced widespread flash flooding in and aroundDowntown Charleston.Jasper County3 S Tillman 28 1625EST1626EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)South Carolina Highway Patrol reports a tree down and blocking the roadway on Highway 321 near Floyd Road.Within the broad circulation and deep moisture associated with Tropical Storm Isaac, scattered to numerous thunderstormsdeveloped throughout the day. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Charleston County1 W Charleston 28 1930EST2230EST 0 0 750.00K 0.00K Flash FloodThe College of Charleston Emergency Manager reports that twenty three buildings on campus have sustained damage fromflash flooding. Flood waters are still in place across much of the campus.Torrential heavy rainfall developed in the late morning hours within the broad circulation and deep tropical moisture aroundTropical Cyclone Isaac. The heavy rainfall producing thunderstorms produced widespread flash flooding in and aroundDowntown Charleston.Charleston County1 NW Philip 29 1836EST1936EST 0 0 0.00K 0.00K Flash FloodLaw enforcement reports that police are assisting a motorist stranded in high water.376

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH CAROLINA, South CoastalCharleston CountyCitadel 29 1920EST2020EST 0 0 0.00K 0.00K Flash FloodEmergency management reports several roads closed due to flooding including Ashley Avenue at Bennett Street, parts ofMorrison Drive, Market Street, and Church Street.Charleston County1 N Mt Pleasant1 S The Groves29 1934EST2034EST 0 0 0.00K 0.00K Flash FloodThe public reports at least two feet of water on Coleman Boulevard in front of Moultrie Middle School.Charleston County1 SSW Citadel 29 1950EST2050EST 0 0 0.00K 0.00K Flash FloodEmergency management reports several other roads closed including America, Reid, President at the Crosstown, Concord, andHazel.Charleston CountyCitadel 29 2008EST2108EST 0 0 0.00K 0.00K Flash FloodThe following intersections were closed due to flooding including Huger and King, and Huger and Meeting.Charleston CountyIsle Of Palms Arpt 29 2009EST2109EST 0 0 0.00K 0.00K Flash FloodThrough social media, a car reported flooded and blocking the road on 32nd Avenue.Allendale County1 NW Allendale 29 2120EST2220EST 0 0 0.00K 0.00K Flash FloodA report roadway closed at Highway 125 and Highway 278 due to flooding.Allendale County1 W Allendale 29 2135EST2235EST 0 0 0.00K 0.00K Flash FloodSOUTH DAKOTA, Central and NorthFlash flooding reported on Short Street in Allendale.A line of thunderstorms developed late in the day and produced very heavy rainfall across much of the Downtown Charlestonarea. The rain fell in an area that had already seen extremely heavy rainfall amounts from the previous day. Flash floodingoccurred in similar areas with many roads closed. Other thunderstorms developed into the evening and produced flash floodingfurther inland in Allendale.SDZ015-033-035>037-045-048-051Buffalo - Dewey - Hand - Hughes - Hyde - Jones - Lyman - Stanley01310000CST2359CST 0 0 DroughtThe drought conditions intensified and expanded across parts of central South Dakota throughout August resulting in severe toextreme drought conditions. The month began with severe drought conditions across Stanley, Jones, Buffalo, Lyman, southernHughes, southern Hyde, and southern Hand counties. Severe drought conditions expanded into Dewey county at the end of themonth. Extreme drought conditions also expanded into Western Stanley and Jones counties by the end of August. The droughtcontinued to worsen and expand into September. The persistent drought conditions continued to affect livestock producers andagriculture. Soil moisture anomalies showed deficits of 3 to 5 inches. Crop conditions continued to decline throughout themonth. Also with the dryness, the fire danger remained high to extreme throughout the month.377

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthStanley County4 SE Ft Pierre 01 1410MST 0 0 Thunderstorm Wind (52EG)An estimated wind gust of at least sixty mph was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lyman County3 NW Mc Clure 01 1455CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)Note: The measured wind gust of 59 knots is equivalent to 68 mph.Hughes County7 S Harrold 01 1500CST 0 0 Hail (0.88)Hyde County4 NE Stephan 01 1535CST 0 0 Hail (1.75)Deuel County8 S Gary 01 1600CST 0 0 Hail (1.00)An area of low pressure moving across southern South Dakota produced severe thunderstorms. Hail up to golfball size anddamaging winds to around seventy mph occurred with these storms.Walworth County3 NW Mobridge 03 1329CST 0 0 Hail (1.00)Walworth County1 NW Mobridge 03 1352CST 0 0 Hail (0.88)Walworth County1 NW Sitka 03 1400CST 0 0 Hail (1.00)Walworth County5 NE Sitka 03 1400CST 0 0 Hail (2.50)Crop damage was reported due to tennis ball size hail.Walworth County2 ENE Glenham 03 1405CST 0 0 Hail (1.50)Walworth County3 ENE Sitka 03 1415CST 0 0 Hail (1.50)Walworth County3 N Selby 03 1417CST 0 0 Hail (1.25)Walworth County5 NE Sitka 03 1418CST 0 0 Hail (1.25)Walworth County2 ENE Selby 03 1420CST 0 0 Hail (1.50)Crop damage was reported due to ping pong size hail.Walworth County4 ESE Selby Arpt 03 1420CST 0 0 Hail (1.00)Walworth CountyGlenham 03 1420CST 0 0 Hail (1.00)378

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthCampbell County9 SSW Mound City 03 1430CST 0 0 Hail (1.50)Ping pong size hail caused minor crop damage.Walworth CountySelby 03 1430CST 0 0 Hail (1.00)Walworth County3 ESE Selby Arpt 03 1430CST 0 0 Hail (1.75)Golf ball size hail damaged some vehicles.Walworth County3 ESE Selby 03 1430CST 0 0 Hail (1.00)Quarter size hail caused some crop damage.Walworth CountySelby 03 1430CST 0 0 Hail (1.00)Walworth County4 NE Sitka 03 1430CST 0 0 Hail (2.50)Tennis ball size hail caused crop and roof damage.Walworth County6 S Glenham 03 1430CST 0 0 Hail (1.50)Walworth County1 NE Sitka 03 1430CST 0 0 Hail (1.00)Walworth County4 NNW Glenham 03 1430CST 0 0 Hail (1.00)Walworth County1 SSE Sitka 03 1432CST 0 0 Hail (1.00)Walworth CountySelby 03 1434CST1454CST 0 0 Hail (1.75)Hail up to golf ball size lasted for twenty minutes.Campbell County10 SSW Mound City 03 1435CST 0 0 Hail (1.00)Walworth County4 WSW Selby Arpt 03 1438CST 0 0 Hail (1.00)Faulk County5 N Burkmere 03 1445CST 0 0 Hail (1.00)Walworth County1 E Java 03 1451CST 0 0 Hail (1.00)Walworth County5 SSW Java 03 1453CST1503CST 0 0 Hail (1.75)Hail up to golfball size lasted for ten minutes.379

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthEdmunds County4 WSW Gretna 03 1500CST 0 0 Hail (1.25)Half dollar size hail caused damage to shingles and crops.Edmunds County3 ENE Bowdle 03 1500CST 0 0 Hail (1.25)Edmunds County1 E Bowdle 03 1500CST 0 0 Hail (1.00)Edmunds County7 S Gretna 03 1500CST 0 0 Hail (1.00)Quarter size hail caused damage to crops.Walworth County1 N Selby 03 1500CST 0 0 Hail (1.00)Walworth County3 WSW Java Jct 03 1500CST 0 0 Hail (1.25)Walworth County7 ESE Java 03 1503CST 0 0 Hail (1.00)Walworth County5 SE Java 03 1504CST 0 0 Hail (1.00)Edmunds County6 NNE Loyalton 03 1513CST 0 0 Hail (1.25)Edmunds County5 NNE Loyalton 03 1513CST 0 0 Hail (1.75)Edmunds County5 NNE Loyalton 03 1513CST 0 0 Thunderstorm Wind (61EG)The windows and vinyl siding on the west side of a house were destroyed due to seventy mph winds and golf ball size hail.The wind and hail also damaged the west side of a barn and severely damaged the bean and corn crops.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Edmunds County6 S Bowdle 03 1515CST 0 0 Hail (2.50)Edmunds County10 S Bowdle 03 1528CST 0 0 Hail (1.00)Edmunds County11 S Gretna 03 1530CST 0 0 Hail (1.25)Half dollar size hail damaged vehicles.Edmunds County1 NE Loyalton 03 1530CST 0 0 Hail (1.00)Edmunds County4 SSW Beebe 03 1530CST 0 0 Hail (1.00)380

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthEdmunds County5 SE Gretna 03 1531CST 0 0 Hail (1.00)Edmunds County11 S Bowdle 03 1545CST 0 0 Hail (1.75)Golf ball size hail caused damage to vehicles.Edmunds County3 S Roscoe 03 1545CST 0 0 Hail (1.25)Edmunds County7 NE Loyalton 03 1553CST 0 0 Hail (1.00)Edmunds County10 SSW Craven 03 1555CST 0 0 Hail (1.75)Edmunds County12 S Bowdle 03 1600CST 0 0 Hail (1.75)Edmunds County2 SSE Beebe 03 1600CST 0 0 Hail (1.00)Faulk CountyFaulkton 03 1605CST 0 0 Thunderstorm Wind (52EG)An estimated wind gust of sixty mph was reported by law enforcement.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Edmunds County4 SW Mina 03 1615CST 0 0 Hail (0.88)Edmunds County4 SW Mina 03 1615CST 0 0 Thunderstorm Wind (52EG)A trained spotter estimated a wind gust of sixty mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Faulk County1 SSE Chelsea 03 1615CST 0 0 Thunderstorm Wind (52EG)A trained spotter estimated wind gusts of sixty mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Faulk County1 SSE Chelsea 03 1617CST 0 0 Thunderstorm Wind (61EG)A trained spotter reported large tree branches down due to an estimated seventy mph winds.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Brown County3 S Richmond 03 1623CST 0 0 Thunderstorm Wind (55MG)Note: The measured wind gust of 55 knots is equivalent to 63 mph.Spink CountyRedfield 03 1640CST 0 0 Hail (1.00)381

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthSpink CountyRedfield 03 1640CST 0 0 Thunderstorm Wind (70EG)The emergency manager reported large branches downed due to estimated wind gusts of seventy to eighty mph.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Spink County1 N Gallup 03 1644CST 0 0 Thunderstorm Wind (70EG)An estimated wind gust of seventy to eighty mph was reported.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Spink CountyRedfield Arpt 03 1645CST1646CST 0.07 10 0 0Tornado (EF0)The public reported a tornado briefly touching down in a cornfield.Spink County7 NNE Frankfort 03 1655CST 0 0 Thunderstorm Wind (61EG)Seventy mph winds destroyed three grain bins along with downing numerous trees in a shelter belt. Significant crop damagealso occurred from the combination of winds and dime size hail.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Spink County1 N Doland 03 1659CST 0 0 Thunderstorm Wind (52EG)An estimated thunderstorm wind gust of sixty mph was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Spink County3 W Turton 03 1700CST 0 0 Thunderstorm Wind (70EG)Numerous trees along with power lines were downed by eighty mph winds. A building was also moved fifty feet off of it'sfoundation.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Spink County1 NE Brentford 03 1703CST 0 0 Thunderstorm Wind (61EG)An estimated thunderstorm wind gust of seventy mph caused tree branches in Brentford to come down.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Spink County3 S Conde 03 1705CST1707CST 0.29 10 0 0Tornado (EF0)A weak tornado touched down in a cornfield three miles southwest of Conde.Spink CountyTurton 03 1707CST 0 0 Thunderstorm Wind (70EG)An estimated thunderstorm wind gust of seventy to eighty mph was reported.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Spink County1 N Doland 03 1708CST 0 0 Hail (1.00)382

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthClark County1 SW Raymond 03 1715CST 0 0 Thunderstorm Wind (52EG)An estimated thunderstorm wind gust of sixty mph was reported.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Clark County2 NE Garden City 03 1736CST 0 0 Thunderstorm Wind (52EG)An estimated thunderstorm wind gust of sixty mph caused tree damage.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hamlin CountyCastlewood 03 1820CST 0 0 Thunderstorm Wind (70EG)Eighty mph winds downed between thirty and forty trees in Castlewood and Hayti. Many power outages were also reported.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Roberts CountyRosholt 03 1856CST 0 0 Thunderstorm Wind (52EG)An estimated thunderstorm wind gust of sixty mph downed trees and caused power outages.An area of low pressure and associated cold front moving across South Dakota produced many severe thunderstorms. Tennisball size hail and damaging wind gusts up to eighty mph along with a few tornadoes were reported. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Faulk County10 S Seneca 22 2045CST2055CST 0 0 Hail (1.00)The public reported ten minutes worth of quarter size hail.A severe thunderstorm produced quarter size hail in Faulk County.Corson County1 W Mc Intosh 24 1630MST 0 0 Thunderstorm Wind (61EG)A large tree was blown over by seventy mph winds.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Corson County5 SE Mc Intosh Muni Arpt 24 1700MST1710MST 0 0 Hail (1.00)Quarter size hail fell for ten minutes.Corson County5 SE Mc Intosh Muni Arpt 24 1700MST1710MST 0 0 Thunderstorm Wind (70EG)Estimated wind gusts of seventy to eighty mph were reported.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Corson County9 S Black Horse 24 1705MST 0 0 0.00K 0.00K Hail (0.88)Sixty mph winds and nickel size hail caused damage to crops.Corson County9 S Black Horse 24 1705MST 0 0 Thunderstorm Wind (52EG)Sixty mph winds and nickel size hail caused damage to crops.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.383

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, Central and NorthCorson County10 S Bullhead 24 1730MST 0 0 Thunderstorm Wind (63MG)Note: The measured wind gust of 63 knots is equivalent to 72 mph.Corson County4 SSW Little Eagle 24 1800MST 0 0 Hail (0.88)Corson County7 SSW Wakpala 24 1829MST 0 0 Hail (1.00)Severe storms developed over Corson county during the evening hours producing quarter size hail along with winds up toeighty mph.Brown CountyBath 28 0220CST 0 0 Hail (0.88)Brown County4 SW Frederick 28 0245CST 0 0 Hail (1.75)Golf ball size hail broke windows in two vehicles and dented farm equipment. Tree branches were also downed.Brown CountyBarnard 28 0255CST 0 0 Hail (1.00)Quarter size hail along with strong winds caused some minor damage to the siding on a house and stripped leaves off crops.Day County5 WSW Lily 28 0345CST 0 0 Hail (0.88)Day County4 NE Crandall 28 0355CST 0 0 Thunderstorm Wind (52EG)Tree branches were downed by sixty mph winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Day County6 WSW Butler 28 0400CST 0 0 Hail (1.00)Quarter size hail caused moderate stripping of corn leaves.Codington County5 SW Florence 28 0445CST 0 0 Hail (1.00)SOUTH DAKOTA, SoutheastSevere thunderstorms developed during the morning hours across the northeastern portion of South Dakota. The thunderstormsproduced hail up to golf ball size and damaging winds.SDZ038>040-050-052>071Aurora - Beadle - Bon Homme - Brookings - Brule - Charles Mix - Clay - Davison - Douglas - Gregory -Hanson - Hutchinson - Jerauld - Kingsbury - Lake - Lincoln - McCook - Miner - Minnehaha - Moody -Sanborn - Turner - Union - Yankton01310000CST2359CST 0 0 DroughtDrought conditions continued over all of the area with below normal rainfall keeping soil conditions dry. Stress on cropscontinued even though August was less hot than July, with temperatures averaging only a little above normal. Crop damagewas quite evident, though the amount of reduced yields and other damage which might become evident at harvest wasuncertain. While reported water supply problems were not extreme, many local governments had water use restrictions in place.Drought was generally listed as severe to extreme for the area, and was being compared to the worst of the dust bowl years,though not yet over as long a time period.384

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, SoutheastSDZ050-052>054-057>071Aurora - Bon Homme - Brule - Charles Mix - Clay - Davison - Douglas - Gregory - Hanson - Hutchinson -Jerauld - Lincoln - McCook - Miner - Minnehaha - Sanborn - Turner - Union - Yankton01 1100CST1800CST 0 0 0.00K 0.00K Excessive HeatTemperatures reaching the 90s and high humidity with dew points in the 70s caused excessive heat during the afternoon ofAugust 1st in southeast South Dakota near and south of Interstate 90.Charles Mix County6 ENE Bovee 01 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds caused tree damage, including several branches blown down.A thunderstorm produced damaging winds in central Charles Mix County on the early evening of August 1st. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.Beadle County2 S Bonilla 03 1727CST 0 0 0.00K 0.00K Hail (1.00)Beadle County3 S Bonilla 03 1729CST 0 0 0.00K 0.00K Hail (1.75)Beadle County4 WSW Broadland 03 1735CST 0 0 0.00K 0.00K Hail (1.00)Beadle County6 E Broadland 03 1745CST 0 0 0.00K 0.00K Hail (1.00)Beadle County5 NNW (HON)Huron Arpt 03 1746CST 0 0 0.00K 0.00K Hail (1.00)Beadle County1 N (HON)Huron Arpt 03 1752CST 0 0 0.00K 0.00K Thunderstorm Wind (68MG)Thunderstorm winds caused tree damage, including several branches blown down.Note: The measured wind gust of 68 knots is equivalent to 78 mph.Beadle County1 N Huron 03 1755CST 0 0 0.00K 0.00K Hail (1.25)Beadle County7 ESE Virgil 03 1755CST 0 0 0.00K 0.00K Hail (1.00)Beadle County5 SSW Huron 03 1800CST 0 0 0.00K 0.00K Hail (1.50)Beadle County9 S Huron 03 1800CST 0 0 0.00K Hail (1.75)Large hail caused an unknown amount of damage to vehicles.Beadle County5 SSW Huron 03 1800CST 0 0 0.00K 0.00K Hail (1.25)Beadle County4 S Huron 03 1802CST 0 0 0.00K 0.00K Hail (1.75)385

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, SoutheastSanborn County10 NNE Woonsocket 03 1803CST 0 0 0.00K 0.00K Hail (1.00)Beadle County5 ESE Huron 03 1805CST 0 0 0.00K 0.00K Hail (1.00)Charles Mix County6 NE Platte Muni Arpt 03 1805CST 0 0 0.00K 0.00K Hail (1.00)Beadle County6 SE Huron 03 1805CST 0 0 Thunderstorm Wind (61EG)Thunderstorm winds caused tree damage, including up to 10 inch diameter limbs broken off. The winds also pushed a grainwagon into a fence and caused an unknown but significant amount of crop damage.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Beadle County4 SSW Cavour 03 1810CST 0 0 0.00K 0.00K Hail (1.00)Beadle County11 S Cavour 03 1815CST 0 0 0.00K 0.00K Hail (1.25)Davison County1 W (MHE)Mitchell Arpt1 NW Mitchell03 1829CST 0 0 15.00K 0.00K Thunderstorm Wind (69MG)Thunderstorm winds broke windows in at least 30 vehicles, and caused tree damage.Note: The measured wind gust of 69 knots is equivalent to 79 mph.Lake County2 WNW Madison 03 1900CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Note: The measured wind gust of 51 knots is equivalent to 59 mph.Lake County1 E Ramona 03 1906CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds caused tree damage, including a few trees blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lake County1 W Madison Muni Arpt 03 1911CST 0 0 0.00K 0.00K Thunderstorm Wind (68MG)Note: The measured wind gust of 68 knots is equivalent to 78 mph.Minnehaha County1 N Colton 03 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm winds caused tree damage, including a few trees and several large branches blown down.Thunderstorms produced large hail and damaging winds at numerous locations across southeast South Dakota during the lateafternoon and early evening of August 3rd. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Beadle County1 N (HON)Huron Arpt 08 0215CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)A thunderstorm produced a wind gust to 58 mph at Huron Airport during the predawn hours of August 8th. Note: Themeasured wind gust of 50 knots is equivalent to 58 mph.SDZ050Gregory16 1000CST2000CST 0 0 0.00K WildfireA wildfire burned grassland in and near the Karl E. Mundt National Wildlife Refuge in southeastern Gregory County SouthDakota on August 16th.386

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, WestPennington County2 SSE Creighton 01 1245MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A severe thunderstorm developed over northeastern Pennington County and produced wind gusts to 60 mph near Creighton.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Haakon County13 W Philip 01 1255MST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm quickly developed over southwestern Haakon County and produced quarter sized hail.Bennett County2 E Swett 01 1340MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A thunderstorm briefly became severe over western Bennett County and produced wind gusts around 60 mph. Note: Theestimated wind gust of 52 knots is equivalent to 60 mph.Jackson County6 WSW Long Valley 01 1405MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A severe thunderstorm quickly developed over Jackson County and produced strong wind gusts over southern portions of thecounty. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Lawrence County5 W Spearfish 02 1526MST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)Note: The measured wind gust of 59 knots is equivalent to 68 mph.Lawrence County2 NNW St Onge 02 1645MST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)Tee branches were blown down.Strong winds developed as thunderstorms moved from Wyoming. Wind gusts around 70 mph were recorded west of Spearfishand north of Saint Onge. Note: The measured wind gust of 61 knots is equivalent to 70 mph.Lawrence CountyCheyenne Crossing 02 1645MST 0 0 0.00K 0.00K Hail (1.00)A cluster of severe thunderstorms moved from Wyoming across the northern Black Hills and west central South Dakota. Thestorms initially produced large hail and then strong wind gusts as they moved across the west central South Dakota plains.Butte County13 SE Hoover 02 1645MST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Wind gusts were estimated at 70 mph.A cluster of thunderstorms moved across northwestern South Dakota and produced strong wind gusts across portions of thearea. Wind gusts were estimated around 60 mph over southern Perkins and northern Meade Counties. Note: The estimatedwind gust of 61 knots is equivalent to 70 mph.Lawrence CountyNemo 02 1715MST1720MST 0 0 0.00K 0.00K Hail (1.00)Meade County1 NW Piedmont 02 1723MST 0 0 0.00K 0.00K Hail (1.25)A cluster of severe thunderstorms moved from Wyoming across the northern Black Hills and west central South Dakota. Thestorms initially produced large hail and then strong wind gusts as they moved across the west central South Dakota plains.Perkins County8 WNW Usta 02 1740MST1742MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.387

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, WestA cluster of thunderstorms moved across northwestern South Dakota and produced strong wind gusts across portions of thearea. Wind gusts were estimated around 60 mph over southern Perkins and northern Meade Counties. Note: The estimatedwind gust of 52 knots is equivalent to 60 mph.Meade County6 NNE Ellsworth Afb 02 1800MST 0 0 0.00K 0.00K Hail (1.00)Pennington CountyBoxelder 02 1802MST 0 0 60.00K 0.00K Hail (1.75)Pennington County19 NNE Creighton 02 1830MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A cluster of severe thunderstorms moved from Wyoming across the northern Black Hills and west central South Dakota. Thestorms initially produced large hail and then strong wind gusts as they moved across the west central South Dakota plains.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pennington County(RAP)Rapid City Arpt 02 1847MST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)A severe thunderstorm moved through the Rapid City area and produced wind gusts over 60 mph at the Rapid City RegionalAirport. Note: The measured wind gust of 55 knots is equivalent to 63 mph.Pennington CountyWasta 02 1851MST 0 0 0.00K 0.00K Hail (1.25)Jackson County3 WSW Cottonwood 02 1930MST 0 0 0.00K 0.00K Hail (0.75)Haakon County(PHP)Philip Arpt 02 1934MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.Jackson County4 E Cactus Flats 02 1945MST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)Note: The measured wind gust of 55 knots is equivalent to 63 mph.Jackson CountyKadoka 02 2010MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jackson County10 ENE Belvidere 02 2015MST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A tractor trailer was blown over by the strong winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Mellette County1 NNE Cedar Butte 02 2130CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The observer estimated wind gusts at 60 mph.A cluster of severe thunderstorms moved from Wyoming across the northern Black Hills and west central South Dakota. Thestorms initially produced large hail and then strong wind gusts as they moved across the west central South Dakota plains.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Todd County5 S Mission 02 2320CST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)Wind gusts were estimated around 80 mph.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.388

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, WestTodd County14 S Mission Sioux Arpt 02 2330CST 0 0 0.00K 0.00K Thunderstorm Wind (74MG)A thunderstorm became severe as it moved across south central South Dakota and produced wind gusts around 80 mph south ofMission in Todd County. Note: The measured wind gust of 74 knots is equivalent to 85 mph.Pennington County9 ESE Scenic 07 1415MST 0 0 0.00K 0.00K Hail (1.50)A thunderstorm briefly became severe as it moved through southeastern Pennington County and produced large hail southeastof Scenic.Pennington County5 ENE Scenic 07 1435MST 0 0 0.00K 0.00K Hail (1.00)A severe thunderstorm produced quarter sized hail east of Scenic.Lawrence CountyDeadwood 10 1300MST1310MST 0 0 0.00K 0.00K Hail (1.00)Lawrence County3 WNW Central City 10 1300MST 0 0 0.00K 0.00K Hail (0.88)Lawrence County3 W Nemo 10 1420MST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail covered the ground.Pennington County3 NNE Silver City 10 1437MST 0 0 0.00K 0.00K Hail (1.00)Pennington CountyRockerville 10 1516MST 0 0 0.00K 0.00K Hail (1.00)Pennington CountyHayward 10 1535MST1545MST 0 0 0.00K 0.00K Hail (1.00)Custer County4 NNW Fairburn 10 1600MST1612MST 0 0 2.00K 0.00K Hail (1.00)Hail driven by 52 mph wind gusts broke windows.A supercell thunderstorm developed over the northern Black Hills and tracked southeast through the central Black Hills. Thestorm produced quarter sized hail and 50 mph wind gusts.Fall River CountyEdgemont 10 1840MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A thunderstorm briefly became severe as it moved into Fall River County and produced wind gusts to 60 mph in Edgemont.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Custer County1 E Custer 10 1845MST 0 0 0.00K 0.00K Hail (0.88)Custer County1 E Custer 10 1845MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.Hail and strong winds accompanied a severe thunderstorm as it passed through the Custer area. Note: The estimated wind gustof 52 knots is equivalent to 60 mph.389

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, WestCuster County4 NNW Fairburn 11 1410MST1418MST 0 0 0.00K 0.00K Hail (1.00)A thunderstorm briefly became severe over the Custer County foothills and produced quarter sized hail near Fairburn.Lawrence County8 W Spearfish 11 1530MST1535MST 0 0 0.00K 0.00K Hail (0.75)Penny sized hail fell with a thunderstorm west of Spearfish.Shannon CountyRockyford 11 1730MST 0 0 50.00K 20.00K Hail (1.75)Shannon CountyRockyford 11 1730MST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Strong wind gusts propelled large hail through siding and windows and destroyed pasture grass. Twelve houses were damaged.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Shannon County2 S Kyle 11 1810MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bennett County2 SSE Allen 11 1830MST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)Wind gusts were estimated at 70 mph.A supercell thunderstorm tracked southeastward across Shannon and Bennett Counties before moving into Nebraska. Thethunderstorm produced large hail and wind gusts to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70mph.Harding County13 WNW Ladner 13 1755MST1805MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Harding County1 E Camp Crook 13 1820MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Wind gusts were estimated at 60 mph.A thunderstorm moved from Montana and produced wind gusts to 60 mph across the western portion of Harding County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Butte CountyBelle Fourche Arpt 13 1955MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Note: The measured wind gust of 54 knots is equivalent to 62 mph.Butte County26 WNW Castle Rock 13 1956MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Note: The measured wind gust of 50 knots is equivalent to 58 mph.Lawrence CountySpearfish Arpt 13 2015MST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)A thunderstorm produced wind gusts near 60 mph across western Butte County and the Spearfish area. Note: The measuredwind gust of 51 knots is equivalent to 59 mph.SDZ030-042-073Custer Co Plains - Pennington Co Plains - Shannon - Southern Meade Co Plains15 0700MST1300MST 0 0 0.00K 0.00K High Wind390

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012SOUTH DAKOTA, WestStrong northwesterly winds developed behind a cold front. The strongest winds developed across portions of the southwesternSouth Dakota plains, where sustained winds of 35 to 45 mph and gusts to 55 mph were recorded.Todd CountyParmelee 22 1711CST1715CST 0 0 0.00K 0.00K Hail (1.00)A thunderstorm briefly became severe as it crossed western Todd County and produced quarter sized hail in Parmalee.Pennington County8 S Wall 24 2110MST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)Wind gusts near 70 mph accompanied a thunderstorm as it moved across northern portions of Badlands National Park. Note:The measured wind gust of 59 knots is equivalent to 68 mph.Shannon County8 SW Batesland 26 1520MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)TENNESSEE, CentralTNZ005>007-022>025-056>057A severe thunderstorm developed over southeastern Shannon County and tracked southeastward into Nebraska. The stormproduced wind gusts around 60 mph southwest of Batesland. Note: The measured wind gust of 52 knots is equivalent to 60mph.Benton - Dickson - Hickman - Houston - Humphreys - Montgomery - Perry - Robertson - Stewart01310000CST2359CST 0 0 DroughtSevere (D2) to extreme (D3) drought conditions continued across five northwest Middle Tennessee counties through the monthof August. However, numerous rain events throughout the month helped to gradually improve drought conditions.Cumberland CountyCrossville 01 1440CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail reported in Crossville.Overton County1 W Hilham 01 1445CST 0 0 0.00K 0.00K Hail (1.00)Pickett County2 SSW Byrdstown 01 1515CST 0 0 0.00K 0.00K Hail (0.88)Wayne CountyLutts 01 1540CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down in Lutts.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Stewart County1 W Wyatts Chapel 01 1604CST 0 0 0.00K 0.00K Hail (1.00)Stewart County1 W Wyatts Chapel 01 1604CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Emergency Manager estimated winds at 65 mph.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Wayne County4 WSW Cromwell Xrds 01 1605CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down across the southwest part of Wayne County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.391

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralStewart County1 W Indian Mound 01 1610CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down around the Indian Mound community. Highway 46 was blocked in several locations by fallentrees and power lines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson CountyBordeaux 01 1632CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Multiple trees and power lines were blown down in Bordeaux.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County2 SSW Nashville 01 1647CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)Large tree branch blown down on Music Row.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Davidson County2 W Tusculum 01 1650CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Numerous trees blown down in Crieve Hall along Blackman Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County2 W Tusculum 01 1655CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Trees fell on two houses and power lines were blown down onto a road in Crieve Hall.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grundy CountyAltamont 01 1745CST 0 0 0.00K 0.00K Hail (0.75)Hickman CountyBon Aqua 01 1747CST 0 0 0.00K 0.00K Hail (1.00)Coffee CountyTullahoma 01 1930CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Numerous trees were blown down throughout Tullahoma.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bedford CountyNormandy 01 1935CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down in Normandy.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grundy CountyAltamont 01 2010CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Several trees and power lines were blown down throughout Grundy County.TNZ062Scattered severe thunderstorms developed all across Middle Tennessee during the afternoon and evening hours. Numerousreports of wind damage and a few reports of large hail were received. Note: The estimated wind gust of 52 knots is equivalentto 60 mph.Rutherford02 1000CST1900CST 2 0 0.00K 0.00K HeatRecord high temperatures in the upper 90s and dewpoints in the low to mid 70s led to oppressive heat across Middle Tennesseeon August 2. Two young children reportedly died of heat stroke after being left inside a vehicle for several hours in RutherfordCounty. M3VE, F2VE392

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralGiles County1 NE Elkton 02 1615CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown onto and blocked Baugh Road just east of Elkton.Widely scattered thunderstorms developed again during the afternoon and evening hours across mainly southern MiddleTennessee. One storm become severe with wind damage reported. Note: The estimated wind gust of 52 knots is equivalent to60 mph.Wilson County1 SSE Oakland 04 1352CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)One tree was snapped and several tree limbs were blown down along Maple Hill Road north of Carver Lane. Nearby video andradar data showed a rotating wall cloud passed just north of this area.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Trousdale CountyPaynes Store 04 1500CST1600CST 0 0 0.00K 0.00K FloodShallow water covered roads around the intersection of Highway 231 and Highway 25 east of Castalian Springs with 2 to 3 feetof water in adjacent fields near creeks.A line of showers and thunderstorms moved eastward across Middle Tennessee during the afternoon hours. One storm becamesevere with wind damage and flooding reported.Sumner County1 W Rogana1 ESE Chipman05 1030CST1230CST 0 0 0.00K 0.00K FloodEmergency management and social media reported minor flooding on secondary roadways and yards in Castalian Springs.Roads that were flooded included Greenfield Lane, Rogana Road, and Rock Springs Road. Bledsoe Creek rose above its banksnear Highway 25.Trousdale County1 NNE Paynes Store2 ENE Hartsville05 1100CST1200CST 0 0 0.00K 0.00K FloodA retired NWS employee and television media reported minor flooding in and around Hartsville. Several roads had minorflooding including Brummit Road where water was covered the yards of several homes.White County1 S Macedonia1 NE Spring Hill05 1400CST1500CST 0 0 0.00K 0.00K Flash FloodEmergency management and social media reported flash flooding across northern White County north of Sparta. The CalfkillerRiver was well out of its banks and surrounding homes on Coal Bank Road. Two other roads in the area were closed due to theflooding.Benton County2 SSW Eagle Creek 05 1417CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Highway Department reported trees down on several secondary roads in southeast Benton County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Montgomery County3 SSW Beldon 05 1850CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Rossview Road.Another line of strong to severe thunderstorms moved across Middle Tennessee during the late morning and afternoon hours. Asecond line of thunderstorms formed over western Kentucky and moved across northern portions of Middle Tennessee in theevening. A few reports of flooding and wind damage were received. Note: The estimated wind gust of 52 knots is equivalent to60 mph.393

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralLawrence County2 NW Lawrenceburg 06 1430CST1530CST 0 0 0.00K 0.00K FloodHeavy rainfall reportedly caused high water in yards of homes in and around Lawrenceburg with a few brief road closures dueto minor flooding.Isolated showers and thunderstorms developed once again during the afternoon hours across portions of Middle Tennessee. Onereport of minor flooding was received.TNZ027Davidson07 0700CST1400CST 1 0 0.00K 0.00K HeatA 5 month old baby died of hyperthermia in Donelson after being left inside a vehicle for 7 to 8 hours on August 7. The hightemperature reached 93 degrees at the nearby Nashville International Airport. M0VERobertson CountySpringfield 09 0640CST 0 0 0.00K 0.00K Hail (0.75)Dime size hail reported on Central Avenue in Springfield.Robertson CountySpringfield 09 0640CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees and power lines were blown down on Central Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wilson CountyMt Juliet 09 0826CST 0 0 0.00K 0.00K Hail (1.00)Sumner County1 ESE Kansas 09 0850CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Several trees were blown down on Rock Bridge Road at Highway 31E.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Trousdale County3 WSW Hartsville 09 0903CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)A tree was blown down across Oldham Road.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Coffee County2 NNE Gnat Hill 09 0930CST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)The Manchester Times reported a home at 1374 Lakeshore Drive in the Lakewood Park had half of the roof blown off.Numerous trees all along Lakeshore Drive were snapped or uprooted.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.White CountySparta 09 1050CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Several trees and power lines were blown down across White County.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Humphreys CountyMc Ewen 09 2042CST 0 0 0.00K 0.00K Hail (0.75)Dime size hail fell in McEwen.394

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralHumphreys CountyMc Ewen 09 2042CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Two trees were blown down in McEwen.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dickson County1 SSE Tennessee City 09 2052CST 0 0 15.00K 0.00K Thunderstorm Wind (74EG)Dickson County Emergency Management determined a strong 1/2 mile long microburst struck the southeast side of TennesseeCity along Pruitt Road. Two dozen large healthy trees were snapped in an east-northeast direction. A semi-trailer was moved 10feet. Shingles were blown off a home. Winds were estimated up to 85 mph.A line of thunderstorms moved across Middle Tennessee during the morning hours, with several reports of wind damage and afew reports of large hail received. Additional isolated thunderstorms developed later in the day during the evening, producingmore wind damage. Note: The estimated wind gust of 74 knots is equivalent to 85 mph.Montgomery County2 E Woodlawn 13 0831CST 0 0 0.00K 0.00K Hail (0.75)Davidson County2 NNW Nashville 13 0948CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Two trees were blown down near the Fedex World Service Center at 127 Athens Way north of downtown Nashville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County3 N Nashville 13 0950CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail was reported at I-65 and Trinity Lane.Davidson CountyDonelson 13 0955CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)A tree was blown down at Lebanon Road at Stewarts Ferry Pike in Hermitage.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Davidson CountyTulip Grove 13 1000CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)A tree was blown down on Topeka Drive in Hermitage.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Wilson County1 ESE Mt Juliet 13 1010CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)The twitter weather spotter network tSpotter reported and photos confirmed numerous trees were blown down on East DivisionStreet in Mount Juliet.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Giles County1 S Bodenham 13 1110CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)A tree was blown down on Puryear Road.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Lawrence County1 E Lawrenceburg Arpt 13 1114CST 0 0 300.00K 0.00K LightningLightning struck a house at 58 Kelsey Drive in the New Prospect community east of Lawrenceburg. The resulting fire caused atotal loss to the home.A line of strong to severe thunderstorms moved across Middle Tennessee during the late morning to early afternoon hours,producing wind damage and large hail.395

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralRutherford CountyChristiana 16 1810CST 0 0 0.00K 0.00K Hail (1.00)Houston County1 WNW Yellow Creek 16 1942CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Proctor Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Benton County1 N Big Sandy 16 2005CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on New Hope Road just north of Big Sandy.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Benton County2 WNW Faxon 16 2010CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Cooper Cemetery Road northeast of Big Sandy.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dickson CountyHamble 16 2010CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Shelter Branch Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dickson County3 SSW Cumberland Furnace 16 2010CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Murphy Hollow Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dickson County1 NE Hamble 16 2010CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on Rock Springs Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dickson CountyDickson 16 2017CST 0 0 0.00K 0.00K Hail (0.75)Montgomery CountyClarksville 16 2020CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)Large limbs were blown down in Clarksville.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Cheatham CountyPleasant View 16 2030CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)Large tree limbs were blown down in Pleasant View.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Dickson CountyDickson 16 2030CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)Large tree limbs were blown down in Dickson.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.Sumner CountyPortland 16 2049CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A tree fell on a house on Main Street in Portland.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.396

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralRobertson CountyGreenbrier 16 2100CST 0 0 0.00K 0.00K Hail (1.00)Robertson CountyHandleyton 16 2108CST 0 0 20.00K 0.00K Thunderstorm Wind (65EG)At least 50 healthy hardwood trees were reportedly snapped or uprooted along Byrams Chapel Road just north of Highway 52.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Davidson County1 E Nashville 16 2120CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Two large trees were snapped and numerous large limbs were broken in and around Shelby Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County1 ENE Richland 16 2120CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down in west Nashville on Sterling Street and Robertson Avenue.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson CountyBelle Meade 16 2123CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail was reported in Hillwood and Belle Meade.Davidson County1 WSW Amqui 16 2127CST 0 2 15.00K 0.00K Thunderstorm Wind (52EG)A tree fell onto a car on Anderson Lane in Madison. Two people were trapped in the car and injured before being rescued andtransported to the hospital.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Strong thunderstorm winds blew down a tree onto a car on Anderson Lane in Madison. Two people were trappedin the car and injured before being rescued and transported to the hospital.Williamson County1 SE New Hope 16 2130CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)A two foot diameter tree was blown down on Horn Tavern Road at Bahne Road.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.397

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralWilson CountyLebanon 16 2130CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down in Lebanon.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Williamson County1 WNW Ewingville 16 2136CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down on 11th Avenue North in Franklin.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County1 S Donelson 16 2140CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down at the intersection of Lakeland Drive and Ironwood Drive in Donelson.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County1 E Four Corners 16 2140CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)Two boat docks and one boat were destroyed at the Four Corners Marina on Percy Priest Lake in Antioch.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hickman CountyNunnelly 16 2145CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees and power lines were blown down in Nunnelly.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wilson County3 NNE Greenlawn 16 2145CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down at Saundersville Ferry Road at Kebu Drive.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Perry County4 WNW Lobelville 16 2147CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down on Terrapin Creek Road near Lobelville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wilson County2 WNW Oakland 16 2150CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down into the road on Coles Ferry Pike at Horn Springs Road.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wilson CountyLebanon 16 2154CST 0 0 0.00K 0.00K Hail (1.00)Rutherford County1 SW La Vergne 16 2155CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)A few trees and a power pole were blown down at Waldron Road and Bridgestone Parkway.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Davidson CountyBrentwood 16 2157CST 0 0 1.00K 0.00K Thunderstorm Wind (48EG)Large tree branches were broken in Brentwood.Note: The estimated wind gust of 48 knots is equivalent to 55 mph.398

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, CentralWilson County2 SE Lebanon 16 2205CST 0 0 1.00K 0.00K Thunderstorm Wind (43EG)Some tents were damaged or blown over at the Wilson County Fair.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Rutherford County2 NW Murfreesboro Arpt 16 2214CST 0 0 20.00K 0.00K Thunderstorm Wind (66MG)Numerous trees were snapped and uprooted with power lines blown down all around the Siegel Road area of northMurfreesboro. Spotter measured a wind gust of 76 mph.Note: The measured wind gust of 66 knots is equivalent to 76 mph.Coffee CountyManchester 16 2255CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A few trees were blown down in Manchester.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Coffee CountyTullahoma 16 2305CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down in the yard of a home in Tullahoma.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Giles CountyPulaski 16 2326CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down in Pulaski.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Davidson County1 NNW Newsom 17 0000CST 0 0 200.00K 0.00K LightningLightning struck a home on Westfall Drive in Bellevue. The resulting fire destroyed the second story of the home.A large MCS moved across Middle Tennessee during the evening hours of August 16 into the early morning hours of August17, producing widespread wind damage and some large hail. Tens of thousands of people were left without power and twopeople were injured, making this the most damaging severe weather event in the summer of 2012.Davidson County2 NW J Percy Priest Res N 25 1401CST 0 0 5.00K 0.00K Thunderstorm Wind (30EG)TENNESSEE, EastA few docks and boats were damaged at Elm Hill Marina. A dock employee estimated winds up to 35 mph.Scattered thunderstorms developed across portions of Middle Tennessee during the afternoon hours. One storm produced winddamage on Percy Priest Lake. Note: The estimated wind gust of 30 knots is equivalent to 35 mph.Anderson CountyOak Ridge 01 1440EST1450EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)An individual from the public reported a large tree downed by thunderstorm wind near Oak Ridge.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Anderson CountyOak Ridge 01 1445EST1447EST 0 0 0.00K 0.00K Hail (1.75)Broadcast media personnel reported thunderstorms produced hail as large as a golfball at a mall in Oak Ridge.399

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastRoane CountyHarriman 01 1445EST1455EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind in Harriman.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Knox County3 WSW Byrds Chapel 01 1450EST1452EST 0 0 0.00K 0.00K Hail (1.00)Public reported thunderstorms produced quarter-sized hail 5 miles southeast of Oak Ridge near Byrds Chapel.Knox CountyFarragut 01 1450EST1500EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind in Farragut.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Claiborne County1 E Harrogate 01 1530EST1532EST 0 0 0.00K 0.00K Hail (1.00)An individual from the public reported thunderstorms produced quarter-size hail in Harrogate-Shawanee.Knox CountyMascot 01 1610EST1612EST 0 0 0.00K 0.00K Hail (1.50)A NWS employee reported thunderstorms produced ping pong size hail in Mascot.Grainger County6 WSW Bean Station 01 1700EST1702EST 0 0 0.00K 0.00K Hail (1.00)A trained spotter reported thunderstorms produced quarter-size hail 6 miles west-southwest of Bean Station.Grainger CountyRutledge 01 1700EST1710EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Trained spotter reported several limbs and small trees downed by thunderstorm wind in Rutledge.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mcminn CountyEnglewood 01 1725EST1728EST 0 0 0.00K 0.00K Hail (1.00)An individual from the public reported thunderstorms produced quarter-size hail in Englewood.Union CountyMaynardville 01 1728EST1735EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported several trees downed by thunderstorm wind in Maynardville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.400

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastMcminn CountyEtowah 01 1740EST1742EST 0 0 0.00K 0.00K Hail (1.00)Amateur radio personnel reported thunderstorms produced quarter-size hail in Etowah.Mcminn CountyEtowah 01 1800EST1802EST 0 0 0.00K 0.00K Hail (1.00)The public reported thunderstorms produced quarter-size hail in Etowah.Bradley CountyCleveland 01 1925EST1927EST 0 0 2.00K 0.00K Thunderstorm Wind (50MG)A trained spotter reported a measured wind gust to 50kts (58mph) from a thunderstorm in Cleveland.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Bradley CountyCleveland 01 1925EST1935EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)A local newspaper reported trees and powerlines were downed by a thunderstorm wind in Cleveland.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bradley CountyCleveland 01 1953EST1955EST 0 0 0.00K 0.00K Hail (1.25)Public reported thunderstorms produced Kennedy half dollar sized hail in Cleveland.Marion County4 SW Martin Spgs 01 2035CST2045CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported several trees downed by thunderstorm wind 4 miles southwest of Martin Springs nearSequatchie.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bradley County2 S Cleveland 01 2100EST2130EST 0 0 1.00K 0.00K Flash FloodWater up to 3 feet deep covered the road near the intersection of Blue Springs Road and 20th Street SE.A frontal boundary across the area triggered scattered thunderstorms over the region. A few of the storms produced large hailand damaging thunderstorm winds. Flash flooding was also reported.Greene CountyGreeneville 03 1350EST1355EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported a couple of trees and large limbs downed by thunderstorm wind in Greeneville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greene CountyMosheim 03 1410EST1412EST 0 0 0.00K 0.00K Hail (1.00)Emergency management personnel reported thunderstorms produced quarter-size hail in Mosheim.401

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastGreene County3 N Greeneville 03 1410EST1415EST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)A trained spotter reported 2 barns were destroyed by thunderstorm wind 3 miles north of Greeneville.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Greene CountyBaileyton 03 1420EST1430EST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)Emergency manager personnel reported trees and powerline downed by thunderstorm wind near Baileyton.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Greene CountyChuckey 03 1428EST1435EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported several trees downed by thunderstorm wind in Chucky.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greene CountyCaney Branch 03 1445EST1450EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported several trees downed by thunderstorm wind in Caney Branch.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sullivan CountyBlountville 03 1610EST1615EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A trained spotter reported a couple of large trees downed by thunderstorm wind in Blountville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Unicoi County2 ENE Erwin 03 1645EST1745EST 0 0 10.00K 0.00K Flash FloodNearby gauge reported 2.38 inches of rain in 30 to 45 minutes. High water was observed near Erwin Town Hall, wheresandbagging occurred outside, while 6 to 8 inches of water came up into the basement from the sewer lines. Flooding alsooccurred in the Old Farm subdivision, in areas along 7th Street, on Rex Lewis Road, and on Zane Whitson Drive. City officialssaid water rushed through town as fast as it could. Water got inside two police cruisers. A few downtown businesses receivedflood damage.A front tracked into the area triggering thunderstorms during the afternoon hours on the 3rd. A few of the storms produceddamaging thunderstorm wind and large hail.Cocke County2 NE Parrottsville 05 1606EST1610EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Highway department personnel reported multiple trees downed by thunderstorm wind in the Parrottsville area.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Blount CountyWalland 05 1740EST1745EST 0 0 3.00K 0.00K Flash FloodMudslide occurred on Old Walland Highway.402

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastBlount County2 NW Walland 05 1740EST1845EST 0 0 1.00K 0.00K Flash FloodSeveral roads in the area were impassable.Monroe County9 E Madisonville 05 1742EST1845EST 0 0 2.00K 0.00K Flash FloodNumerous road closures reported across the county according to FFS.Unicoi CountyErwin 05 1755EST1855EST 0 0 2.00K 0.00K Flash FloodHigh water closed portions of Highway 81 in Erwin.Unicoi County2 NNE Unicoi 05 1800EST2100EST 0 0 50.00K 0.00K Flash FloodIn and around town of Unicoi. Bedding of the railroad damaged. Serious flooding on Unicoi Drive, Massachusetts Avenue, andPinnacle Road. Several residents were evacuated from Harris Hollow, Pippin Hollow, and Nelson Hollow Roads.Washington County6 SE Jonesboro 05 1800EST2100EST 0 0 500.00K 0.00K Flash FloodSignificant Flash Flooding on Dry Creek. Several houses damaged, one house destroyed. A dozen miniature horses killed on ahorse farm. Some automobiles destroyed. A mudslide uphill at the Methodist Camp may have temporarily dammed waterwhose release contributed to the flash flood. The mudslide carried large rocks and boulders into yards. Water rescues required.No civilian injuries. One water rescue raft flipped, resulting in minor injuries to the rescue team.Washington County1 N Johnson City 05 1800EST2100EST 0 0 25.00K 0.00K Flash FloodMany roads in Johnson City were impassable. Water rescues necessary in downtown. Maintenance garage flooded, with severalbuses stranded. Riverview Drive on the Watauga River in Johnson City was impassable. Flooding reported at Silver CreekApartments. Some downtown businesses were flooded.Carter County1 N Elizabethton 05 1845EST2045EST 0 0 25.00K 0.00K Flash FloodFlooding closed many roads across the city of Elizabethton and the county.A boundary across the area triggered thunderstorms on the 5th. A few of the storms produced damaging thunderstorm wind.But the main damage reports were from the flooding.Marion CountyWhitwell 09 1045CST1055CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few tees downed by thunderstorm wind in Whitwell.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Polk County5 N Reliance 09 1230EST1235EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind 5 miles north of Reliance.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.403

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastMcminn CountyEtowah 09 1255EST1300EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind around Etowah.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Blount County2 S Walland 09 1325EST1330EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind 2 miles south of Walland.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Knox CountyWest Knoxville 09 1405EST1410EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind in West Knoxville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Knox CountyWest Knoxville 09 1435EST1440EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind across the western portions of Knox County.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Grainger County1 SSW Rutledge 09 1455EST1505EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported 1 tree downed by thunderstorm wind on Howell River Road in southwest Rutledge.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Claiborne CountyHarrogate 09 1505EST1510EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind in Harrogate.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hawkins CountySurgoinsville 09 1620EST1625EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind in Surgoinsville.A cold front tracked through the region on the 9th triggering scattered thunderstorms over the area. Several of the stormsproduced damaging thunderstorm wind. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Marion County2 SW Jasper 10 1500CST1505CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees downed by thunderstorm wind in Kimbell 2 miles southwest of Jasper.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.404

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, EastHamilton CountyChattanooga 10 1643EST1650EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a few trees and powerlines downed by thunderstorm wind in Chattanooga.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bradley CountyCleveland 10 1653EST1658EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported powerlines downed by thunderstorm wind in Cleveland.Additional scattered thunderstorms developed on the next day as a frontal boundary lingered over the area. Most of thethunderstorms developed over southeast Tennessee and southwest North Carolina. A few of the storm produced damagingthunderstorm wind. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Sequatchie CountyDunlap 16 2345CST2355CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Law enforcement personnel reported numerous trees downed by thunderstorm wind countywide.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hamilton County3 E Shady Grove 17 0130EST0135EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)TENNESSEE, South CentralLaw enforcement personnel reported a few trees downed by thunderstorm wind 3 miles east of Soddy Daisy.A front tracked through the region producing isolated thunderstorms during the overnight hours on the 16-17th. A few of thestorms produced a damaging thunderstorm wind. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Franklin County1 NNE Estill Spgs 13 1430CST 0 0 15.00K 0.00K LightningA bolt from the blue lightning strike occurred and hit a nearby tree to a home, resulting in lightning damage to the home as thelightning strike spread into the home from the tree. The lightning damage resulted in a few broken windows, televisions, airconditioning, and electrical and phone outlets.A quasi-linear convective system (QLCS) tracked eastward through middle Tennessee and northern Alabama during the latemorning and early afternoon hours. The storms produced brief heavy rainfall, gusty winds and frequent lightning strikes.Franklin CountyEstill Spgs 16 2307CST2308CST 0 0 5.00K 0.00K Thunderstorm Wind (43EG)A few trees were downed by gust front winds along and ahead of the thunderstorms as they were moving through the area.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Franklin CountyWinchester 16 2317CST2318CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)A few trees and power lines were downed by gust front winds along and ahead of thunderstorms moving through the area.A mesoscale convective system over much of middle and western Tennessee dropped south through southern middle Tennesseeshortly after Midnight. The storms produced a large gust front which produced brief but very gusty winds just ahead of the rainand lightning. The gust front knocked a few trees and power lines down in Franklin County. Note: The estimated wind gust of52 knots is equivalent to 60 mph.405

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, WestTNZ001>004-019>021-048>055-088>092Carroll - Chester - Crockett - Decatur - Dyer - Fayette - Gibson - Hardeman - Hardin - Haywood -Henderson - Henry - Lake - Lauderdale - Madison - McNairy - Obion - Shelby - Tipton - Weakley01310000CST2359CST 0 0 0.00K DroughtBeneficial rain during the month of August helped improve drought conditions across portions of West Tennessee near theTennessee River while the rest of West Tennessee missed out on the much needed rain continuing the drought. Severe (D2)drought conditions continued from a line near Huntington, to Jackson, to Somerville. Southeast of this line drought conditionsrelaxed by the end of the month due to the August rains to abnormally dry (D0) to moderate (D1). Meanwhile, extreme (D3)conditions continued across extreme West Tennessee while exceptional (D4) conditions continued across extreme NorthwestTennessee. Many crops in these areas that were planted during the spring struggled to grow due to lack of water. Irreversibledamage was done to the corn crop due to the corn being too far along for any rain to help the ears fill. Soybean and sorghumfields yield potential continued to dwindle as a result of the dry conditions. Many pastures were in poor condition forcingfarmers to feed cattle baled hay. Cattle were beginning to have a hard time finding adequate water sources. Lake and riverlevels remained at low levels. Burn bans were issued for many counties as a result of the dry conditions. Many counties weredeclared federal disaster areas as a result of the drought.Dyer County2 SSE Maxey1 E Newbern03 0552CST0557CST 0 0 0.00K Thunderstorm Wind (50EG)Numerous trees were knocked down and power poles were snapped by straight line winds in Newbern.A cluster of thunderstorms developed over Missouri and moved southeast into West Tennessee during the early morning hoursof August 3, 2012. One storm produced damaging winds in Dyer County. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Weakley County2 SE Dresden 12 1320CST1323CST 0 0 0.00K Dust DevilA dust devil began in a bean field and moved northwest to southeast. It tore apart a fiberglass well housing. The dust devilpicked up a metal burn barrel and spread the contents several hundred feet into the air. Part of a roof was also torn off. Some ofthe debris damaged a brand new car.A dust devil developed in a field in Weakley County and caused some damage near Dresden.Lake CountyTiptonville 13 0600CST0605CST 0 0 0.00K Hail (0.75)Obion CountyObion 13 0615CST0620CST 0 0 0.00K Hail (1.00)Shelby County1 SSW Memphis 13 1713CST1718CST 0 0 0.00K Thunderstorm Wind (50EG)Straight line winds knocked down several trees and snapped several power poles between Lamar Avenue and the I-240 loop.A warm front lifted north through the region during the morning hours of August 13, 2012. An Mesoscale Convective Systemdeveloped over Southern Missouri during the early morning hours and then slid southeast into Northwest Tennessee producingisolated large hail. Later in the day a cold front pushed through triggering more thunderstorms. Damaging winds occurredacross parts of Memphis. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Fayette County2 W Macon 16 2315CST2320CST 0 0 0.00K Hail (1.25)Half dollar size hail fell on Highway 193 in Fayette County.Numerous thunderstorms developed across West Tennessee in response to a cold front moving through the area. One stormbecame severe with large hail.406

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TENNESSEE, WestShelby County1 W Memphis 31 2020CST2025CST 0 0 45.00K 0.00K Thunderstorm Wind (50EG)Straight line winds knocked down a very large tree on to the Vance Avenue Youth Development Center. It landed on thesoutheast section of the center. Two connected modular buildings that were recently renovated were damaged. A wooden deckwas partially crushed and other roof damage led to some damage of the center's electronics.TEXAS, CentralA convective band associated with the remnants of Hurricane Issac moved into the the Memphis metropolitan area during theevening hours of August 31, 2012. A bowing segment of the convective band moved through Downtown Memphis andproduced damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.TXZ049-054-065-072>073-076>078-098>099-113>114-127>128Callahan - Coke - Concho - Crockett - Fisher - Haskell - Jones - Nolan - Runnels - Schleicher - Shackelford- Sutton - Taylor - Throckmorton - Tom Green01310000CST2359CST 0 0 0.00K 0.00K DroughtThe U.S. Drought Monitor issued through the National Drought Mitigation Center on August 28, depicts exceptional toextreme drought across parts of Jones, Haskell, Fisher, Shackleford and Throckmorton Counties. Meanwhile, the lack ofrainfall and very hot conditions have caused the severe drought to expand across the remainder of West Central Texas.According to the Texas Crop Weather Report issued August 21, by the Texas A&M Agriculture Program for the northern BigCountry Region, pastures and rangeland of those counties with exceptional to extreme drought remained in poor condition andwere in need of rain. Stock-water tanks remained low, as did lake levels. Dryland cotton did not look very good. Irrigatedcotton producers reported wells going dry. Over-grazing and lack of moisture took its toll on pastures in some areas, andranchers were selling off more cattle. Some producers were shipping cattle every day. Old trees were dying off in pastures.Surface water supplies are still low across West Central Texas due to limited runoff from rainfall. The City of San Angelo hasenacted drought level two water restriction because of a limited, 14 month water supply. Several other cities including Abilene,Ballinger and Brownwood have also enacted water restrictions because of the dwindling water supplies.Over the rest of West Central Texas the hot, dry conditions continued. Soil-moisture levels continued to decline with highevaporation rates. Most row crops showed severe moisture stress. Although cotton was beginning to bloom, it was alsomoisture stressed. Irrigation continued where water was available. Stock-tank water levels dropping. Supplemental feeding oflivestock further increased.Schleicher County6 S El Dorado Muni Arpt 09 1345CST1350CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)The public reported wind damage along U.S. Highway 277, south of Eldorado. A roof was removed from a pump house, aflagpole was bent over, and a ten foot section of a barn door was blown inward. There was extensive tree damage as well.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Runnels County1 E Winters 12 2030CST2035CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A grain warehouse was damaged in Winters by strong thunderstorm winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Runnels County1 E Winters 12 2032CST2037CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated thunderstorm winds at 60 mph as it broke some tree limbs near Winters.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.407

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, CentralTom Green County1 E Wall 12 2116CST2121CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A National Weather Service employee reported a 60 mph wind gust in Wall.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Runnels CountyMiles 12 2123CST2128CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A member of the public estimated a 60 mph wind gust near Miles.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tom Green County1 E Wall 12 2147CST2151CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A National Weather Service employee reported a 60 mph wind gust in Wall.On August 9th, an isolated thunderstorm produced damaging downburst winds near Eldorado. On August 13th, a small line ofthunderstorms produced wind damage near Ballinger, Winters and Wall. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Shackelford CountyMoran 18 1800CST1805CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)TEXAS, Central SoutheastA trained spotter reported broken six inch diameter tree limbs near Moran along State Highway 6.A thunderstorm produced an isolated downburst near Moran. Note: The estimated wind gust of 52 knots is equivalent to 60mph.Brazos County3 SE Bryan 07 1645CST 0 0 0.00K Thunderstorm Wind (50EG)Severe thunderstorm winds downed a tree and some large tree branches near KBTX in College Station.Isolated late afternoon thunderstorms developed across southeast Texas, and one produced strong winds that caused somedamage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Walker County2 NNW New Waverly 10 1515CST 0 0 0.00K Hail (0.88)Walker County4 S East Sandy 10 1515CST1520CST 0 0 0.00K Thunderstorm Wind (56EG)Trees and power lines were downed along FM 1375 and other areas in the southern part of Walker County.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Montgomery County3 N Montgomery 10 1553CST1556CST 0 0 0.00K Thunderstorm Wind (55EG)Trees were downed north of Montgomery along from FM 149 up to FM 1791.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Montgomery County1 WNW Montgomery 10 1600CST 0 0 0.00K 0.00K Hail (0.75)Penny size hail was reported near the intersection of FM 149 and Eva Street.408

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, Central SoutheastMontgomery County1 SE Montgomery 10 1613CST1620CST 0 0 7.00K 0.00K Thunderstorm Wind (50EG)Power lines were downed between Montgomery and Lake Conroe.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Montgomery County2 NE Karen 10 1640CST1650CST 0 0 0.00K Thunderstorm Wind (55EG)Trees were downed between Montgomery and Magnolia.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Washington County1 W Berlin 10 1640CST 0 0 0.00K Thunderstorm Wind (50EG)Trees were downed between Burton and Brenham.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Waller County3 NNE Prairie View 10 1700CST 0 0 0.00K Thunderstorm Wind (50EG)Trees were downed, mostly around the intersection of Mayer Road and FM 1488.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Austin CountyBellville Arpt 10 1720CST 0 0 0.00K Thunderstorm Wind (55EG)Trees were downed in the Line Street area.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Harris County6 NNW Katy 10 1810CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Large tree limbs stripped off trees near the intersection of Katy Hockley Road and Longenbaugh Road.Scattered strong thunderstorms developed along a surface trough that moved southward through the region ahead of anapproaching cold front. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chambers County1 N Eminence 17 1505CST1510CST 0 0 0.00K 0.00K Funnel CloudTwo funnel clouds were sighted in association with slow east and northeast moving thunderstorms.A couple of funnel clouds were sighted in Chambers County near outflow boundaries.Montgomery County1 SSW Magnolia 18 1717CST 0 0 0.00K Thunderstorm Wind (53EG)Trees were downed near the intersection of FM 1774 and FM 1488.Two early evening thunderstorms merged, became severe, and produced some wind damage. Note: The estimated wind gust of53 knots is equivalent to 61 mph.Chambers County1 E Beach City 21 1650CST1652CST 0.4 20 0 0 0.00K 0.00K Tornado (EF0)A waterspout moved inland near Beach City and produced no damage before dissipation.A waterspout moved inland near Beach City. There was no damage.409

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, Central SoutheastTrinity County2 SE Groveton 31 1730CST 0 0 0.00K Thunderstorm Wind (55EG)Trees downed near the intersection of FM 355 and Highway 287.TEXAS, Extreme WestTXZ422A severe thunderstorm developed, moved to the northeast, and produced some wind damage. Note: The estimated wind gust of55 knots is equivalent to 63 mph.Southern Hudspeth Highlands01310000MST2359MST 0 0 0.00K 0.00K DroughtA small area of Hudspeth County remained in Severe Drought through the month while the remainder of Far West Texasremained in Moderate(D1) or Abnormally Dry(D0) drought.Hudspeth County15 NNE Fiedra 16 1630MST1730MST 0 0 Heavy RainA local spotter reported 0.80 inches of rainfall in just under one hour resulting in minor flooding of nearby fields.A cold front dropping in from the northeast combined with an increasing low level moist flow from the south to spark scatteredslow moving thunderstorms.El Paso County(ELP)El Paso Intl Ar 23 1700MST1730MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)The ELP ASOS at El Paso International Airport reported a thunderstorm wind gust of 61 mph in association with a severethunderstorm.Note: The measured wind gust of 53 knots is equivalent to 61 mph.El Paso County3 WNW Tobin 23 1720MST1810MST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)TEXAS, Mid-SouthA trained spotter reported a 67 mph thunderstorm wind gust along with 1.12 inches of rain in 50 minutes as a severethunderstorm moved past.A very moist air mass remained in place across the region as a result of the seasonal monsoon flow. An upper level disturbancemoved in from the northwest and managed to destabilize the atmosphere and resulted in numerous strong to severethunderstorms. Note: The measured wind gust of 58 knots is equivalent to 67 mph.TXZ232-239>244Bee - Duval - Jim Wells - Kleberg - Nueces - San Patricio - Webb01310000CST2359CST 0 0 0.00K 0.00K DroughtA strong upper level high pressure system persisted over South Texas for much of the month of August. Record breaking heatoccurred over portions of South Texas with the average temperature at Corpus Christi International Airport ranked as thehottest August on record. Below normal to well below rainfall was received across the region because of the upper level highpressure system. A couple of rainfall events occurred over the Victoria Crossroads into the northern Coastal Bend where 1 to 2inches of rain fell during the month. But rainfall for the month was 2 to 3 inches below normal for all of South Texas.The severe drought persisted over southern portions of the Brush Country east into the Coastal Bend and deteriorated toexceptional drought from southern Duval County eastward to Kleberg County by the end of the month. The abundant rainsfrom July sustained the northern portions of the Brush Country to the Victoria Crossroads during the month.The combined capacity of the Corpus Christi reservoir system approached 40 percent during the month. Voluntary waterrestrictions continued for the city of Corpus Christi but mandatory water restrictions go into effect once the capacity falls below40 percent. The city of Laredo was also under voluntary water restrictions. Different stages of water restrictions continued forBeeville, Point Comfort, Alice, and King Ranch Santa Gertrudis District.410

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, Mid-SouthSoil moisture levels fell to short to very short over the southern Coastal Bend into the western Brush Country. The extremelyhot temperatures continued to dry out range land, pastures, and stock ponds.TEXAS, NorthTXZ101>103-158-174Bell - Denton - Jack - Milam - Wise01200000CST2359CST 0 0 0.00K 0.00K DroughtSome counties in the northwestern and southern portions of the region began the month in severe drought (D2), but beneficialrainfall in the middle of the month improved conditions.TXZ133Johnson02 1330CST1636CST 0 0 15.0K 0.00K WildfireA 250-acre grass fire between Keene and Cleburne burned 3 barns.Milam CountyCameron 05 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (26EG)A report from the Milam County Sheriff's Office confirmed that weather played a role in the death of a 50-year old Georgiaman competing in a paragliding competition. The event was called off due to rain and wind moving in from the east, but theman did not return. He was found the next day along CR 202; west of Cameron. The nearby AWOS at Cameron MunicipalAirport (KT35) recorded a 29 mph wind gust.A 50-year old man died in a paragliding accident in Milam County. Weather was determined to be a factor in his fatal accidentas rain and strong winds were occurring in the area. Note: The estimated wind gust of 26 knots is equivalent to 30 mph.Denton County2 E Krum 06 1415CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A power pole was reported down and shingles were reported blown off of a roof.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Collin CountyProsper 06 1430CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A 60 MPH wind gust was reported by a storm spotter in Prosper. Several trees approximately 4 inches in diameter were blowndown.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Collin County1 SSW Rhea Mills 06 1436CST 0 0 8.00K 0.00K Thunderstorm Wind (55EG)A garage door was blown in and street signs twisted near the intersection of FM 1461 and FM 2478 in Prosper. In addition,large tree limbs were also snapped off trees.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Wise County2 E Newark 06 1700CST 0 0 200.00K 0.00K LightningA home in the Chisholm Springs subdivision in Newark, TX was struck by lightning. The bolt set the house on fire, destroyingit. Three girls inside the home escaped without injury.Lamar County1 NNW Givens1 E Paris06 1700CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)A downburst caused damage on the east side of Paris. Power lines and trees were knocked down, and roof and minor buildingdamage was sustained to a few buildings; including the CVS pharmacy near Lamar Avenue and Highway 271. The metalroofedgarage next to a home on Smallwood Road was destroyed.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.411

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthLamar County2 WNW Rockwell 06 1725CST 0 0 2.00K 0.00K Thunderstorm Wind (35EG)Paris PD reported downed power lines in the road and tree limbs blocking roads.Isolated storms during the afternoon of Monday August 6th caused some minor wind damage over locations north andnortheast of the Dallas-Fort Worth area. Lightning from one storm sparked a house fire in the town of Newark, TX in southernWise County, destroying the home. Note: The estimated wind gust of 35 knots is equivalent to 40 mph.TXZ092>095-100-104-115>119Collin - Cooke - Dallas - Fannin - Grayson - Lamar - Palo Pinto - Parker - Stephens - Tarrant - Young07200000CST2359CST 0 0 0.00K 0.00K DroughtDrought conditions spread across the northern portions of the region during the early part of the month, but beneficial rainfall inthe middle of the month improved conditions.TXZ116Palo Pinto07 1100CST1500CST 0 0 0.00K 0.5K WildfireTwo large fires burned in Palo Pinto County during the first half of the month; very near and even over locations that wereburned by the massive grass fires in 2011. The Rhodes Ranch II fire began on the 7th and burned nearly 2000 acres before itwas controlled on the 21st. The Dark Horse Fire began on the 9th and burned approximately 1700 acres before it was controlledon the 21st. The only damage caused by either fire was to a well site by the Dark Horse Fire. In addition, a 3rd and muchsmaller fire burned some hay bales on the 7th.Grayson County10 SSE Whitesboro 07 1320CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Emergency manager reported one outbuilding was destroyed, and two saltwater containment tanks damaged or destroyed.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Erath County(SEP)Clark Fld Steph 07 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)A wind gust of 62 MPH was reported at Clark Field.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Erath County1 S (SEP)Clark Fld Steph 07 1600CST 0 0 5.00K 0.00K Thunderstorm Wind (54MG)Roof damage was reported 1 mile south of Clark Field in Stephenville.A second consecutive day of isolated afternoon storms produced spotty downburst wind damage and quarter sized hail aroundthe area. Note: The measured wind gust of 54 knots is equivalent to 62 mph.TXZ116Palo Pinto07211600CST0731CST 0 0 0.00K 0.00K WildfireTwo large fires burned in Palo Pinto County during the first half of the month; very near and even over locations that wereburned by the massive grass fires in 2011. The Rhodes Ranch II fire began on the 7th and burned nearly 2000 acres before itwas controlled on the 21st. The Dark Horse Fire began on the 9th and burned approximately 1700 acres before it was controlledon the 21st. The only damage caused by either fire was to a well site by the Dark Horse Fire. In addition, a 3rd and muchsmaller fire burned some hay bales on the 7th.Rockwall CountyMc Lendon 07 1734CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)A 62 MPH wind gust was reported on the east side of Heath.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.412

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthVan Zandt County2 SW Redland 07 1755CST 0 0 0.00K 0.00K Hail (1.00)A storm spotter reported 1 inch diameter hail.Henderson County3 N Evelyn 07 1802CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail was reported near Chandler.Dallas County2 SE Hutchins 07 1819CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail was reported by a storm spotter near the intersection of Interstate 45 and Wintergreen Rd.A second consecutive day of isolated afternoon storms produced spotty downburst wind damage and quarter sized hail aroundthe area.Mclennan CountyChina Spg 08 1240CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees and power lines were blown down by thunderstorm winds in China Spring.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Anderson County1 N Springfield 08 1440CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees down and part of a barn blown into the road; blocking FM 837 near Springfield.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Anderson County2 NNE Kossuth 08 1530CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A storm spotter reported large limbs blocking highway 84 8 miles east of Palestine.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Parker County8 S Aledo 08 1813CST 0 0 0.00K 0.00K Hail (0.88)Winds of 50 to 60 MPH winds and nickel sized hail was reported near Bear Creek Community Church.Parker County8 S Aledo 08 1813CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Winds of 50 to 60 MPH and nickel sized hail was reported near Bear Creek Community Church.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Parker County9 S Aledo 08 1820CST 0 0 0.00K 0.00K Hail (1.00)Lamar County1 W Garretts Bluff6 SSW BraodwayOne-inch diameter hail was reported 9 miles south of Aledo.08 1925CST2015CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported trees down throughout the western portions of the county. A severe thunderstorm crossed the RedRiver moving northwest to southeast across the county.Scattered thunderstorms developed along a subtle surface boundary situated across the southern counties of North Texas. Thesestorms produced wind damage. Later that evening, a complex of storms over eastern Oklahoma pushed south, producing morewind damage as it crossed the Red River into Lamar County. Note: The estimated wind gust of 52 knots is equivalent to 60mph.413

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthTXZ116Palo Pinto09211100CST0731CST 0 0 1.0K 0.00K WildfireTwo large fires burned in Palo Pinto County during the first half of the month; very near and even over locations that wereburned by the massive grass fires in 2011. The Rhodes Ranch II fire began on the 7th and burned nearly 2000 acres before itwas controlled on the 21st. The Dark Horse Fire began on the 9th and burned approximately 1700 acres before it was controlledon the 21st. The only damage caused by either fire was to a well site by the Dark Horse Fire. In addition, a 3rd and muchsmaller fire burned some hay bales on the 7th.Coryell County2 E Gatesville 09 1527CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Emergency management reported winds estimated at 50 to 60 MPH in Gatesville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Coryell CountyGatesville 09 1530CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Photos of tree damage and tin roof damage were relayed from broadcast media via NWS chat.Conditions were quiet across most of the region, but isolated strong thunderstorms developed over Coryell County, as well asin the Paris, TX area Thursday afternoon. Minor wind damage was reported in the Coryell County storm near the town ofGatesville. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.TXZ131Hood10 1400CST1800CST 0 0 0.00K 0.00K WildfireTXZ102Wise12151530CST2300CST 0 0 0.00K 0.00K WildfireA few days of warm and dry weather resulted in some grass fires that did some damage. The Lometa Ranch fire burned over2000 acres in Lampasas County. A small fire near Springtown in Parker County burned two homes.Cooke County2 SSE Lindsay 12 1603CST 0 0 0.00K 0.00K Hail (1.00)One-inch diameter hail was reported.Wise County2 W Bridgeport Muni Arpt 12 1615CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported that a roof was blown off of a 4 unit apartment complex.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cooke County1 SE Windsor 12 1617CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)A storm spotter reports that large branches are blown down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wise CountyBridgeport 12 1630CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported that a large metal roof was blown off of a building in downtown Bridgeport.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.414

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthCooke County4 N Valley View 12 1632CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)Winds estimated at 60 MPH blew a semi truck onto a pickup. This occurred on southbound Interstate 35 at exit 491. Theinterstate was closed following the accident.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Cooke County1 E Valley View 12 1634CST 0 0 5.00K 0.00K Hail (1.75)Golf ball sized hail was reported by amateur radio.Cooke CountyValley View 12 1635CST 0 0 0.00K 0.00K Hail (1.00)One-inch diameter hail was reported by amateur radio.Denton County3 W Bolivar 12 1700CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A storm spotter estimated a 60 mph gust.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wise County5 E Decatur Muni Arpt 12 1701CST 0 0 5.00K 0.00K Thunderstorm Wind (57EG)A storm spotter measured a 66 MPH wind gust out of the northwest.Note: The estimated wind gust of 57 knots is equivalent to 66 mph.Denton County3 NNE Stony 12 1708CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Emergency management reported that 20 to 30 trees were blown down just west of Krum.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Denton County1 N Krum 12 1738CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)A storm spotter reported that three to four inch diameter tree branches were blow down just north of Krum.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tarrant County2 ESE Eagle Mtn Lake 12 1745CST 0 0 210.00K 0.00K Thunderstorm Wind (52EG)Roof and dock damage was reported to two boat docks at the Lake Country Marina on the east side of Eagle Mountain Lake.The two boat docks broke free, and the metal roof of one of the docks was twisted. About 40 boats tied to the docks sustained atleast minor damage. About 10 people were stranded on the docks and had to be rescued.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tarrant CountyEagle Mtn Lake 12 1746CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Amateur radio reported that 3 inch diameter tree limbs were blown down near Eagle Mountain Lake.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Tarrant CountySaginaw 12 1756CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Amateur radio reported a wind gust of 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.415

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthTarrant County2 NNW (FTW)Meacham Arpt Ft12 1800CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)A storm spotter reported street signs blown down and billboards ripped off.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Tarrant County1 W (FTW)Meacham Arpt Ft 12 1801CST 0 0 1.00M 0.00K Thunderstorm Wind (66MG)A 76 MPH wind gust was measured at Fort Worth Meacham Airport. Twelve aircraft on the field sustained damage, with threeof the aircraft sustaining serious damage. A Cessna was carried over a fence by the strong winds. In addition, ten hangars weredamaged; two of them sustaining serious damaged. Damage estimates over $1 million were estimated.Note: The measured wind gust of 66 knots is equivalent to 76 mph.Tarrant CountySaginaw 12 1802CST 0 0 15.00K 0.00K Thunderstorm Wind (58MG)A storm spotter reported a 67 mph wind gust.Note: The measured wind gust of 58 knots is equivalent to 67 mph.Tarrant County2 SSW Westover Hills 12 1808CST 0 0 10.00K 0.00K Thunderstorm Wind (58MG)A wind gust of 67 MPH was measured at the Naval Air Station Joint Reserve Base (KNFW). Large tree limbs and at least onepower pole was knocked down.Note: The measured wind gust of 58 knots is equivalent to 67 mph.Tarrant County1 S Hodge 12 1810CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Broadcast media reported damage to a factory building on North Main Street. The awning at Maverick Fine Western Wear wasknocked down. Other minor damage was reported in the Fort Worth Stockyards.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Tarrant County2 SW Watauga 12 1815CST 0 0 10.00K 0.00K Thunderstorm Wind (63MG)A wind gust of 73 MPH was measured at the Dallas/Fort Worth National Weather Service Forecast Office.Note: The measured wind gust of 63 knots is equivalent to 72 mph.Johnson County2 W Retta 12 1847CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)Spotters reported roofs blown off several trailers.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Johnson County3 NW Venus 12 1903CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)Metal buildings were reported damaged 3 miles Northwest of Venus, TX.Note: The estimated wind gust of 55 knots is equivalent to 63 mph.Ellis County3 WNW Ward 12 1913CST 0 0 10.00K 0.00K Thunderstorm Wind (70MG)A storm spotter reported an 80 MPH wind gust 4 miles northeast of Venus.Note: The measured wind gust of 70 knots is equivalent to 81 mph.Johnson CountyAlvarado 12 1915CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)Wind removed the roof from a house.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.416

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthComanche CountyComanche Co Arpt 12 1955CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG)A 69 MPH wind gust was measure at the Comanche County Airport (KMKN).Note: The measured wind gust of 60 knots is equivalent to 69 mph.Delta CountyCooper 12 2053CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Law enforcement reported tree damage in Cooper.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Hopkins CountySulphur Spgs 12 2130CST 0 0 10.00K 0.00K Thunderstorm Wind (54EG)Law enforcement reported large trees blown down throughout the city of Sulphur Springs.Thunderstorms developed ahead of a weak late summer cold front as it sagged southward into the Red River region. Stormsproduced downburst winds and hail in Cooke County near the Red River, then became a severe wind threat as the activityshifted south into the Fort Worth area. Wind gusts exceeding 70 MPH were reported at the WFO in Fort Worth and at FortWorth Meacham International Airport. Significant damage occurred to 12 airplanes and 10 hangars at the airport with thedamage estimated near $1 million. At Eagle Mountain Lake, two boat docks were torn free and about 40 boats sustained at leastminor damage. Note: The estimated wind gust of 54 knots is equivalent to 62 mph.TXZ117-156Lampasas - Parker13 1500CST1600CST 0 0 370.0K 0.00K WildfireA few days of warm and dry weather resulted in some grass fires that did some damage. The Lometa Ranch fire burned over2000 acres in Lampasas County. A small fire near Springtown in Parker County burned two homes.TXZ106-107Delta - Hopkins14200000CST2359CST 0 0 0.00K 0.00K DroughtBrief Severe drought (D2) conditions developed in Delta and Hopkins County, but then beneficial rainfall around the middle ofthe month quickly improved conditions to Moderate drought (D1).Grayson County(F39)Sherman-Denison 14 1752CST 0 0 7.00K 0.00K Thunderstorm Wind (64MG)A 74 MPH wind was measured at North Texas Regional Airport (KGYI).Note: The measured wind gust of 64 knots is equivalent to 74 mph.Grayson CountyDenison 14 1808CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A 60 mph wind gust was estimated in Denison.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Grayson CountyDenison 14 1812CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Sixty-two MPH winds were estimated near Downtown Denison. Large tree limbs were knocked down in the city; includingMorgan Street.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Young County1 SSE Olney 14 1817CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)417

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthThe Emergency Manager estimated 55-60 MPH winds in Olney. Some damage was reported on the south and southwest side oftown around Mockingbird and Thomas Streets. Some trees were uprooted and a few homes had minor roof and porch damage.One carport was also damaged and part of the roof of one home was torn off. In addition, some power poles were eitherknocked over or broken along Highway 79 South and around the South Terrace Apartments. These strong winds were likely theresult of a downburst from a storm that skirted the south side of the town.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Jack CountyJacksboro 14 1835CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)Strong thunderstorm winds blew a silo onto a building in Jacksboro. A gas station in the city was also damaged.Thunderstorms developed near a warm front as it was retreating north towards the Red River. Hot temperatures over 100degrees were resulting in moderate instability near the boundary, and a shortwave moving through the Central Plains providedadded lift for the development of severe storms. A few severe storms produced strong wind gusts from Olney to Sherman. A 74mph wind gust was measured at North Texas Regional Airport (KGYI) in Grayson County. A downburst produced damage onthe outskirts on Olney. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Rockwall County1 SW Royse City 15 0200CST 0 0 50.00K 0.00K Thunderstorm Wind (35EG)A church that was being built on Erby Campbell Blvd in Royse City was knocked down by strong thunderstorm winds. Onlythe wood frame of the building was in place at the time.A church that was being built on Erby Campbell Blvd in Royse City was knocked down by strong winds. Note: The estimatedwind gust of 35 knots is equivalent to 40 mph.Tarrant County1 W Poltechniec 17 1820CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail was reported near Beach Street and Interstate 30 on the east side of Fort Worth.Hamilton CountyHamilton Muni Arpt 17 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)A 59 MPH wind gust was measured at Hamilton Municipal Airport (KMNZ).Note: The measured wind gust of 51 knots is equivalent to 59 mph.Dallas CountyLancaster Arpt 17 1901CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)A 60 MPH wind gust was measured at Lancaster Airport (KLNC).Note: The measured wind gust of 52 knots is equivalent to 60 mph.Hopkins CountyCumby 17 1940CST1958CST 0 0 0.00K 0.00K Hail (1.00)Pea to quarter sized hail fell for approximately 20 minutes in Cumby.Collin County1 ESE Shepton 17 2052CST2058CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail lasted for 6 minutes at Park Blvd and Ohio Dr in Plano.Collin CountyShepton 17 2053CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail was reported near Preston Road and Park Blvd in Plano.418

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthCollin County2 SW Shepton 17 2054CST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail and 40 MPH winds were reported in southwest Collin County; approximately 2 miles north of AddisonAirport.Collin County2 ESE Shepton 17 2100CST 0 0 0.00K 0.00K Hail (1.25)Half dollar sized hail was reported in west Plano.Collin County3 NE Shepton 17 2113CST 0 0 2.00K 0.00K Hail (1.50)Ping pong ball sized hail was reported at Coit Rd and Spring Creek Pkwy in Plano.Collin County4 NNW Plano 17 2115CST 0 0 0.00K 0.00K Hail (0.88)Nickel sized hail was reported at Independence Pkwy and Legacy Dr in Plano.Thunderstorms erupted across the western and eastern counties of the CWA. Across the western counties, a subtle convergenceboundary provided an initiation point, but instability was the highest over the eastern counties where scattered afternoon stormsdeveloped. Most of the storms this day were pulse-like storms due to weak deep layer wind shear. A few strong to severestorms over the eastern half of the CWA produced hail ranging from nickel to ping pong size.Mclennan County1 N WestLorena18 0830CST1700CST 0 0 65.00K 0.00K Heavy RainScattered to numerous showers and thunderstorms throughout the day produced rain-slicked roads across the area. According tothe Texas Department of Public Service in McLennan County, 13 minor accidents were reported along I-35 in the county. Fivepeople were transported to the hospital with minor injuries.Somervell County1 NNE Glen Rose 18 1400CST 0 0 20.00K 0.00K Heavy RainScattered to numerous showers and thunderstorms throughout the day produced rain-slicked roads across the area. A threevehicleaccident occurred in Glen Rose near the Sonic Drive-In. Three people were sent to the hospital; one in criticalcondition. The cause of the accident was hydroplaning due to heavy rain at the time.Hood County2 W Acton 18 1405CST 0 0 18.00K 0.00K Thunderstorm Wind (43EG)Strong thunderstorm winds knocked down a steel roof and metal rack onto 3 vehicles, damaging the cars.Note: The estimated wind gust of 43 knots is equivalent to 49 mph.Tarrant County2 SE Benbrook Lake 18 1430CST 0 0 15.00K 0.00K LightningLightning struck Rednecks Bait and Tackle in Crowley, setting fire to part of the store. The bolt also struck the owner who wasinside the shop at the time. The man was checked on scene and released.Montague CountySt Jo 18 1450CST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)Medium sized tree limbs, utility lines, and occasional minor roof damage was reported in St. Jo.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.419

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthCooke County1 SE Rosston 18 1537CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)Dallas County1 SSE Meaders3 N ReinhardtSixty MPH winds were measured with a hand-held anemometer.Note: The measured wind gust of 52 knots is equivalent to 60 mph.18 1639CST1930CST 0 0 200.00K 0.00K Flash FloodNorthwest Highway at Hillcrest Road was closed due to high water. It was also reported that several cars were flooded out inseveral streets in the northeast portions of Dallas. Rainfall totals as high as 2 in 30 minutes were measured during the heavyrain event.Dallas CountyDallas 18 1700CST1930CST 0 0 50.00K 0.00K Flash FloodMultiple roads were being closed in Downtown Dallas due to flash flooding. Rainfall totals as high as 2 in 30 minutes weremeasured during the heavy rain event.Dallas County1 SSE Irving 18 1700CST1930CST 0 0 60.00K 0.00K Flash FloodHeavy rainfall flooded Trinity View Park and its parking lot, trapping a few visitors in the park. Several cars were flooded up tothe door of the car, and three visitors had to be rescued by the Fire Department.Tarrant County3 NW Keller 18 1709CST1900CST 0 0 0.00K 0.00K Flash FloodA creek near Alta Vista Road and Keller Haslet Road in north Fort Worth overflowed its banks. A bridge near the intersectionwas impassable. Rainfall totals as high as 2 in 30 minutes were measured during the heavy rain event.Dallas County2 NNW Dallas 18 1712CST1930CST 0 0 200.00K 0.00K Flash FloodHall Street by Baylor Hospital in Dallas was flooded due to flash flooding. One fire truck and several vehicles parked on thestreet stalled in this area. Water also inundated the hospital parking garage where about 20 vehicles were damaged by the risingwaters. Rainfall totals as high as 2-2.25 in 30 minutes were measured during the heavy rain event.Dallas County3 WNW Gribble 18 1728CST1930CST 1 0 30.00K 0.00K Flash FloodNumerous high water rescues were reported around the city of Dallas as the roadways filled with water from heavy rainfall.Rainfall totals as high as 2 in 30 minutes were measured during the heavy rain event. It was also reported that the entrance toDallas Love Field (KDAL) was closed due to high water. A 38-year old male drowned while attempting to fish in White RockCreek near Samuell Blvd and Interstate 30 in East Dallas. The man was attempting to cross the creek, slipped, and fell into therapidly flowing creek. M38IWDenton County3 SSW Justin 18 1730CST1900CST 0 0 0.00K 0.00K Flash FloodHighway 114 near the Texas Motor Speedway was flooded under Highway 156. Rainfall totals as high as 2 in 30 minutes weremeasured during the heavy rain event.Tarrant County3 N Keller 18 1730CST1900CST 0 0 0.00K 0.00K Flash FloodFlash flooding closed Highway 377 in Keller, approximately 1/4 mile north of Keller Haslet Road.420

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NorthDenton County3 S Roanoke Vly Arpt3 WSW Roanoke18 1741CST1900CST 0 0 20.00K 0.00K Flash FloodFour people were trapped in high water under the railroad bridge near Byron Nelson Blvd and Highway 377 in Roanoke.Rainfall totals as high as 2 in 30 minutes were measured during the heavy rain event.Tarrant County2 SW Ft Worth 18 1810CST1945CST 0 0 50.00K 0.00K Flash FloodSeveral cars were stalled near West Vickery Blvd and Clover Lane in southwest Fort Worth. High water was also reported atHulen Street and I-30, Hulen St and Camp Bowie Blvd, and Bledsoe and Currie streets. Rainfall totals as high as 2 in 30minutes were measured during the heavy rain event.Denton County8 SW Justin1 SW Grapevine Res18 1900CST2330CST 0 0 0.00K 0.00K FloodAreal flooding continued for several hours after scattered to numerous thunderstorms producing heavy rainfall produced flashflooding in southern Denton County. Between 1-3 of rain had fallen over the area; resulting in the flooding of several creeks,underpasses, and streets.Tarrant County1 NW Westland4 NNW Forest Hill18 1900CST2330CST 1 0 0.00K 0.00K FloodAreal flooding continued for several hours after scattered to numerous thunderstorms producing heavy rainfall produced flashflooding in Tarrant County. Most of the areal flooding occurred over the northern half of the county. Between 1-4.5 of rain hadfallen over the area; resulting in the flooding of several creeks, underpasses, and streets. At about 10:15 pm CDT, a 33-year oldman drowned in a swift moving creek near Trammel Davis Road and South Norwood Drive in Fort Worth. The man steppedinto the creek to cool off and was swept off his feet. M33IWDallas County1 NNW Bobwyn1 NW Garland18 1930CST2330CST 0 0 100.00K 0.00K FloodAreal flooding continued for several hours after scattered to numerous thunderstorms producing heavy rainfall produced flashflooding in the cities of Dallas and Irving. Up to 3.5 of rain had fallen over the city; resulting in the flooding of several streetsand creeks. During the evening hours, part of the roof at the Urban Inter-Tribal Center of Texas in the Oak Cliff area collapsedunder the weight of the heavy rain that had fallen earlier. As the roof collapsed, the windows in the front blew out.Numerous showers and thunderstorms produced heavy rainfall over the Dallas/Fort Worth area; resulting in flash flooding inDallas, Tarrant, and southern Denton County. Rainfall rates up to 2 in 30 minutes were measured during the event. Arealflooding continued for several hours after the rain had ended. Two males drowned in swollen creeks; one in the city of Dallas,and the other in the city of Fort Worth. In addition, there was one roof collapse in the city of Dallas due to the heavy rainfall.TEXAS, North PanhandleTXZ005Lipscomb03 1856CST2230CST 0 0 0.00K 0.00K WildfireA large wildfire began around 1856 CST about seven miles west northwest of Lipscomb, Texas in Lipscomb County in thenortheast Texas Panhandle. The wildfire was located just south of Duke Road between County Road 10 and County Road 11and was caused by lightning. The wildfire consumed an estimated seven hundred acres and one home and two other structureswere saved. There was no damage and no injuries or fatalities. The wildfire was reported to be contained around 2230 CST anda total of eight fire agencies responded to the wildfire.Potter County4 NW Amarillo 07 1730CST1731CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)The thunderstorm wind gusts damaged solar panels, however there were no reports of injuries or fatalities.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.421

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, North PanhandleRandall CountyPalo Duro Canyon State Park 07 1838CST1839CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A park ranger with the Texas Parks and Wildlife Department at Palo Duro Canyon State Park estimated strong thunderstormwind gusts. There was no damage reported and no reports of injuries or fatalities.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Wheeler County2 SW New Mobeetie 07 1851CST1852CST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)The thunderstorm wind gusts caused damage to a center pivot system. There were no reports of injuries or fatalities.Note: The estimated wind gust of 70 knots is equivalent to 81 mph.Gray CountyAlanreed 07 2005CST2006CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)The public estimated the thunderstorm wind gusts at the Alanreed Travel Center located at mile marker 135 on Interstate 40.There was no damage reported and there were no injuries or fatalities.Severe thunderstorms developed and moved across the south central and southeastern Texas Panhandle during the eveninghours producing damaging thunderstorm wind gusts. There were no reports of injuries or fatalities. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Gray County4 S Pampa 14 1500CST1501CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)The thunderstorm wind gusts shifted small outbuildings off of their foundations, overturned one camping trailer and causedanother camping trailer to be moved, and also caused fencing to be moved across a roadway. There were no reports of injuriesor fatalities.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Gray CountyLefors 14 1522CST1523CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)The thunderstorm wind gusts blew down power lines and large tree limbs. There were no reports of injuries or fatalities.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Gray County3 E Mc Lean 14 1532CST1533CST 0 0 8.00K 0.00K Thunderstorm Wind (65EG)The thunderstorm wind gusts snapped five to six power poles along Interstate 40 and there was an interstate exit sign that wasblown down. There were no reports of injuries or fatalities.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Gray County1 ENE Mc Lean 14 1535CST1536CST 0 0 0.00K 0.00K Thunderstorm Wind (72MG)Note: The measured wind gust of 72 knots is equivalent to 83 mph.Collingsworth CountySamnorwood 14 1609CST1610CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)Severe thunderstorms moved across the east central Texas Panhandle during the late afternoon and early evening hours andproduced damaging thunderstorm wind gusts. There were no reports of injuries or fatalities. Note: The measured wind gust of56 knots is equivalent to 64 mph.422

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, North PanhandleRandall County3 NW Timbercreek Canyon 18 1656CST1657CST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)Note: The measured wind gust of 62 knots is equivalent to 71 mph.Randall County1 NNW Canyon 18 1711CST1712CST 0 0 0.50K 0.00K Thunderstorm Wind (52MG)The thunderstorm wind gust downed three to five inch tree limbs in the Hunsley Hills area of Canyon, Texas. There were noreports of injuries or fatalities.Severe thunderstorms moved across the south central Texas Panhandle during the early evening hours producing thunderstormwind gusts. There was some tree limb damage due to the thunderstorm wind gusts, however there were no reports of injuries orfatalities. Note: The measured wind gust of 52 knots is equivalent to 60 mph.Deaf Smith County4 SSW Hereford 20 1628CST1630CST 0 0 0.00K 0.00K Hail (1.75)Deaf Smith County1 S Hereford 20 1640CST1642CST 0 0 0.00K 0.00K Hail (1.00)Potter CountyValle De Oro 20 1710CST1712CST 0 0 0.00K 0.00K Hail (1.00)Potter CountyValle De Oro 20 1712CST1714CST 0 0 0.00K 0.00K Hail (0.75)Potter CountyValle De Oro 20 1723CST1725CST 0 0 0.00K 0.00K Hail (0.88)Hartley County4 N Channing 20 1737CST1738CST 0 0 6.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm wind gusts downed or snapped six power poles four miles north of Channing Texas in Hartley county. Therewere no reports of injuries or fatalities.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Oldham CountyVega 20 1755CST1756CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)Thunderstorm wind gusts caused damage to the roof of a gas station and also overturned a tractor trailer. There were no reportsof injuries or fatalities.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Potter County3 ENE Bushland 20 1822CST1823CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.Potter CountyAmarillo 20 1832CST1833CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)Note: The measured wind gust of 55 knots is equivalent to 63 mph.423

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, North PanhandlePotter County2 SW Amarillo 20 1835CST1836CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts caused significant tree damage with some big trees leaning and or downed in the Amarillo Collegearea. There were no injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Randall County2 S Amarillo 20 1838CST1839CST 0 0 0.00K 0.00K Thunderstorm Wind (67MG)Note: The measured wind gust of 67 knots is equivalent to 77 mph.Randall County2 S Amarillo 20 1838CST1839CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)Note: The measured wind gust of 57 knots is equivalent to 66 mph.Potter County(AMA)Amarillo Intl A 20 1840CST1841CST 0 0 0.00K 0.00K Thunderstorm Wind (64MG)Note: The measured wind gust of 64 knots is equivalent to 74 mph.Potter County1 NE (AMA)Amarillo Intl A 20 1840CST1841CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts caused damage to an open hangar door at the Rick Husband International Airport. There were noreports of injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Randall County3 S Amarillo 20 1840CST1841CST 0 0 0.00K 0.00K Thunderstorm Wind (68MG)Note: The measured wind gust of 68 knots is equivalent to 78 mph.Randall CountyLake Tanglewood 20 1840CST1841CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts blew off the roof of a metal building near the Claude Highway (Farm to Market Road 1151) andTanglewood Road. There were no injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Randall CountyLake Tanglewood 20 1844CST1845CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)Note: The measured wind gust of 53 knots is equivalent to 61 mph.Potter County6 WNW Amarillo 20 1850CST2100CST 0 0 8.00K 0.00K Flash FloodVery heavy rainfall from thunderstorms produced flash flooding across the Amarillo area. Flash flooding was reported onWestern Street south of Interstate 40 and residential streets were reported flooded and impassable near downtown Amarillo,Texas in Potter County. Also, underpasses near Interstate 40 and South Grand Street were flooded. Flash flooding was reportedat 27th Street east of Interstate 27 and roads were flooded near Medi Park on the west side of Amarillo. TheAmarillo/Potter/Randall Office of Emergency Management reported numerous flooded intersections throughout Amarillo alongwith vehicles stranded and water rescues being conducted. There were no reports of injuries or fatalities.424

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, North PanhandleRandall County5 S Amarillo 20 1855CST1856CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm wind gusts caused a power outage around the 45th Avenue and Western Street area. There were no injuries orfatalities.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Potter CountyAmarillo 20 1858CST1859CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts blew down a large tree about ten feet tall and six inches in diameter in the backyard of a residence.There were no injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Potter CountyAmarillo 20 1900CST1901CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)Thunderstorm wind gusts blew a stop sign off of its post at 45th Avenue and Georgia Street. There were no injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Armstrong County1 E Claude 20 1932CST1933CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)The Armstrong County Emergency Manager estimated thunderstorm wind gusts just north of Claude, Texas, however therewas no damage and no reports of injuries or fatalities.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.Randall County1 ESE Palo DuroCanyon State Park 20 1941CST2100CST 0 0 0.00K 0.00K Flash FloodVery heavy rainfall from thunderstorms caused flash flooding in the Palo Duro Canyon State Park in Randall County. ParkRangers reported that the water was three and a half to four feet over the first low water crossing in the park. The water wasalso reported to be six feet over the other low water crossings in the park. There was no damage reported and there were noinjuries or fatalities.Severe thunderstorms developed across the western Texas Panhandle during the early evening hours and then moved across thesouth central Texas Panhandle. These severe storms produced large hail and damaging winds along with flash flooding. Therewere no reports of injuries or fatalities.Donley County1 WNW Hedley 25 1607CST1608CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)The Texas Department of Public Safety reported a large tree down across Farm to Market Road 1932 west of the town ofHedley, Texas near the fork. There were no reports of injuries or fatalities.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Wheeler County1 NNE Shamrock 25 1705CST1707CST 0 0 0.00K 0.00K Hail (0.88)The hail was reported by the Texas Department of Public Safety on Interstate 40 in the town of Shamrock, Texas.Donley County1 WNW Clarendon 25 1705CST1706CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A trained spotter estimated strong thunderstorm wind gusts just west northwest of Clarendon, Texas. There was no damagereported and no reports of injuries or fatalities.425

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, North PanhandleTEXAS, NortheastSevere thunderstorms developed and moved across the southeastern Texas Panhandle during the early evening hours producinghail along with damaging thunderstorm wind gusts. There were no reports of injuries or fatalities. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Gregg County1 WNW Gladewater 05 2055CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were downed in Gladewater.A frontal boundary was draped across the Middle Red River Valley of Northeast Texas, Southeast Oklahoma and SouthwestArkansas during the afternoon and evening hours of August 5th. Moderate instability was present across the region withtemperatures near 100 degrees and with ample moisture in place...scattered showers and thunderstorms developed across theFour State Region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Nacogdoches County1 E Bonita Jct 07 1736CST 0 0 0.00K 0.00K Hail (0.75)Hail was reported three miles north of Nacogdoches, Texas.Nacogdoches County1 ENE Nacogdoches 07 1737CST 0 0 0.00K 0.00K Hail (0.75)Hail was reported at Hwy. 7 and Loop 224.Nacogdoches County1 SW Nacogdoches 07 1752CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were downed on FM. 2863 southwest of Nacogdoches, Texas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bowie County1 NW Bassett 07 1825CST 0 0 0.00K 0.00K Hail (0.88)Nickel size hail was reported on Hwy. 67 and Hwy. 98 near Simms, Texas.A large ridge of high pressure in the upper levels of the atmosphere remained stationary across the Texas Hill Country intoNew Mexico. Flow around this high pressure ridge was from the northwest across the Lower Mississippi Valley and this meantthat weak disturbances moved into the region. These disturbances reacted with deep moisture to produce showers andthunderstorms across portions of the region, some of which produced flash flooding and severe weather.Smith County1 S Tyler 08 1405CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was downed on FM. 2015 north of Loop 323.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Smith County1 W Whitehouse 08 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed west of Whitehouse, Texas.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Cherokee County1 ENE Loves Lookout 08 1530CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed north of Jacksonville, Texas.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Cherokee County2 SSW Hume 08 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Trees were downed southwest of Jacksonville, Texas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.426

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NortheastHarrison County1 ENE Marshall 08 1635CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was downed at mile marker 612 on Interstate 20.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Harrison County2 SE Marshall 08 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed 2 miles south of Marshall, Texas on FM. 2625.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Nacogdoches County1 W Oak Flat 08 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed across Hwy. 225 south of Cushing, Texas.Strong to severe thunderstorms developed across the region during the afternoon and evening hours of August 8th. Thesestorms developed along previous remnant outflow boundaries. Moderate instability was present, along with good low levelmoisture. Hail and damaging thunderstorm wind gusts were the primary results. Note: The estimated wind gust of 53 knots isequivalent to 61 mph.Franklin County2 NNW Burley 09 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Multiple trees were downed including trees across Hwys. 37, 3370, 3230, 3250, 1448 and 71.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Wood County1 NW Winnsboro 09 1825CST 0 0 25.00K 0.00K Thunderstorm Wind (54EG)Trees were downed across all of Wood County. One tree fell into a house in Winnsboro, Texas and chainsaws had to be usedto free the occupants from the residence.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Camp County2 NNW Matinburg 09 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees were downed near CR. 556 southwest of Pittsburg, Texas.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Wood County1 NW Winnsboro 09 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Numerous trees and powerlines were downed throughout the entire county.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Gregg County2 NE Greggton 09 1930CST 0 0 0.00K 0.00K Hail (0.75)Penny sized hail was reported in the Judson community.Gregg County2 NE Greggton 09 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Powerlines were downed in Judson, Texas.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Upshur County2 SSW James 09 1940CST 0 0 0.00K 0.00K Hail (1.00)Hail was reported 4 miles south of Diana, Texas on the Upshur/Gregg County line.427

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NortheastGregg County2 NE Greggton 09 1945CST 0 0 20.00K 0.00K Thunderstorm Wind (54EG)A large pine tree was uprooted and fell onto the Saddlebrook apartments in Longview, Texas.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Gregg CountyLongview 09 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)A tree was downed on Georgia Richie Road just west of town.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Gregg County2 NE Greggton 09 1957CST 0 0 50.00K 0.00K Thunderstorm Wind (54EG)Several trees were downed in the Longview Heights area. Some homes were also damaged by the trees.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Gregg County1 WNW Gladewater 09 1958CST 0 0 100.00K 0.00K Thunderstorm Wind (54EG)Numerous trees and powerlines were downed in the area. Several of these trees fell on homes. The roof was removed from abusiness on Hwy. 80. A portion of the roof landed on an automobile.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Gregg CountyGladewater 09 1958CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Powerlines were downed in the Lake Gladewater community.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Gregg County1 E White Oak 09 2000CST 0 0 20.00K 0.00K Thunderstorm Wind (53EG)A large tree fell on a house on Bingham Road. Another tree was blocking the road at Bingham and White Oak Road.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Gregg County1 NE Kilgore 09 2005CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Powerlines were downed southeast of town at the 11000 block of CR. 173.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Rusk County1 N Overton 09 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)A large tree and powerlines were downed north of Overton, Texas on CR. 1111.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Rusk County1 N Pitner Jct 09 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)County Road 152 was completely blocked by trees and powerlines just off of SH. 42 in the Leveretts Chapel community.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.Rusk County1 SW Sexton City 09 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)Large trees were downed near New London on FM. 2012 and FM 1513.Note: The estimated wind gust of 54 knots is equivalent to 62 mph.428

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, NortheastShelby County1 N Timpson 09 2110CST 0 0 3.00K 0.00K Thunderstorm Wind (53EG)Trees were downed and a metal roof was blown off a shed near Hwy. 87.A frontal boundary which had been stationary through much of the day across Southern Oklahoma into Southern Arkansasbegan to make southward progress into Northeast Texas and Northern Louisiana during the late afternoon and evening. Stormsdeveloped and produced damaging thunderstorm wind gusts in a very unstable atmosphere. Note: The estimated wind gust of53 knots is equivalent to 61 mph.Harrison County1 ENE Marshall 15 1351CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees and powerlines were downed at East Texas Baptist University in Marshall, Texas.Smith CountyWood Spgs1 WSW LindaleIsolated pulse type severe thunderstorms developed across Harrison County in Northeast Texas during the afternoon hours ofAugust 15th. These storms developed in a moist and unstable airmass and produced strong downburst winds once theycollapsed. Note: The estimated wind gust of 53 knots is equivalent to 61 mph.17 0831CST0945CST 0 0 0.00K 0.00K Flash FloodFlooding was reported on Interstate 20 and FM. 14 near Lindale, Texas.A weak stationary frontal boundary across Northeast Texas and Northwest Louisiana served as a focus for showers andthunderstorms, some of which produced strong and damaging wind gusts. Isolated flash flood producing storms were alsoreported across portions of Smith County, Texas.Angelina County1 ENE Diboll 31 1730CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)Trees were downed in town and a large limb fell onto a home in Diboll, Texas.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Angelina County4 N Homer 31 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)Trees and powerlines were downed in parts of the county east of Lufkin, Texas.Note: The estimated wind gust of 53 knots is equivalent to 61 mph.Angelina County1 ENE Burke 31 1845CST2115CST 0 0 0.00K 0.00K Flash FloodTEXAS, SouthExcessive heavy rainfall resulted in a creek overflowing its bank and flooding pastureland with rapid moving water near ahome along Old Diboll Highway in Burke, Texas.Hurricane Isaac made its second landfall during the predawn hours of August 29th across Southeast Louisiana. This hurricanemoved very slowly north and east and was downgraded to a tropical storm later that same afternoon but due to its slownortheast movement...tropical storm force winds were not felt across portions of East Central and Northeast Louisiana until theearly morning hours of August 30th. These winds estimated to be sustained at 35 to 50 mph with gusts as high as 70 mphproduced winds that downed multiple trees across a few parishes. While the remnants of Isaac moved north into Arkansas onAugust 30th and 31st, feeder bands extended well south into Northeast Texas and some of these produced severe thunderstormsacross Angelina County in Northeast Texas.TXZ249>251-253>257Brooks - Coastal Cameron - Coastal Willacy - Hidalgo - Inland Cameron - Inland Willacy - Jim Hogg -Kenedy01130000CST2359CST 0 0 0.00K Drought429

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, SouthA persistent upper level ridge across much of the nationâs midsection and âLa Caniculaâ sitting over Northern Mexico allowedfor many hot and dry days, with temperatures reaching and surpassing the century mark. Rainfall at the end of July and spottysea breeze related rainfall during the first half of the month, kept drought conditions from widespread intensification across theRio Grande Valley and Deep South Texas. A rainfall event in Brownsville on August 7th, caused by sea breeze convergenceand out flow boundary interaction, was one of the few wet moments of early August, as almost 3.5 inches of rain fell at theBrownsville/South Padre Island International Airport.Cameron County1 SSE (BRO)Brownsville Arp1 E Portway Acres06 1115CST1315CST 0 0 0.00K 0.00K Heavy RainMore than three inches of rain fell in a two hour period across southern Cameron County. The ASOS at Brownsville/SouthPadre Island International Airport measured 3.08 inches and a CoCoRaHS site measured 3.35 inches of rain. Nuisance urbanflooding of poor drainage locations in downtown and along Boca Chica Boulevard occurred during the time of the heaviestrainfall.Heavy rains fell over portions of southeastern Cameron County on August 6th as sea breeze convergence and outflow boundaryinteraction created showers and thunderstorms that dropped 3.08 inches of rain at the Brownsville/South Padre IslandInternational Airport and 3.35 inches at a CoCoRaHS site in eastern Brownsville in a span of 2 hours.TXZ252Starr07310000CST2359CST 0 0 0.00K DroughtAfter periodic help from thunderstorms which either formed along or near the Rio Grande in the Starr and Zapata area, ordrifted south from the ranchlands of Jim Hogg County in July, little to no rain fell in August across eastern Starr County andSevere Drought returned during the first week of the month with Extreme Drought arriving toward month's end.TXZ249>251-253>254-256Brooks - Coastal Willacy - Hidalgo - Inland Willacy - Jim Hogg - Kenedy14310000CST2359CST 0 0 0.00K 0.00K DroughtRainfall continued to be spotty during the latter half of August across the Rio Grande Valley and Deep South Texas. Dryconditions combined with triple digit temperatures and frequently breezy days allowing drought conditions to furtherdeteriorate.TXZ255Inland Cameron21310000CST2359CST 0 0 0.00K DroughtRainfall continued to be spotty during the last ten days of August across the Rio Grande Valley. Despite a local torrential rainproducing thunderstorm which dropped several inches of rain near Brownsville, most of inland Cameron County remainedunusually dry for one of the wetter months of the year. Dry conditions combined with locally triple digit temperatures andfrequently breezy days allowing drought conditions to further deteriorate.TEXAS, South CentralTXZ183-186-188>189-202-217-228Dimmit - Edwards - Gillespie - Kendall - Kerr - Kinney - Maverick - Val Verde01310000CST2359CST 0 0 0.00K 0.00K DroughtA lack of rainfall over the western portion of South Central Texas led to Dimmit, Kinney, and Maverick counties joiningEdwards, Gillespie, Kendall, Kerr, and Val Verde Counties in severe drought category (Stage D2) at the end of August. Firedanger at the end of the month was moderate to high and 22 counties had burn bans in effect. The Texas Crop and WeatherReport issued by Texas A and M Agricultural reported that pastures continued to decline with grasses going dormant andrangeland in poor condition with high risk for wildfire. Area lakes and reservoirs continued to slowly decline and weregenerally well below normal pool elevations. Lake Travis was around 46 feet below normal and Medina Lake 64 feet below.The seven day stream flow average across the Lower Colorado and Upper Guadalupe River basins was much below normal andthe Lower Guadalupe, Upper Colorado, and Rio Grande basins were below normal. The Edwards Aquifer was 21.9 feet belownormal. Uvalde was in Stage 4 water restrictions, the San Antonio Water System, New Braunfels, and Alamo Heights were inStage 3, the City of San Marcos was in Stage 2, and Austin and Kerrville were in Stage 1.430

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South CentralEdwards County1 E Rocks Spgs 09 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A thunderstorm produced wind gusts estimated at 60 mph and pea size hail.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Burnet County1 ENE Burnet 09 1630CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)The Burnet County Sheriff's Office reported a thunderstorm produced wind gusts estimated at 58 mph that caused minor roofdamage to some homes.A mid to upper level trough extended from the Great Lakes to eastern Texas. This brought cooler air into the mid levels overSouth Central Texas and combined with a hot, moist boundary layer produced thunderstorms. A few of these storms produceddamaging wind gusts. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Comal County1 ESE Fischer 10 1550CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph that blew over several large Oak trees.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Comal County3 SSE Hunter 10 1613CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A thunderstorm produced wind gusts estimated at 60 mph.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Bexar County1 NE Woodlawn Lake 10 1630CST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)A thunderstorm produced wind gusts estimated at 75 mph near the Medical Center in San Antonio. The wind blew down largetree limbs and power lines.Note: The estimated wind gust of 65 knots is equivalent to 75 mph.Bexar County1 NE Woodlawn Lake 10 1630CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)A thunderstorm produced wind gusts estimated at 60 mph near the Medical Center and I-10 in San Antonio. The wind blewroofing material off an office building that broke some windows.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Comal County1 E New Braunfels 10 1630CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph that blew a three foot diameter tree onto a house in New Braunfels.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bexar County1 NE Woodlawn Lake 10 1643CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph three miles south of the San Antonio International Airport.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Edwards County9 NE Rocks Spgs 11 1745CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph that damaged or destroyed several outbuildings.A very hot day in South Central Texas made the atmosphere conditionally unstable and a weak moisture convergence boundaryadded enough lift to produce thunderstorms. Some of these storms produced damaging wind gusts. Note: The estimated windgust of 50 knots is equivalent to 58 mph.431

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South CentralWilliamson County2 NW Georgetown 13 1615CST 0 0 0.50K 0.00K Thunderstorm Wind (35EG)A thunderstorm produced wind gusts estimated at 40 mph that blew down some large tree limbs.A weak cold front moved through Central Texas and produced isolated thunderstorms. One of these storms produced damagingwind gusts in Williamson County. Note: The estimated wind gust of 35 knots is equivalent to 40 mph.Bastrop CountyRosanky 18 2033CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph that uprooted a large tree and peeled a tin roof off a barn.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bexar County2 SE San Antonio 18 2130CST 0 0 50.00K 0.00K LightningA thunderstorm produced a lightning strike that started a house fire in San Antonio.Williamson County1 ESE Georgetown Muni Arpt 18 2200CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing the intersection of Airport Rd and Lakeway Dr inGeorgetown.Williamson County2 WNW Weir 18 2230CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing FM 971 near Berry Creek.Williamson County1 E Florence 18 2230CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing Hwy 195 near Florence.Bexar County4 ESE San Antonio 19 0000CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing Amity Rd at Roland Ave in San Antonio.Bexar County2 SSE Lackland Afb 19 0117CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing Brook Valley Dr at Ray Ellison Blvd in San Antonio.Bexar County1 SSE Alamo Downs 19 0152CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing Pinn Rd from W. Commerce St to Hwy 151 in SanAntonio.Bexar County1 N San Antonio 19 0430CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding affecting both the northbound and southbound lanes of the lowerlevel of I-35 near San Pedro Ave in San Antonio.Medina County6 NNE Rio Medina1 ESE Devine19 0430CST 0 0 0.00K 0.00K Flash FloodThunderstorms produced heavy rain that caused flash flooding closing several roads around the county including FM 471 andCR 741.A weak cold front moved through South Central Texas and produced widespread thunderstorms. Some of these stormsproduced damaging wind gusts and heavy rain that led to flash flooding.Lee County5 ESE Loebau 31 1415CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)A thunderstorm produced wind gusts estimated at 58 mph that damaged the underpinning of a mobile home, a porch, a barn, awell house, a fence, and multiple trees.432

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South CentralA surface trough formed in the wake of Tropical Storm Isaac and moved across South Central Texas. This trough acted on deeplow level moisture to cause scattered thunderstorms one of which produced damaging wind gusts. Note: The estimated windgust of 50 knots is equivalent to 58 mph.TEXAS, South PanhandleTXZ021>044 Bailey - Briscoe - Castro - Childress - Cochran - Cottle - Crosby - Dickens - Floyd - Garza - Hale - Hall -Hockley - Kent - King - Lamb - Lubbock - Lynn - Motley - Parmer - Stonewall - Swisher - Terry - Yoakum01310000CST2359CST 0 0 0.00K 0.00K DroughtDrought conditions generally worsened over the region through the month of August. All counties in Moderate (D1) conditionsthrough July were upgraded to at least Severe (D2). Some counties previously in Extreme (D3) were upgraded to the highestlevel, Exceptional (D4).Temperatures were observed to be slightly above normal for August. The hottest conditions were observed in the first half ofthe month as an upper level high pressure system became established over West Texas. Daytime temperatures were at or aboveone hundred degrees for numerous days. Lubbock recorded a maximum temperature of 105 while Childress recorded a 110degree temperature. Yearly averages place Lubbock and Childress as the second warmest and warmest years respectively.Precipitation continued to be typical for a summertime pattern with only spotty or scattered thunderstorms occurring. Mostareas continued to be between three and six inches below average for rainfall. Keetch-Byram Drought Index values remainednearly the same from July's values. Values between 600 and 700 were observed over the western South Plains and RollingPlains with values of 500 to 600 elsewhere. The lone exception was across the southeastern Texas panhandle where quantitiesbetween 400 and 500 were observed.All crops and pasture were stressed across the region. Many cotton fields were being pushed out to early cutout stage. Irrigationwas proving insufficient to provide enough water for crops, and dryland crops were nearly a total loss. Livestock continued toneed supplemental feed and some producers were selling off their livestock. Burnable fuel supply was at a relatively low level,although late summer is not the peak time of the year for grassland wildfires. Most wildfires were started from low precipitationthunderstorms, with lightning igniting grasslands.Economic losses due to drought through August since the drought began were estimated near $2.4 billion.Parmer County1 WNW Friona Benger Arpk 18 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)Measured by the Texas Tech University West Texas Mesonet.Note: The measured wind gust of 54 knots is equivalent to 62 mph.Cochran County1 W Morton Cochran Co Ar 18 2100CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)Parmer County1 WNW Friona Benger ArpkFrionaCastro County4 SE Summerfield9 N Dimmitt Muni ArptMeasured by the Texas Tech University West Texas Mesonet.Scattered thunderstorms intensified early this evening in the southwest Texas Panhandle and moved southwestward ahead of acold front. One storm produced a severe wind gust near Friona while another developed persistent mid-level rotation and strongindications of severe hail in northern Lamb County. Although no ground truth was obtained, this latter storm did produce asevere wind gust as it collapsed near Morton during the evening. Note: The measured wind gust of 51 knots is equivalent to 59mph.20 1710CST1712CST 0 0 20.00K 0.00K Thunderstorm Wind (76MG)A collapsing thunderstorm produced destructive downburst winds measured up to 88 mph by a Texas Tech University WestTexas mesonet station northeast of Friona. Two quarter-mile long irrigation pivots located just east of the mesonet were flippedover. In Friona, similar winds caused widespread light to moderate structural damage mostly to fences, roofs and trees. Ahangar door at the airport also sustained damage.Note: The measured wind gust of 76 knots is equivalent to 87 mph.20 1800CST2100CST 0 0 0.00K 0.00K Flood433

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South PanhandleTorrential rains in excess of four inches fell over the course of one hour in and around the community of Flagg causingextensive flooding of fields and roads. Swift-flowing water was reported to be nearly three feet deep about 3/4 of a mile northof Flagg over FM 1055. An NWS storm survey the following morning noted water was still about 1.5 feet deep over the road.Combined with wind-driven hail, the floodwaters seriously damaged or destroyed many area crops.Heavy rains possibly in excess of four inches fell within one hour in and north of the community of Flaggcausing extensive flooding of fields and covering sections of roads with up to 2.5 feet of flowing water.Also, downburst winds determined as high as 90 mph toppled some power poles and caused some structuraldamage in Flagg. Photo credit Matt Ziebell.Castro County9 SW Dimmitt 20 1829CST 0 0 20.00K 0.00K Thunderstorm Wind (78EG)An NWS storm survey in the community of Flagg confirmed significant downburst winds of around 90 mph from the east andnortheast. These winds heavily damaged a large empty grain bin, shifted a nearby building that was bolted to concrete a fewinches off its foundation, twisted pieces of metal on a grain elevator, knocked down two power poles, and caused variousdegrees of damage to trees.Note: The estimated wind gust of 78 knots is equivalent to 90 mph.Downburst winds estimated around 90 mph severely damaged this large grain storage bin in Flagg. Photocourtesy of Matt Ziebell.434

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South PanhandleCastro County8 SW Dimmitt 20 1830CST 0 0 100.00K Hail (1.25)Hail slightly larger than quarters pummeled the Flagg community for nearly 30 minutes. Combined with ferocious downburstwinds, hundreds of acres of mature corn and grain crops were destroyed or severely damaged. Torrential rains piled the hailinto drifts nearly 12 inches deep in places. With record high corn prices, total crop losses would likely top $100,000.TXZ034Hockley20 1830CST1930CST 0 0 0.00K 0.00K WildfireOne of three wildfires sparked by frequent cloud-to-ground lightning near Pep in far northwest HockleyCounty. Photo courtesy of Mark Conder.Hall County3 WSW Turkey 20 2020CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)Measured by a Texas Tech University West Texas mesonet.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Lubbock County2 SSE (LBB)Lubbock Intl Ar 20 2026CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)The Lubbock ASOS measured a wind gust to 58 mph. No damage was reported.Moderate instability behind a warm front and cool northwest flow aloft yielded multiple strong and severe thunderstorms latethis afternoon and evening. The first storm was a small supercell that moved slowly south across far northwest Castro Countytoward Easter; however, the only severe weather with this storm was observed farther north in Deaf Smith County (NWSAmarillo's County Warning Area). By early evening, a storm farther west collapsed over Friona accompanied by destructivedownburst winds that damaged many trees, fences and caused minor damage to some buildings. A mesonet station northeast ofFriona measured a wind gust of 88 mph. A third storm then erupted southwest of Dimmitt and moved very little over the courseof 45 minutes resulting in torrential rains possibly in excess of four inches. These rains turned area fields into lakes and causedflooding of low-lying sections of FM 1055 near Flagg. This storm also produced intense downburst winds in Flagg thatseverely damaged a large grain bin, toppled two power poles and damaged area trees. Wind-driven hail up to 1.25 inches indiameter also caused significant crop damage in the Flagg area. Frequent lightning from separate storms farther south near Pepcaused at least three wildfires; one of which grew to at least 100 acres in size and forced the evacuation of three homes.Fortunately, no one was injured and no homes were damaged. Storms then grew into a large complex which moved eastsoutheastacross the South Plains and into the Rolling Plains. Although a few marginally severe wind gusts accompanied thiscomplex, the storms brought much-needed soaking rains to the region with additional showers continuing through the night.Note: The measured wind gust of 50 knots is equivalent to 58 mph.435

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South PanhandleLubbock County4 WNW Lubbock Airpark 24 2200CST 0 0 30.00K 0.00K LightningLightning struck a home in the 3900 block of 110th Street in Lubbock late this night causing a corrugated steel natural gas linein the roof to ignite. The subsequent explosion was directed into the garage of the house which at the time was occupied by twomen. One man, 31 year-old Brennan Chase Teel of Rockwall, Texas, was directly in the path of the explosion and was fatallyinjured. The second man was behind a truck at the time which acted to shield the explosion around him; although he requiredtemporary hospitalization for smoke inhalation. The garage door was severely damaged upon buckling outward from theexplosion. A fire also developed in the attic where the lightning channel struck, but was promptly extinguished by localfirefighters who witnessed the close lightning strike and smoke plume. The remainder of the house suffered light to moderatesmoke damage. Monetary losses were estimated as damage figures were not available.Lubbock County2 SSW Doud3 SW Heckville24 2200CST2223CST 0 0 350.00K 0.00K Thunderstorm Wind (61EG)A downburst with winds estimated as high as 70 mph at times traveled northeast from near Frankford Avenue and Spur 327 insouthwest Lubbock to the Lubbock International Airport and to just north of Idalou. Peak winds on the periphery of thisdownburst were officially measured at 63 mph at 2200 CST at a Texas Tech University West Texas Mesonet located 3WNW ofthe University, 59 mph at 2203 CST at the Lubbock ASOS, and 65 mph at 2223 CST at a KAMC weather station in Idalou. Thedownburst caused moderate damage to a greenhouse located at Lowe's Home Improvement store. At a nearby Home Depotstore, the canopy to a greenhouse was partially damaged and several steel fence posts embedded in concrete were bent. At anapartment complex located near 50th Street and Slide Road, the roof of one unit was blown off. Damage to homes wasgenerally light and consisted of some downed fences, broken rain gutters and torn roofing shingles. Many trees lost limbs ofvarious sizes and in a few cases entire trees were toppled. Power outages were confined mostly to small grids in and around thepath of the downburst. Total monetary damage from this downburst is estimated around $350,000; much of which was incurredat the home improvement stores.Note: The estimated wind gust of 61 knots is equivalent to 70 mph.A roof blown off an apartment complex in west Lubbock after a downburst struck with winds between 60and 75 mph. Photo courtesy of Steve Cobb.Floyd County2 NE Lakeview 24 2315CST 0 0 6.00K 0.00K Thunderstorm Wind (56EG)A COOP observer reported three power poles down on the west end of his farm.436

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012TEXAS, South PanhandleRare for late summer, a tightly-wound upper low tracked east this day from the Four Corners into western Kansas. Dry westerlywinds from New Mexico created a dryline that moved into the western South Plains. Combined with an axis of upper liftextending south of the upper low, isolated strong storms quickly developed in a moderately unstable environment late thisafternoon. By early evening, a storm with a mesoanticylcone developed near Brownfield and tracked northeast (left of the meanstorm motion) before collapsing in rural southwest Lubbock County. Although NWS radar indicated the likelihood of severehail and damaging winds, no ground truth was available throughout the life of this storm. By late evening, lingering outflowboundaries collided in southwest Lubbock County and gave rise to intense multicell storms; one of which produced adestructive downburst that traveled from just northwest of the Lubbock South Plains Mall northeast to the Lubbock Airport andinto rural northeast Lubbock County. A swath of straight-line winds estimated as high as 70 mph at times caused light tomoderate structural damage at two large home improvement stores and removed the roof from an apartment building. Isolatedpower outages resulted from downed trees, tree limbs and frequent cloud-to-ground lightning. Tragically, one man died afterlightning struck a house and ignited a corrugated stainless steel natural gas line in the roof. The destructive storm later decayedin northeast Lubbock County before reintensifying southeast of Floydada where downburst winds downed several power poleslate in the night. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.King County9 WSW Guthrie 6666 Arpt 25 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)TEXAS, SoutheastMeasured by a Texas Tech University West Texas mesonet station.Moderate instability developed this afternoon ahead of a weak cold front moving south from the Texas Panhandle. Numerousstrong storms erupted in the far southeast Texas Panhandle, particularly in and around Briscoe County by mid-afternoon. Theonly severe weather however was relegated to a pulse storm in King County that produced a measured wind gust to 58 mph.Note: The measured wind gust of 50 knots is equivalent to 58 mph.Jasper County1 NE Buna 10 1727CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)TEXAS, WestJasper county sheriffsâ office reports a few trees down along highway 60 south of Buna.A lone severe storm affects Jasper County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Presidio CountyMarfa 18 1706CST1711CST 0 0 Hail (1.00)Mid-level lift, moisture, and instability were over the area. Outflow boundaries from storms the previous day were still overthe area and helped to create a source of low-level lift. These factors, along with low-level moisture and instability, helped tocreate an environment conducive for severe thunderstorms across the Davis Mountains.Midland CountyMidland 25 1800CST1805CST 0 0 Hail (1.00)TEXAS, Western NorthAn upper level trough was present over the central plains with an axis of lift that extended all the way back to the PermianBasin. There was low-level lift from a surface trough across Southeast New Mexico and West Texas as well as from outflowboundaries from previous thunderstorms. Low-level instability and moisture were also present to aid in thunderstormdevelopment across the Permian Basin.TXZ083>090Archer - Baylor - Clay - Foard - Hardeman - Knox - Wichita - Wilbarger01310000CST2359CST 0 0 DroughtHot and dry conditions continued for much of the month beneath a persistent upper-level ridge over the southern Plains.Drought conditions in western north Texas remained severe.437

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012UTAH, EastUTZ022>025-027>029Canyonlands/Natural Bridges - Eastern Uinta Basin - Eastern Uinta Mountains - Grand Flat and Arches -La Sal & Abajo Mountains - Southeast Utah - Tavaputs Plateau01310000MST2359MST 0 0 0.00K 0.00K DroughtThe string of below normal precipitation months continued into August across eastern Utah. Therefore little change in thisprolonged drought was seen across this region with extreme drought conditions leading to elevated wildfire danger and biggerimpacts to agricultural interests due to loss of production.UTAH, West and CentralGarfield County1 W Escalante 01 1410MST1510MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along the Escalante River, where it runs adjacent to State Route 12. Some water crossed over theroad west of the city of Escalante.Kane County18 W Glen Cnyn Bsn Arpt2 E Paria01 1600MST1700MST 0 0 0.00K 0.00K Flash FloodA large flash flood was reported along the Paria River, with water flowing over the Skudampah Road.Kane County10 ESE Glendale 01 1600MST1700MST 0 0 0.00K 0.00K Flash FloodMultiple flash floods were reported in the upper Kanab Creek drainage.Emery County12 NW Mohrland 01 1645MST1745MST 0 0 50.00K 0.00K Flash FloodAfter approximately 1.25 inches of rainfall, a very large debris flow occurred on the Seeley Burn Scar. Debris flowed overState Route 31, causing significant damage to a 1/4 mile stretch of the road, as well as a nearby bridge. Debris of up to 3 feet inheight was spread over about a mile of the roadway. State Route 31 was closed for over a week, as crews repaired the roaddamage and cleared boulders and other debris off the roadway. The debris flow also pushed a UDOT front loader off the roadand into a ditch, partially covering it with debris.Washington County4 E Pintura 01 1800MST1900MST 1 0 0.00K 0.00K Flash FloodFlash flooding occurred along La Verkin Creek on the evening of August 1st, with significant rises in the water level. At thesame time, a 2-year-old girl was noticed missing from her home in the city of La Verkin, which was close to the creek. The girlpassed away when she drowned in the Creek, and her body was found a couple hours after she had been reported missing.F2IWThe monsoon moisture in place at the end of July carried over into August, producing widespread showers and thunderstormsacross Utah. The heaviest rain fell over southern Utah, where a few different flash floods were observed on August 1st. F2IWUTZ004Southern Wasatch Front/Lehi/Provo/Nephi05121550MST1700MST 0 0 215.0K 0.00K WildfireThe Pinyon Fire was started by lightning on August 5th, and burned for a week. The fire started on the property of ArmyGarrison Camp Williams in Utah County, and primarily burned areas within that National Guard training site, but alsothreatened nearby neighborhoods.438

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012UTAH, West and CentralWayne County5 E Torrey7 SW Notom10 1250MST1450MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported by the park rangers at Capitol Reef National Park. This flooding primarily occurred along theScenic Drive, closing the Grand Wash and Capitol Gorge areas.Heavy rain fell over Capitol Reef National Park on August 10th, causing flash flooding in multiple parts of the park.Beaver County(MLF)Milford Muni Ar 16 1829MST1835MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)The Milford ASOS recorded a peak wind gust of 60 mph.Note: The measured wind gust of 52 knots is equivalent to 60 mph.Iron County1 SW Cedar City 17 1715MST1815MST 0 0 1.50M 0.00K Flash FloodMajor flash flooding occurred in the cities of Enoch and Cedar City on the afternoon of August 17th. Enoch had the mostsignificant damage, with 110 houses damaged by flood waters, while Cedar City mostly experienced street flooding. About 30of those 110 houses experienced major damage, typically over $30,000 per house, while the rest had more minor damage.Flood waters and some sewage poured into many basements, as well as some ground level floors. The water broke windowsand destroyed carpets, walls, and personal belongings in many of the homes.Washington County2 SSW Zion Lodge 17 1845MST1945MST 0 0 0.00K 0.00K Flash FloodAfter an estimated 1.25 inches of rain fell over Zion National Park, flash flooding was reported in Spry Canyon, Pine CreekCanyon, and Echo Canyon. The heavy rainfall also caused rocks to fall onto State Route 9, between the switchbacks and thetunnel, which impacted traffic through the park.Washington County11 SSE Rockville 17 2000MST2100MST 0 0 0.00K 0.00K Flash FloodEstimated rainfall amounts of 1.5 to 2 inches fell over southern Washington County, causing flash flooding around parts ofHildale.Kane County9 SSE Adairville5 S Paria19 1540MST1640MST 0 0 0.00K 0.00K Flash FloodA large flash flood along the Paria River was observed as it passed under State Route 89. The spotter estimated that the first200 to 300 yards of the flood was composed of debris, including trees and logs. The gauge along the river increased to 8200cfs.Garfield County18 ESE Escalante Muni Arpt19 SE Boulder19 1650MST1750MST 0 0 10.00K 0.00K Flash FloodA large flash flood occurred in the area around 25 Mile Wash, damaging roads in the area.Washington County2 SSW Zion Lodge 19 1715MST1815MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along the North Fork of the Virgin River and in the Narrows. The river gauge at the North Fork ofthe Virgin went from 53 to 1054 cfs in one hour.439

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012UTAH, West and CentralWashington County6 NE Virgin6 WSW Zion National Park19 1740MST2240MST 0 0 0.00K 0.00K Flash FloodA large flash flood occurred in the Subway portion of Zion National Park, as well as a few other surrounding drainages. Due tothis flood, 22 people in 6 different groups were stranded in the Subway overnight. Two additional people were strandedovernight in Behunin Canyon.Washington County2 ENE Toquerville4 ENE Pintura19 1800MST1900MST 0 0 0.00K 0.00K Flash FloodMultiple drainages southeast of the Pine Valley Mountains experienced flash flooding.Kane County9 SSE Adairville5 S Paria19 2230MST2330MST 0 0 0.00K 0.00K Flash FloodFlash flooding occurred once again along the Paria River, with the river gauge readings peaking at 2625 cfs.Beaver County41 WSW Newhouse 21 1311MST1313MST 0.07 1 0 0 0.00K 0.00K Tornado (EF0)The Beaver County Sheriff reported a tornado along the Utah/Nevada border.Afternoon thunderstorms continued across Utah in the middle of August. The strongest of these thunderstorms most commonlyproduced flash flooding in southern Utah, but isolated occurrences of severe winds and a tornado were also observed.Kane County3 WNW Adairville 22 1500MST1600MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported by park rangers in the Buckskin Gulch area.Kane County6 SE Adairville 22 2030MST2200MST 0 0 0.00K 0.00K Flash FloodFlash flooding occurred along the Paria River, with the river gauge reaching a peak observation of 3850 cfs.Wayne CountyFruita3 ENE Torrey23 1200MST1300MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along Sulpher Creek near Capitol Reef National Park, with the leading wave of the flood reaching4 feet in height.Garfield County22 ENE Boulder 23 1215MST1415MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported near Sheets Gulch and surrounding areas, with water flowing across Notom-Bullfrog Road andother roads on the east side of Capitol Reef National Park.Kane CountyGlen Canyon8 WSW Adairville23 1500MST1700MST 0 0 0.00K 0.00K Flash FloodMultiple flash floods were reported in the Wahweap drainage, the Cottonwood Wash, and the Coyote Wash. Many roads acrossthe area were closed, including Cottonwood Wash Road, Nipple Creek Road, Coyote Wash Road, and Houserock Road.440

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012UTAH, West and CentralKane County3 WNW Adairville 24 1800MST1900MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported along Buckskin Gulch, blocking the route to The Wave, a popular hiking area.Kane County13 NE Kanab 24 1845MST1945MST 0 0 0.00K 0.00K Flash FloodFlash flooding was reported in Johnson Canyon, with a park ranger in the area calling it an average-sized flash flood.Flash flooding across southern Utah once again reached a peak on August 22nd through 24th, with multiple flash floodsreported each day.Tooele County4 SSW (DPG)Michael Aaf Dug 30 1555MST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)The Camel Back Mountain sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 59 mph.Note: The measured wind gust of 51 knots is equivalent to 59 mph.Tooele County1 NNE Wendover Af Aux Arpt 31 1915MST15 SSW Arinosa1935MST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)A large line of thunderstorms moved into far western Utah on the evening of August 31st, bringing severe wind gusts. Peakrecorded gusts included 72 mph at Wendover Airport, 61 mph at Wendover Peak, and 58 mph at the North Salt Flats sensor.Note: The measured wind gust of 63 knots is equivalent to 72 mph.Box Elder County33 SSW Lakeside 31 2015MST2100MST 0 0 0.00K 0.00K Thunderstorm Wind (68MG)VERMONT, North and CentralA line of thunderstorms intensified as it reached the Great Salt Lake, with peak recorded wind gusts of 78 mph at the I-80 atGrassey sensor, 67 mph at Lakeside Mountain, 65 mph at Hat Island, and 62 mph at the Eagle Range sensor.Severe thunderstorms occurred across primarily northern Utah at the end of the month, producing strong wind gusts. Note: Themeasured wind gust of 68 knots is equivalent to 78 mph.Rutland CountyWallingford 04 1448EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Two 8 to 10 inch diameter trees downed by thunderstorm winds.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Rutland CountyClarendon 04 1505EST 0 0 0.00K 0.00K Hail (1.00)Hail ranging from dime to quarter size fell in Clarendon.Rutland County1 W East Clarendon 04 1510EST 0 0 0.00K 0.00K Hail (0.75)Dime to penny size hail reported.A weak disturbance traveled along a warm frontal boundary that was moving across southern Vermont on August 4th. A fewscattered thunderstorms developed during the afternoon as this warm front crossed Rutland county with one storm thatproduced isolated severe weather in Wallingford and Clarendon.441

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VERMONT, North and CentralAddison County1 W East Middlebury 05 1936EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees and power lines down across Route 125.A weak cold front and upper level disturbance moved through a marginally unstable air mass that ignited scatteredthunderstorms during the afternoon and evening hours of August 5th in portions of New York and Vermont. One of thesestorms produced isolated wind damage in Addison county Vermont. Note: The estimated wind gust of 50 knots is equivalent to58 mph.Addison CountyNorth Ferrisburg 11 1742EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)VIRGINIA, EastFew trees down across Loven Lane.A weak cold front finally pushed a stationary boundary across Vermont during the evening of August 11th. A fewthunderstorms developed during the afternoon with an very isolated thunderstorm that produced marginal severe weather nearFerrisburgh. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Lunenburg County5 ENE Nutbush 01 1720EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported.Isolated severe thunderstorm in advance of a frontal boundary produced large hail across portions of south central Virginia.Greensville County1 W Purdy 02 1442EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed across a road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greensville County1 E Purdy 02 1442EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed across a road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richmond County48 WSW Wellford 02 1453EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Richmond County46 WSW Wellford 02 1455EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Henrico County1 SSW Sandston 02 1527EST 0 0 2.00K 0.00K Thunderstorm Wind (53MG)Wind gust of 53 knots (61 mph) was measured at RIC.Note: The measured wind gust of 53 knots is equivalent to 61 mph.Surry County4 SSW Savedge 02 1540EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Roof was blown off of a porch.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Surry County2 SSE Surry 02 1555EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Horse stable was damaged.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.442

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastIsle Of Wight County2 SW Smithfield 02 1610EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed onto a power line.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Accomack County81 SSE Goldvein 02 1618EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was reported.Suffolk (c) County1 N Sandy Bottom 02 1635EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed along Crittenden Road in Chuckatuck.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chesapeake (c) County3 SE Chesapeake 02 1700EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Several trees were downed and some were blocking roads.Scattered severe thunderstorms along a trough of low pressure produced damaging winds and large hail across portions ofcentral and southeast Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Chesapeake (c) CountyChesapeake 06 1545EST 0 0 10.00K 0.00K LightningA two-story home at Willow Avenue caught on fire after lightning struck the home's roof.Isolated thunderstorm in advance of a frontal boundary produced a lightning strike which caused damage across portions ofsoutheast Virginia.Mathews County1 E Mathews 06 1740EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Large tree was downed and blocking Highway 14.Isolated severe thunderstorm in advance of a frontal boundary produced damaging winds across portions of eastern Virginia.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Mecklenburg County1 W Chase City 08 1520EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed on Fort Mitchell Road and at the intersection of Route 47 and Route 49 in Chase City.Isolated severe thunderstorm along a frontal boundary produced damaging winds across portions of south central Virginia.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampton (c) County4 N Hampton 11 1500EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.59 inches was measured at LFI.Scattered thunderstorms in advance of a frontal boundary produced heavy rain across portions of southeast Virginia.Isle Of Wight County1 E Smithfield 15 1400EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Numerous trees were downed along Smithfield Boulevard.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Dinwiddie County1 N Dinwiddie Gardens 15 1430EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed along McIlwaine Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.443

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastChesterfield County3 WNW Matoaca 15 1432EST 0 0 0.00K 0.00K Funnel CloudFunnel cloud was reported.Chesterfield County2 N Ettrick 15 1433EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed on Branders Bridge Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Petersburg (c) County1 SW Petersburg 15 1436EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Numerous trees were downed across the west end of Petersburg. Tree was downed on a house in the 1700 block of YoungsRoad.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Petersburg (c) County1 SSW Petersburg 15 1439EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed on power lines at Parkview Avenue and Boyton Plank Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Petersburg (c) County2 SE Petersburg 15 1440EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed and blocking the road in the 800 block of Sunset Avenue.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Petersburg (c) County1 SSW Petersburg 15 1442EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)Several trees were downed along Fort Lee Road. One house was struck by a falling tree resulting in roof and siding damage.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Petersburg (c) County3 ESE Petersburg 15 1444EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Tree was downed on a parked car at South Boulevard and Crater Road.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Prince George County3 WNW Disputanta 15 1455EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were downed along Highway 460 just east of Route 156.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Norfolk (c) County1 SE Norfolk 15 1533EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Power lines were downed in the 1500 block of Carey Avenue 64.Scattered severe thunderstorms along a frontal boundary produced damaging winds and a funnel cloud across portions ofcentral and southeast Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Hampton (c) County4 WNW Hampton 25 0600EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 6.15 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.444

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastNewport News (c) County1 W Oyster Pt 25 0615EST0715EST 0 0 0.00K 0.00K Flash FloodSignificant street flooding on Warwick Boulevard and Main Street.Newport News (c) County1 E North Newport News 25 0630EST0730EST 0 0 0.00K 0.00K Flash FloodNet Center parking lot was flooded.Newport News (c) CountyOyster Pt 25 0640EST0740EST 0 0 0.00K 0.00K Flash FloodDeep Creek Road was impassable at Warwick Boulevard due to flooding.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of eastern and southeast Virginia.Newport News (c) CountyPatrick Henry Fld 25 0654EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.52 inches was reported in 3 hours.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.Hampton (c) County4 W Hampton 25 0700EST0745EST 0 0 1.00M 0.00K Flash FloodAbout 40 residents of an apartment building had to be rescued with boats due to flooding. Location was near a creek.Newport News (c) County1 N Menchville 25 0702EST0745EST 0 0 1.00M 0.00K Flash FloodWater rescues were reported. Warwick Boulevard closed and Deep Creek Road was impassable for fire trucks due to flooding.Newport News (c) CountyNorth Newport News 25 0715EST0745EST 0 0 0.00K 0.00K Flash FloodCars were submerged just west of Mercury Boulevard on Warwick Boulevard. Cars were abandoned due to flooding.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of eastern and southeast Virginia.Norfolk (c) County1 W (NGU)Nas Norfolk 25 0825EST 0 0 0.00K 0.00K Funnel CloudFunnel cloud was reported looking north from Berkley Bridge area.Isolated thunderstorm associated with low pressure along the Mid Atlantic Coast produced a funnel cloud across portions ofsoutheast Virginia.Prince George County1 N Newville 25 1040EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 5.25 inches was reported.445

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastNewport News (c) County2 N Hilton Vlg 25 1100EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 7.61 inches was reported. Rainfall amount from around 5 AM to noon.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.Accomack County2 NE Mappsburg 25 1154EST 0 1 10.00K 0.00K Thunderstorm Wind (50EG)Trailer home was damaged by straight line winds. One minor injury was reported.Isolated severe thunderstorm associated with low pressure along the Mid Atlantic Coast produced damaging winds acrossportions of the Virginia Eastern Shore. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Greensville County1 W Purdy 25 1200EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.71 inches was reported.James City County1 E Toano 25 1219EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.23 inches was reported.James City County3 ESE Grove 25 1250EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.15 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.Accomack County1 W Melfa 25 1330EST1345EST 0 0 0.00K 0.00K Flash FloodSeveral roads were closed due to flooding in the Melfa area.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of eastern and southeast Virginia.Sussex County1 W Wakefield 25 1415EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 6.37 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.Accomack County1 E Keller 25 1505EST1600EST 0 0 0.00K 0.00K Flash FloodCars were disabled and filing with water in the Keller-Painter area. Many roads were closed due to flooding.Scattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced heavy rain which caused flashflooding across portions of eastern and southeast Virginia.Suffolk (c) CountySuffolk 25 1926EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.02 inches was reported.Hampton (c) County4 N Hampton 25 1929EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.62 inches was reported.446

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastHampton (c) County6 NW Hampton 25 1930EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.70 inches was reported.Newport News (c) CountyPatrick Henry Fld 25 1932EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 5.30 inches was reported.York County1 S Seaford 25 1943EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.96 inches was reported.Newport News (c) County2 NW Menchville 25 1943EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.12 inches was reported.Newport News (c) County3 WSW (FAF)Felker Aaf Ft E 25 1944EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.57 inches was reported.York County1 NE Yorktown 25 1945EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 4.08 inches was reported.York County3 S Magruder 25 1952EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.24 inches was reported.James City County3 ESE Five Forks 25 1953EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.34 inches was reported.Surry County1 SW Scotland 25 1956EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.48 inches was reported.Emporia County1 NW Emporia 25 2005EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.96 inches was reported.Petersburg (c) County2 SE Petersburg 25 2005EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 1.90 inches was reported.Cumberland County2 NW Kimberley Hills 25 2006EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.92 inches was reported.Accomack CountyAccomack Co Arpt 25 2007EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 6.68 inches was reported.Accomack CountyAtlantic 25 2008EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.80 inches was reported.447

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, EastAccomack County2 NE Chincoteague 25 2009EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.22 inches was reported.Accomack County4 ENE Chincoteague 25 2010EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 2.18 inches was reported.Low pressure along the Mid Atlantic Coast produced scattered thunderstorms with heavy rain across portions of central andeastern Virginia.Hampton (c) County5 W Hampton 28 1630EST1730EST 0 0 0.00K 0.00K Flash FloodCar was surrounded by 3 feet of water.Hampton (c) County1 NNE Hampton 28 1655EST1800EST 0 0 0.00K 0.00K Flash FloodFox Hill Road was almost impassable at Mercury Boulevard due to flooding.Scattered thunderstorms along a cold front produced heavy rain which caused flash flooding across portions of southeastVirginia.Norfolk (c) County2 SW Norfolk 28 1730EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 3.50 inches was reported. Rainfall caused minor flooding of numerous streets.Scattered thunderstorms along a cold front produced heavy rain across portions of southeast Virginia.Hampton (c) County3 NE Hampton 28 1900EST2000EST 0 0 0.00K 0.00K Flash FloodNumerous roads were closed or impassable due to flooding. Apartment complex was evacuated.Scattered thunderstorms along a cold front produced heavy rain which caused flash flooding across portions of southeastVirginia.Emporia County1 NW Emporia 28 1945EST2200EST 0 0 0.00K 0.00K FloodNumerous streets were flooded throughout the city. Water was to the bottom of a few buildings.Southampton County1 N Capron 28 2030EST2350EST 0 0 0.00K 0.00K FloodNumerous roads were closed due to flooding, mainly western sections of county along and south of Route 58.Scattered thunderstorms along a cold front produced heavy rain which caused flooding across portions of south centralVirginia.Southampton County2 E Adams Grove 28 2155EST 0 0 0.00K 0.00K Heavy RainRainfall amount of 6.30 inches was reported.Scattered thunderstorms along a cold front produced heavy rain across portions of southeast Virginia.448

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, Extreme SouthwestWise CountyWise 01 1736EST1738EST 0 0 0.00K 0.00K Hail (1.00)Law enforcement personnel reported thunderstorms produced nickel to quarter-size hail in Wise.Lee County3 WSW Jonesville 01 1825EST1827EST 0 0 0.00K 0.00K Hail (1.00)An individual from the public reported thunderstorms produced quarter-size hail 3 miles west-southwest of Jonesville.A frontal boundary across the region triggered isolated thunderstorms during the afternoon hours. A few of the storms producedlarge hail.Scott County1 N Gate City 03 1554EST1600EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind around Gate City.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Bristol (c) County2 ENE Bristol 03 1645EST1650EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a couple of trees downed by thunderstorm wind around Bristol.A cold front tracking through the area triggered thunderstorms during the afternoon hours. A few of the storms produced adamaging thunderstorm wind. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington County4 N Meadowview 09 1625EST1630EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)The highway department personnel reported a couple of trees downed by thunderstorm wind 4 miles north of Meadowview.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Washington County5 SW Glade Spg 09 1630EST1632EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Law enforcement personnel reported a tree downed by thunderstorm wind 5 miles southwest of Glade Spring on Cedar CreekRoad.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Scott CountyGate City 09 1645EST1655EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)VIRGINIA, NorthLaw enforcement personnel reported trees downed by thunderstorm wind countywide.A cold front tracking through the region triggered scattered thunderstorms on the 9th. A few of the storms produced damagingthunderstorm wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Highland CountyClover Creek 01 1525EST 0 0 0.00K 0.00K Hail (1.25)Quarter and half dollar size at the largest.449

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, NorthFrederick County3 NE Siler 01 1644EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Branches were down due to thunderstorm winds.A trough of low pressure over the region was able to trigger a few showers and thunderstorms. A hot and humid air masscaused enough instability for a couple thunderstorms to produce damaging wind gusts and large hail. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Stafford County1 ENE Ruby 03 1628EST 0 0 0.00K 0.00K Hail (1.00)Nickel to quarter sized hail while driving on Garrisonville Rd.A weak surface trough combined with a upper level trough initiated isolated thunderstorms to form mainly over the higherterrain. A hot and humid air mass aided in the development of a few severe thunderstorms.Winchester (c) County4 N Winchester 05 1257EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Tree limb onto power lines. Lines brought down near 100 block of W North Ave.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Winchester (c) County2 NNE Winchester 05 1259EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Tree knocked down onto Guardrail of I-81 south bound near mile marker 313.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Fauquier County1 WNW Warrenton 05 1533EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Multiple trees and tree limbs down from strong thunderstorm winds from Warrenton Northward.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Culpeper County2 NNE Boston 05 1607EST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail reported by spotter near Rappahannock-Culpeper County Line.A cold front moved eastward through the Mid Atlantic in the evening. Ample amounts of instability and moisture combined tocause severe thunderstorms with damaging winds and hail.Frederick County1 ENE Nain 09 1630EST 0 0 0.00K 0.00K Hail (1.00)A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to thedevelopment of severe thunderstorms that produced damaging winds and hail.Frederick County2 SW White Hall 09 1730EST1930EST 0 0 0.00K 0.00K Flash FloodHeavy rain caused high water at Hiatt Rd and Apple Pie Ridge Rd.A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to the developmentof severe thunderstorms that produced damaging winds and hail. An isolated thunderstorm produced flash flooding.Frederick County1 N Stephenson 09 1755EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There were large trees down along Punkin Ridge Rd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.450

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, NorthLoudoun CountyLeesburg Muni 09 1828EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Tree down on Sycolin Rd.A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to thedevelopment of severe thunderstorms that produced damaging winds and hail. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Shenandoah County1 NE Lebanon Church 10 0155EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Tree down on John Marshall Hwy.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Albemarle County1 WNW Farmington 10 1908EST 0 0 1.00K 0.00K Thunderstorm Wind (51EG)Multiple trees down along Rt 250.A cold front crossed the Mid Atlantic from the west in the afternoon. An abundant amount of instability and wind shear led tothe development of severe thunderstorms that produced damaging winds. Note: The estimated wind gust of 51 knots isequivalent to 59 mph.Rockingham County3 NNW Bergton 14 1400EST 0 0 0.00K 0.00K Hail (1.00)Rockingham County3 WSW Sparkling Spgs 14 1608EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)There was a tree knocked down across road and power lines.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Rockingham County1 WSW Green Mt 14 1620EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There was a tree down.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Rockingham County1 ENE Linville 14 1620EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There was a tree down on Simmers Valley Rd.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Page County1 WSW Spitler 14 1629EST 0 0 0.00K 0.00K Hail (1.25)Page County1 SSE Luray 14 1629EST 0 0 0.00K 0.00K Hail (1.00)A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat.Rockingham County1 S Sparkling Spgs 14 1740EST1940EST 0 0 0.00K 0.00K Flash FloodRoad was closed due to high water.Rockingham County2 SSW Sparkling Spgs 14 1740EST1940EST 0 0 0.00K 0.00K Flash FloodRoad was closed due to high water.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail. Some storms produced flash flooding.451

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, NorthPage County2 NNW Shenandoah 14 1808EST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)There were numerous trees including 30 foot pine trees that were snapped.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Rockingham County1 NW Mt Clinton 14 1901EST2000EST 0 0 0.00K 0.00K Flash FloodMuddy Creek was above flood stage roughly between 8 and 9 pm on Tuesday evening. Flood stage is 8 feet and peaked at 8.66feet.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail. Some storms produced flash flooding.Harrisonburg (c) County1 NNE Harrisonburg 15 0700EST 0 0 0.00K 0.00K Flash FloodThere was a road closed due to high water.An exiting cold front over the DelMarVa became diffuse over southern Maryland and Central VA. Showers and thunderstormsformed and were mainly east of the Blue Ridge. Isolated severe was possible with damaging winds and heavy rain.Greene County1 NE Standardsville 15 1558EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)VIRGINIA, SouthwestThere was a tree down on South River Road.An exiting cold front over the DelMarVa became diffuse over southern Maryland and Central VA. Showers and thunderstormsformed and were mainly east of the Blue Ridge. Isolated severe was possible with damaging winds. Note: The estimated windgust of 52 knots is equivalent to 60 mph.Bath County2 NW Millboro 01 1449EST1459EST 0 0 0.00K 0.00K Hail (1.00)A trained storm spotter observed quarter-sized.Bath County1 N Millboro 01 1515EST 0 0 0.00K 0.00K Hail (1.50)The public observed half-dollar-sized hail in Millboro and nickel to quarter-sized hail approximately six miles west of Goshen.Rockbridge County4 NNW Glasgow 01 1620EST1625EST 0 0 0.00K 0.00K Hail (1.00)A trained storm spotter observed hail, ranging in size from peas to quarters, along U.S. Highway 11 northwest of Glasgow.The hail fell for a period of 5 minutes.Roanoke County5 NW Roanoke City 01 1720EST1748EST 0 0 1.25M 0.00K Hail (1.75)Numerous reports of quarter to golf ball-sized hail were received from trained spotters and the public across the city ofRoanoke and surrounding areas just outside of the city on the northwest, west, and southwest sides. Quarter-sized hail wasobserved at the Glen Cove Elementary School northwest of Roanoke with golf ball-sized hail also observed nearby, quartersizedhail was observed on Green Ridge Road northwest of Roanoke, golf ball-sized hail on Peters Creek Road near theRoanoke Woodrum Field Airport, and quarter-sized hail was observed on Pine Court Road southwest of Roanoke. These werethe hail reports observed outside the independent City of Roanoke. Several hail reports were also observed within the City ofRoanoke as well, and those are addressed in a separate entry. One car dealership in Roanoke reported 200 cars receiving $4000to $5000 of damage each from this hail.452

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, SouthwestSalem (c) County1 E Salem (c) 01 1728EST 0 0 500.00K 0.00K Hail (1.00)The Salem Fire Department observed quarter-sized hail on Electric Road, which is approximately four miles west-northwest ofRoanoke. A car dealership in Salem reported $1,500 to $2,200 dollars damage to each of their 300 cars from the large hail.Roanoke County2 NE Cave Spg 01 1745EST 0 0 5.00K 0.00K LightningThe Roanoke County 911 Center reported that lightning struck a home on Garst Carbin Drive. No specific informationregarding damages or fire was provided.Franklin CountyBoones Mill 01 1806EST 0 0 0.00K 0.00K Hail (1.00)The Franklin County Fire Department observed quarter-sized hail at Boones Mill.Roanoke County5 S Roanoke City 01 1815EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The Roanoke County 911 Center reported that power lines were down on Indian Grave Road near U.S. Highway 220.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Charlotte County6 SSE Aspen 01 1915EST 0 0 0.00K 0.00K Hail (1.00)The public observed quarter-sized hail on Woodburn Lane.A broad, weak upper trough persisted across the eastern U.S., a continuation of the pattern from late July. With a very moist,unstable air mass present across the region and the presence of the upper trough, scattered to numerous thunderstormsdeveloped during the afternoon and persisted even past midnight. The storms generally progressed from the southernShenandoah Valley area of Virginia to Roanoke and south central Virginia during the late afternoon/evening. Then, around 10pm EDT, a new area of thunderstorms developed in northwest North Carolina, which also quickly became severe. The mainevent from all of these thunderstorms was severe hail, namely quarter-sized or larger. The Roanoke area was particularly hardhit when a supercell drifted across the city from northeast to southwest. Isolated thunderstorm wind events were also reported.Wythe County2 WNW Max Meadows 09 1653EST 0 0 0.00K 0.00K Hail (0.75)Radford (c) County2 ESE Radford 09 2055EST 0 0 1.00K 0.00K LightningThe public reported that lightning struck two trees along Tyler Avenue knocking them down across the road.A broad upper trough persisted across the eastern half of the United States. Meanwhile, a cold front was approaching the areafrom the west. Scattered afternoon and evening showers and thunderstorms developed across the region in the warm, humid airmass that was present in advance of the front.Lexington (c) CountyLexington 10 1742EST1745EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)The City of Lexington 911 Center reported that two trees were blown down within the city of Lexington. One tree was downacross Main Street in downtown Lexington and another was down on U.S. Highway 11, two miles south of Lexington.An upper trough persisted across the Ohio Valley and Great Lakes region. An associated cold front was situated just west ofthe region from Kentucky into western Tennessee. This front was finally progressing eastward and by the morning of the 11thwas located across central Virginia. As the front approached the area from the west during the afternoon and evening, showersand thunderstorms developed in the warm, humid air mass across the region. One of these briefly became severe and producedminor wind damage in the Lexington area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.453

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012VIRGINIA, SouthwestHenry County4 WSW Ridgeway 11 1830EST 0 0 0.00K 0.00K Hail (0.75)Henry CountyRidgeway 11 1834EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)A trained storm spotter reported that two trees were down across a local road west of Ridgeway.The upper trough that had persisted across the Great Lakes and Ohio Valley region for much of the week had drifted easttoward the eastern Great Lakes. The associated frontal system was nearly stationary from central Virginia into northwest NorthCarolina, or roughly from Washington D.C. to near Winston-Salem North Carolina. The frontal system remained the focus forisolated to scattered afternoon and evening shower and thunderstorm development. A supercell thunderstorm developed acrosssouthern Rockingham county North Carolina and moved quickly north-northeast into south central Virginia. The thunderstormproduced minor wind damage in Henry county Virginia. Penny-sized hail was also reported. Note: The estimated wind gust of50 knots is equivalent to 58 mph.Rockbridge County1 NNE Rockbridge Baths 14 1810EST1820EST 0 0 0.00K 0.00K Hail (1.00)The public observed dime to quarter-sized hail for up to 10 minutes along Walkers Creek Road.Rockbridge County1 NE Rockbridge Baths 14 1813EST1823EST 0 0 0.00K 0.00K Hail (1.00)The public observed dime to quarter-sized hail which fell for five to ten minutes along Anderson Farm Road from one to twomiles east-northeast of Rockbridge Baths.The upper trough and frontal system lingered across the region. A broad upper trough covered much of the eastern UnitedStates. The frontal system that moved into the region late the previous week, remained nearly stationary from eastern Virginiainto central North Carolina. Thunderstorms developed across eastern West Virginia during the afternoon and drifted into partsof central Virginia by early evening. With the air aloft relatively cold for August as a result of the presence of the upper trough,hail was the main event from the thunderstorms. One thunderstorm in particular became severe across Rockbridge county incentral Virginia and produced quarter-sized hail.Henry County1 NNE Aiken Summit 15 1435EST 0 0 0.00K 0.00K Hail (1.25)The public observed quarter to 1.25 inch diameter hail along Axton Road near Keen Drive west of Cascade, or approximatelyfive miles north-northeast of Eden, North Carolina.Pittsylvania County2 WSW Cascade 15 1435EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)The public reported that several trees were down on Cobbs Knob Road west of Cascade, or approximately five miles northnortheastof Eden, North Carolina.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Pittsylvania County1 WSW Cascade 15 1440EST 0 0 0.00K 0.00K Hail (1.00)The public observed nickel to quarter-sized hail on Gerlene Lane near the North Carolina line, west of Cascade, orapproximately five miles north-northeast of Eden, North Carolina.Pittsylvania County1 NW Cascade 15 1440EST 0 0 0.00K 0.00K Hail (1.00)The public observed quarter-sized hail at the intersection of Cascade Mill Road and Loblolly Drive or approximately one milenorthwest of Cascade, only a few miles north of the North Carolina state line.An ever persistent upper trough and associated frontal system lingered across the eastern United States. The broad uppertrough was centered near Ohio, while the frontal system was stalled across eastern Virginia into north central North Carolina.With a warm, humid air mass across the region, especially across eastern Virginia and northern North Carolina, showers andthunderstorms developed during afternoon heating once again. One of these in Pittsylvania county became severe andproduced quarter to near half-dollar-sized hail.454

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WASHINGTON, NortheastWAZ044Waterville Plateau01101127PST1200PST 0 0 100.0K 0.00K WildfireThe Crane Road Fire burned through 12,000 acres of sagebrush, grassland, and light timber in northern Douglas County, acrossthe Columbia River from Brewster. The fire started when controlled burning of orchard weeds at an organic farm spread to drygrass and was quickly fanned by 25 mph winds. Seven outbuildings were burned on the first day of the fire, but no homes werelost. The fire also consumed several power-poles.WAZ042East Slopes Northern Cascades05091100PST0000PST 0 0 0.00K 0.00K WildfireThe Antoine 2 Wildfire burned 6,837 acres of grass, heavy sage, and timber across steep and rocky terrain seven miles north ofChelan, Washington near Wells Dam on the Columbia River in Chelan and Okanogan counties. The cause of the fire remainedunder investigation. The fire threatened fifty homes at one time, but no structures were loss. Highway 97 was briefly closedMonday, August 6th, when the flames jumped over the road.WAZ043Okanogan Valley14191930PST0000PST 0 0 100.0K 0.00K WildfireThe Buffalo Lake Road Fire started at 2030 on Tuesday, August 14, 2012 and grew quickly due to high winds burningapproximately 7,800 acres by the evening of August 15th. The lightning caused fire eventually grew to 11,299 acres and wasfully contained on Sunday August 19th. The fire was located approximately 5 miles north of Coulee Dam, WA and burnedthrough grass, shrubs, bitter brush, and pockets of scattered timber. Nine homes and the communities of Elmer City andCoulee Dam were threatened. Two outbuildings (barns) were burned.WAZ044Waterville Plateau19211125PST1700PST 0 0 0.00K 0.00K WildfireLightning was the cause of a 825 acre wildfire eleven miles east of Wenatchee, WA in Douglas County. The wildfire burnedprimarily through grass and sage. No structures were burned in the fire.WASHINGTON, SoutheastWAZ520East Slopes Of The Washington Cascades13281200PST1700PST 0 0 8.3M 0.00K WildfireWEST VIRGINIA, EastThe Taylor Bridge Fire burned from August 13 to 28 and was human caused. It burned 23,500 acres of timber and grass andalso consumed around 60 homes.Berkeley County3 WNW Glengary 01 1625EST 0 0 0.00K 0.00K Hail (1.00)Hail ranged from pea to quarter size during a ten minute period.Hardy County2 E Lost River 01 1952EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)There were large branches down and damage along Mill Gap Road and Rockbridge Road.A trough of low pressure over the region was able to trigger a few showers and thunderstorms. A hot and humid air masscaused enough instability for a couple thunderstorms to produce damaging wind gusts and large hail. Note: The estimated windgust of 52 knots is equivalent to 60 mph.455

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WEST VIRGINIA, EastGrant County1 SW Falls 09 1222EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Tree down blocking Knobley Road near Rt 48 Intersection.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Morgan County1 NNW Stotlers Xrds 09 1529EST 0 0 0.00K 0.00K Hail (1.25)Morgan County1 NNW Stotlers Xrds 09 1529EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)Downed tree limbs along Winchester Grade Road.A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to thedevelopment of severe thunderstorms that produced damaging winds and hail. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Morgan CountyOmps 09 1625EST1825EST 0 0 0.00K 0.00K Flash FloodThere were multiple roads closed due to flooding in the southern portion of the county.A cold front approached the Mid Atlantic from the west during the afternoon. Instability and wind shear led to the developmentof severe thunderstorms that produced damaging winds and hail. An isolated thunderstorm produced flash flooding.Morgan County1 SE Great Cacapon 10 1526EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)There was a tree down on the 3000 block of Cacapon Rd.A cold front crossed the Mid Atlantic from the west in the afternoon. An abundant amount of instability and wind shear led tothe development of severe thunderstorms that produced damaging winds. Note: The estimated wind gust of 52 knots isequivalent to 60 mph.Morgan County2 ESE Hansrote 14 1540EST 0 0 0.00K 0.00K Hail (1.00)Hardy County1 WSW Moorefield Muni Arpt 14 1645EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)WEST VIRGINIA, NorthThere was a tree knocked down across Winchester Ave near Frenchys Dr.A cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Marion County1 SW Jayenn 01 1542EST 0 0 0.00K 0.00K Hail (0.88)A weak upper level shortwave crossing the region supported the development of a few showers and thunderstorms, mainlyalong the ridges in northwestern Pennsylvania and northern West Virginia. Some sub-severe hail was reported with thesestorms.Monongalia County1 E Westover 08 2000EST 0 0 0.00K 0.00K Hail (1.00)Showers and thunderstorms, which developed along a lake breeze, moved southward with a slowly moving cold front in theafternoon on the 8th.Tucker County1 N Porterwood 09 1131EST 0 0 0.00K 0.00K Hail (0.75)456

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WEST VIRGINIA, NorthTucker County1 ENE St George 09 1135EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)State official reported trees down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Monongalia County1 E Westover 09 1235EST 0 0 0.00K 0.00K Hail (0.75)Monongalia County1 E Westover 09 1238EST 0 0 0.00K 0.00K Hail (0.75)Monongalia County1 E Westover 09 1247EST 0 0 0.00K 0.00K Hail (1.00)Monongalia County1 WSW Fieldcrest 09 1248EST 0 0 0.00K 0.00K Hail (0.88)Monongalia County1 WSW Fieldcrest 09 1252EST 0 0 0.00K 0.00K Hail (0.88)Tucker County1 ENE St George 09 1257EST 0 0 0.00K 0.00K Hail (0.75)Marion County1 W Fairmont 09 1310EST 0 0 0.00K 0.00K Hail (0.75)Preston County2 NNW Zar 09 1344EST 0 0 0.25K 0.00K Thunderstorm Wind (50EG)West Virginia Department of Highways reported one tree down.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Preston County1 N Hiorra 09 1508EST 0 0 0.00K 0.00K Hail (0.88)Showers and thunderstorms, some of which became severe, developed along a stalled boundary of the region on the 9th. Thesestorms, supported by an upper level shortwave and increased instability, moved along the boundary and produced wind damageand hail to portions of eastern Ohio, northern West Virginia, and western Pennsylvania.WEST VIRGINIA, SoutheastMercer CountyGiatto 01 2115EST2245EST 0 0 1.00K 0.00K Flash FloodThe Mercer County 911 Center reported that heavy rain, on the order of 2.0 to 3.0 inches from a localized thunderstorm on topof previous heavy rainfall from earlier thunderstorms, caused a rock slide in Motoaka. One road was closed for a brief perioduntil the debris could be cleared off the road.A broad, weak upper trough persisted across the eastern U.S., a continuation of the pattern from late July. With a very moist,unstable air mass present across the region and the presence of the upper trough, scattered to numerous thunderstormsdeveloped during the afternoon and persisted even past midnight. During the afternoon and early evening, a majority of thestorms were found across southeast West Virginia and the southern Shenandoah Valley of Virginia. Additional isolated strongthunderstorms developed across Mercer, Greenbrier, and Monroe counties during the mid to late evening. One of thesethunderstorms persisted near the small town of Matoaka in western Mercer county dumping over two inches of rainfall across asmall area of the county in a short period of time. The ground was saturated from previous heavy rainfall, which caused anisolated flash flood event.457

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WEST VIRGINIA, SoutheastGreenbrier County4 NNE Asbury 24 1735EST 0 0 0.00K 0.00K Hail (1.00)The Greenbrier County 911 Center reported that quarter-sized hail fell near mile marker 162 on Interstate 64, west ofLewisburg or north-northeast of Asbury.A weak cutoff upper low was drifting north from along the southeast United States coast toward the mid-Atlantic coast. Adiffuse stationary frontal system was evident across the coastal plain of Virginia and North Carolina. Meanwhile, weakembedded upper level disturbances were noted in the westerlies that were tracking across the Ohio Valley. The patterncontributed to isolated afternoon and evening shower and thunderstorm development. The majority of the storms developed inupslope flow across West Virginia, west of the Alleghenys. One of these storms reached severe limits and produced quartersizedhail in south central Greenbrier county, just north-northeast of Asbury.WEST VIRGINIA, WestLogan CountyLogan 01 1500EST 0 0 0.00K 0.00K Hail (0.88)Kanawha CountyCedar Grove 01 1645EST 0 0 0.00K 0.00K Hail (0.75)Kanawha County1 NNW Clendenin 01 1715EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down along Elk River Road.An old cold frontal boundary interacted with a warm unstable environment. As a result, convection developed during theafternoon. Outflow boundaries created new storms to the south and east of the previous convection. The slow movement of thestorms caused some local downpours, but no significant flash flooding occurred. Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Wirt CountyElizabeth 09 2005EST 0 0 0.00K 0.00K Hail (0.88)Thunderstorms formed in Ohio during the afternoon near a weak front. These storms moved through southeast Ohio during theearly evening, reaching into western West Virginia later in the evening.Raleigh County(BKW)Raleigh Co Arpt 24 1610EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)WISCONSIN, NortheastA gust to 59 mph was measured.A mid level disturbance was centered in Virginia. A disturbance rotated around this feature into the mountainous counties ofWest Virginia. Scattered afternoon thunderstorms formed and moved toward the west. One stronger cell had its small hail corecollapse into the drier low levels. This caused a local strong wind gust at the Raleigh County Airport. No damage was known.Note: The measured wind gust of 51 knots is equivalent to 59 mph.WIZ035-045-048Portage - Waushara - Winnebago - Wood01310000CST0600CST 0 0 0.00K 0.00K DroughtSeveral bouts of hot weather in August and only near normal precipitation helped to maintain severe drought (D2) conditions inWood County, Portage County and Waushara County throughout the month and into September 2012. The Fox Valleyreceived a bit more rainfall, helping improve conditions in Winnebago County from severe drought (D2), during the first fewweeks of the month, to moderate drought (D1) by the last week of the month.Oneida County1 SE Three Lakes 01 1242CST 0 0 0.00K 0.00K Hail (0.75)Penny size hail fell one mile southeast of Three Lakes.Vilas County1 S Lac Du Flambeau 01 1635CST 0 0 0.00K 0.00K Hail (1.75)Penny to golf ball size hail fell in Lac Du Flambeau.458

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, NortheastVilas CountyArbor Vitae 01 1701CST 0 0 0.00K 0.00K Hail (1.00)The public reported hail estimated to be one inch in diameter near Arbor Vitae.Scattered thunderstorms developed ahead of an upper level disturbance and moved into north-central Wisconsin during the lateafternoon. While most of the hail was less than penny-size, an isolated report of golf-ball size hail was reported in VilasCounty.Wood County2 NW Wisconsin Rapids 02 0000CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several trees were knocked down by strong thunderstorm winds.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Portage CountyPlover 02 0014CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Several trees were reported down in Plover by local law enforcement. The time of the event was estimated.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Winnebago County1 NNE Larsen 02 0055CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)Thunderstorm winds knocked trees down in the town of Clayton.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Outagamie CountyAppleton 02 0105CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)WISCONSIN, NorthwestThunderstorm winds produced a wind gust of 58 mph in the town of Grand Chute.Severe thunderstorms developed early Thursday morning as a strong upper level jet stream moved across the Midwest. Severalwind gusts in the 50 to 60 mph range produced minor damage across parts of central Wisconsin. Note: The measured windgust of 50 knots is equivalent to 58 mph.Ashland CountyAshland 01 1030CST 0 0 0.00K 0.00K Hail (0.88)Ashland County2 SE Odanah 01 1045CST 0 0 0.00K 0.00K Hail (1.75)Ashland County2 SE Odanah 01 1049CST 0 0 0.00K 0.00K Hail (1.00)A weak frontal boundary moved through Ashland County and triggered a few severe thunderstorms.Douglas County2 E Superior 09 1019CST 0.05 20 0 0 0.00K 0.00K Tornado (EF0)A weak waterspout made landfall as a brief tornado at Bakers Island. There was no damage.Sawyer County2 WNW Seeley 09 1055CST1105CST 0 0 0.00K 0.00K Hail (0.88)Hail fell for ten minutes. Most of the hail was small, but some stones were nickel-sized.459

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, NorthwestSawyer County3 WNW Phipps 09 1120CST 0 0 0.00K 0.00K Hail (1.00)WISCONSIN, SoutheastHail occurred at Nelson Lake.Thunderstorms developed behind a cold front, in a cold air mass over Lake Superior. A weak waterspout over Duluth's harbormoved briefly onshore as a tornado on Barkers Island.WIZ046-051>052-056>060-062>072Columbia - Dane - Dodge - Fond Du Lac - Green - Green Lake - Iowa - Jefferson - Kenosha - Lafayette -Marquette - Milwaukee - Ozaukee - Racine - Rock - Sauk - Sheboygan - Walworth - Washington -Waukesha01310000CST2359CST 0 0 DroughtThe extremely dry conditions continued through August across southern Wisconsin. Several widely-spaced rounds of showersand thunderstorms brought between 1.5 and 3 inches of rain to southern Wisconsin for the month, but monthly deficits rangedfrom 1.2 inch to 2.7 inches. This increased the yearly precipitation deficits to between 4 and 8 inches. The extreme heat of thesummer of 2012 was tempered a bit mid-month, with at, or slightly below normal temperatures between the 10th and the 20th.But the month ended with above normal temperatures that included 90-degree highs for a few days, increasing the damagingeffects on already stressed crops and putting additional pressure on water supplies.Progression of drought conditions across Wisconsin during August, 2012. Percentages of area covered bythe different drought ratings are provided in the table. There was improvement over southern Wisconsinfor the month, but drought conditions worsened over northern Wisconsin.Washington CountyKewaskum 07 1500CST1505CST 0 0 2.00M Hail (1.75)A trained spotter reported large hail, between 1 1/4 inch and 1 1/2 inch in diameter that fell in Kewaskum. The 5-8 minute hailstorm was the worst to hit Kewaskum in many years. Roughly 200 vehicles suffered damage from the hail, as well as manyhomes, condos, apartments and outdoor equipment. Hail damage to vehicles was about $250,000, and about $1.75 M tobuildings and equipment. This information was supplied by local auto-body shops and insurance companies and is a broadestimate.A cold front...moving into a hot, unstable air mass over southeastern Wisconsin produced scattered strong to severethunderstorms during the late afternoon hours of August 7th. High temperatures rose to around 90 degrees, with dew pointrising to the lower to middle 60s in eastern sections due to a lake breeze bringing in moisture off Lake Michigan. The lakebreeze also enhanced low level convergence, aiding the overall forcing along the front for thunderstorm development. SurfacebasedCAPE values were between 2,000 and 3,000 J/kg, with steep mid-level lapse rates and sufficient bulk shear to support thesustained updrafts needed to produce large hail. The thunderstorms produced large hail up to 1.50 inch in diameter thatdamaged trees, vehicles, homes and outdoor equipment in Kewaskum in Washington County, with reports of smaller hailbetween 1/4 inch and 3/4 inch in Fond Du Lac and Dodge counties.460

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, SoutheastPictures of large hail stones that pelted the Kewaskum, WI area on August 7, 2012. The size of the largesthail stones reached 1.25 to 1.50 inches, however the duration of the hail ranged from 5 to 8 minutes.This hail storm was easily the the worst in many decades, and resulted in about $2 Million in propertydamage. As of late October, 2012, local body shops were still repairing vehicle damage.Marquette CountyWestfield 16 0212CST0315CST 0 0 Thunderstorm Wind (50EG)Law enforcement officials reported a tree down across a road in Westfield Township, blown down by thunderstorm wind gustsestimated up to 50 knots (58 mph). There were other nearby reports of large broken tree branches or knocked-over trees.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Waukesha County3 SW Brookfield 16 0527CST 0 0 Hail (0.88)A trained spotter reported nickel-sized hail (0.88 inch in diameter) near the intersection of Interstate 94 and Moorland Road inBrookfield.Thunderstorms developed over western Wisconsin ahead of a cold front, with isolated thunderstorms becoming severe as theymoved into South Central Wisconsin. The storms strengthened as they moved into a region of increased instability, with mostunstableCAPE up to 1000 J/kg and moderate effective shear. The severe thunderstorms produced wind gusts up to 50 knots (58mph) that downed trees in Marquette County, with strong thunderstorms producing nickel-sized hail near Brookfield inWaukesha County during the early morning hours of August 16th.WIZ046-051>052-056>058-062>064-067>070-072Columbia - Dane - Dodge - Fond Du Lac - Green - Green Lake - Iowa - Jefferson - Kenosha - Lafayette -Marquette - Rock - Sauk - Sheboygan - Walworth26272200CST0500CST 0 0 Dense FogAn upper level trough of low pressure brought rain showers to southern Wisconsin during the morning and early afternoonhours of August 26th. The rain-moistened boundary layer cooled with the clearing of mid and high-level clouds associatedwith the upper-trough as it exited to the east of the region during the evening. Dense fog developed across southern Wisconsinduring the late evening hours of August 26th, with widespread visibilities at or below 1/4 mile lingering through daybreak onAugust 27th.461

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, SouthwestWIZ029-034-041>044-053>055-061Adams - Clark - Crawford - Grant - Jackson - Juneau - La Crosse - Monroe - Richland - Vernon01310000CST2359CST 0 0 0.00K DroughtPersistent below normal precipitation allowed severe drought conditions to expand farther into central Wisconsin. The severedrought was affecting areas along and south of Interstate 90 along with most of Jackson County and the southern portion ofClark County. Affects of the drought include damaged crops, pastures that have stopped growing, river flows that were lessthan 20 percent of normal, falling ground water levels and high to extreme fire dangers resulting in burning bans. The U.S.Dept. of Agriculture in early August announced an expansion of emergency haying and grazing on conversation land to bringgreater relief to livestock producers dealing with shortages of hay and pastureland. The entire state of Wisconsin remained in astate of emergency due to drought. The period of harvesting hay on state owned land ended August 10th for prairie grasses andAugust 30th for cool season grasses.Jackson County1 NNE Pleasant View 01 2255CST 0 0 1.50K 0.00K Thunderstorm Wind (56EG)Some trees were blown down along U.S. Highway 12 near the Castle Mound State Forest Area.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Clark County1 SE Neillsville 01 2315CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)Power lines and trees were blown down in Neillsville.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Jackson County4 ESE Pray 01 2328CST 0 0 2.00K 0.00K Thunderstorm Wind (56EG)A tree was blown down onto a shed southeast of Pray.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Clark County1 NNE Veefkind 01 2344CST 0 0 0.00K 0.00K Hail (1.00)Vernon County2 SSE Bud 02 0315CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)Trees were blown down in Sidie Hollow County Park.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Vernon County2 SW Westby 02 0319CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on West Smith Road south of Westby.A cluster of thunderstorms along a cold front produced damaging winds and large hail across parts of central and southwestWisconsin in the late evening hours of August 1st and in the early morning hours of August 2nd. These storms blew down treesnear Viroqua (Vernon County) and power lines in Neillsville (Clark County). Note: The estimated wind gust of 50 knots isequivalent to 58 mph.Buffalo County1 NE Fountain City 15 2300CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down near Fountain City.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Buffalo County3 ESE Fountain City 15 2309CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down onto County Road M near the intersection of County Road YY just east of Fountain City.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.462

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, SouthwestTrempealeau County1 E Centerville 15 2320CST2323CST 0 0 0.00K 5.00K Thunderstorm Wind (52EG)Strong winds blew down corn and combined with nickel sized hail stripped crops along and near Highway 35 betweenGalesville and Centerville.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Trempealeau County2 WNW Trempealeau 15 2326CST2335CST 0 0 0.00K 0.00K Hail (1.00)Quarter sized hail fell for around 10 minutes at Perrot State Park.La Crosse County1 SSW Holmen 15 2338CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Power lines and tree branches were blown down near the Holmen Police Department.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.La Crosse County2 ENE New Amsterdam 15 2339CST 0 0 0.00K 0.00K Hail (1.50)La Crosse County2 N Holmen 15 2339CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down across County Road V and Moe Coulee Road north of Holmen.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.La Crosse County1 E Holmen 15 2341CST 0 0 40.00K 0.00K Thunderstorm Wind (50EG)A large tree was blown down on a house east of Holmen. Large branches on the tree pierced through the roof allowing water toenter the house.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.La Crosse County2 SSW Council Bay 15 2344CST 0 0 0.00K 0.00K Hail (1.00)La Crosse CountyMidway 15 2344CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)An estimated 60 mph wind gust occurred on the south side of Holmen.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.La Crosse County1 N Bangor 15 2357CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees and power lines were blown down near the intersection of State Highways 162 and 16 north of Bangor.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Monroe County1 S Sparta 16 0010CST0013CST 0 0 0.00K 0.00K Hail (1.00)Dime to quarter sized hail fell and was accompanied by wind gusts of 45 to 50 mph just south of Sparta along Interstate 90 atExit 25 for State Highway 27.463

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, SouthwestMonroe CountyLeon 16 0010CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)A 60 mph wind gust along with one inch hail occurred in Leon.Note: The measured wind gust of 52 knots is equivalent to 60 mph.Juneau County1 W New Lisbon 16 0140CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down on County Road A between Hustler and New Lisbon.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Juneau County1 SE Mauston Nw Lsbn Arpt 16 0150CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down across U.S. Highway 12/State Highway 16 between Mauston and New Lisbon.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Adams County2 NE Plainville 16 0216CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down northeast of Plainville.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Adams County4 SSE Adams 16 0221CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down south of Friendship.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Adams County4 SSE Brooks 16 0229CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)Trees were blown down south of Brooks.As a cold front moved across Wisconsin, it sparked severe thunderstorms during the late evening of August 15th into the earlymorning hours of August 16th. These storms produced a path of damaging winds and large hail from the southern portions ofBuffalo County to the southeast corner of Adams County. The most concentrated wind damage was near the Trempealeau-LaCrosse County line, including communities of Galesville and Holmen, where estimated winds of 60 mph knocked down severaltrees and power lines. Most of the hail was estimated to be about the size of a quarter with this falling for up to 10 minutes atPerrot State Park (Trempealeau County). Note: The estimated wind gust of 50 knots is equivalent to 58 mph.Jackson County2 WNW Winnebago Mission 24 0320CST0930CST 0 0 210.00K 0.00K LightningA log home was completely destroyed by a fire that was started by a lightning strike. Fire crews were first called to the areaaround 330 a.m. but found no evidence of a fire and left. They returned to the scene around 5 a.m. to find the home completelyengulfed in flames. Three fire departments battled the fire for over 4 hours. Local officials estimated the value of the home andcontents at just over $200,000.A lightning strike from early morning thunderstorms on August 24th produced a fire that destroyed a log home north of BlackRiver Falls (Jackson County). Fire crews were originally called to the scene around 330 a.m. but did not find any evidence of afire and left. They were called back around 5 a.m. and found the home fully engulfed in flames. Local officials estimated thevalue of the home and its contents at just over $200,000.WISCONSIN, WestSt. Croix County3 W Cylon 03 2205CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)Large tree limbs were blown down near Highway 64, and 190th Street, east of New Richmond.Note: The estimated wind gust of 50 knots is equivalent to 58 mph.464

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, WestPolk CountyOsceola Muni Arpt 03 2250CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down across Highway 35 near Osceola.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County1 SW Centuria 03 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down just north of 160th Street.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.St. Croix County1 E Hudson 03 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)Several trees were blown down near Hudson.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.St. Croix County1 S Somerset 03 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A tree was blown down near Somerset.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County4 SW Little Falls 03 2305CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down southwest of Little Falls.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Polk County2 ENE Horse Creek 03 2305CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Horse Creek.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.St. Croix County1 NE Roberts 03 2310CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)A few trees were blown down near Roberts.Note: The estimated wind gust of 56 knots is equivalent to 64 mph.Polk County2 ENE Range 03 2325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Range.Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Pierce County1 NE Bay City 03 2330CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)A large tree was blown down near Bay City.Severe thunderstorms that developed in north central South Dakota, and had moved east-southeast across eastern South Dakota,and central Minnesota, eventually moved through the Twin Cities, then in west-central Wisconsin prior, and after midnight, andproduced some wind damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.Dunn County4 WSW Ridgeland 09 1215CST1220CST 0 0 0.00K 50.00K Hail (1.00)Quarter size hail, and strong winds caused damage to both corn, and soy bean crops southwest of Ridgeland, Wisconsin. Thecorn and soy beans were completely stripped and flattened for a five mile long, and 1.5 mile wide path.Pepin CountyStockholm 09 1520CST 0 0 0.00K 0.00K Hail (1.00)Quarter size hail was observed on Lake Pepin.465

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012WISCONSIN, WestSeveral thunderstorms developed during the afternoon of Thursday, August 9th across west-central Wisconsin. The activitymoved southeast and generated a few stronger storms, one of which produced quarter size hail, along with a swath of damagedue to accompany strong winds across northern Dunn County near Ridgeland.St. Croix County2 E Hudson 18 2145CST 0 0 300.00K 0.00K LightningWYOMING, NortheastLightning stuck a condominium in Hudson, Wisconsin and created an attic fire. No one was injured, but damages wereestimated up to $300,000.The evening of Saturday, August 18th, lightning stuck a condominium on 1504 Hunter Hill Rd in Hudson, Wisconsin. Fire wasconfined to the attic on two of the four condo units in the building, and damage was estimated around $300,000. No one wasinjured in the fire.Crook County9 W Sundance 02 1520MST 0 0 10.00K 0.00K Hail (1.75)Crook County1 SSE Sundance 02 1548MST1551MST 0 0 50.00K 0.00K Hail (1.75)WYOMING, SoutheastA severe thunderstorm developed over southwestern Crook County and tracked eastward. The storm produced golf ball sizedhail from Keyhole Reservoir to Sundance.Converse CountyBill 06 1430MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)A collapsing thunderstorm produced a wind gust of 61 mph at Bill.WYZ113-116-117A collapsing thunderstorm produced a wind gust of 61 mph near Bill. Note: The measured wind gust of 53 knots is equivalentto 61 mph.South Laramie Range - South Laramie Range Foothills - Upper North Platte River Basin11 1423MST1515MST 0 0 0.00K 0.00K High WindOutflow winds from collapsing showers exceeded 58 mph over portions of southeast Wyoming.LAKE ST. CLAIRLCZ460Lake St. Clair (US Portion)13 1615EST 0 0 0.00K 0.00K WaterspoutA waterspout was observed over Lake St. Clair.GULF OF MEXICOGMZ830Tampa Bay01 1030EST1043EST 0 0 0.00K 0.00K WaterspoutA weak trough over the southeastern United States produced southeast flow over the Gulf of Mexico with scattered showersand isolated thunderstorms. One of these storms produced a brief lived waterspout.466

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GULF OF MEXICOGMZ530Lake Ponchartrain and Lake Maurepas04 0614CST 0 0 0.00K 0.00K Marine Thunderstorm WindA hot, unstable airmass aided the development of thunderstorms during the morning hours.GULF OF MEXICOGMZ335-355Galveston Bay - High Island to Freeport TX out 20nm05 0910CST1030CST 0 0 0.00K 0.00K WaterspoutFunnel clouds and waterspouts developed in and around the Galveston Bay area.GULF OF MEXICOGMZ043Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef06 1031EST 0 0 0.00K 0.00K Marine Thunderstorm WindA weak trough of low pressure moving west in the southeast Gulf of Mexico, in combination with a deep moist air mass,produced scattered showers and thunderstorms in the Florida Straits. Isolated gale-force wind gusts were observed inassociation with the thunderstorms.GULF OF MEXICOGMZ750Apalachicola to Destin FL out 20nm06 1102EST1115EST 0 0 0.00K 0.00K WaterspoutA tropical wave moved from east to west across the area. Thunderstorms associated with this disturbance produced a couple ofwaterspouts south of Panama City and Destin.GULF OF MEXICOGMZ655Destin to Pensacola FL out 20nm07 0725CST0727CST 0 0 0.00K 0.00K WaterspoutThunderstorms developed over the marine area and produced waterspouts.GULF OF MEXICOGMZ750Apalachicola to Destin FL out 20nm07 0825EST 0 0 0.00K 0.00K WaterspoutA tropical wave moved from east to west across the area. Thunderstorms associated with this disturbance produced a couple ofwaterspouts south of Panama City and Destin.GULF OF MEXICOGMZ830Tampa Bay10 1428EST 0 0 0.00K 0.00K Marine Thunderstorm WindA stalled frontal boundary over northern Florida interacted with a weak tropical wave moving across central Florida. One ofthese storms produced strong marine thunderstorm wind gusts.GULF OF MEXICOGMZ530GMZ532Lake Ponchartrain and Lake Maurepas11 0708CST 0 0 0.00K 0.00K Marine Thunderstorm WindA frontal boundary draped across southern Louisiana aided in the development of strong thunderstorms during the morninghours.Mississippi Sound13 0837CST0850CST 0 0 0.00K 0.00K Waterspout467

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GULF OF MEXICOAn unstable airmass allowed a waterspout to develop over Mississippi Sound.GMZ534GMZ572Lake Borgne16 1312CST 0 0 0.00K 0.00K Marine Thunderstorm WindAn upper level disturbance moving across the southern states aided the development of strong thunderstorms during theafternoon hours.Coastal Waters From Southwest Pass Of The Mississippi River To Port Fourchon Louisiana From 20 To60 Nm20 0655CST 0 0 0.00K 0.00K Marine Thunderstorm WindUnstable air ahead of a cold front triggered the development of strong thunderstorms over the coastal waters during themorning hours.GULF OF MEXICOGMZ830-853Englewood to Tarpon Springs FL out 20nm - Tampa Bay20 1949EST2009EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front stalled over northern Florida and the Gulf of Mexico with a prefrontal trough ahead of the front sliding down thepeninsula, along with a line of thunderstorms with marine wind gusts.GULF OF MEXICOGMZ031-043>044Florida Bay - Gulf Side of the Lower Keys out 20nm - Hawk Channel From Craig Key To West End OfSeven Mile Bridge Out To The Reef - Hawk Channel From West End Of Seven Mile Bridge To HalfmoonShoal Out To The Reef21 0103EST1252EST 0 0 0.00K 0.00K Marine Thunderstorm WindNumerous showers and thunderstorms moved north from the Florida Straits and over much of the Lower and Middle FloridaKeys. Scattered gale-force wind gusts occurred with the thunderstorms, which were associated with several mesoscaleboundaries embedded within deep tropical moisture.GULF OF MEXICOGMZ335Galveston Bay21 1636CST1650CST 0 0 0.00K 0.00K WaterspoutA waterspout developed near Beach City, eventually moved inland, and caused no damage.GULF OF MEXICOGMZ043Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef22 0159EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn isolated thunderstorm produce a gale force wind gust in Hawk Channel southwest of Marathon, Florida.GULF OF MEXICOGMZ552Coastal Waters From Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Nm22 1448CST 0 0 0.00K 0.00K Marine Thunderstorm WindA stationary front along the Louisiana coast focused the development of a few strong thunderstorms near Grand Isle.468

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GULF OF MEXICOGMZ450Cameron LA to High Island TX out 20nm24 0648CST 0 0 0.00K 0.00K Marine Thunderstorm WindA thunderstorm over the coastal waters produced a high wind gust.GULF OF MEXICOGMZ031-043>044Florida Bay - Gulf Side of the Lower Keys out 20nm - Hawk Channel From Craig Key To West End OfSeven Mile Bridge Out To The Reef - Hawk Channel From West End Of Seven Mile Bridge To HalfmoonShoal Out To The Reef24 0810EST0856EST 0 0 0.00K 0.00K Marine Thunderstorm WindNumerous showers and thunderstorms containing gale-force wind gusts developed along the outer edge of the circulation ofTropical Storm Isaac within a surface trough. The center of Tropical Storm Isaac was located south of Haiti during theafternoon of August 24, 2012.GULF OF MEXICOGMZ530Lake Ponchartrain and Lake Maurepas24 1315CST 0 0 0.00K 0.00K Marine Thunderstorm WindAn isolated strong thunderstorm developed over Lake Pontchartrain.GULF OF MEXICOGMZ044Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef24 1320EST 0 0 0.00K 0.00K Marine Thunderstorm WindNumerous showers and thunderstorms containing gale-force wind gusts developed along the outer edge of the circulation ofTropical Storm Isaac within a surface trough. The center of Tropical Storm Isaac was located south of Haiti during theafternoon of August 24, 2012.GULF OF MEXICOGMZ830-850-853-856Bonita Beach to Englewood FL out 20nm - Englewood to Tarpon Springs FL out 20nm - Tampa Bay -Tarpon Springs to Suwannee River FL out 20nm26 0953EST2001EST 0 0 0.00K 0.00K Marine Thunderstorm WindGMZ830-853Englewood to Tarpon Springs FL out 20nm - Tampa Bay27 0000EST1442EST 0 0 0.00K 0.00K Marine Thunderstorm WindGMZ830GMZ853Tampa Bay27 1543EST 0 0 0.00K 0.00K WaterspoutEnglewood to Tarpon Springs FL out 20nm27 1600EST 0 0 0.00K 0.00K Marine Thunderstorm WindTropical Storm Isaac crossed eastern Cuba on August 25th and moved northwest through the Florida Keys and into the easternGulf of Mexico. A Tropical Storm Watch was issued for Pinellas County south through Lee County on the morning of the 25thand was extended north through Levy County that afternoon. Tropical Storm Warnings were issued overnight on the 25th/earlymorning on the 26th for the entire area. Additionally, the Governor of Florida issued a declaration of a state of emergency onthe 25th. Isaac stayed off the western Florida coast and eventually made landfall in southeastern Louisiana at Hurricanestrength.The impacts of Isaac over west central and southwest Florida were minimal. One waterspout was spotted over the Tampa Bayand moved inland as a brief tornado with minor damage.Tropical storm force wind gusts were confined to coastal area, with wind gusts of 34 to 46 knots reported along the coast.469

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012GULF OF MEXICOGMZ550-552-555-570-572-575-577Coastal Waters From Pascagoula Mississippi To Stake Island Louisiana From 20 To 60 Nm - CoastalWaters From Southwest Pass Of The Mississippi River To Port Fourchon Louisiana From 20 To 60 Nm -Coastal Waters From Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Nm -Pascagoula MS to SW Pass of MS River out 20nm - Pascagoula MS to SW Pass of Mississippi River River20 to 60nm - SW Pass of the Mississippi River River to Atchafalaya River LA 20 to 60nm - SW Pass of theMississippi River to Atchafalaya River LA out 20nm27302100CST0300CST 0 0 0.00K Marine Hurricane/TyphoonGMZ530-532-534-536-538-557BRETON SOUND - CHANDELEUR SOUND - Coastal Waters From Pascagoula Mississippi To StakeIsland Louisiana Out 20 Nm - Lake Borgne - Lake Ponchartrain and Lake Maurepas - Mississippi Sound28300300CST1500CST 0 0 3.0M 0.00K Marine Hurricane/TyphoonHurricane Isaac entered the Gulf of Mexico as a tropical storm on August 26, moving northwest after crossing Haiti, Cuba andthe Florida Straits. Isaac strengthened into a hurricane on the morning of the 28th when it was 75 miles south southeast of themouth of the Mississippi River. Isaac made landfall in Plaquemines Parish as a Category 1 hurricane near Southwest Pass of theMississippi River on the evening of the 28th. A second landfall occurred near Port Fourchon the following morning. The stormweakened to a tropical storm on the afternoon of the 29th about 50 miles west southwest of New Orleans, and weakened furtherto a tropical depression on the afternoon of the 30th near Monroe, Louisiana.The NOAA-NOS observation site at Pilot Station at the Southwest Pass of the Mississippi River recorded a sustained wind of65 knots with gust to 82 knots shortly after midnight, early on August 29th. Observation height of this instruments is 24 meterabove sea surface. Wind gusts of 85 and 92 knots were recorded on elevated oil production platforms in coastal waters. TheNOAA-NOS station at Pilots Station near Southwest Pass recorded a minimum pressure of 969.8 millibars on the evening ofthe 28th shortly after the first landfall.A storm surge of 5 to 9 feet above normal was observed around Lakes Pontchartrain and Maurepas. The highest storm surge, 9to 12 feet, occurred in eastern Plaquemines Parish and St. Bernard Parish.GULF OF MEXICOGMZ472Intracoastal City LA to Cameron LA 20 to 60nm29 0535CST1255CST 0 0 0.00K 0.00K Marine Dense FogGMZ435-450-455-475Atchafalaya River to Intracoastal City LA 20 to 60nm - Atchafalaya River to Intracoastal City LA out20nm - Cameron LA to High Island TX out 20nm - Vermilion Bay29 0724CST1615CST 0 0 0.00K 0.00K Marine Tropical StormGMZ450Cameron LA to High Island TX out 20nm30 0235CST0255CST 0 0 0.00K 0.00K Marine Tropical StormAs Hurricane Issac made landfall well east of the area tropical storm conditions were felt across the coastal waters south ofSouthwest and South Central Louisiana.GULF OF MEXICOGMZ032Gulf Side of the Lower Keys out 20nm30 0859EST0915EST 0 0 0.00K 0.00K WaterspoutA cumulus cloud line with embedded rain showers produced a well-defined waterspout northwest of Marathon, Florida.470

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ352Edisto Beach SC to Savannah GA out 20nm03 0815EST0819EST 0 0 0.00K 0.00K WaterspoutUnder a weak synoptic flow regime, waterspouts developed along the coastline of southern South Carolina.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ610-650Jupiter Inlet to Deerfield Beach FL out 20nm - Lake Okeechobee03 1248EST1430EST 0 0 0.00K 0.00K Marine Thunderstorm WindA Tropical Wave from the northern Bahamas extending to central Cuba and the western Caribbean Sea produced scatteredthunderstorms during the afternoon across Lake Okeechobee and the Atlantic Waters east of Lake Worth in Palm BeachCounty.AMZ651Deerfield Beach to Ocean Reef FL05 1040EST1055EST 0 0 0.00K 0.00K WaterspoutA weak trough in the Gulf of Mexico led to the development of showers off the southeast Florida coast.AMZ610Lake Okeechobee06 1725EST 0 0 0.00K 0.00K Marine Thunderstorm WindA surface trough extending north from Tropical Storm Ernesto in the western Caribbean Sea produced scattered thunderstormsduring the early evening over Lake Okeechobee.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ550-552Flagler Beach to Cocoa Beach FL out 20nm - Volusia-Brevard County Line to Sebastian Inlet 0 to 20nmATLANTIC, Caribbean Sea and Tropical Atlantic08 1715EST1745EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of storms formed along the west coast sea breeze and intensified as it moved east and interacted with the east coast seabreeze, producing strong to severe wind gusts from the Volusia-Brevard County line into northern Brevard County, then movedoffshore.AMZ450Altamaha Sound to Fernandina Beach FL out 20nm11 1556EST 0 0 Marine Thunderstorm WindA mid level short wave trough moved over the area during the afternoon from the west. This featured combined with prevailingWSW flow and high moisture produced scattered severe storms along the sea breezes and resultant outflow boundaries.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm12 1422EST 0 0 0.00K 0.00K Marine Thunderstorm WindA large area of showers and thunderstorms developed as the east and west coast sea breezes interacted. A couple of thesestorms became strong along the Brevard County coast, producing high winds as they exited offshore.471

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ452ATLANTIC, Caribbean Sea and Tropical AtlanticFernandina Beach to St. Augustine FL out 20nm13 1650EST 0 0 Marine Thunderstorm WindStrong storms fired during the evening across northeast Florida in the proximity of a diffusing surface front near the Florida-Georgia state line.AMZ550Flagler Beach to Cocoa Beach FL out 20nm14 1650EST 0 0 0.00K 0.00K Marine Thunderstorm WindA thunderstorm which developed along the sea breeze boundary exited mainland Brevard County and crossed the intracoastalwaterways while producing wind gusts of 38 knots.15 1720EST 0 0 0.00K 0.00K Marine Thunderstorm Wind15 1815EST 0 0 0.00K 0.00K Marine Thunderstorm Wind15 1900EST 0 0 0.00K 0.00K Marine Thunderstorm WindA strong line of storms formed and moved across the Volusia County coast as a result of sea breeze and subsequent boundaryinteractions.AMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm16 1450EST 0 0 0.00K 0.00K Marine Thunderstorm WindA severe cluster of storms developed across central Brevard County due to numerous boundary and storm interactionsfollowing development of the east and west coast sea breezes. Strong to severe winds occurred as the storms moved across thecoast and offshore into the Atlantic.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ354Savannah GA to Altamaha Sound GA out 20nm16 1646EST1647EST 0 0 0.00K 0.00K Marine Thunderstorm WindATLANTIC, Caribbean Sea and Tropical AtlanticWith a weak trough aloft and a nearly stationary front in the vicinity, thunderstorms developed in the afternoon and eveninghours and moved out over the adjacent coastal waters.AMZ270Surf City NC to South Santee River SC 20 to 40nm17 0730EST0740EST 0 0 0.00K 0.00K WaterspoutCoast Guard spotted a waterspout well off the coast of Carolina Beach.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm17 1250EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of thunderstorms developed ahead of the west coast sea breeze and interacted with the east coast sea breeze as well asother pre-existing storms and boundaries, producing high winds along the Brevard and Indian River County coasts as theymoved offshore.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ452Fernandina Beach to St. Augustine FL out 20nm17 1335EST 0 0 0.00K 0.00K Marine Thunderstorm WindMean troughing to the west and northwest continued a moist and unstable flow over the area. The west coast sea breezeadvanced inland and merged with the east coast sea breeze near the east coast during the late afternoon and evening. Isolatedstrong storms developed.472

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ555Cocoa Beach to Jupiter Inlet FL out 20nm17 1428EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of thunderstorms developed ahead of the west coast sea breeze and interacted with the east coast sea breeze as well asother pre-existing storms and boundaries, producing high winds along the Brevard and Indian River County coasts as theymoved offshore.AMZ552-555Cocoa Beach to Jupiter Inlet FL out 20nm - Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm18 1200EST1228EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of showers and storms formed ahead of the west coast sea breeze with a few embedded storms becoming strong. Thestorms produced high wind gusts along the Brevard and Indian River County coastlines as they propagated into the Atlantic.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ330Charleston Harbor19 1215EST1216EST 0 0 0.00K 0.00K Marine Thunderstorm WindATLANTIC, Caribbean Sea and Tropical AtlanticWith a high amplitude long wave trough aloft, and with a cold front positioned to the north, scattered severe thunderstormsdeveloped in the late morning and early afternoon hours.AMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm19 1615EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn outflow boundary strengthened a storm near Cape Canaveral, resulting in high winds as the storms moved offshore.AMZ550Flagler Beach to Cocoa Beach FL out 20nm20 1547EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of storms moved toward the coast and interacted with the east coast sea breeze to generate high winds near New SmyrnaBeach as the storms pushed offshore.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ352Edisto Beach SC to Savannah GA out 20nm20 1555EST1556EST 0 0 0.00K 0.00K WaterspoutATLANTIC, Caribbean Sea and Tropical AtlanticA cold front stalled along the Southern South Carolina area in the late afternoon hours. Showers and thunderstorms developedover land and the adjacent coastal waters.AMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm21 1359EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn upper level trough contributed to increased instability and combined with enhanced moisture to generate several strong tosevere storms along the Brevard County coastline as storms moved offshore into the Atlantic. Storms further intensified alongthe coast as they interacted with the east coast sea breeze and numerous outflow boundaries.22 1400EST 0 0 0.00K 0.00K Marine Thunderstorm WindScattered to numerous showers and storms developed near the Brevard County coast. One storm become strong and producedhigh winds near Cape Canaveral before pushing offshore.473

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ610Lake Okeechobee22 1730EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn upper level trough of low pressure over the eastern U.S. along with a stationary front across North Florida producedscattered thunderstorms during early evening on Lake Okeechobee.AMZ651Deerfield Beach to Ocean Reef FL23 0610EST0630EST 0 0 0.00K 0.00K WaterspoutA typically moist and unstable over the local South Florida waters during the morning hours led to the development of showers.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ350-352Edisto Beach SC to Savannah GA out 20nm - South Santee River to Edisto Beach SC out 20nmATLANTIC, Caribbean Sea and Tropical Atlantic23 1515EST1521EST 0 0 0.00K 0.00K WaterspoutWith a weak and broad trough positioned aloft and a weak trough at the surface, thunderstorms developed in afternoon heatingalong the beaches and the adjacent coastal waters.AMZ158AMZ135Cape Lookout to Surf City NC out 20nm24 1950EST 0 0 0.00K 0.00K Marine HailPamlico Sound24 2254EST 0 0 0.00K 0.00K Marine Thunderstorm WindA surface low pressure traversed Eastern North Carolina on August 25th, 2012. Numerous showers and thunderstorms occurredwith the low as it progressed northeast through the region, with several reports of strong marine thunderstorm gusts.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ555Cocoa Beach to Jupiter Inlet FL out 20nm25 0056EST 0 0 0.00K 0.00K Marine Thunderstorm WindStrengthening winds turned onshore ahead of the outer periphery of Tropical Storm Isaac, producing an isolated strong stormwith gusty winds along the St. Lucie County coastline.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ135Pamlico Sound25 0644EST 0 0 0.00K 0.00K Marine Thunderstorm WindA surface low pressure traversed Eastern North Carolina on August 25th, 2012. Numerous showers and thunderstorms occurredwith the low as it progressed northeast through the region, with several reports of strong marine thunderstorm gusts.ATLANTIC, Caribbean Sea and Tropical AtlanticAMZ552Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm28 1444EST 0 0 0.00K 0.00K Marine Thunderstorm WindTwo rounds of storms, resulting from a moist and unstable airmass in the wake of Tropical Storm Isaac, moved north along theBrevard coast. The storms produced strong to severe winds across central and northern portions of Brevard County, then movedoffshore.474

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ533-537-543 Chesapeake Bay Drum Point to Smith Point VA - Chesapeake Bay North Beach to Drum Point MD -Tangier Sound And The Inland Waters Surrounding Bloodsworth Island - Tidal Potomac Cobb IslandMD to Smith Point VA01 0250EST0440EST 0 0 0.00K 0.00K Marine Thunderstorm WindA trough of low pressure over the region was able to trigger a few showers and thunderstorms. A hot and humid air masscaused enough instability for a couple thunderstorms to produce damaging wind gusts and large hail.ATLANTIC, NorthANZ452Little Egg Inlet to Great Egg Inlet NJ out 20nm01 1705EST 0 0 0.00K 0.00K WaterspoutThe intersection of a gust front and an approaching thunderstorm from the south produced sufficient low level shear for awaterspout to develop east of Atlantic City during the early evening on the 1st.ATLANTIC, NorthANZ631-634-656Cape Charles Light VA to NC-VA border out 20nm - Chesapeake Bay From Little Creek - ChesapeakeBay New Point Comfort to Cape Henry VA - Chesapeake Bay Windmill Point to New Point Comfort VA02 1648EST1715EST 0 0 0.00K 0.00K Marine Thunderstorm WindScattered thunderstorms along a trough of low pressure produced gusty winds across portions of the Chesapeake Bay andVirginia Coastal Waters.ATLANTIC, NorthANZ537Tidal Potomac Cobb Island MD to Smith Point VA02 1724EST1730EST 0 0 0.00K 0.00K Marine Thunderstorm WindA trough of low pressure off the east coast was able to trigger a few showers and thunderstorms. A hot and humid air masscaused enough instability for a few thunderstorms to produce gusty winds.ANZ531-538Chesapeake Bay Poole`s Island to Sandy Point MD - Patapsco River Including Baltimore Harbor05 1554EST1624EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved eastward through the Mid Atlantic in the evening. Ample amounts of instability and moisture combined tocause severe thunderstorms with damaging winds and hail.ATLANTIC, NorthANZ338New York Harbor05 1630EST 0 0 Marine Thunderstorm WindA passing cold front and upper level disturbance triggered strong to severe thunderstorms across the waters around Long Island.ATLANTIC, NorthANZ531Chesapeake Bay Poole`s Island to Sandy Point MD05 1636EST1652EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved eastward through the Mid Atlantic in the evening. Ample amounts of instability and moisture combined tocause severe thunderstorms with damaging winds and hail.475

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ338New York Harbor05 1637EST 0 0 Marine Thunderstorm WindA passing cold front and upper level disturbance triggered strong to severe thunderstorms across the waters around Long Island.ATLANTIC, NorthANZ535-536Tidal Potomac Indian Head to Cobb Island MD - Tidal Potomac Key Bridge to Indian Head MD05 1644EST1700EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved eastward through the Mid Atlantic in the evening. Ample amounts of instability and moisture combined tocause severe thunderstorms with damaging winds and hail.ATLANTIC, NorthANZ338New York Harbor05 1836EST 0 0 Marine Thunderstorm WindA passing cold front and upper level disturbance triggered strong to severe thunderstorms across the waters around Long Island.ATLANTIC, NorthANZ450-451Manasquan Inlet to Little Egg Inlet NJ out 20nm - Sandy Hook to Manasquan Inlet NJ out 20nm05 1902EST1905EST 0 0 0.00K 0.00K Marine Thunderstorm WindA series of strong to severe thunderstorms moved across the New Jersey coastal waters during the evening of the 5th.ATLANTIC, NorthANZ330-335-345-355-370Fire Island Inlet NY to Sandy Hook NJ out 20nm - Long Island Sound East of New Haven CT to PortJefferson NY - Long Island Sound West of New Haven CT to Port Jefferson NY - Montauk Point NY toSandy Hook NJ 20 to 40nm - South Shore Bays from Jones Inlet through Shinnecock Bay05 1925EST2030EST 0 0 Marine Thunderstorm WindA passing cold front and upper level disturbance triggered strong to severe thunderstorms across the waters around Long Island.ATLANTIC, NorthANZ450Sandy Hook to Manasquan Inlet NJ out 20nm05 2200EST 0 0 0.00K 0.00K Marine Thunderstorm WindA series of strong to severe thunderstorms moved across the New Jersey coastal waters during the evening of the 5th.ATLANTIC, NorthANZ338-355Fire Island Inlet NY to Sandy Hook NJ out 20nm - New York Harbor05 2200EST 0 0 Marine Thunderstorm WindANZ370Montauk Point NY to Sandy Hook NJ 20 to 40nm06 0124EST 0 0 Marine Thunderstorm WindA passing cold front and upper level disturbance triggered strong to severe thunderstorms across the waters around Long Island.476

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ631Chesapeake Bay Windmill Point to New Point Comfort VA06 1830EST 0 0 0.00K 0.00K Marine Thunderstorm WindIsolated thunderstorm in advance of a frontal boundary produced gusty winds across portions of the Chesapeake Bay.ATLANTIC, NorthANZ530-533Chesapeake Bay North Beach to Drum Point MD - Chesapeake Bay North of Pooles Island MD10 0720EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front crossed the Mid Atlantic from the west in the afternoon. An abundant amount of instability and wind shear led tothe development of severe thunderstorms that produced damaging winds.ATLANTIC, NorthANZ431-451DE Bay Waters South of East Point NJ to Slaughter Beach DE - Manasquan Inlet to Little Egg Inlet NJout 20nm10 0930EST1040EST 0 0 0.00K 0.00K Marine Thunderstorm WindA large cluster of showers and thunderstorms, some of them strong, moved through all of the marine waters during the latemorning on the 10th. More isolated but still strong thunderstorms affected the area waters during that afternoon.ATLANTIC, NorthANZ330-345-355Fire Island Inlet NY to Sandy Hook NJ out 20nm - Long Island Sound East of New Haven CT to PortJefferson NY - South Shore Bays from Jones Inlet through Shinnecock Bay10 1325EST1425EST 0 0 Marine Thunderstorm WindA passing warm front and upper level short wave triggered strong to severe thunderstorms over the waters near the South Shoreof Long Island and over Eastern Long Island Sound.ATLANTIC, NorthANZ237Block Island Sound10 1435EST1454EST 0 0 0.00K 0.00K WaterspoutA series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes. These provideda focus for showers and thunderstorms to develop across southern New England. Southerly winds drew tropical moisture overthe area, resulting in very heavy rain in showers and thunderstorms that developed. In addition, strong winds in the upper levelsand 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms.ATLANTIC, NorthANZ431DE Bay Waters South of East Point NJ to Slaughter Beach DE10 1454EST 0 0 0.00K 0.00K Marine Thunderstorm WindA large cluster of showers and thunderstorms, some of them strong, moved through all of the marine waters during the latemorning on the 10th. More isolated but still strong thunderstorms affected the area waters during that afternoon.ATLANTIC, NorthANZ234Buzzards Bay10 1706EST 0 0 0.00K 0.00K Marine Thunderstorm WindA series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes. These provideda focus for showers and thunderstorms to develop across southern New England. Southerly winds drew tropical moisture overthe area, resulting in very heavy rain in showers and thunderstorms that developed. In addition, strong winds in the upper levelsand 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms.477

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ632Chesapeake Bay New Point Comfort to Cape Henry VA11 1240EST 0 0 0.00K 0.00K Marine Thunderstorm WindIsolated thunderstorm in advance of a frontal boundary produced gusty winds across portions of the Chesapeake Bay.ATLANTIC, NorthANZ531>533-537>538-543Chesapeake Bay North Beach to Drum Point MD - Chesapeake Bay Poole`s Island to Sandy Point MD -Chesapeake Bay Sandy Point to North Beach MD - Patapsco River Including Baltimore Harbor - TangierSound And The Inland Waters Surrounding Bloodsworth Island - Tidal Potomac Cobb Island MD toSmith Point VA11 1513EST1814EST 0 0 0.00K 0.00K Marine Thunderstorm WindA weak cold front situated along the Blue Ridge drifted eastward throughout the day and showers and thunderstorms formedover the waters.ANZ531-543Chesapeake Bay Poole`s Island to Sandy Point MD - Tangier Sound And The Inland Waters SurroundingBloodsworth Island14 0010EST0914EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat.ATLANTIC, NorthANZ452Little Egg Inlet to Great Egg Inlet NJ out 20nm14 1535EST1544EST 0 0 0.00K 0.00K WaterspoutA nearly stationary thunderstorm at the southern end of a line of thunderstorms produced a waterspout on the Great Baybetween Atlantic and Ocean Counties.ATLANTIC, NorthANZ530-531Chesapeake Bay North of Pooles Island MD - Chesapeake Bay Poole`s Island to Sandy Point MD14 2155EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved through the Mid Atlantic in the afternoon and evening. Scattered thunderstorms occurred with damagingwinds and hail as the main threat.ATLANTIC, NorthANZ236Narragansett Bay15 0715EST0730EST 0 0 0.00K 0.00K WaterspoutShowers and thunderstorms developed in a warm, moist atmosphere. Cold air aloft contributed to an unstable environmentresulting in severe thunderstorms. Moisture was such that rainfall rates were high enough to result in flash flooding.ATLANTIC, NorthANZ638James River From James River Bridge To Hampton Roads Bridge-Tunnel15 1436EST 0 0 0.00K 0.00K Marine Thunderstorm Wind15 1450EST 0 0 0.00K 0.00K Waterspout15 1454EST 0 0 0.00K 0.00K Marine Thunderstorm WindScattered thunderstorms along a frontal boundary produced gusty winds and a waterspout across portions of the James River.478

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ335Long Island Sound West of New Haven CT to Port Jefferson NY17 1855EST 0 0 Marine Thunderstorm WindA passing cold front triggered an isolated strong storm over Western Long Island Sound.ATLANTIC, NorthANZ531Chesapeake Bay Poole`s Island to Sandy Point MD17 1915EST1930EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved through the region and stalled south of the Chesapeake Bay. Continuous moisture along boundary aided inthunderstorm development with strong winds.ATLANTIC, NorthANZ335Long Island Sound West of New Haven CT to Port Jefferson NY17 1915EST 0 0 Marine Thunderstorm WindA passing cold front triggered an isolated strong storm over Western Long Island Sound.ATLANTIC, NorthANZ531Chesapeake Bay Poole`s Island to Sandy Point MD17 1927EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved through the region and stalled south of the Chesapeake Bay. Continuous moisture along boundary aided inthunderstorm development with strong winds.ATLANTIC, NorthANZ335Long Island Sound West of New Haven CT to Port Jefferson NY17 1930EST 0 0 Marine Thunderstorm WindA passing cold front triggered an isolated strong storm over Western Long Island Sound.ATLANTIC, NorthANZ531ANZ535Chesapeake Bay Poole`s Island to Sandy Point MD17 2006EST 0 0 0.00K 0.00K Marine Thunderstorm WindA cold front moved through the region and stalled south of the Chesapeake Bay. Continuous moisture along boundary aided inthunderstorm development with strong winds.Tidal Potomac Key Bridge to Indian Head MD22 1703EST 0 0 0.00K 0.00K Marine Thunderstorm WindA upper level trough moved over the region. An area of low pressure and southerly flow helped develop isolated showers andthunderstorms with strong winds.ATLANTIC, NorthANZ632Chesapeake Bay New Point Comfort to Cape Henry VA25 0814EST 0 0 0.00K 0.00K WaterspoutScattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced two waterspouts across portionsof the Chesapeake Bay.ATLANTIC, NorthANZ534Chesapeake Bay Drum Point to Smith Point VA25 1105EST 0 0 0.00K 0.00K Marine Thunderstorm WindLow pressure off the Carolina coast was able to produce showers with abundant moisture from the Atlantic. Strong winds aloftwere able to mix down to the surface.479

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012ATLANTIC, NorthANZ632Chesapeake Bay New Point Comfort to Cape Henry VA25 1230EST 0 0 0.00K 0.00K WaterspoutScattered thunderstorms associated with low pressure along the Mid Atlantic Coast produced two waterspouts across portionsof the Chesapeake Bay.ATLANTIC, NorthANZ534-537-541-543Chesapeake Bay Drum Point to Smith Point VA - Choptank River To Cambridge Md And The LittleChoptank River - Tangier Sound And The Inland Waters Surrounding Bloodsworth Island - TidalPotomac Cobb Island MD to Smith Point VA25 1300EST1700EST 0 0 0.00K 0.00K Marine Thunderstorm WindLow pressure off the Carolina coast was able to produce showers with abundant moisture from the Atlantic. Strong winds aloftwere able to mix down to the surface.ATLANTIC, NorthANZ431DE Bay Waters South of East Point NJ to Slaughter Beach DE25 2106EST 0 0 0.00K 0.00K Marine Thunderstorm WindBands of northwest moving thunderstorms caused strong wind gusts on Delaware Bay overnight on the 25th.ATLANTIC, NorthANZ532ANZ537ANZ532>534-537>538-541Chesapeake Bay Sandy Point to North Beach MD26 0700EST 0 0 0.00K 0.00K Marine Thunderstorm WindTidal Potomac Cobb Island MD to Smith Point VA26 1053EST 0 0 0.00K 0.00K WaterspoutChesapeake Bay Drum Point to Smith Point VA - Chesapeake Bay North Beach to Drum Point MD -Chesapeake Bay Sandy Point to North Beach MD - Choptank River To Cambridge Md And The LittleChoptank River - Patapsco River Including Baltimore Harbor - Tidal Potomac Cobb Island MD to SmithPoint VA26 1055EST1920EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn area of low pressure was located over the Mid Atlantic which increased tropical southerly flow to the region. Heavy rainwas the main threat but isolated thunderstorms produced damaging winds and lightning.ANZ537Tidal Potomac Cobb Island MD to Smith Point VA27 0050EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn area of low pressure continued to weaken as a shortwave trough moved across the region. High moisture content andisolated thunderstorms were able to produce damaging winds.LAKE HURONLHZ342-346-3475nm East of Mackinac Bridge to Presque Isle Light MI - Manistee to Point Betsi MI - Norwood MI to 5nmWest of Mackinac Bridge02 0750EST0602EST 0 0 0.00K 0.00K Marine Thunderstorm WindA line of thunderstorms resulted in some isolated strong wind gusts.480

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LAKE MICHIGANLMZ741-745Burn Harbor to Michigan City In - Wilmette Harbor to Meigs Field IL04 1540CST1605CST 0 0 0.00K 0.00K Marine Thunderstorm WindStrong to severe thunderstorms moved across parts of southern Lake Michigan during the afternoon hours of August 4th.LAKE MICHIGANLMZ043-046Michigan City in to New Buffalo MI - New Buffalo to St. Joseph MI04 1705EST1811EST 0 0 0.00K 0.00K Marine Thunderstorm WindAn unstable atmosphere was in place ahead of a strong cold front moving into the region from the west and a weak warm frontlocated across northwestern Indiana. These features combined with a high shear environment supported development ofthunderstorms across northern Illinois. These storms moved across southern Lake Michigan, producing gusty winds as theycame onshore.LAKE MICHIGANLMZ261Seul Choix Point To Rock Island Passage 5nm Offshore To Mid Lake09 1200EST1205EST 0 0 0.00K 0.00K WaterspoutAn upper trough moving over the area produced a waterspout over northern Lake Michigan on afternoon of the 9th.LAKE MICHIGANLMZ542Sturgeon Bay to Two Rivers WI09 1210CST1220CST 0 0 0.00K 0.00K WaterspoutAn upper level trough of low pressure rotated through Wisconsin resulting in numerous showers and thunderstorms. Cold airaloft associated with the trough, coupled with the warm waters of Lake Michigan, provided favorable conditions for thedevelopment of waterspouts.LAKE MICHIGANLMZ346Manistee to Point Betsi MI09 1539EST1549EST 0 0 0.00K 0.00K WaterspoutSeveral fair-weather waterspouts formed off of Manistee during a period of cooler weather in early August.LAKE MICHIGANLMZ644Point Washington to North Point Light WI09 1545CST1550CST 0 0 0.00K 0.00K WaterspoutUnstable conditions over Lake Michigan combined with nearby weak showers produced a water spout over Lake Michigan,visible from downtown Milwaukee. The waterspout was brief and only lasted an estimated 5 minutes.481

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LAKE MICHIGANLMZ740Winthrop Harbor to Wilmette Harbor IL10 0642CST0643CST 0 0 0.00K 0.00K WaterspoutA trained spotter reported two waterspouts about five miles southeast of Fort Sheridan Beach. The waterspouts occurred aboutfive minutes apart and each lasted about a minute.LAKE MICHIGANLMZ643Sheboygan to Point Washington WI10 1100CST1200CST 2 0 0.00K 0.00K Marine Strong WindA tight pressure gradient over Lake Michigan due to strengthening low pressure moving through the Ohio Valley and centralGreat Lakes was responsible for gusty northeast winds and resultant high waves at Sheboygan Harbor. Wave heights reachedas high as 14 feet at the southern Lake Michigan buoy. Winds gusted as high as 36 knots at the Sheboygan C-Man station inthe early afternoon on August 10th. The two victims were swept into Lake Michigan by high waves crashing onto theSheboygan harbor north break wall. The two were trying to recover fishing equipment which had fallen into the lake the daybefore. A third person was also washed into the lake by the high waves, but survived due to holding onto a nearby ladder. Thefirst victim's body was located the next day, Saturday, August 11th. The second victim was found the following day, onSunday, August 12th. M37IW, M21IWLAKE MICHIGANLMZ521Bay of Green Bay Cedar River to Rock Island Passage to Marinette to Fish Cr WI13 1636CST 0 0 0.00K 0.00K Marine Thunderstorm WindIsolated strong thunderstorms with small hail and gusty winds developed in association with a cold front and upper level troughof low pressure.LAKE MICHIGANLMZ740Winthrop Harbor to Wilmette Harbor IL16 0643CST 0 0 0.00K 0.00K Marine Thunderstorm WindDuring the morning of August 16th, a line of thunderstorms moved over Lake Michigan producing strong winds.LAKE MICHIGANLMZ046Michigan City in to New Buffalo MI16 0900EST0901EST 0 0 0.00K 0.00K Marine Thunderstorm WindThunderstorms developed across portions of Wisconsin during the early morning hours of the 16th and moved across LakeMichigan, producing locally gusty winds as they moved onshore.LAKE MICHIGANLMZ644Point Washington to North Point Light WI19 1532CST 0 0 0.00K 0.00K Marine Hail19 1636CST 0 0 0.00K 0.00K Marine Thunderstorm WindStrong thunderstorms formed along the lake breeze and affected the coastal and near shore areas of Lake Michigan, producinggusty winds and large hail.LAKE MICHIGANLMZ741Wilmette Harbor to Meigs Field IL20 0735CST0736CST 0 0 0.00K 0.00K WaterspoutA waterspout developed approximately a mile offshore from Navy Pier.482

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LAKE SUPERIORLSZ240Saxon Harbor WI to Black River MI01 1206EST1209EST 0 0 0.00K 0.00K Marine HailA thunderstorm dropped three-quarter inch hail near Little Girls Point on the afternoon of the 1st.04 0250EST0253EST 0 0 0.00K 0.00K Marine Thunderstorm WindA strong thunderstorm produced gusty winds near Little Girls Point on the morning of the the 4th.LSZ243Upper Entrance of Portage Canal to Manitou Island MI09 1030EST1035EST 0 0 0.00K 0.00K WaterspoutAn upper trough moving across the region produced a few waterspouts in the nearshore waters along the Keweenaw Peninsulaon the morning of the 9th.LAKE ONTARIOLOZ044Sodus Bay to Mexico Bay NY05 1436EST 0 0 0.00K Marine Thunderstorm WindThunderstorms that moved across Lake Ontario produced wind gusts to 37 knots at Oswego.LOZ043Thirty Mile Point to Sodus Bay NY08 1450EST 0 0 0.00K Marine Thunderstorm WindThunderstorms moved across Lake Ontario and produced wind gusts to 47 knots at Rochester.LAKE ERIELEZ020-041Buffalo Harbor and Upper Niagara River - Dunkirk to Buffalo NY05 1053EST 0 0 0.00K Marine Thunderstorm WindThunderstorms moved across Lake Erie producing wind gusts to 39 knots at Buffalo Harbor.LAKE ERIELEZ163Lake Erie Reno Beach to the Islands OH beyond 5nm offshore to Intl Border09 1101EST1107EST 0 0 0.00K 0.00K WaterspoutLEZ144The Islands to Vermilion OH09 2138EST 0 0 0.00K 0.00K Marine Hail09 2305EST 0 0 0.00K 0.00K WaterspoutA waterspout developed on Lake Erie in the vicinity of a stationary front. Several hours later another strong thunderstormsoccurred behind the front. This thunderstorm produced ping pong ball sized hail in the waters northeast of Sandusky.LEZ146Avon Point to Willowick OH11 1825EST 0 0 0.00K 0.00K WaterspoutAn area of low pressure located north of Lake Erie was maintaining broad cyclonic flow over the Eastern Great Lakes. With acool airmass in place, a persistent band of showers set up on Lake Erie and a waterspout was reported north of Perry.12 1010EST1025EST 0 0 0.00K 0.00K WaterspoutWaterspouts developed with cool air over the region and a thermal trough lingering over Lake Erie. Waterspouts were locatednortheast of Avon Lake and were visible from the Tower at Cleveland Hopkins Airport.483

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012LAKE ERIELEZ145Vermilion to Avon Point OH17 0655EST0715EST 0 0 0.00K 0.00K WaterspoutCold air moving across the warm waters of Lake Erie caused waterspouts to form.LEZ145-149Avon Point to Willowick OH - Conneaut OH to Ripley NY - Vermilion to Avon Point OH20 0936EST1038EST 0 0 0.00K 0.00K WaterspoutA cold front moved across Lake Erie on August 20th causing showers and thunderstorms to develop. A few waterspouts werereported.VIRGIN ISLANDSVIZ001St. Thomas/St. John and Adjacent Islands23 2215AST2359AST 0 0 0.00K 0.00K Tropical StormTropical Storm Isaac tracked south of the area leaving hazardous sea across the Caribbean waters. The outer bands of Isaac leftrainfall accumulations of 2 to 4 inches. Strong gusty winds were also reported with Isaac.PACIFICGuam County1 ESE Agana HeightsBarrigadaGuam County1 ESE Agana HeightsBarrigada07 1700GST2200GST 0 0 10.00K 0.00K Heavy Rain07 1700GST2200GST 0 0 10.00K 0.00K Heavy RainHeavy thunderstorms developed over central and northern Guam the evening of Tuesday 7 August, dropping up to 5 inches ofrain and producing widespread flooding. Rainfall reports included 4.73 inches at Guam International Airport and 4.82 inches atSinajana. About 30 homes sustained damage from the flooding, amounting to an estimated $10,000 in damage.PUERTO RICOPonce2 E Ponce 04 1745AST2045AST 0 0 0.00K 0.00K Heavy RainA mudslide was reported on road 139 in front of Wito Morales park.Ponce3 S Ponce 04 1750AST2045AST 0 0 0.00K 0.00K FloodUrban flooding reported on road PR-2 and Las Americas avenue.Ponce3 SSE Ponce 04 1815AST2045AST 0 0 0.00K 0.00K Heavy RainA mudslide was reported at Punta Diamante sector affecting several houses.484

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PUERTO RICOPonce3 SSW Ponce 04 1935AST2045AST 0 0 0.00K 0.00K Flash FloodTwo stranded vehicles, with people inside, on road PR-123 due to flood waters from a small stream that went out of its banksand flooded the road.Ponce4 SSW Ponce 04 2000AST2045AST 0 0 0.00K 0.00K Heavy RainHeavy Rain caused a mudslide on road PR-2 right next to Las Cucharas sector. One person inside a vehicle was reported to bestranded.Tropical Storm Ernesto tracked south of Puerto Rico and .S. Virgin Islands on August 3rd and 4th and left periods of showersand thunderstorms mainly over the southern slopes of the island.PRZ003PRZ001-004-010Southeast23 1215AST 0 0 0.00K 0.00K Coastal FloodEastern Interior - Mayaguez and Vicinity - North Central - San Juan and Vicinity23 1515AST2300AST 0 0 0.00K 0.00K Tropical StormPRZ003Southeast23 1714AST 0 0 0.00K 0.00K Coastal FloodPenuelasPenuelas 24 0901AST1145AST 0 0 0.00K 0.00K Flash FloodRoad 385 was reported flooded due to heavy rainfall.Sabana Grande1 S Sabana Grande 24 1000AST1145AST 0 0 0.00K 0.00K Flash FloodRoad PR-368 that connects Yauco and Sabana Grande was reported flooded due to Rio Loco out of its banks.Guayanilla1 SW Guayanilla 24 1100AST1145AST 0 0 0.00K 0.00K Flash FloodLa Playa sector was reported flooded due to heavy rainfall and Rio Guayanilla out of its banks.Juana Diaz4 WSW Juana Diaz 24 1100AST1145AST 0 0 0.00K 0.00K Flash FloodJacaguas river was reported out of its banks covering local road.Ponce5 NE Ponce 24 1100AST1145AST 0 0 0.00K 0.00K Flash FloodRoad PR-511 impassable due to collapse of bridge in Jurutungo de Real Anon sector.Guayanilla2 N Guayanilla 24 1100AST 0 0 0.00K 0.00K Heavy RainMudslide was reported in Jagua Pasto sector at road 378 in the municipality of Guayanilla.485

TimeLocal/Location Date StandardPathLength(Miles)PathWidth(Yards)Number ofPersonsKilled InjuredEstimatedDamageProperty CropsCharacter of StormAugust 2012PUERTO RICOMaunaboMaunabo 24 1248AST1345AST 0 0 0.00K 0.00K Flash FloodRio Maunabo over Barrio Tumbao bridge at road PR-759 was reported out of its banks.PRZ009Western Interior24 1341AST2300AST 0 0 0.00K 0.00K Tropical StormPatillas2 WNW Patillas 24 1345AST1545AST 0 0 1.00K 0.00K Flash FloodRiver was report out of its banks at road PR-184 at Barrio Jagual.San Lorenzo2 NNE San Lorenzo 24 1345AST1545AST 0 0 0.00K 0.00K Flash FloodRio Grande de Loiza was reported out of its banks in La Marina sector, near road PR-183 in San Lorenzo.Cayey5 NNE Cayey 24 1357AST1415AST 0 0 1.00K 0.00K FloodRiver in sector Beatriz in Cayey was reported out of its banks.UtuadoUtuado 24 1452AST1539AST 0 0 1.00K 0.00K Heavy RainMudslide making road PR 123 impassable from Utuado towards Adjuntas.Tropical Storm Isaac tracked south of the area leaving hazardous sea across the Caribbean waters. The outer bands of Isaac leftrainfall accumulations of 2 to 4 inches island-wide with isolated amounts between 6 and 8 inches across sectors of eastern andsouthern Puerto Rico during a four day period. Strong gusty winds were also reported with Isaac.486

Reference Notes:Storm Data DisclosureStorm Data is an official publication of the National Oceanic and Atmospheric Administration (NOAA) whichdocuments the occurrence of storms and other significant weather phenomena having sufficient intensity to cause lossof life, injuries, significant property damage, and/or disruption to commerce. In addition, it is a partial record of othersignificant meteorological events, such as record maximum or minimum temperatures or precipitation that occurs inconnection with another event.Some of the information appearing in Storm Data may have been provided by or gathered from sources outside theNational Weather Service (NWS), such as the media, law enforcement and/or other government agencies, privatecompanies, individuals, etc. An effort is made to use the best available information, but because of time and resourceconstraints, information from these sources may be unverified by the NWS. Therefore, when using information fromStorm Data, customers should be cautious as the NWS does not guarantee the accuracy or validity of the information.Further, when it is apparent information appearing in Storm Data originated from a source outside the NationalWeather Service (frequently credit is provided), Storm Data customers requiring additional information should contactthat source directly. In most cases, NWS employees will not have the knowledge to respond to such requests. Incases of legal proceedings, under Department of Commerce regulations and/or rules of the court, NWS employees arenot legally obligated to provide written or verbal testimony.Fatality Codes: For events that include a fatality, there is a code containing the gender, age and fatality location atthe end of the event narrative.1 st -letter: Gender (M/F) / 2 nd -numbers: Age / 3 rd -letters: Fatality location (see table below)Example: M51IW – Male, 51 years of age, fatality occurred In Water.Fatality Location Abbreviations:BF Ball Field MH Mobile HomeBO Boating OT OtherBU Business OU Outside/Open AreasCA Camping PH Permanent HomeEQ Heavy Equipment/Construction SC SchoolGF Golfing TE TelephoneIW In Water UT Under TreeLS Long Span Roof VE VehicleList of Acronyms:NWS - National Weather ServiceNOAA - National Oceanic and Atmospheric AdministrationWCM - Warning Coordination Meteorologist – The meteorologist at each NWS Office responsible for…………………reporting severe weather eventsLST - Local Standard Time Storm Data attempts to always use “Standard Time”AST - Atlantic Standard TimeEST/EDT - Eastern Standard Time / Eastern Daylight TimeCST/CDT - Central Standard Time / Central Daylight TimeMST/MDT - Mountain Standard Time / Mountain Daylight Time……………………………………………………………………………………………………………………………………………………………………………………….._487…………………………………………………

PST/PDTAKSHST- Pacific Standard Time / Pacific Daylight Time- Alaska Standard Time- Hawaii Standard TimeOther Notes:An “Episode” is an entire storm system and can contain many different types of events.An “Event” is an individual type of storm event.When listing wind speed values under “Character of Storm”, i.e. High Wind (G81): The G indicates a “Gust” which isa peak 5-second averaged wind speed in Knots (kts). 1 kt. = 1.152 mph. This number can be either E (estimated) bydamage caused, or M (measured) by known calibrated anemometers. Examples: (M61) = measured 61 knots; (E75) =estimated at 75 knots.All wind speeds listed are estimated by NWS personnel by the amount and type of damage unless otherwise notedwith an “M” which represents an actual wind speed as measured by official NWS approved anemometer.When listing hail size under “Character of Storm”, ex. Hail (2.25), the hail size is given in inches and hundredths ofinches.When listing property and crop damage, the figures indicated are the best guess made by the NWS from the availablesources of information at the time of the printing.The fatalities, injuries, and damage amounts appearing in tropical cyclone events are attributed only to wind damageexperienced in the coastal counties/parishes listed. Other tropical cyclone related events such as tornadoes andflooding are listed within their separate event types.488

The Saffir-Simpson ScaleCategory One Hurricane:Winds 74-95 mph (64-82 kts or 119-153 kph). Storm surge generally 4-5 ft above normal. No real damage tobuilding structures. Damage primarily to unanchored mobile homes, shrubbery, and trees. Some damage to poorlyconstructed signs. Also, some coastal road flooding and minor pier damage.Category Two Hurricane:Winds 96-110 mph (83-95 kts or 154-177 kph). Storm surge generally 6-8 feet above normal. Some roofing material,door, and window damage of buildings. Considerable damage to shrubbery and trees with some trees blown down.Considerable damage to mobile homes, poorly constructed signs, and piers. Coastal and low-lying escape routes flood2-4 hours before arrival of the hurricane center. Small craft in unprotected anchorages break moorings.Category Three Hurricane:Winds 111-130 mph (96-113 kts or 178-209 kph). Storm surge generally 9-12 ft above normal. Some structuraldamage to small residences and utility buildings with a minor amount of curtainwall failures. Damage to shrubberyand trees with foliage blown off trees and large trees blown down. Mobile homes and poorly constructed signs aredestroyed. Low-lying escape routes are cut by rising water 3-5 hours before arrival of the hurricane center. Floodingnear the coast destroys smaller structures with larger structures damaged by battering of floating debris. Terraincontinuously lower than 5 ft above mean sea level may be flooded inland 8 miles (13 km) or more. Evacuation oflow-lying residences with several blocks of the shoreline may be required.Category Four Hurricane:Winds 131-155 mph (114-135 kts or 210-249 kph). Storm surge generally 13-18 ft above normal. More extensivecurtainwall failures with some complete roof structure failures on small residences. Shrubs, trees, and all signs areblown down. Complete destruction of mobile homes. Extensive damage to doors and windows. Low-lying escaperoutes may be cut by rising water 3-5 hours before arrival of the hurricane center. Major damage to lower floors ofstructures near the shore. Terrain lower than 10 ft above sea level may be flooded requiring massive evacuation ofresidential areas as far inland as 6 miles (10 km).Category Five Hurricane:Winds greater than 155 mph (135 kts or 249 kph). Storm surge generally greater than 18 ft above normal. Completeroof failure on many residences and industrial buildings. Some complete building failures with small utility buildingsblown over or away. All shrubs, trees, and signs blown down. Complete destruction of mobile homes. Severe andextensive window and door damage. Low-lying escape routes are cut by rising water 3-5 hours before arrival of thehurricane center. Major damage to lower floors of all structures located less than 15 ft above sea level and within 500yards of the shoreline. Massive evacuation of residential areas on low ground within 5-10 miles (8-16 km) of theshoreline may be required.489

EF-Scale Intensity Wind Speed(mph)The Enhanced Fujita ScaleTypical Damage (Suggested)EF0 Gale Tornado 40 - 72 Tree branches broken, chimneys damaged, shallow-rootedtrees pushed over; sign boards damaged or destroyed,outbuildings and sheds destroyed.EF1 Moderate 73 - 112 Roof surfaces peeled off, mobile homes pushed offfoundations or overturned, moving autos pushed off theroads, garages may be destroyed.EF2 Significant 113 - 157 Roofs blown off frame houses; mobile homes demolishedand/or destroyed, train boxcars pushed over; large treessnapped or uprooted; airborne debris can cause damage.EF3 Severe 158 - 206 Roofs and walls torn off well constructed houses; trainsoverturned; large trees uprooted, can knock down entireforest of trees.EF4 Devastating 207 - 260 Well-constructed frame houses leveled; structures with weakfoundations blown off some distance; automobiles thrown,large airborne objects can cause significant damage.EF5 Incredible 261 - 318 Brick, stone and cinder-block buildings destroyed, mostdebris is carried away by tornadic winds, large and heavyobjects can be hurled in excess of 100 meters, treesdebarked, asphalt peeled off of roads, steel reinforcedconcrete structures badly damaged.EF6 Inconceivable 319 - 379 Brick, stone and cinderblock buildings destroyed, mostdebris is carried away by tornadic winds, large and heavyobjects can be hurled in excess of 100 meters, treesdebarked, asphalt peeled off of roads, steel reinforcedconcrete structures badly damaged.Typical EF0 Tornado DamageNote the trees are stripped of leaves, but thetrees remain standing. Only light roofdamage and a few missing shingles.Typical EF1 Tornado DamageNote the uprooted trees and missing shinglesfrom the roof. There is significant roofdamage.

Typical EF2 Tornado DamageThis home is missing it’s entire roof but theexterior walls remain intact. Some of thestronger hardwood trees remain standing.Typical EF3 Tornado DamageThis home is missing the entire roof as well assome of the exterior walls. Trees are blownover or snapped near the base andoutbuildings are destroyed.Typical EF4 Tornado DamageThis home is almost completely obliterated,with no walls standing. The debris from thehome is where the house once stood.Typical EF5 Tornado DamageThese homes have been completely removedfrom their original locations. The debrisfield has been scattered some distance fromtheir foundation.Typical EF5 Tornado DamageThe asphalt surface has been peeled off ofthis road.(All photographs courtesy of Brian Smith, Meteorologist,National Weather Service, Valley NE.)

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