Storm Data and Unusual Weather Phenomena - CIG

ALASKA, SouthernAKZ011-018>019AKZ020AKZ019Storm Data and Unusual Weather PhenomenaTimePath PathNumber ofEstimatedLocal/ Length WidthPersonsDamageLocation DateStandard (Miles) (Yards) Killed Injured Property Crops Character of StormMarch 1998Kuskokwim Delta - Kodiak Island-Eastern Alaska Peninsula - Western Alaska Peninsula04061200AST1800AST0 0High Wind (G54)Southeasterly winds ahead of a moderate frontal system gusted up to 62 mph at Cape Newenham, 44 mph at Port Heiden and 58mph at Cold Bay Wednesday and Thursday. By Friday, the front had slipped east and southeast...extending from the AlaskaPeninsula to 300 miles southeast of Kodiak Island. Local wind gusts of 44 mph were reported just south of the Kenai Peninsula,east southeast of the Barren Island area, early Friday.Aleutian Islands07 0000AST2300AST0 0High Wind (G50)Moderate low pressure over the extreme eastern Aleutians, coupled with moderate high pressure across the western Aleutiansresulted in brisk northwest winds across much of the central Aleutians. Gusts reached 58 mph near Adak.Western Alaska Peninsula12 1200AST0 0High Wind (G45)2300ASTA moderate front, associated with a strong 954mb low in the extreme northcentral Pacific moved across the Alaska Peninsula lateThursday. Easterly wind gusts reached 52 mph in advance of the front.AKZ015>018AKZ015AKZ020AKZ019>020AKZ017>020AKZ011-016-019>021Cook Inlet - Bristol Bay Coastal - Central Gulf Coast - Kodiak Island-Eastern Alaska Peninsula16 0000AST0 0 10KHigh Wind (G58)18 0300ASTBrisk easterly winds preceded a vigorous weather front as it passed northwestward into the mainland of Alaska. Speeds reached 67mph at Portage between 7 and 8 am Tuesday, 64 mph at radio station KMXT in Kodiak which downed several trees and causedslight roof damage, 53 mph at King Salmon between 2 and 3am Tuesday and to 62 mph at Middleton Island between 2 and 3pmTuesday.Cook Inlet18 0000AST0 0High Wind (G49)2200ASTPre-frontal winds created by a moderate to strong pressure gradient between Prince William Sound and northwestern Cook Inletreached gusts to 56 mph. These winds are mainly due to "gap" wind conditions....similar to the Columbia Gorge conditions inOregon. To a lesser extent, "mountain wave" conditions probably contributed to the gusty winds. The gusty winds primarilyaffected east Anchorage (including the Hillside areas) and areas adjacent to Potter Marsh which is at the outlet of Turnagain Arm.Aleutian Islands20 1800AST0 0High Wind (G50)21 2100ASTA moderate front, associated with a strong 972mb low just northeast of the Kamchatka Peninsula, brought strong southerly winds tothe Aleutians. Gusts reached 58 mph at Shemya late Friday and early Saturday just prior to frontal passage.Western Alaska Peninsula - Aleutian Islands23 1200AST0 0 60KHigh Wind (G87)24 2100ASTA rapidly intensifying low moved northeast across the central Aleutians Monday morning, deepening to 956mbs late Monday night.The low then tracked northeast into Bristol Bay early Tuesday, where it began to weaken. By Tuesday night, the low was locatedabout 100 miles east southeast of Bethel and had weakened to 967mbs. Very shortly after this time, winds diminished below 40mph. Initially, strong southeasterly winds preceded the storm...gusting as high as 88 mph at Cold Bay. On the back side of thelow, however, very strong southwesterly winds affected the eastern Aleutians and Alaska Peninsula. Damage at Unalaska includedvehicle and trailer damage, damage to houses caused by wind-born debris, and blown out windows to homes, cars and boats.Roofing was also damaged. Wind gusts in excess of 100 mph were reported in the Dutch Harbor/Unalaska area, where winds arechannelled and greatly influenced by the surrounding mountains. In Cold Bay, structural damage occurred at several housing units.Central Gulf Coast - Kodiak Island-Eastern Alaska Peninsula - Western Alaska Peninsula - Aleutian Islands27 0000AST0 0High Wind (G63)30 1800ASTA strong 969mb low moved across the central Aleutians late Friday and early Saturday...weakening to 984mbs across the extremenortheast corner of Bristol Bay very early Sunday. The low then reformed eastward into the Gulf of Alaska Sunday, finallyweakening to a 1007mb center just west of Cape Spencer in Southeast Alaska late Monday. While strong easterly winds to 50 mphpreceded the storm, much stronger northwesterly winds were reported along the "back" side of the system...reaching speeds of 73mph across the Aleutians and 58 mph across the Alaska Peninsula. Gusts from 55 to near 60 mph were recorded around KodiakIsland with gusts from 40 to 45 mph reported in parts of Prince William Sound on Sunday.Kuskokwim Delta - Bristol Bay Coastal - Western Alaska Peninsula - Aleutian Islands - Pribilof Islands29 1800AST0 0High Wind (G58)31 2359AST15 9