Training Guide in Surface Weather Observations - Multiple Choices

More documents

Recommendations

Info

Example 5-2. One Layer with Single Cloud Base. If the layer is on the ground, the sky cover is the eighths of the sky hidden by the phenomenon. That portion of the surfaced-based layer through which the sky can be seen is not considered sky cover. In WSOH, the concept is described under “Obscurations.” An obscuration that hides part of the sky is reported in both the sky condition and remarks. Surface-based obscurations are reported in the sky condition with a height of “000.” A layer height of “000” could also mean the layer reported is 50 feet. To distinguish between a layer aloft and an obscuration, use a remark to describe if the layer reported is really an obscuration. The amount of sky hidden (FEW, SCT, BKN) is prefixed to the height of “000,” e.g., FEW000 (
If there are no layers, the sky condition contraction SKC (meaning sky is clear, zero sky cover) is used. SKC is never used in combination with other contractions, but it can be used in conjunction with a layer below the station level, e.g., FEW/// SKC. When the sky is completely hidden by surface-based phenomena such as fog or precipitation, the height ascribed to the surface-based layer is the Vertical Visibility into the layer. 5.2.1 Sky Cover Evaluation Example 5-4. Sky Completely Hidden by Surface-based Phenomena One of your first problems will be accurately estimating eighths of clouds or obscuring phenomena. Some guidance is provided by means of the Sky Cover Evaluation table. For example, if the leading edge of a layer advancing from the west reaches overhead, the sky is obviously half covered (see Figure 5-4). Angle of Advancing or Receding Layer Edge Eighths of Sky Cover 5-5 Angular Elevation of Layer Surrounding Station 0> to 50 degrees 1 0> to 10 degrees 51 to 68 degrees 2 11 to 17 degrees 69 to 82 degrees 3 18 to 24 degrees 83 to 98 degrees 4 25 to 32 degrees 99 to 112 degrees 5 33 to 41 degrees 113 to 129 degrees 6 42 to 53 degrees 130 to
Page 1 and 2:
Training Guide in Surface Weather O
Page 3:
PREFACE METAR/SPECI is the internat
Page 6 and 7:
CHAPTER 7 - PRESSURE ..............
Page 8 and 9:
1.2 Content and Format of the Manua
Page 10 and 11:
1.6 Report Modifier - COR An observ
Page 12 and 13:
1-6
Page 14 and 15:
12. A METAR observation contains se
Page 16 and 17:
25. At no time shall an observation
Page 18 and 19: 2.1.4 Estimated Winds Though winds
Page 20 and 21: 2-4
Page 22 and 23: Code the following wind situations
Page 24 and 25: 19. Which of the following wind par
Page 26 and 27: 3.1 Visibility 1 CHAPTER 3 VISIBILI
Page 28 and 29: 3.2.3 Surface and Tower Visibility
Page 30 and 31: SUR- FACE VISIBILITY PRESENT WEATHE
Page 32 and 33: 3.3 Visibility Chart As an aid for
Page 34 and 35: OUTLINE DETERMINING VISIBILITY From
Page 36 and 37: REVIEW QUESTIONS Select the best an
Page 38 and 39: 11. 12. At the time of observation,
Page 40 and 41: 23. Weather conditions being equal,
Page 42 and 43: 38. Visibility of 2 3/8 miles is re
Page 44 and 45: When more than one type of present
Page 46 and 47: 4.1.2 Descriptors Descriptors are q
Page 48 and 49: Obscurations that stand alone, i.e.
Page 50 and 51: Question: What does an observer do
Page 52 and 53: Footnotes for Weather Phenomena Mat
Page 54 and 55: 9. +FZRA a. Severe freezing rain b.
Page 56 and 57: 23. Volcanic ash is reported: a. wh
Page 58 and 59: 37. Match the following present wea
Page 60 and 61: 46. Which of the following precipit
Page 62 and 63: 59. Steady rain is observed 4 miles
Page 64 and 65: 72. Rain showers of an unknown inte
Page 66 and 67: 5.2 Sky Cover Figure 5-2. Weather O
Page 70 and 71: Figure 5-4. Advancing Layer (sky co
Page 72 and 73: 5-8
Page 74 and 75: Figure 5-10. Surface-base Layer Sur
Page 76 and 77: Example 5-5. Four Layers. The follo
Page 78 and 79: Example 5-8. One Layer. Example 5-9
Page 80 and 81: 1 CU - Cumulus 1 Example 5-12. Mult
Page 82 and 83: layer aloft will be considered as m
Page 84 and 85: 5. When a balloon is used for deter
Page 86 and 87: OUTLINE DETERMINING SKY COVER AMOUN
Page 88 and 89: Select the correct answer. REVIEW Q
Page 90 and 91: 20. If a layer aloft has less than
Page 92 and 93: 40. Match the following reportable
Page 94 and 95: 6.1 Temperature and Dew Point - T
Page 96 and 97: 6. Obtain the difference between th
Page 98 and 99: Other examples of determining wet-b
Page 100 and 101: The conversion from ice to water ca
Page 102 and 103: a. Read right end of index in minim
Page 104 and 105: Figure 6-8. Reading a Thermometer t
Page 106 and 107: TIME G LST G UTC (2) TEMP. (°C) DE
Page 108 and 109: Method II: Centrifugal Force A shor
Page 110 and 111: INSTRUCTIONS: Select the best answe
Page 112 and 113: 16. Under what conditions is the de
Page 114 and 115: 6-21 +130 129 128 127 126 +125 124
Page 116 and 117: 6-23
Page 118 and 119:
The altimeter setting shall be repo
Page 120 and 121:
7-4
Page 122 and 123:
7. Sea-level pressure is an adjustm
Page 124 and 125:
2. Additive Data [NA SAWRS] 3- and
Page 126 and 127:
8.2.2.2 24-Hour Precipitation Amoun
Page 128 and 129:
When finished, put the emptied meas
Page 130 and 131:
8.3.3.1 Depth of New Snow (Snowfall
Page 132 and 133:
8-10
Page 134 and 135:
10. A thunderstorm is overhead, mov
Page 136 and 137:
26. A 6-hourly maximum temperature
Page 138 and 139:
CHAPTER 9 REVIEW EXERCISES OBSERVIN
Page 140 and 141:
Exercise #3 Lower layer has ____/8t
Page 142 and 143:
Exercise #5 Surface based layer has
Page 144 and 145:
Exercise #7 Total sky coverage is _
Page 146 and 147:
Exercise #9 Lower layer has ____/8t
Page 148 and 149:
Exercise #11 Total sky coverage is
Page 150 and 151:
QUALITY CONTROL EXERCISE Each of th
Page 152 and 153:
21. METAR KKKK 282045Z E29006KT 7SM
Page 154 and 155:
42. METAR KFFF 302250Z 03008KT 40SM
Page 156 and 157:
16. a. METAR 17. b. second 18. d. f
Page 158 and 159:
11. - a change in wind direction of
Page 160 and 161:
...unfocused lights of moderate int
Page 162 and 163:
22. b precipitation occurring not a
Page 164 and 165:
52. b. decreasing dominance. 53. b.
Page 166 and 167:
24. 8 VV 25. 8 OVC 26. 7 BKN 27. as
Page 168 and 169:
A-14
Page 170 and 171:
A-16
Page 172 and 173:
A-18
Page 174 and 175:
18. 1200 UTC or other time modified
Page 176 and 177:
9. Lower layer has 1 /8ths coverage
Page 178 and 179:
16. METAR KFFF 312148Z 36005KT 1 1/
Page 180 and 181:
43. METAR KGGG 052145Z 05009KT 4SM
Page 182 and 183:
WET BULB TEMPERATURES 31 32 33 34 3
Page 184 and 185:
WS Form B-11 (12-96) Pres. by WSOH
Page 186 and 187:
C-3
Page 188:
. If an altimeter setting indicator
show all

Training Guide in Surface Weather Observations - Multiple Choices

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?