Training Guide in Surface Weather Observations - Multiple Choices

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19. Which of the following wind parameters is not included in the body of the METAR/SPECI wind element? a. direction b. speed c. squalls d. variable 20. A strong wind suddenly increases from 270° at 15 knots to 32 knots with gusts to 44 knots and persists for 3 minutes before subsiding. This is reported as: a. 27032G44KT b. 27044KT SQ (in present weather) c. 27015G44KT SQ (in present weather) d. 27032G44KT SQ (in present weather) 21. Calm wind is coded in the body of the report as: a. 00000KT b. VRB00KT c. 0000KT d. blank (no entry for wind) 22. The wind direction is from 240° at 9 knots and the direction is varying from 210° to 260°. How would this be formatted for transmission? a. 24009KT b. 24009KT 210V260 c. 24009KT 210V260KT d. VRB09KT 23. If a wind shift is accompanied by a cold frontal passage that began at 30 minutes after the hour, the remark would be coded as: a. FROPA 30 b. COLD FROPA 30 c. FROPA WSHFT 30 d. WSHFT 30 FROPA 24. The essential difference between gusts and squalls is: a. the intensity of precipitation with which they are associated b. the variation between peaks and lulls c. the duration of the increased wind speed d. their peak speed 2-8
25. A variable wind direction and a speed of 4 knots would be coded as: a. 00004KT b. 99904KT c. VRB04KT d. /04KT 26. Which of the following is a good method for estimating low surface wind speed? a. movement of very low clouds b. pilot reports c. a non-moving wind vane d. none of the above 27. The wind is from 360° at 125 knots. What would be the correct entry in Column 4 (Speed) of MF1M-10? a. 25 b. 125 c. 36025 d. 36125 28. The station anemometer is not in operation. However, the observer estimates that the wind speed is 10 knots. The wind speed will be reported as: a. M b. /M c. E10 d. 10 2-9
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 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 68 and 69: Example 5-2. One Layer with Single
Page 70 and 71: Figure 5-4. Advancing Layer (sky co
Page 72 and 73: 5-8
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Figure 5-10. Surface-base Layer Sur
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Example 5-5. Four Layers. The follo
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Example 5-8. One Layer. Example 5-9
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1 CU - Cumulus 1 Example 5-12. Mult
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layer aloft will be considered as m
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5. When a balloon is used for deter
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OUTLINE DETERMINING SKY COVER AMOUN
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Select the correct answer. REVIEW Q
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20. If a layer aloft has less than
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40. Match the following reportable
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6.1 Temperature and Dew Point - T
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6. Obtain the difference between th
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Other examples of determining wet-b
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The conversion from ice to water ca
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a. Read right end of index in minim
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Figure 6-8. Reading a Thermometer t
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TIME G LST G UTC (2) TEMP. (°C) DE
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Method II: Centrifugal Force A shor
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INSTRUCTIONS: Select the best answe
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16. Under what conditions is the de
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6-21 +130 129 128 127 126 +125 124
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6-23
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The altimeter setting shall be repo
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7-4
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7. Sea-level pressure is an adjustm
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2. Additive Data [NA SAWRS] 3- and
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8.2.2.2 24-Hour Precipitation Amoun
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When finished, put the emptied meas
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8.3.3.1 Depth of New Snow (Snowfall
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8-10
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10. A thunderstorm is overhead, mov
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26. A 6-hourly maximum temperature
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CHAPTER 9 REVIEW EXERCISES OBSERVIN
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Exercise #3 Lower layer has ____/8t
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Exercise #5 Surface based layer has
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Exercise #7 Total sky coverage is _
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Exercise #9 Lower layer has ____/8t
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Exercise #11 Total sky coverage is
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QUALITY CONTROL EXERCISE Each of th
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21. METAR KKKK 282045Z E29006KT 7SM
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42. METAR KFFF 302250Z 03008KT 40SM
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16. a. METAR 17. b. second 18. d. f
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11. - a change in wind direction of
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...unfocused lights of moderate int
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22. b precipitation occurring not a
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52. b. decreasing dominance. 53. b.
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24. 8 VV 25. 8 OVC 26. 7 BKN 27. as
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A-14
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A-16
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A-18
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18. 1200 UTC or other time modified
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9. Lower layer has 1 /8ths coverage
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16. METAR KFFF 312148Z 36005KT 1 1/
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43. METAR KGGG 052145Z 05009KT 4SM
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WET BULB TEMPERATURES 31 32 33 34 3
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WS Form B-11 (12-96) Pres. by WSOH
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C-3
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. If an altimeter setting indicator
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Training Guide in Surface Weather Observations - Multiple Choices

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