Training Guide in Surface Weather Observations - Multiple Choices

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23. Weather conditions being equal, why should you allow more time for taking observations at night than during the day? 24. Where is the RVR group reported in a METAR/SPECI report? a. after the wind b. after the visibility c. in remarks d. with weather and obscuration 25. Which of the following are true of RVR reports? _____ the prevailing visibility is 1 statute mile or less _____ the RVR is 8,000 feet or less _____ the RVR is reported in the body of a METAR/SPECI report _____ the RVR is reported even if your station does not have the RVR equipment Code the following RVR values for a METAR report. 26. The RVR is indicating a value of 2400 feet for runway 22. 27. The RVR is indicating a value of 600 feet for runway 02 left. 28. The RVR is indicating a value of more than 6000 feet for runway 02 left. The visibility is one and one-quarter miles. 29. Your station does not have runway visual range equipment and your visibility is down to one quarter mile. How is the RVR coded in the report? 30. When taking a visibility observation, you should take the observation from: a. one fixed location. b. as many locations as practicable. c. the main point of observation. d. two locations and report the average visibility. 31. The tower visibility is entered in column 7b and transmitted in the body of the observation when visibilities are: a. SFC VIS = 3, TWR VIS = 3 b. SFC VIS = 3, TWR VIS = 2 c. SFC VIS = 3, TWR VIS = 5 d. SFC VIS = 2, TWR VIS = 4 3-15
32. The RVR for runway 06 left is not functioning properly for the 10-minute readout, but the 1-minute display in the tower is reporting 1000 feet. What should be recorded in column 8 (Runway Visual Range) and/or column 14 (Remarks)? a. column 8: R06L/1000; column 14: nothing required b. column 8: nothing required; column 14: RVRNO c. column 8: R06L/VR1000FT; column 14: RVRNO d. column 8: nothing required; column 14: nothing required 33. Runway Visual Range (RVR) is calculated from: a. visibility b. ambient light level c. runway light intensity d. all of the above. 34. Visibility is reported to the nearest mile when it is observed to be in the range of miles. a. 1 to 3 b. 3 to 15 c. 3 to 25 d. 15 to 25 35. A visibility of 7/16 miles would be reported as: a. 1/4 b. 3/8 c. 7/16 d. 1/2 36. If the following visibility values were observed: N 3, NE 2 1/2, E 1, SE 3/4, S 2, SW 3 1/2, W 4, NW 2 3/4, what would be the prevailing visibility? a. 3 1/2SM b. 3SM c. 2 3/4SM d. 2 1/2SM 37. If the prevailing visibility varies rapidly during the observation, the prevailing visibility is reported as: a. the average of the extremes. b. the highest observed values. c. the lowest observed values. d. the average of all observed values. 3-16
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 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
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
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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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