Training Guide in Surface Weather Observations - Multiple Choices

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40. Match the following reportable increments (in feet) with the range of height values of the sky cover: 100 ft a. >5,000 but 10,000 ft 500 ft b. 5,000 ft 1000 ft c. >10,000 ft 41. When the height of a layer falls halfway between two reportable values, the value is reported. a. lower b. upper c. exact 42. Which of the following is never reported as a ceiling? a. a broken layer of clouds b. a layer over a layer of fog that hides more than half the sky c. a layer of fog hiding 7/8 of the sky d. the vertical visibility into precipitation that hides the entire sky 43. When the ceiling height is variable, the height in column 10 (Sky Condition) is the of all observed heights. a. minimum b. maximum c. average d. sum 44. A layer of smoke is observed at 900 feet obscuring less than 1/8 sky cover. What is reported in column 9 (Present Weather), column 10 (Sky Condition), and column 14 Remarks)? a. col. 9: FU; col. 10: FEW000 FEW009; col. 14: FU FEW000 b. col. 9: nothing; col. 10: FEW009; col. 14: FU FEW009 c. col. 9: nothing; col. 10: FEW000; col. 14: FU FEW000 d. col. 9: FU; col. 10: FEW009; col. 14: nothing 45. The vertical visibility into a snow shower that hides the whole sky is estimated to be 300 feet. What would be the correct entry in column 10 (Sky Condition)? a. OVC003 b. VV030 c. VV003 d. OVC030 5-28
46. If an observing station is so located that an unobstructed view of the sky cannot be obtained because of manmade structures, then for purposes of determining layer amount, the whole sky will be considered as: a. the whole sky including the obstructed portion b. the portion of the sky visible to the observer c. a mean area considered the percentage of sky hidden d. a mean area considered the percentage of sky visible to the observer 47. The sky is covered by a combination of 4/8 mist (obscuring), 2/8 clouds at a measured 500 feet, and 2/8 clouds at an estimated 4,000 feet. The correct sky condition entries on MF1M-10C are: a. SCT000 BKN005 OVC040 with the remark, BR SCT000 b. SCT000 BKN005 OVC040 with no remarks c. SCT000 BKN005 BKN040 with the remark, BR SCT000 d. SCT001 BKN005 OVC040 with the remark, BR SCT001 48. A ceiling is measured at 4,000 feet overcast, but it is variable from 3,500 to 4,500 feet. This is coded as: a. OVC040 and, in remarks, CIG 035V045 b. OVC040 c. OVC040 and, in remarks, CIG VRB 035V045 d. OVC040V 49. The height of an overcast layer of stratus clouds cannot be determined with a: a. pilot report b. convective cloud height diagram c. ceilometer d. balloon 50. Which of the following is not considered a ceiling? a. a broken layer of clouds b. a layer of mist hiding 6/8 of the sky c. the vertical visibility into fog that hides the entire sky d. a layer of clouds above a layer of fog that hides more than half the sky 5-29
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Training Guide in Surface Weather O
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PREFACE METAR/SPECI is the internat
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CHAPTER 7 - PRESSURE ..............
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1.2 Content and Format of the Manua
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1.6 Report Modifier - COR An observ
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1-6
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12. A METAR observation contains se
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25. At no time shall an observation
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2.1.4 Estimated Winds Though winds
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2-4
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Code the following wind situations
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19. Which of the following wind par
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3.1 Visibility 1 CHAPTER 3 VISIBILI
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3.2.3 Surface and Tower Visibility
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SUR- FACE VISIBILITY PRESENT WEATHE
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3.3 Visibility Chart As an aid for
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OUTLINE DETERMINING VISIBILITY From
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REVIEW QUESTIONS Select the best an
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11. 12. At the time of observation,
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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
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 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
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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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