Training Guide in Surface Weather Observations - Multiple Choices

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43. METAR KGGG 052145Z 05009KT 4SM TSRA OVC020 20 A2988 TS N MOVG SE The intensity symbol goes before the descriptor TS (TSRA). The temp must be followed by a solidus, even if there is no dew point. The contraction “RMK” must be entered whenever there are remarks. 44. METAR KHHH 222347Z 07004KT 4SM TSRA 40SCT 70BKN 26/20 A3000 RMK LTGICCG TS S MOV SE Incorrect format for reporting sky condition. Amount comes before the height and the height must be three digits. Frequency (type) of lightning is also missing. 45. METAR KIII 021250Z 10010KT 6SM TS RW FEW010 27/23 A3010 Precipitation must be appended to the TS descriptor, e.g., TSRA. RW is from the airways code. TS implies showers in the METAR code. 46. METAR KJJJ 071050Z 00000KT 7SM MIBR SCT250 28/26 A2985 There is no such thing as MIBR. MI can only be used with FG. 47. METAR KKKK 311650Z VRB006KT 35SM SCT060 BKN200 22/19 A3042 RMK VIRGA NE- SE THIN BKN SLPNA T02170115 There are too many characters in the wind group (VRB06KT). Dew point is incorrect or the “T” group is incorrect. Thin broken is not METAR. No such contraction as SLPNA (use SLPNO). 48. METAR KLLL 172050Z 07004KT 20SM OVC050 24/06 A3025 RMK VCTSRA N-E MOV SE There is no present weather group VCTSRA. Any precipitation observed within 10SM of the station shall be reported in the body as VCSH, and any thunderstorm should be reported in the body of the report. TS VCSH should have been reported for present weather. A-26
WET BULB TEMPERATURES 21 22 23 24 25 26 27 28 29 30 APPENDIX B - DEW POINT TABLE 30 31 12 1 +6 11 16 20 24 27 30 31 32 33 34 35 31 23 8 +1 8 13 18 22 25 28 31 32 48 16 4 +4 10 15 19 23 26 29 32 33 31 12 1 +6 12 17 21 24 28 30 33 34 22 7 +2 9 14 18 22 26 29 32 34 35 47 16 4 +5 11 16 20 24 27 30 33 35 36 37 38 39 40 DRY BULB TEMPERATURES 36 30 11 0 +7 13 18 22 25 28 31 34 36 37 21 6 +3 9 15 19 23 26 29 32 35 37 38 42 14 2 +6 12 17 21 25 28 31 33 36 38 39 27 9 +1 8 14 19 22 26 29 32 34 37 39 40 18 4 +4 11 16 20 24 27 30 33 35 38 40 41 42 43 44 45 41 36 12 1 +7 13 18 22 25 29 31 34 37 39 41 42 23 7 +3 10 15 20 23 27 30 33 35 38 40 42 43 49 15 2 +6 12 17 21 25 28 31 34 36 39 41 43 44 29 9 +2 9 14 19 23 26 29 32 35 37 40 42 44 45 18 4 +5 11 16 21 24 28 31 34 36 39 41 43 45 HOW TO USE THE TABLE 1 Locate at the top of the column (shaded area) the reading corresponding to the wet bulb temperature. Locate at the left side of the table (shaded area) the reading corresponding to the dry bulb temperature. Follow down the column under the wet bulb temperature, and across from the dry bulb temperature; at the intersection of these two columns will be found the dew point (°F). 1 This is not a complete table and is not intended for use with a station’s observation program. This table is valid only for the exercises contained in this training guide. B-1
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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,
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38. Visibility of 2 3/8 miles is re
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When more than one type of present
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4.1.2 Descriptors Descriptors are q
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Obscurations that stand alone, i.e.
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Question: What does an observer do
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Footnotes for Weather Phenomena Mat
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9. +FZRA a. Severe freezing rain b.
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23. Volcanic ash is reported: a. wh
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37. Match the following present wea
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46. Which of the following precipit
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59. Steady rain is observed 4 miles
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72. Rain showers of an unknown inte
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5.2 Sky Cover Figure 5-2. Weather O
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Example 5-2. One Layer with Single
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Figure 5-4. Advancing Layer (sky co
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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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Page 144 and 145: Exercise #7 Total sky coverage is _
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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
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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
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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 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
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