Term
What is meant by the term ‘dewpoint’? |
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Definition
| the temperature to which air must be cooled to become saturated |
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Term
When the phrase “light and variable” is used in reference to a winds-aloft forecast, the coded group and wind-speed is |
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Definition
| 9900 and less than 5 knots |
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Term
What is the valid period for the TAF for KMEM?
TAF
KMEM 1217207Z 1218/1318 20012KT 5SM HZ BKN030
FM122200 33015G20KT P6SM BKN015 OVC025
PROB40 1222/1302 3SM SHRA
FM130200 35012KT OVC008
BECMG 1306/1308 02008KT BKN012
BECMG 1310/1312 00000KT 3SM BR SKC
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Definition
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Term
| Reported winds in a METAR are in reference to |
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Definition
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Term
The remarks section for KGXY has RAB35 listed. This entry means:
METAR KABQ 121852Z 25004KT 6SM BR SCT007 SCT250 16/15 A2991 SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35 |
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Definition
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Term
| For aviation purposes, ceiling is defined as the height above the Earth’s surface of the |
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Definition
| lowest broken or overcast layer or vertical visibility into an obscuration |
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Term
Between 1000Z and 1200Z the visibility at KMEM is forecast to be?
TAF
KMEM 121720Z 1218/1318 20012KT 5SM HZ BKN030
PROB40 1220/1222 1SM TSRA OVC008CB
FM122200 33015G20KT P6SM BKN015 OVC025
PROB40 1222/1302 3SM SHRA
FM130200 35012KT OVC008
PROB40 1302/1305 2SM –RASN
BECMG 1306/1308 02008KT BKN012
BECMG 1310/1312 00000KT 3SM BR SKC
TEMPO 1312/1314 1/2SM FG
FM131600 VRB06KT P6SM SKC= |
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Definition
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Term
What is the forecast wind for KMEM at 0000Z?
TAF
KMEM 121720Z 1218/1318 20012KT 5SM HZ BKN030
PROB40 1220/1222 1 SM TSRA OVC008CB
FM122200 33015G20KT P6SM BKN015 OVC025
PROB40 1222/1302 3SM SHRA
FM130200 35012KT OVC008
PROB40 1302/1305 2SM –RASN
BECMG 1306/1308 02008KT BKN012
BECMG 1310/1312 00000KT 3SM BR SKC
TEMPO 1312/1314 1/2SM FG
FM131600 VRB06KT P6SM SKC= |
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Definition
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Term
During the time period from 0600Z to 0800Z, what visibility is forecast for KOKC?
TAF
KOKC 051130Z 0512/0612 14008KT 5SM BR BKN030
TEMPO 0513/0516 1 1/2SM BR
FM051600 18010KT P6SM SKC
BECMG 0522/0524 20013G20KT 4SM SHRA OVC020
PROB40 0600/0606 2SM TSRA OVC008CB
BECMG 0606/0608 21015KT P6SM SCT040= |
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Definition
Greater than 6 statute miles |
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Term
| If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees F. what type of weather is most likely to develop? |
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Definition
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Term
| A METAR provides ________. |
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Definition
| Current weather for an airport within a 5 sm radius |
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Term
| Winds reported as variable (VRB) vary |
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Definition
| In direction and are 6 knots or less |
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Term
Where does wind shear occur? |
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Definition
| At all altitudes, in all directions |
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Term
| Weather reported as being in the vicinity (VC) is between ____ and ____ statute miles from the reporting station |
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Definition
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Term
| What is meant by the term “dewpoint”? |
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Definition
| The temperature to which air must be cooled to become saturated |
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Term
The wind direction and velocity at Colorado Springs is:
METAR KPUB 121845Z 11012G18KT 15SM SKC 25/17 A3000
SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35
SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006 |
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Definition
| 180 degrees true at 4 knots |
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Term
What are the current conditions depicted for Greeley Weld County Airport (KGXY)?
SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35
SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006 |
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Definition
| Sky 700 feet overcast, visibility 1-1/2SM, rain |
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Term
Which of the reporting stations have VFR weather?
METAR KPUB 121845Z 11012G18KT 15SM SKC 25/17 A3000
METAR KDEN 121854Z 13004KT 30SM SCT150 17/6 A3015
METAR KABQ 121852Z 25004KT 6SM BR SCT007 SCT250 16/15 A2991
SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35
SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006 |
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Definition
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Term
| The two types of METAR reports are |
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Definition
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Term
| It is currently 4:30 p.m. The next routine METAR report will be available in _____ minutes. |
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Definition
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Term
| The only cloud type forecast in TAF reports is |
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Definition
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Term
The PROB modifier will be used when there is a _____ percent chance weather phenomena will occur |
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Definition
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Term
Which modifier would signify a rapid and lasting change in conditions? |
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Definition
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Term
| The amount of water vapor which air can hold depends on the |
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Definition
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Term
In the TAF from KOKC, the clear sky becomes
TAF
KOKC 051130Z 0512/0612 14008KT 5SM BR BKN030
TEMPO 0513/0516 1 1/2SM BR
FM051600 18010KT P6SM SKC
BECMG 0522/0524 20013G20KT 4SM SHRA OVC020
PROB40 0500/0606 2SM TSRA OVC008CB
BECMG 0606/0608 21015KT P6SM SCT040=
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Definition
overcast at 2,000 feet during the forecast period between 2200Z and 2400Z |
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Term
In the following example, what does the “WS” code denote?
WS015/27050KT |
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Definition
Wind shear can be expected up to 1,500 feet AGL |
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Term
In the following TAF, what does “VV” signify?
KGEG 241539Z 2416/2512 05003KT 1/4SM FZFG VV001 |
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Definition
| Vertical Visibility of 100 feet |
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Term
The type of visibility reported in METARs is the: |
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Definition
Prevailing Visibility: Greatest distance that can be seen throughout at least half of the sky |
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Term
| Which conditions result in the formation of frost? |
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Definition
| the temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint below freezing |
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