A107 - Weather Reports
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
ANSWER: 180 degrees true at 4 knots
What is the valid period for the TAF for KMEM? 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
ANSWER: 1800Z to 1800Z
It is currently 4:30 p.m. The next routine METAR report will be available in _____ minutes.
ANSWER: 20-30
Between 1000Z and 1200Z the visibility at KMEM is forecast to be? 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=
ANSWER: 3 statute miles
The PROB modifier will be used when there is a _____ percent chance weather phenomena will occur
ANSWER: 30 to 49
What is the forecast wind for KMEM at 0000Z? 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=
ANSWER: 330 degrees at 15 KT
Weather reported as being in the vicinity (VC) is between ____ and ____ statute miles from the reporting station
ANSWER: 5 and 10
When the phrase "light and variable" is used in reference to a winds-aloft forecast, the coded group and wind-speed is
ANSWER: 9900 and less than 5 knots
Where does wind shear occur?
ANSWER: At all altitudes, in all directions
A METAR provides ________.
ANSWER: Current weather for an airport within a 5 sm radius
Which modifier would signify a rapid and lasting change in conditions?
ANSWER: FM
10. 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?
ANSWER: Fog or low clouds
During the time period from 0600Z to 0800Z, what visibility is forecast for KOKC? 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=
ANSWER: Greater than 6 statute miles
Winds reported as variable (VRB) vary
ANSWER: In direction and are 6 knots or less
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
ANSWER: KPUB, KDEN, AND KABQ
The type of visibility reported in METARs is the:
ANSWER: Prevailing Visibility: Greatest distance that can be seen throughout at least half of the sky
The two types of METAR reports are
ANSWER: Routine and Special
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
ANSWER: Sky 700 feet overcast, visibility 1-1/2SM, rain
What is meant by the term "dewpoint"?
ANSWER: The temperature to which air must be cooled to become saturated
Reported winds in a METAR are in reference to
ANSWER: True North
In the following TAF, what does "VV" signify? KGEG 241539Z 2416/2512 05003KT 1/4SM FZFG VV001
ANSWER: Vertical Visibility of 100 feet
In the following example, what does the "WS" code denote? WS015/27050KT
ANSWER: Wind shear can be expected up to 1,500 feet AGL
The amount of water vapor which air can hold depends on the
ANSWER: air temperature
21. The only cloud type forecast in TAF reports is
ANSWER: cumulonimbus
For aviation purposes, ceiling is defined as the height above the Earth's surface of the
ANSWER: lowest broken or overcast layer or vertical visibility into an obscuration
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=
ANSWER: overcast at 2,000 feet during the forecast period between 2200Z and 2400Z
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
ANSWER: rain began at 1835Z
Which conditions result in the formation of frost?
ANSWER: the temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint below freezing
What is meant by the term 'dewpoint'?
ANSWER: the temperature to which air must be cooled to become saturated
