FAA Weather Reports

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Quiz by latesleeper
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Last updated: November 9, 2019
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First submittedNovember 9, 2019
Times taken3
Average score15.8%
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Answer
the only source of directly observed weather information
Pilot Weather Report (PIREP)
Convective Sigment (WST) reports:
Severe thunderstorms
with these characteristics
surface winds ≥ 50 kts
 
surface hail ≥ 3/4" diameter
 
tornadoes
Sigmet (WS) Weather not produced by thunderstorms
severe icing
 
severe, extreme, or clear air turbulence
 
Dust or sand storm lowering surface visibility ≤ 3 SM
 
volcanic ash
Airmet Sierra
IFR conditions
 
extensive mountain obscuration
Airmet Tango
moderate turbulence
 
sustained surface winds ≥ 30 kts
 
nonconvective low-level wind shear
Airmet Zulu
moderate icing
 
freezing level heights
Airport Weather Stations
 
Towered field reports 55 minutes past the hour
ATIS (Automated Terminal Information Service)
Reports by the hour
ASOS (Automated Surface Observing System)
Reports by the minute
AWOS (Automated Weather Observing System)
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