SIGMET (SIGMET)
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Definition
Significant Meteorological Information — a warning of severe weather hazardous to all aircraft
Related Terms
Notice to Air Missions (NOTAM)
A notice filed with aviation authorities to alert pilots of hazards or changes along a flight route
Terminal Aerodrome Forecast (TAF)
A weather forecast for the area around an airport, typically covering a 24-30 hour period
Thunderstorm (Cumulonimbus) (CB)
A convective weather system producing lightning, turbulence, hail, and heavy precipitation
Volcanic Ash Cloud
Fine rock particles from volcanic eruptions that can damage jet engines and aircraft systems