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|Tag(s)||Weather Risk Management|
SIGMET information is information issued by a meteorological watch office concerning the occurrence or expected occurrence of specified en-route weather phenomena which may affect the safety of aircraft operations. (ICAO Annex 3: Meteorology)
A SIGMET gives a concise description of the phenomena in abbreviated plain language.
The following are examples of weather phenomena that may be described in a SIGMET:
- Cyclones (Tropical Revolving Storms)
- Severe turbulence
- Severe icing
- Severe Mountain Waves
- Dust or Sand Storms
- Volcanic Ash
- ICAO Annex 3 Chapter 7
- Doc 8896 - Manual of Aeronautical Meteorological Practice, 9th edition, 2011
- AC 00-45H - Aviation Weather Services, FAA, 14 Nov 2016.