variants or less commonly sigmet
plural SIGMETs also sigmets
: a notice of significant hazardous weather conditions (such as extreme turbulence, icing, or poor visibility) in a large area that is provided to the pilot of an aircraft before takeoff compare airmet

Word History


significant meteorological information

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Dictionary Entries Near SIGMET

Cite this Entry

“SIGMET.” Dictionary, Merriam-Webster, Accessed 22 May. 2024.

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