SIGMET definitions

SIGMET

Significant Meteorological Information. A type of weather advisory regarding severe weather conditions (thunderstorms, turbulence, icing, volcanic ash, etc.) which could pose a threat to all types of aircraft. AIRMET is a less inclusive type of advisory.
Found on http://airodyssey.net/reference/glossary/

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SIGMET

Significant Meteorological Advisory
Found on http://www.translationdirectory.com/glossaries/glossary143.htm

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SIGMET

Significant Meteorological Information
Found on http://www.translationdirectory.com/glossaries/glossary287.php

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