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Aviation Glossary :: SIGMET  Aviation Glossary :: SIGMET FAA Written Test Preparation
Aviation Glossary Welcome to the Dauntless Aviation Glossary!

At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official, and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including our FAA written test prep and FAA practical test prep software and apps. If you like this glossary, you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).

SIGMET
SIGMET
Significant Meteorological Information.
source: FAA Balloon Flying Handbook (FAA-H-8083-11)
A weather advisory issued concerning weather significant to the safety of all aircraft. SIGMET advisories cover severe and extreme turbulence, severe icing, and widespread dust or sandstorms that reduce visibility to less than 3 miles. (See AIRMET.) (See AWW.) (See CONVECTIVE SIGMET.) (See CWA.) (See SIGMET INFORMATION.)
source: FAA Pilot/Controller Glossary
The acronym for significant Meteorological information. A weather advisory issued concerning weather significant to the safety of all aircraft.
source: FAA Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25A)
A SIGMET is a concise description of the occurrence or expected occurrence of specified en route weather phenomena which may affect the safety of aircraft operations. SIGMETs are intended for dissemination to all pilots in flight to enhance safety. SIGMETs are issued by the responsible MWO as soon as practical to give notice to operators and aircrews of potentially hazardous en-route conditions.
source: FAA/NOAA Aviation Weather Services (AC 00-45G)

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Disclaimer: While this glossary in most cases is likely to be highly accurate and useful, sometimes, for any number of editorial, transcription, technical, and other reasons, it might not be. Additionally, as somtimes you may have found yourself brought to this page through an automated term matching system, you may find definitions here that do not match the cotext or application in which you saw the original term. Please use your good judgement when using this resource.


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