SIGMET

Definitions

• The acronym for Significant Meteorological information. A weather advisory in abbreviated plain language concerning the occurrence or expected occurrence of potentially hazardous en route weather phenomena that may affect the safety of aircraft opera
• Significant Meteorological Information.
• The acronym for Significant Meteorological information. A weather advisory issued concerning weather significant to the safety of all aircraft.

References

• Balloon Flying Handbook, Federal Aviation Administration, 2024
• Instrument Flying Handbook, Federal Aviation Administration, 2014
• Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023