Pilot/Controller Glossary

AIRMEN'S METEOROLOGICAL INFORMATION (AIRMET)-

This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.

A concise description of an occurrence or expected occurrence of specified en route weather phenomena that may affect the safety of aircraft operations, but at intensities lower than those that require the issuance of a SIGMET. An AIRMET may be issued when any of the following weather phenomena are occurring or expected to occur:

Retrieved from ecfr.gov on July 18, 2026.