Skip to content
Define AviationCFI lesson plans to teach aviation lessons

CEILING [ICAO]

Weather Services

All definitions
« Back to Glossary Index

The height above the ground or water of the base of the lowest layer of cloud below 6,000 meters (20,000 feet) covering more than half the sky.

Source FAA Pilot/Controller Glossary · checked 2026-08-25

« Back to Glossary Index

More in Weather Services

Enjoying Define Aviation ad-free?

Chip in and ads disappear right away in this browser — cancel anytime, no account needed.

Secure checkout via Stripe — Apple Pay, Google Pay, and cards.