Skip to content
Define AviationCFI lesson plans to teach aviation lessons

CENTER WEATHER ADVISORY

Weather Services

All definitions
« Back to Glossary Index

An unscheduled weather advisory issued by Center Weather Service Unit meteorologists for ATC use to alert pilots of existing or anticipated adverse weather conditions within the next 2 hours. A CWA may modify or redefine a SIGMET.

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.