Definition
SEVERE WEATHER FORECAST ALERTS
Preliminary messages issued in order to alert users that a Severe Weather Watch Bulletin (WW) is being issued. These messages define areas of possible severe thunderstorms or tornado activity. The messages are unscheduled and issued as required by the Storm Prediction Center (SPC) at Norman, Oklahoma.
- See: AIRMET
- See: GRAPHICAL AIRMEN'S METEOROLOGICAL INFORMATION
Source: FAA Pilot/Controller Glossary (verbatim from the Federal Aviation Regulations).