Section 6. Severe Weather Forecasts
Severe weather forecasts are issued by the NWS Storm Prediction Center (SPC) in Norman, Oklahoma, in the form of weather watches, convective outlooks, and status reports and transmitted to WMSCR for distribution. The SPC issues Aviation Watch Notification Messages (SAW) to provide an area threat alert for the aviation meteorology community to forecast organized severe thunderstorms that may produce tornadoes, large hail, and/or convective damaging winds as indicated in Public Watch Notification Messages within the CONUS. s may obtain SPC Public Watch Notification Messages (SEL) from WMSCR if desired.
Upon receipt of a SAW, the WMSCR immediately transmits the report on selected Service A circuits. Severe weather status reports (WW-A) are never urgent. These are relayed unscheduled.
The Storm Prediction Center will issue ACs numerous times each day. These forecasts describe the potential for severe and non-severe convective activity across the contiguous U.S.