Section 6. Severe
Weather Forecasts
9-6-1. GENERAL
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. An Aviation Watch
Notification Message (SPC AWW) is the weather
watch formatted for the aviation community to alert
them of organized thunderstorms forecast to produce
tornadic and/or severe weather. FSSs may obtain the
public weather watch (SPC WW) from WMSCR if
desired.
9-6-2. DISTRIBUTION
Upon receipt of SPC AWW alert, the WMSCR
immediately transmits the report on selected Service
A circuits. Severe weather status reports (WWA) are
never urgent. These are relayed unscheduled.
9-6-3. CONVECTIVE OUTLOOK
NARRATIVE (AC)
The Storm Prediction Center will issue ACs
numerous times each day. These forecasts describe
the potential for severe and nonsevere convective
activity across the contiguous U.S.
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