Alert list
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Map
Polygons: NWS warnings/watches. Blue: SPC storm reports (recent days). Purple: community (approved only).
Sign in to submit a ground-truth observation.
Log inSPC reports are official climatological CSVs (recent days). Community dots require sign-in, moderation, and approval.
Map popups show NWS text when you click a polygon. For the full product, follow links on alerts.weather.gov.