EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaColumbia, WI Effective8/21/2026, 4:00:00 PM CDT Expires8/21/2026, 10:00:00 PM CDT Severe Thunderstorm Watch issued...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaSouthern Foothills; Central Black Hills; Southern Black Hills; Custer Co Plains; Hermosa Foothills; Eastern...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaDane, WI; Iowa, WI Effective8/21/2026, 3:54:00 PM CDT Expires8/21/2026, 5:00:00 PM CDT Severe Thunderstorm...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaMoore; Hutchinson; Potter; Carson Effective8/21/2026, 3:56:00 PM CDT Expires8/21/2026, 4:45:00 PM CDT Special Weather...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaSauk; Columbia Effective8/21/2026, 3:56:00 PM CDT Expires8/21/2026, 4:45:00 PM CDT Special Weather Statement issued...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaAtchison Effective8/21/2026, 3:50:00 PM CDT Expires8/21/2026, 4:15:00 PM CDT Special Weather Statement issued August...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaBrown; Jackson Effective8/21/2026, 3:50:00 PM CDT Expires8/21/2026, 4:15:00 PM CDT Special Weather Statement issued...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaAcadia, LA; Allen, LA; Avoyelles, LA; Beauregard, LA; Calcasieu, LA; Evangeline, LA; Jefferson Davis,...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaBienville, LA; Caldwell, LA; De Soto, LA; Grant, LA; Jackson, LA; La Salle, LA;...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaIowa, WI; Sauk, WI Effective8/21/2026, 3:23:00 PM CDT Expires8/21/2026, 4:15:00 PM CDT Severe Thunderstorm...