EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJuneau, WI; Monroe, WI; Richland, WI; Vernon, WI Effective8/18/2026, 3:54:00 PM CDT Expires8/18/2026, 5:00:00...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaNorthern Oconto County; Southern Marinette County Effective8/18/2026, 3:34:00 PM CDT Expires8/18/2026, 4:00:00 PM CDT...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaWood; Portage; Waushara Effective8/18/2026, 3:22:00 PM CDT Expires8/18/2026, 4:00:00 PM CDT Special Weather Statement...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaNorthern Marinette County; Northern Oconto County; Southern Marinette County Effective8/18/2026, 3:03:00 PM CDT Expires8/18/2026,...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaHouston, MN; La Crosse, WI; Vernon, WI Effective8/18/2026, 3:03:00 PM CDT Expires8/18/2026, 4:00:00 PM...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaBuchanan, IA; Delaware, IA; Dubuque, IA; Jo Daviess, IL; Stephenson, IL Effective8/18/2026, 2:48:00 PM...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaAllamakee, IA; Chickasaw, IA; Clayton, IA; Fayette, IA; Floyd, IA; Howard, IA; Mitchell, IA;...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaColumbia, WI; Dane, WI; Dodge, WI; Fond du Lac, WI; Green, WI; Green Lake,...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaCalumet, WI; Waushara, WI; Winnebago, WI Effective8/18/2026, 2:49:00 PM CDT Expires8/18/2026, 10:00:00 PM CDT...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaColumbia; Dodge Effective8/18/2026, 2:44:00 PM CDT Expires8/18/2026, 3:45:00 PM CDT Special Weather Statement issued...