EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaJohnston Effective8/17/2026, 5:51:00 PM CDT Expires8/17/2026, 6:15:00 PM CDT Special Weather Statement issued August...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaDawes; North Sioux Effective8/17/2026, 5:53:00 PM CDT Expires8/17/2026, 6:30:00 PM CDT Special Weather Statement...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaDawes Effective8/17/2026, 5:46:00 PM CDT Expires8/17/2026, 6:30:00 PM CDT Special Weather Statement issued August...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaArthur, NE; Blaine, NE; Brown, NE; Cherry, NE; Deuel, NE; Garden, NE; Grant, NE;...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaBox Butte, NE; Dawes, NE; Sioux, NE Effective8/17/2026, 5:40:00 PM CDT Expires8/18/2026, 12:00:00 AM...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJones, SD; Stanley, SD Effective8/17/2026, 5:43:00 PM CDT Expires8/17/2026, 6:45:00 PM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaBox Butte, NE; Dawes, NE Effective8/17/2026, 5:34:00 PM CDT Expires8/17/2026, 6:15:00 PM CDT Severe...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaAtoka Effective8/17/2026, 5:37:00 PM CDT Expires8/17/2026, 6:15:00 PM CDT Special Weather Statement issued August...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaHughes, SD; Lyman, SD; Stanley, SD; Sully, SD Effective8/17/2026, 5:39:00 PM CDT Expires8/17/2026, 6:45:00...
EventSpecial Weather Statement SeverityModerate UrgencyExpected CertaintyObserved AreaGarden Effective8/17/2026, 5:29:00 PM CDT Expires8/17/2026, 6:00:00 PM CDT Special Weather Statement issued August...