EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaGrundy, IA; Hardin, IA Effective7/20/2026, 5:44:00 PM CDT Expires7/20/2026, 6:15:00 PM CDT Severe Thunderstorm...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaClinton, IA; Scott, IA; Bureau, IL; Hancock, IL; Henderson, IL; Henry, IL; McDonough, IL;...
EventTornado Watch SeverityExtreme UrgencyFuture CertaintyPossible AreaDes Moines, IA; Lee, IA; Van Buren, IA Effective7/20/2026, 5:32:00 PM CDT Expires7/20/2026, 10:00:00 PM...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaMarshall, IA; Story, IA Effective7/20/2026, 5:28:00 PM CDT Expires7/20/2026, 6:15:00 PM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaBenton, IA; Cedar, IA; Iowa, IA; Johnson, IA; Jones, IA; Linn, IA; Muscatine, IA...
EventTornado Warning SeverityExtreme UrgencyImmediate CertaintyObserved AreaHamilton, IA; Hardin, IA; Story, IA Effective7/20/2026, 5:04:00 PM CDT Expires7/20/2026, 5:45:00 PM CDT Tornado...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaHamilton, IA; Hardin, IA; Story, IA Effective7/20/2026, 5:00:00 PM CDT Expires7/20/2026, 5:45:00 PM CDT...
EventFlash Flood Warning SeveritySevere UrgencyImmediate CertaintyLikely AreaHudspeth, TX Effective7/20/2026, 4:54:00 PM CDT Expires7/20/2026, 7:00:00 PM CDT Flash Flood Warning issued...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaFlorence, WI; Forest, WI Effective7/20/2026, 4:58:00 PM CDT Expires7/20/2026, 5:45:00 PM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJasper, IA; Marshall, IA; Poweshiek, IA; Tama, IA Effective7/20/2026, 4:45:00 PM CDT Expires7/20/2026, 5:45:00...