EventHeat Advisory SeverityModerate UrgencyExpected CertaintyLikely AreaInland Kenedy; Starr; Southern Hidalgo; Inland Willacy; Inland Cameron; Coastal Kenedy; Northern Hidalgo; Coastal Willacy;...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventFlash Flood Warning SeveritySevere UrgencyImmediate CertaintyLikely AreaChambers, TX; Harris, TX; Liberty, TX Effective6/17/2026, 7:34:00 AM CDT Expires6/17/2026, 10:30:00 AM CDT...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaCarroll, IL; Henry, IL; Mercer, IL; Rock Island, IL; Whiteside, IL; Clinton, IA; Jackson,...
EventFlash Flood Warning SeveritySevere UrgencyImmediate CertaintyLikely AreaJohnson, IA; Linn, IA Effective6/17/2026, 7:24:00 AM CDT Expires6/17/2026, 1:30:00 PM CDT Flash Flood...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaDes Moines, IA; Henry, IA; Jefferson, IA; Keokuk, IA; Louisa, IA; Washington, IA Effective6/17/2026,...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaCedar, IA; Johnson, IA; Jones, IA; Keokuk, IA; Linn, IA; Louisa, IA; Muscatine, IA;...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJasper, IA; Mahaska, IA; Marion, IA; Poweshiek, IA Effective6/17/2026, 6:50:00 AM CDT Expires6/17/2026, 7:45:00...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJohnson, IA; Keokuk, IA; Linn, IA; Washington, IA Effective6/17/2026, 6:45:00 AM CDT Expires6/17/2026, 7:45:00...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaBenton, IA; Iowa, IA Effective6/17/2026, 6:09:00 AM CDT Expires6/17/2026, 7:15:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaJasper, IA; Mahaska, IA; Marshall, IA; Poweshiek, IA Effective6/17/2026, 6:08:00 AM CDT Expires6/17/2026, 7:15:00...