Iowa Tornado Warning | Effective 05/18/2026 17:39

Headline: 
Tornado Warning issued May 18 at 7:39PM CDT until May 18 at 8:30PM CDT by NWS Des Moines IA
Event: 
Tornado Warning
Urgency: 
Immediate
Effective: 
May 18, 2026 - 5:39pm
Expires: 
May 18, 2026 - 6:30pm
Description: 
TORDMX The National Weather Service in Des Moines has issued a * Tornado Warning for... Southeastern Polk County in central Iowa... Northwestern Marion County in south central Iowa... Southwestern Jasper County in central Iowa... Northern Warren County in south central Iowa... * Until 830 PM CDT. * At 739 PM CDT, a severe thunderstorm capable of producing a tornado was located over Spring Hill, or near Indianola, moving east at 50 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * This dangerous storm will be near... Carlisle and Hartford around 745 PM CDT. Runnells around 750 PM CDT. Swan around 755 PM CDT. Monroe around 805 PM CDT. Other locations impacted by this tornadic thunderstorm include Prairie City Krohn Airport, Spring Hill, Swan, Hartford, Runnells, Ackworth, and Elk Rock State Park. This includes Interstate 80 near mile marker 157.
Instruction: 
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Area Description: 
Jasper, IA; Marion, IA; Polk, IA; Warren, IA
Forcast Office: 
NWS Des Moines IA