Iowa Severe Thunderstorm Warning | Effective 05/15/2026 18:09

Headline: 
Severe Thunderstorm Warning issued May 15 at 8:09PM CDT until May 15 at 8:30PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 15, 2026 - 6:09pm
Expires: 
May 15, 2026 - 6:30pm
Description: 
At 808 PM CDT, severe thunderstorms were located along a line extending from 5 miles west of East Peru to near Murray to 4 miles northeast of Grand River, moving east at 55 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Winterset, Osceola, Sun Valley Lake, Lakeside Casino, Murray, Truro, Lorimor, Van Wert, East Peru, Macksburg, Thayer, Ellston, and Murray Roadside Rest Area. This includes Interstate 35 between mile markers 20 and 37.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Clarke, IA; Decatur, IA; Madison, IA; Ringgold, IA; Union, IA
Forcast Office: 
NWS Des Moines IA