Iowa Severe Thunderstorm Warning | Effective 05/15/2026 16:46

Headline: 
Severe Thunderstorm Warning issued May 15 at 6:46PM CDT until May 15 at 7:30PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 15, 2026 - 4:46pm
Expires: 
May 15, 2026 - 5:30pm
Description: 
SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Northwestern Webster County in central Iowa... Southeastern Pocahontas County in northwestern Iowa... Northeastern Calhoun County in west central Iowa... Southwestern Humboldt County in north central Iowa... * Until 730 PM CDT. * At 646 PM CDT, a severe thunderstorm was located over Pomeroy, or 9 miles north of Rockwell City, moving northeast at 30 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Manson, Pomeroy, and Twin Lakes around 650 PM CDT. Pioneer around 710 PM CDT. Clare around 715 PM CDT. Other locations impacted by this severe thunderstorm include Palmer, Pioneer, Twin Lakes, Twin Lakes State Park, Pomeroy, Clare, Jolley, Barnum, and Gilmore City.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Calhoun, IA; Humboldt, IA; Pocahontas, IA; Webster, IA
Forcast Office: 
NWS Des Moines IA