Iowa Severe Thunderstorm Warning | Effective 04/15/2026 13:14

Headline: 
Severe Thunderstorm Warning issued April 15 at 3:14PM CDT until April 15 at 3:45PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 15, 2026 - 1:14pm
Expires: 
April 15, 2026 - 1:45pm
Description: 
At 313 PM CDT, a severe thunderstorm was located over Alleman, or 6 miles north of Ankeny, moving east at 20 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. Locations impacted include... Ankeny, Polk City, Huxley, Slater, Big Creek Lake, Saylorville Lake, Maxwell, Colo, Cambridge, Elkhart, Collins, Alleman, Sheldahl, Mingo, and Big Creek State Park. This includes Interstate 35 between mile markers 95 and 108.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Jasper, IA; Polk, IA; Story, IA
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov