Iowa, Minnesota Severe Thunderstorm Warning | Effective 05/17/2026 16:59

Headline: 
Severe Thunderstorm Warning issued May 17 at 6:59PM CDT until May 17 at 7:45PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 4:59pm
Expires: 
May 17, 2026 - 5:45pm
Description: 
At 659 PM CDT, severe thunderstorms were located along a line extending from 7 miles west of Windom to near Lakefield to near Harris, moving east at 35 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Windom, Jackson In Jackson County, Lake Park, Orleans, Kilen Woods State Park, Spirit Lake, Bergen, Okoboji, Wahpeton, Bingham Lake, Arnolds Park, West Okoboji, Mountain Lake and Superior.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for northwestern Iowa...and southwestern Minnesota. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Dickinson, IA; Osceola, IA; Cottonwood, MN; Jackson, MN; Nobles, MN
Forcast Office: 
NWS Sioux Falls SD