Iowa Severe Thunderstorm Warning | Effective 05/17/2026 18:58

Headline: 
Severe Thunderstorm Warning issued May 17 at 8:58PM CDT until May 17 at 9:15PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 6:58pm
Expires: 
May 17, 2026 - 7:15pm
Description: 
At 856 PM CDT, severe thunderstorms were located along a line extending from near Wahpeton to 6 miles west of Silver Lake to Laurens, moving northeast at 60 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Mesonet. At 848 PM CDT, a 72 mph wind gust was reported via personal weather station 4 miles south of Albert City. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Spencer In Clay County, Spirit Lake, Milford, Arnolds Park, Newell, Okoboji, Sioux Rapids, Albert City, Everly, Royal, Terril, Wahpeton, Peterson, West Okoboji, Marathon, Fostoria, Linn Grove, Webb, Truesdale, and Greenville.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for northwestern Iowa. This is a DANGEROUS SITUATION. These storms are producing widespread wind damage across Clay County Iowa. SEEK SHELTER NOW inside a sturdy structure and stay away from windows.
Area Description: 
Buena Vista, IA; Clay, IA; Dickinson, IA
Forcast Office: 
NWS Sioux Falls SD