Iowa, Minnesota, South Dakota Severe Thunderstorm Warning | Effective 05/17/2026 14:29

Headline: 
Severe Thunderstorm Warning issued May 17 at 4:29PM CDT until May 17 at 5:00PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 2:29pm
Expires: 
May 17, 2026 - 3:00pm
Description: 
At 429 PM CDT, severe thunderstorms were located along a line extending from near Tea to Worthing to 7 miles west of Canton, moving east at 40 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Sioux Falls, Harrisburg, Tea, and Lake Alvin State Recreation Area around 435 PM CDT. Other locations in the path of these severe thunderstorms include Larchwood, Inwood, Rowena, Brandon, Lester, Valley Springs, Hills and Alvord.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for northwestern Iowa...southwestern Minnesota...and southeastern South Dakota. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Lyon, IA; Rock, MN; Lincoln, SD; Minnehaha, SD; Turner, SD
Forcast Office: 
NWS Sioux Falls SD
Sender: 
w-nws.webmaster@noaa.gov