South Dakota Severe Thunderstorm Warning | Effective 05/17/2026 13:37

Headline: 
Severe Thunderstorm Warning issued May 17 at 3:37PM CDT until May 17 at 4:15PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 1:37pm
Expires: 
May 17, 2026 - 2:15pm
Description: 
At 336 PM CDT, a severe thunderstorm was located 7 miles east of Menno, or 20 miles southwest of Parker, moving east at 50 mph. HAZARD...80 mph wind gusts and golf ball size hail. SOURCE...Radar indicated. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect considerable damage to roofs, windows, and vehicles. Extensive tree damage and power outages are likely. Locations impacted include... Viborg, Hurley and Centerville.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for southeastern South Dakota. For your protection move to an interior room on the lowest floor of a building. This is a potentially deadly storm. Seek shelter in an interior room on the lowest floor of a well-built structure. Abandon vehicles in search of a more substantial permanent structure. Stay away from windows.
Area Description: 
Bon Homme, SD; Clay, SD; Hutchinson, SD; Turner, SD; Yankton, SD
Forcast Office: 
NWS Sioux Falls SD