South Dakota Tornado Warning - Extreme | Effective 05/31/2026 19:28

Headline: 
Tornado Warning issued May 31 at 9:28PM CDT until May 31 at 10:00PM CDT by NWS Sioux Falls SD
Event: 
Tornado Warning
Urgency: 
Immediate
Effective: 
May 31, 2026 - 7:28pm
Expires: 
May 31, 2026 - 8:00pm
Description: 
At 928 PM CDT, a severe thunderstorm capable of producing a tornado was located near Union Grove State Park, or 10 miles north of Vermillion, moving east at 10 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. Locations impacted include... Union Grove State Park.
Instruction: 
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Area Description: 
Clay, SD; Union, SD
Forcast Office: 
NWS Sioux Falls SD