South Dakota Severe Thunderstorm Warning - Severe | Effective 05/31/2026 15:44

Headline: 
Severe Thunderstorm Warning issued May 31 at 5:44PM CDT until May 31 at 6:00PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 31, 2026 - 3:44pm
Expires: 
May 31, 2026 - 4:00pm
Description: 
At 543 PM CDT, a severe thunderstorm was located over Emery, or 21 miles west of Lake Vermillion State Recreation Area, moving northeast at 15 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. At 530 PM, quarter sized hail and heavy rain was reported 1 WSW of Emery. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Spencer In McCook County and Farmer around 550 PM CDT.
Instruction: 
For your protection move to an interior room on the lowest floor of a building. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Sioux Falls. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Hanson, SD; McCook, SD
Forcast Office: 
NWS Sioux Falls SD