Iowa, Minnesota, South Dakota Severe Severe Thunderstorm Warning | Effective 07/01/2026 01:23

Headline: 
Severe Thunderstorm Warning issued July 1 at 3:23AM CDT until July 1 at 3:45AM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 1, 2026 - 1:23am
Expires: 
July 1, 2026 - 1:45am
Description: 
At 323 AM CDT, severe thunderstorms were located along a line extending from near Harrisburg to near Hills to near Matlock, moving north at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Sioux Falls, Brandon, Valley Springs, Ellsworth, Little Rock, Beaver Creek, Corson, Rowena, Luverne, Garretson, Palisades State Park, Renner, Crooks, Blue Mounds State Park, Adrian, Hardwick and Sherman.
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 these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Lyon, IA; O'Brien, IA; Osceola, IA; Sioux, IA; Nobles, MN; Rock, MN; Lincoln, SD; Minnehaha, SD
Forcast Office: 
NWS Sioux Falls SD