South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 21:59

Headline: 
Severe Thunderstorm Warning issued August 11 at 10:59PM MDT until August 11 at 11:30PM MDT by NWS Rapid City SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 11, 2026 - 9:59pm
Expires: 
August 11, 2026 - 10:30pm
Description: 
At 1159 PM CDT, severe thunderstorms were located along a line from 7 miles north of Wood to over He Dog, or along a line from 16 miles east of White River to 19 miles west of Mission, moving southeast at 40 mph. THESE ARE DESTRUCTIVE STORMS FOR WOOD, MOSHER. HAZARD...100 mph wind gusts and quarter size hail. SOURCE...Automated observations. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be destroyed. Expect considerable damage to homes and businesses. Expect extensive tree damage and power outages. Locations impacted include... Mission, White River, Rosebud, Saint Francis, Parmelee, Okreek, Wood, Mosher, Upper Cut Meat, Horse Creek, Antelope, Butte Creek, Swift Bear, Ring Thunder, Soldier Creek, Fairgrounds Housing, Two Strike, Grass Mountain, He Dog and Haystack Butte.
Instruction: 
Seek shelter now inside an interior room on the lowest floor of a well-built structure. These storms have produced widespread destructive winds and are capable of producing large hail. This is a dangerous situation with winds expected to produce damage similar to a tornado. Move to an interior room on the lowest floor of a well-built structure. Mobile homes and high profile vehicles are at an enhanced risk for damage.
Area Description: 
Mellette, SD; Todd, SD; Tripp, SD
Forcast Office: 
NWS Rapid City SD
Sender: 
w-nws.webmaster@noaa.gov