South Dakota Severe Severe Thunderstorm Warning | Effective 08/11/2026 14:24

Headline: 
Severe Thunderstorm Warning issued August 11 at 3:24PM MDT until August 11 at 4:00PM MDT by NWS Rapid City SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 11, 2026 - 2:24pm
Expires: 
August 11, 2026 - 3:00pm
Description: 
At 324 PM MDT, a severe thunderstorm was located near Hermosa, or 16 miles south of Rapid City, moving southeast at 20 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Hermosa, Fairburn and Hayward.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.
Area Description: 
Custer, SD; Pennington, SD
Forcast Office: 
NWS Rapid City SD
Sender: 
w-nws.webmaster@noaa.gov