South Dakota Severe Severe Thunderstorm Warning | Effective 07/31/2026 15:39

Headline: 
Severe Thunderstorm Warning issued July 31 at 4:39PM MDT until July 31 at 5:15PM MDT by NWS Rapid City SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 31, 2026 - 3:39pm
Expires: 
July 31, 2026 - 4:15pm
Description: 
At 439 PM MDT, a severe thunderstorm was located over Argyle, or 11 miles northwest of Hot Springs, moving southeast at 15 mph. HAZARD...Ping pong ball size hail. SOURCE...Trained spotters reported. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include... Hot Springs, Pringle, Argyle, Cold Brook Reservoir, Cottonwood Springs Dam and Wind Cave National Park.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. This storm has produced large hail.
Area Description: 
Custer, SD; Fall River, SD
Forcast Office: 
NWS Rapid City SD
Sender: 
w-nws.webmaster@noaa.gov