South Dakota Severe Severe Thunderstorm Warning | Effective 08/10/2026 15:57

Headline: 
Severe Thunderstorm Warning issued August 10 at 4:57PM MDT until August 10 at 5:45PM MDT by NWS Rapid City SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 10, 2026 - 3:57pm
Expires: 
August 10, 2026 - 4:45pm
Description: 
At 457 PM MDT, a severe thunderstorm was located over Silver City, or 8 miles north of Hill City, moving east at 35 mph. HAZARD...Tennis ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. This severe thunderstorm will be near... Pactola Reservoir, Silver City and Mystic around 500 PM MDT. Johnson Siding around 505 PM MDT. Hisega, Sheridan Lake and Keystone Wye around 510 PM MDT. Bear Country, Rapid City and Rockerville around 520 PM MDT. Reptile Gardens and Hayward around 525 PM MDT. Hart Ranch and Rapid Valley around 530 PM MDT. Black Gap and Hermosa around 535 PM MDT. Rapid City Airport and Caputa around 540 PM MDT. This includes Interstate 90 in South Dakota between Mile Markers 55 and 74.
Instruction: 
Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail.
Area Description: 
Custer, SD; Pennington, SD
Forcast Office: 
NWS Rapid City SD
Sender: 
w-nws.webmaster@noaa.gov