Headline:
Severe Thunderstorm Warning issued August 11 at 2:40PM MDT until August 11 at 3:30PM MDT by NWS Rapid City SD
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
August 11, 2026 - 1:40pm
Expires:
August 11, 2026 - 2:30pm
Description:
At 240 PM MDT, a severe thunderstorm was located over Johnson Siding,
or 9 miles west of Rapid City, moving southeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Rapid City, Rapid Valley, Black Hawk, Johnson Siding, Hisega,
Rockerville, Bear Country, Reptile Gardens and Pactola Reservoir.
This includes Interstate 90 in South Dakota between Mile Markers 54
and 62.
Instruction:
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Very heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Area Description:
Pennington, SD
Forcast Office:
NWS Rapid City SD
Sender:
w-nws.webmaster@noaa.gov