Headline:
Severe Thunderstorm Warning issued July 29 at 8:50PM MDT until July 29 at 9:30PM MDT by NWS Rapid City SD
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
July 29, 2026 - 7:50pm
Expires:
July 29, 2026 - 8:30pm
Description:
At 850 PM MDT, severe thunderstorms were located along a line from 6
miles southeast of Bridger to over Long Valley, or along a line from
30 miles north of Philip to 21 miles northeast of Martin, moving east
at 25 mph.
HAZARD...60 MPH wind gusts and small hail. At 835 PM MDT a wind gust
of 64 MPH was measured at Cottonwood, and a wind gust of 58
MPH was measured at Cactus Flats at 836 PM.
SOURCE...Automated observations.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Philip, Kadoka, Wanblee, Long Valley, Cactus Flat, Cedar Pass,
Grindstone, George Town, Cottonwood, Minuteman Missile Visitors
Center, Delta 1 Launch Facility, Grindstone Butte, Intersection of
Highway 73 and White River, Eagle Nest Butte and northeastern Pine
Ridge Reservation.
This includes Interstate 90 in South Dakota between Mile Markers 123
and 156.
Instruction:
Seek shelter inside a well-built structure and stay away from
windows. These storms have produced damaging winds.
If you observe hail, wind damage, or flooding, please report your
observations to the National Weather Service office in Rapid City via
phone, email, or social media, as soon as it is safe to do so.
Area Description:
Haakon, SD; Jackson, SD; Pennington, SD
Forcast Office:
NWS Rapid City SD
Sender:
w-nws.webmaster@noaa.gov