Headline:
Severe Thunderstorm Warning issued August 11 at 9:03PM MDT until August 11 at 9:45PM MDT by NWS Rapid City SD
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
August 11, 2026 - 8:03pm
Expires:
August 11, 2026 - 8:45pm
Description:
At 903 PM MDT, a severe thunderstorm was located near Quinn, or 22
miles west of Philip, moving southeast at 35 mph.
THIS IS A DESTRUCTIVE STORM FOR WASTA, WALL, QUINN, COTTONWOOD.
HAZARD...80 mph wind gusts and golf ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Wall, Interior, Quinn, Cactus Flat, Cedar Pass, Cottonwood, Delta 1
Launch Facility, Minuteman Missile Visitors Center, Delta 9 Missile
Silo, Pinnacles Ranger Station and northeastern Badlands National
Park.
This includes Interstate 90 in South Dakota between Mile Markers 110
and 146.
Instruction:
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing widespread
destructive winds and dangerous hail.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Area Description:
Haakon, SD; Jackson, SD; Pennington, SD
Forcast Office:
NWS Rapid City SD
Sender:
w-nws.webmaster@noaa.gov