⚠️ Severe Thunderstorm Warning – Custer, SD; Oglala Lakota, SD; Pennington, SD – Tuesday, August 11, 2026

Severe Thunderstorm Warning issued August 11 at 6:31PM MDT until August 11 at 7:30PM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Eastern Custer County in southwestern South Dakota…
Northwestern Oglala Lakota County in southwestern South Dakota…
South Central Pennington County in west central South Dakota…

* Until 730 PM MDT.

* At 631 PM MDT, a severe thunderstorm was located near Hermosa, or
19 miles east of Custer, moving southeast at 30 mph.

HAZARD…Ping pong ball size hail.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.

* Locations impacted include…
Fairburn, Red Shirt, Red Shirt Table Overlook and southwestern
Badlands National Park.

Instructions

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing large hail.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.