⚠️ Severe Thunderstorm Warning – Fall River, SD; Oglala Lakota, SD – Wednesday, August 12, 2026

Severe Thunderstorm Warning issued August 12 at 5:10PM MDT until August 12 at 6:00PM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Southeastern Fall River County in southwestern South Dakota…
Southwestern Oglala Lakota County in southwestern South Dakota…

* Until 600 PM MDT.

* At 510 PM MDT, a severe thunderstorm was located 9 miles south of
Oelrichs, or 30 miles southeast of Hot Springs, moving east at 30
mph.

HAZARD…Golf ball size hail and 70 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.

* Locations impacted include…
Pine Ridge, Oelrichs, Prairie Winds Casino, South Lakeside, Number
4, Calico, Slim Butte and Slim Buttes Housing.

Instructions

Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
widespread damaging winds and dangerous hail.

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

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