⚠️ Severe Thunderstorm Warning – Custer, SD; Pennington, SD – Saturday, September 5, 2026

Severe Thunderstorm Warning issued September 5 at 5:40PM MDT until September 5 at 6:45PM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Northeastern Custer County in southwestern South Dakota…
Central Pennington County in west central South Dakota…

* Until 645 PM MDT.

* At 540 PM MDT, a severe thunderstorm was located near Thompson
Butte, or 19 miles southeast of Rapid City, moving northeast at 20
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…
New Underwood, Farmingdale, Folsom, Caputa, Wicksville, Railroad
Buttes and Thompson Butte.

This includes Interstate 90 in South Dakota between Mile Markers 74
and 93.

Instructions

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

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