⚠️ Severe Thunderstorm Warning – Custer, SD; Fall River, SD; Pennington, SD; Weston, WY – Monday, June 22, 2026

Severe Thunderstorm Warning issued June 22 at 8:34PM MDT until June 22 at 9:30PM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Custer County in southwestern South Dakota…
Northeastern Fall River County in southwestern South Dakota…
Southwestern Pennington County in west central South Dakota…
East Central Weston County in northeastern Wyoming…

* Until 930 PM MDT.

* At 834 PM MDT, severe thunderstorms were located along a line from
over Redbank Spring Campground to 6 miles southeast of Newcastle,
or along a line from 14 miles northeast of Newcastle to 6 miles
southeast of Newcastle, moving southeast at 55 mph.

HAZARD…60 mph wind gusts and quarter size hail.

SOURCE…Public reported.

IMPACT…Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.

* Locations impacted include…
Newcastle, Moon, Deerfield, Crazy Horse Memorial, Hill City,
Custer, Stockade Lake, Mount Coolidge, Keystone, Legion Lake,
Pringle, Blue Bell, Argyle, Hayward, Hermosa, Hot Springs,
Fairburn, Buffalo Gap, Oral and Folsom.

Instructions

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
have produced large hail.

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