⚠️ Severe Thunderstorm Warning – Fall River, SD – Friday, July 31, 2026

Severe Thunderstorm Warning issued July 31 at 5:10PM MDT until July 31 at 5:45PM MDT by NWS Rapid City SD

Details

SVRUNR

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for…
Central Fall River County in southwestern South Dakota…

* Until 545 PM MDT.

* At 510 PM MDT, a severe thunderstorm was located near Cottonwood
Springs Dam, or 7 miles west of Hot Springs, moving south at 20
MPH.

HAZARD…Half dollar size hail. Multiple trained weather spotters
have confirmed quarter size hail with this storm near
Argyle.

SOURCE…Trained spotters reported.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Hot Springs, Cascade Falls, Angostura Reservoir, Cottonwood Springs
Dam and Cold Brook Reservoir.

Instructions

Seek shelter inside a well-built structure and stay away from
windows. This storm has produced large hail.

If you observe hail, wind damage, or flooding, please report your
observations to the National Weather Service office in Rapid City via
phone, email, or social media, as soon as it is safe to do so.

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