August 17, 2026

Midwest Storm Chasers

Live Weather Coverage & Severe Storm Reporting

⚠️ Severe Thunderstorm Warning – Custer, SD; Pennington, SD – Sunday, August 16, 2026

Event Severe Thunderstorm Warning
Severity Severe
Urgency Immediate
Certainty Observed
Area Custer, SD; Pennington, SD
Effective 8/16/2026, 5:58:00 PM CDT
Expires 8/16/2026, 6:45:00 PM CDT

Severe Thunderstorm Warning issued August 16 at 4:58PM MDT until August 16 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…
Northeastern Custer County in southwestern South Dakota…
Southern Pennington County in west central South Dakota…

* Until 545 PM MDT.

* At 458 PM MDT, a severe thunderstorm was located near Thompson
Butte, or 19 miles southeast of Rapid City, moving southeast 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…
Folsom, Farmingdale and Railroad Buttes.

Instructions

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