⚠️ Severe Thunderstorm Warning – Lincoln, SD; McCook, SD; Minnehaha, SD; Turner, SD – Thursday, August 20, 2026

Severe Thunderstorm Warning issued August 20 at 6:56PM CDT until August 20 at 7:45PM CDT by NWS Sioux Falls SD

Details

SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for…
Southwestern Minnehaha County in southeastern South Dakota…
Northwestern Lincoln County in southeastern South Dakota…
Southeastern McCook County in southeastern South Dakota…
Northeastern Turner County in southeastern South Dakota…

* Until 745 PM CDT.

* At 656 PM CDT, a severe thunderstorm was located near Monroe, or
near Lake Vermillion State Recreation Area, moving east at 35 mph.

HAZARD…Ping pong ball size hail and 60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near…
Parker around 700 PM CDT.
Chancellor around 705 PM CDT.
Sioux Falls, Tea, and Lennox around 710 PM CDT.

Other locations in the path of this severe thunderstorm include
Harrisburg and Worthing.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.

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