⚠️ Severe Thunderstorm Warning – Minnehaha, SD – Thursday, August 20, 2026

Severe Thunderstorm Warning issued August 20 at 7:09PM CDT until August 20 at 7:30PM CDT by NWS Sioux Falls SD

Details

SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for…
Northeastern Minnehaha County in southeastern South Dakota…

* Until 730 PM CDT.

* At 709 PM CDT, a severe thunderstorm was located near Lyons, or 13
miles north of Sioux Falls, moving east at 40 mph.

HAZARD…Golf 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…
Baltic and Dell Rapids around 715 PM CDT.

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.