⚠️ Severe Thunderstorm Warning – Lyon, IA; Rock, MN; Lincoln, SD; Minnehaha, SD; Turner, SD – Sunday, June 28, 2026

Severe Thunderstorm Warning issued June 28 at 4:24AM CDT until June 28 at 5:30AM CDT by NWS Sioux Falls SD

Details

SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for…
Lyon County in northwestern Iowa…
Rock County in southwestern Minnesota…
Minnehaha County in southeastern South Dakota…
Northern Lincoln County in southeastern South Dakota…
Northeastern Turner County in southeastern South Dakota…

* Until 530 AM CDT.

* At 423 AM CDT, severe thunderstorms were located along a line
extending from Baltic to Sioux Falls to Lennox, moving east at 40
mph.

HAZARD…60 mph wind gusts.

SOURCE…Airport Observation. At 4:22 AM CDT, the Sioux Falls
automated weather observation reported a wind gust to 63
mph.

IMPACT…Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near…
Sioux Falls, Brandon, Harrisburg, Worthing, Lake Alvin State
Recreation Area, Corson, Dell Rapids, and Renner around 430 AM
CDT.
Garretson, Valley Springs, Palisades State Park, and Rowena around
435 AM CDT.
Sherman around 440 AM CDT.

Other locations in the path of these severe thunderstorms include
Larchwood, Beaver Creek, Hills, Luverne, Lester, Hardwick, Blue
Mounds State Park and Rock Rapids.

Instructions

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

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