⚠️ Severe Thunderstorm Warning – Big Stone, MN; Grant, SD; Roberts, SD – Friday, September 11, 2026

Severe Thunderstorm Warning issued September 11 at 7:19PM CDT until September 11 at 8:00PM CDT by NWS Aberdeen SD

Details

SVRABR

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for…
Central Big Stone County in west central Minnesota…
Northeastern Grant County in northeastern South Dakota…
Southeastern Roberts County in northeastern South Dakota…

* Until 800 PM CDT.

* At 719 PM CDT, a severe thunderstorm was located near Corona, or 9
miles southeast of Wilmot, moving east at 25 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.

* This severe thunderstorm will be near…
Marvin around 720 PM CDT.
Corona around 725 PM CDT.
Lismore Colony around 750 PM CDT.

Instructions

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

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