⚠️ Severe Thunderstorm Watch – Brown, SD; Campbell, SD; Corson, SD; Day, SD; Edmunds, SD; McPherson, SD; Marshall, SD; Walworth, SD – Tuesday, August 11, 2026

Severe Thunderstorm Watch issued August 11 at 5:40PM CDT until August 12 at 1:00AM CDT by NWS Aberdeen SD

Details

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
570 IN EFFECT UNTIL 1 AM CDT /MIDNIGHT MDT/ WEDNESDAY FOR THE
FOLLOWING AREAS

IN SOUTH DAKOTA THIS WATCH INCLUDES 8 COUNTIES

IN NORTH CENTRAL SOUTH DAKOTA

CAMPBELL CORSON EDMUNDS
MCPHERSON WALWORTH

IN NORTHEAST SOUTH DAKOTA

BROWN DAY MARSHALL

THIS INCLUDES THE CITIES OF ABERDEEN, BRITTON, EUREKA, HERREID,
IPSWICH, MCINTOSH, MOBRIDGE, AND WEBSTER.

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