National Weather Service United States Department of Commerce

Overview

Multiple rounds of severe weather moved across portions of southeastern SD, northwestern IA, and southwestern MN during the afternoon/evening hours on Saturday, Aug. 28, 2021. Extremely large hail, damaging winds, tornadoes, and flooding were reported. The combination of torrential rainfall and numerous rounds of storms triggered both flash flooding and river flooding for portions of the area, despite the drought conditions present at the time of the event.

Image
Shelf Cloud near Canton, SD Saturday Afternoon

(Credit: Brett Davelaar)

nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo