Aug 17, 2025
During the overnight, a slow moving convective cluster within an environment with a strong low-level jet and abundant deep-layer moisture slid from western to southern Minnesota. Storms continually regenerated on the southwest flank of the cluster, with a boundary remaining stationary for several hours from south of Marshall to north of Westbrook. Some areas had more spotty heavy rainfall the prior night, and new rainfall amounts were generally from 2 to 4 inches in the band with radar estimates
Source: NOAA National Weather Service Storm Events Database (event 1290887). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lyon County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.