Jul 3, 2018
During the overnight hours of Tuesday, July 3rd, a persistent line of storms, with rainfall rates of 1 to 2 inches per hour, moved very little from Marshall to Redwood Falls, Olivia, then southward to Tracy, Lamberton, and Springfield, Minnesota. The heaviest rainfall held over the Redwood, and Cottonwood river basin for several hours. Several of the flash flooding parameters, including flash flood guidance, and return period for a 6 hour rainfall event, were extreme. The suggested return period
Source: NOAA National Weather Service Storm Events Database (event 757909). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Redwood County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.