Jun 20, 2012
A one in 500 year rainfall hit northeast Minnesota and far northwestern Wisconsin June 19th and 20th. An east to west front stalled just south of the area, across southern Minnesota and central Wisconsin early on June 19th: There was high humidity and record-breaking heat to the south of the front. Low pressure moving along the front reached southern Minnesota during the pre-dawn hours of June 20th. The low forced the warm humid air up over relatively cool air over northeast Minnesota, resul
Source: NOAA National Weather Service Storm Events Database (event 397414). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cass County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.