Sep 9, 2018
Episodes of heavy rainfall of about 5 to 15 inches in a 10 day period fell across much of northeast Iowa and southwest Wisconsin. This caused the Mississippi River to rise above major flood stage from Keithsburg to Burlington about two weeks later. The extended duration between the forecast and actual flooding allowed preparations to preclude major damage downstream.
Source: NOAA National Weather Service Storm Events Database (event 786892). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Mercer County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.