Sep 24, 2010
Even though heavy rains didn't fall in the surrounding area, record river levels occurred on the Wisconsin River near Portage. A potent, early-fall, storm brought waves of heavy rain to western and central Wisconsin, well upstream from Portage, beginning late on Wednesday, September 22nd and continuing into early Friday, September 24th. Two-day rainfall totals of 4 to 8 inches across the Wisconsin River basin over those parts of Wisconsin resulted in flooding in the river basin from Sauk County
Source: NOAA National Weather Service Storm Events Database (event 262951). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Columbia County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.