Jun 12, 2013
Low pressure moved northeast out of north central Kansas into central Iowa by mid day on the 12th, then into northern Illinois by evening. A strong push of very warm and humid air pushed into the state south of the warm front extending east from the low. Temperatures warmed into the upper 80s to low 90s, with dewpoint temperatures in the low 70s. The airmass became unstable with CAPE rising to 2500 to 4000 J/kg by mid afternoon. Precipitable water values rose to around 1.8 inches by late aft
Source: NOAA National Weather Service Storm Events Database (event 446009). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cerro Gordo County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.