Jul 23, 2010
A very unstable atmosphere was in place over Iowa with CAPE values around 2000 J/kg and lifted indices in the -8 to -10 C range. Precipitable water increased to around 2.25 inches along a boundary that extended from northeast into west central Iowa. Downdraft CAPE was in the 700 to 1000 J/kg range with 400 to 800 J/kg available in the -10 to -30 C layer of the atmosphere. The LCL was between 750 and 1000 meters. The freezing level was very high, around 16,000 feet. In spite of the relativel
Source: NOAA National Weather Service Storm Events Database (event 235044). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Bremer County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.