Aug 23, 2007
A cold frontal boundary, which actually is the same boundary as had been over the state for the past several days, began to move southeast across the state during the late afternoon of the 23rd. Thunderstorms had moved across the area in the morning and left an outflow boundary that extended from southwest into east central Iowa, a ways ahead of the cold frontal boundary itself. The airmass to the south of boundary became very unstable as highs reached the upper 80s to low 90s with dew point t
Source: NOAA National Weather Service Storm Events Database (event 42844). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Union County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.