May 8, 2009
A long-lived bow echo that had produced widespread wind damage over southern Illinois moved east into Kentucky during the late morning hours. As it moved east, the system encountered a strengthening low-level jet across the Ohio Valley, which helped modify the motion of the line, resulting in training storms of extremely heavy rain that caused flash flooding. Individual storms developing ahead of the line continued to produce damaging winds, with two storms producing tornadoes, before the main
Source: NOAA National Weather Service Storm Events Database (event 172682). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Butler County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.