May 29, 2014
Scattered storms developed during the afternoon and evening of May 29th within an environment of moderate instability and almost non-existent winds all the way up through 20 thousand feet. Isolated storms during the afternoon and evening hours produced a quick one to two inches of rain within an hour before dissipating. Around mid evening, one storm formed right over downtown Louisville. An estimated one and one half to two inches fell within 45 minutes, overwhelming the city's sewer system.
Source: NOAA National Weather Service Storm Events Database (event 509311). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Jefferson County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.