Flash Flood Summary for August 4th

Flash Flooding impacted southern Indiana and north central Kentucky August 4th.  Among the hardest hit areas were the Louisville Metro Area as well as Jeffersonville, New Albany, and Clarksville in Indiana.  Several roads were closed due to flood waters including I-65, two water rescues were performed in New Albany, several buildings in downtown Louisville flooded, major flooding occurred around Churchill Downs and on the University of Louisville campus, and numerous residential basements flooded across the area.  Also there was one lightning related fire on Hurstbourne Lane near in I-64 in the Louisville Metro Area.

Another round of thunderstorms and heavy rain moved through the area in the afternoon and additional flooding occurred in the Bluegrass Region, including the Lexington Metro area. 

Below is an unofficial rainfall estimate from the radar through 1100 pm EDT Tuesday.  It should be noted that radar rainfall amounts are estimates and could be slightly off from real observations.  However, based on rainfall reports from various weather observers this morning, these radar rainfall amounts seem to be fairly close to real observations.  In this image, the following color scale for rainfall is used:

Greens:  1.0- 2.5 inches                  Light Yellow:  2.5-3.5 inches             Dark Yellow:  3.5-5.0 inches             Reds:  5.0-7.0 inches

Unofficially at Standiford International Airport (SDF), 4.50 inches of rain fell, which broke the old record for highest rainfall in a single day in August.  Nearly 3 inches of that rain fell in one hour early Tuesday morning.

 ...Updated as of 500 am EDT Wednesday...

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