Update...
Essentially, Friday looks to be dry (until late Fri. evening)...Saturday looks to be a \'wash-out\', with 1-3 inches of rain in the Louisville area, depending on how heavy the thunderstorms are....
Area forecast discussion
National Weather Service Louisville Kentucky
650 am EDT Thursday Apr 29 2010
\"On Friday...the warmup continues with afternoon highs
generally from 80-84 in most areas...excessive heavy rainfall and strong to severe thunderstorms likely for Saturday and Sunday...\"
\"Two episodes of active weather look increasingly likely. The
first episode late Friday night and early Saturday, a second,
larger episode occuring Saturday night and during the first part of Sunday.\"
\"At this time...we\'re going to be carrying 2-3 inches of precipitation
in the forecast for Sat/sun...though some isolated amounts of 4-5 inches
are certainly possible.\"