839 
fxus63 klmk 240701 cca 
afdlmk 


Area forecast discussion 
National Weather Service Louisville Kentucky 
300 am EDT Thursday Jul 24 2008 


Short term (today and tonight)... 


High pressure to bring a quiet today and tonight to southern Indiana 
and central Kentucky with little cloud cover until late tonight when 
some middle level moisture begins to approach the area from the 
northwest. Temperatures today will be in the lower to middle 80s...a 
couple degrees warmer than yesterday...though low relative humidity 
values this afternoon will make for another pleasant day across the 
region. 


Long term (friday through wednesday)... 


Upper level ridge begins to break down on Friday as shortwave 
associated with upper low pressure system across southern Canada 
approaches the area. Models generally agree on keeping the bulk of 
heavier precipitation to the west of the forecast area for most of 
Friday with chances increasing late Friday night. However...will 
leave chance to slight chance probability of precipitation for Friday as middle level moisture 
begins to return to the area ahead of low level moisture push. 
Also...with upper low strengthening and deepening into Saturday 
atmosphere will become increasingly unstable as middle and upper level 
temperatures and heights begin to fall. 


Weak cold front will move through the area on Saturday afternoon 
and evening and will be a focusing mechanism for continued 
thunderstorm activity. Do not expect as much of a cool down as the 
region experienced with this last cold front but relative humidities 
will be decreased making heat indices much more comfortable. 


Slight chances of precipitation are expected Monday...mainly east of 
Interstate 65 as upper low is slow to push northeast...however 
moisture will be limited so showers and thunderstorms should remain 
fairly isolated. Monday through Wednesday should be fairly dry with 
a ridge of high pressure building over the area bringing a return to 
hot and humid summertime conditions. 


&& 


Aviation (06z tafs)... 


High pressure to bring mainly VFR conditions to the taf locations 
during the 06z Thursday-06z Friday time frame. Only exception to 
this may be some MVFR visibilities at klex and kbwg between 08z-13z 
in localized fog. 


&& 


Lmk watches/warnings/advisories... 
Kentucky...none. 
In...none. 
&& 


$$ 
Weather.Gov/Louisville 


Short term...maczko 
long term....ls 
aviation.....Maczko