Area Forecast Discussion
Issued by NWS Louisville, KY

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FXUS63 KLMK 240653

Area Forecast Discussion
National Weather Service Louisville KY
253 AM EDT Thu May 24 2018

.Short Term...(Today and Tonight)
Issued at 251 AM EDT Thu May 24 2018

High pressure nosing in from the north and upper level ridging will
keep the area warm and dry through the short term period. Dewpoints
will continue to be a bit lower than we have seen recently - in the
upper 50s to lower 60s. These will begin to creep up early Friday
morning which may lead to some patchy valley fog. Today and tonight
will see mostly clear skies with just some cirrus streaming
overhead. Highs today will top out in the mid to possibly upper 80s
in the Louisville Metro area. There is an Air Quality Alert in
effect for the Louisville Metro area as well today. Lows tonight
will be in the low to mid 60s.


.Long Term...(Friday through Wednesday)
Issued at 136 AM EDT Thu May 24 2018

...Muggy and Unsettled Memorial Day Weekend On Tap...

An upper trough will sit overhead through the period and will be
reinforced by low pressure crossing the Gulf of Mexico from south to
north this weekend and progressing into the southeastern United
States next week. Though the models have backed off a bit on the
total amount of atmospheric water vapor available in Indiana and
Kentucky, there will still be plenty of moisture drawn northward to
fuel showers and thunderstorms. The best chances for showers and
storms will be south of the Ohio River, especially over southern and
eastern Kentucky closer to the Gulf system. MEX P24 PoPs at LEX are
above CLIMO Saturday-Wednesday. Shear will be weak and freezing
levels high, but there will be plenty of instability in the
afternoons and evenings for thunderstorm development. Lightning and
locally heavy downpours will be the main threats to outside
activities over the holiday weekend.

Highs will be in the 80s with lows in the 60s (a few degrees warmer
in urban cores).


.Aviation...(06Z TAF Issuance)
Issued at 114 AM EDT Thu May 24 2018

Quiet weather is in store for this TAF period with high pressure
just to the north of the region. Winds will be light out of the ENE.
Skies will be mainly clear except for some cirrus streaming over the




Short Term...EER
Long Term...13
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