Area Forecast Discussion
Issued by NWS Louisville, KY

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FXUS63 KLMK 251932

Area Forecast Discussion
National Weather Service Louisville KY
332 PM EDT Wed Apr 25 2018

.Short Term...(This evening through Thursday night)
Issued at 300 PM EDT Wed Apr 25 2018

(Tonight) - Dry and mostly cloudy with below normal temperatures.

The CWA sits near the axis of a large deep upper trough. Low level
clouds will continue east of Interstate 65 and mid level clouds will
move in from the west keeping most of the CWA under cloud cover with
a few areas in southern Indiana possibly seeing clearing skies as a
surface high moves across central Indiana tonight into tomorrow.

(Thursday - Thursday Night) - Light rain chances for south central

A deep shortwave located with an upper low will become vertically
stacked with a surface low in northern Mississippi. This stacked low
will continue moving east through the Tennessee River Valley. The
northern edge of this system will likely produce light rain near the
Kentucky and Tennessee line before tapering off near the Western
Kentucky Parkway. The system will move out of the area during
Thursday night. Thursday`s highs will reach the 60s again with lows
Thursday night dropping to the low to mid 40s.


.Long Term...(Friday through Wednesday)
Issued at 315 PM EDT Wed Apr 25 2018

(Friday) - Slight chance of sprinkles for east central Kentucky.

A weak cold front starts to move through the CWA from the northwest
during the morning hours. By afternoon, the front will provide a
small chance for rain to east central Kentucky. There isn`t much
moisture in the area to form precipitation. The GFS currently is the
outlier showing some moisture giving a chance of precipitation. This
is the thinking behind keeping a small chance with not much, if
anything, more than sprinkles expected. The front bringing slightly
cooler temperatures and clearer skies.

(Friday Night) - The pattern changes.

A surface low passes through northern Indiana and Ohio Friday night
clearing the way for high pressure to start building in the CWA by
Saturday. During the weekend, the large surface low will cover the
midwest as the upper trough moves east.

(Monday - Wednesday) - Much warmer temperatures move in to the

The axis of the upper ridge moves east across the area. Southwest
flow brings much warmer temperatures to the CWA. Expect highs near
80. The next weather system appears to come into the picture by the
second half of Wednesday.


.Aviation...(18Z TAF Issuance)
Issued at 102 PM EDT Wed Apr 25 2018

Satellite images and area cameras are starting to show some breaks
in the stratus this afternoon. In addition, cloud bases will
continue to rise. All sites should have VFR sky conditions by mid to
late afternoon. The lower clouds may break up for a period tonight,
but mid and high clouds will be streaming in. Winds will become
light and variable tonight. Some light fog with reduced visibilities
and lower cigs will be possible at LEX early tomorrow morning. This
should mix out by mid morning.




Short Term...KDW
Long Term...KDW
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