Area Forecast Discussion
Issued by NWS Louisville, KY

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FXUS63 KLMK 212203

Area Forecast Discussion
National Weather Service Louisville KY
603 PM EDT Sun Apr 21 2019

...Updated Aviation Discussion...

.Short Term...(This evening through Monday)
Issued at 230 PM EDT Sun Apr 21 2019

After a rocky start to the Easter weekend yesterday and then this
morning`s fog, it really has turned into a beautiful day out there.
Winds are light and variable with high pressure right over us.
Temperatures are warming, rising to the mid 60s to around 70 for
many locations. Tonight, the high will shift slowly eastward.
Conditions may be calm enough for some river valley fog in our I-75
zones, but the farther west you go we should expect a subtle south
wind keeping things mixed. Lows will be in the mid 40s east and
around 50 west. A little stronger south wind Monday will make
temperatures rise above normal, possibly hitting the 80s in a spot
or two.

.Long Term...(Monday night through Sunday)
Issued at 247 PM EDT Sun Apr 21 2019

Mild mid-level ridging over the area is expected Monday night
through the first half of Tuesday. This will provide clear skies and
warm temperatures with lows Tuesday morning only dropping into the
50s. While on Tuesday temperatures go solidly into the 70s with the
start of the day under clear skies.

By the afternoon, a cold front that stretches from a deep low over
the eastern Great Lakes back along the panhandle of Oklahoma begins
to move southeast over the Ohio River Valley. The front will bring
light showers with a possible rumble or two of thunder during the
afternoon to evening hours. The front will then become stationary
over the area. Leading to rounds of light precipitation until the
low pressure system at the tail of the cold front moves east of the
CWA Friday morning.

During Friday, ridging begins to move east into the area with a
large area of high pressure at the surface. Clear skies will provide
great weather for Friday and Saturday with a north wind keeping
temperatures in the mid 70s.


.Aviation...(00Z TAF Issuance)
Updated at 603 PM EDT Sun Apr 21 2019

Copious sunshine today and a dry atmosphere allowed dew points to
mix out into the 30s (down from the mid 40s this morning) across
much of central Kentucky and southern Indiana. Despite clear skies
and nearly calm winds, low temperatures tonight should stay several
degrees above crossover temperatures so widespread fog is not
expected. The best candidate for any reduction in visibility would
be at LEX, closer to the center of a surface high over the upper
Ohio Valley, right around sunrise.

Pleasant flying conditions will continue on Monday with a light
southerly breeze behind that surface high to our east.




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