Area Forecast Discussion
Issued by NWS Jackson, KY

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FXUS63 KJKL 230728

Area Forecast Discussion
National Weather Service Jackson KY
328 AM EDT TUE AUG 23 2016

.SHORT TERM...(Today through Wednesday)
Issued at 330 AM EDT TUE AUG 23 2016

Mid level dry air continues to push southward into Eastern
Kentucky this morning, per latest WV imagery. This dry air has
prevented fog development across the northern counties early this
morning, with some dense fog present in the southern counties
mainly near bodies of water. There is still potential more fog
could develop close to dawn as temperatures near the cross-over
temperatures. However, it won`t be nearly as widespread as the
previous day. Any fog should being to lift around dawn and
dissipate by 13Z.

Surface high pressure will gradually slide off to the east later
today but not before we have another beautiful summer day with
lower humidities. As the high departs, southerly flow will set up
and begin ushering in warmer and more humid air. This additional
moisture will allow for some fog development tonight, mainly in
the valleys and near bodies of water. A weak upper level shortwave
will then cross through the forecast area Wednesday afternoon and
interact with the unstable airmass. This interaction should be
enough to spark isolated showers or thunderstorms during the
afternoon and evening hours, even with mid and upper level ridging
holding steady over the southeastern CONUS. The shortwave, and any
shower activity, should exit the region by Wednesday night.

.LONG TERM...(Wednesday night through Monday)
Issued at 330 AM EDT TUE AUG 23 2016

The long term discussion will be issued shortly.


.AVIATION...(For the 06Z TAFS through 06Z Tuesday night)

VFR conditions expected through the period. The exception to this
will be the deeper valley locations where fog will develop again
this morning. With drier air settling down across the region do
not expect the fog to be as prevalent as it was yesterday morning
except in the river valleys. Consequently, KSME, KLOZ, KSJS, and
KSYM visibilities will likely be affected for a few hours through
the pre-dawn hours this morning and as such went with a short
period of MVFR VSBYS, 08-12Z. Did also allow for a tempo of denser
fog affecting KSME for a time pre-dawn. Winds will generally be
light and variable through the period thanks to high pressure in


.JKL Watches/Warnings/Advisories...


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