Area Forecast Discussion
Issued by NWS Jackson, KY

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000 FXUS63 KJKL 020852 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY 352 AM EST Fri Dec 2 2016 .SHORT TERM...
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(Today through Saturday) Issued at 352 AM EST FRI DEC 2 2016 A stacked low pressure system across Quebec will continue to result in cyclonic flow into the Ohio Valley, producing rounds of clouds moving across eastern Kentucky. Despite the greatest concentration of stratocumulus remaining north of the Interstate 64 corridor, cirrus will stream in downstream of an upper ridge attempting to build north across the Great Plains as an upper low digs into the Gulf of California. However, aforementioned Canadian upper low will limit height rises, subsequently keeping high temperatures in the mid 40s to low 50s as a low level cold dome remains locked in place into the Tennessee Valley. Surface ridging stretching from the northern plains to the northern gulf coast will make greater headway toward the Commonwealth today. Enough of a pressure gradient will remain in place to allow for west/southwest winds to still increase to 5-10 mph later this morning through this afternoon. This surface ridge looks to nose into southern Kentucky this evening and tonight, producing calm surface winds. Portions of the Big Sandy region through northeast Kentucky will likely see enough low level moisture to keep radiational cooling from taking full effect. The remainder of eastern Kentucky will likely also be somewhat limited in this regard as the cirrus shield thickens and becomes more widespread. Nonetheless, valley locations should cool into the mid 20s while ridges remain near 30 degrees by daybreak Saturday. Upper ridging looks to finally move overhead by later in the day on Saturday with accompanying height rises. However, top-down moistening and high pressure overhead, making for slow retreat of the lingering cold dome, will in all likelihood result in below normal temperatures once again to start the weekend, as highs top out in the mid 40s to low 50s. .LONG TERM...(Saturday night through Thursday) Issued at 352 AM EST FRI DEC 2 2016 The Long Term Discussion will be issued shortly.
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&& .AVIATION...(For the 06Z TAFS through 06Z Friday night) ISSUED AT 1253 AM EST FRI DEC 2 2016 Greatest concentration of cloud cover continues to remain north of Interstate 64, with only isolated to scattered clouds off to the south. Thus, VFR conditions look to remain in place with some stratus/stratocumulus around FL035-040 and some high cirrus. West/southwest winds will be light at less than 5 mph overnight before increasing to 5-10 knots Friday morning. These will diminish late Friday afternoon as they veer to the west/northwest. While a few clouds will remain around FL030 Friday evening/night, ceilings currently look to remain northeast of all sites. && .JKL WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM...GUSEMAN LONG TERM...JMW AVIATION...GUSEMAN

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