Area Forecast Discussion
Issued by NWS Jackson, KY

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS63 KJKL 200759 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY 359 AM EDT Tue Mar 20 2018 .SHORT TERM...
-- Changed Discussion --
(Today through Wednesday) Issued at 359 AM EDT TUE MAR 20 2018 The latest surface map features broad surface low pressure situated from eastern Kentucky down to South Carolina. Aloft, a short wave trough is moving nearly along the Ohio River, with a secondary trough moving across the Plains. Widespread showers have lifted north out of our area, with dry slotting working in from the southwest, keeping showers limited in areal coverage. Expect a general lull in the action through early this afternoon, as the short wave trough continues to move off to our northeast and east, leaving us in temporary short wave ridging. The next wave will move in from the west. This wave will cutoff and help to deepen surface low pressure that will be developing just off to our east and southeast. Wrap around moisture will fill in across the area late today and especially tonight into Wednesday. Winds will become northwesterly, with the column gradually cooling off enough to allow for snow. Will be leaving much unchanged from the previous forecast, although, given the generally lighter precipitation rates, have allowed for a bit more disparity between the valley accumulations and ridgetop amounts in some areas. Most of the valleys will range in the 1 to 2 inch range, while ridges will be in the 2 to 3 inch range. The exception to this will be our southeast terrain, with the higher elevations along the Pine and Black Mountain chains seeing 3 to 5 inches by Wednesday evening. Temperatures will be averaging well below normal through the short term, and have favored the cooler NAM MOS numbers, especially for tonight and Wednesday. Highs today will range from the lower 40s in the northwest to the mid 50s in the far southeast. Readings will drop down into the lower 30s tonight, with readings likely not moving much on Wednesday, given the ongoing precipitation and cold air advection. Highs will be in the upper 30s for most locations, some 20 degrees below the normal highs for the latter half of March. .LONG TERM...(Wednesday night through Monday) Issued at 400 AM EDT TUE MAR 20 2018 The long term forecast discussion will follow shortly.
-- End Changed Discussion --
&& .AVIATION...(For the 06Z TAFS through 06Z Tuesday night) ISSUED AT 201 AM EDT TUE MAR 20 2018 Showers will be diminishing across the area through the overnight, with MVFR/IFR stratus building in across the area. Ceilings will lower to more of a solid IFR deck through the night for most locations. Ceilings may raise up through the day to MVFR, before dipping down to IFR once again, as precipitation fills in across the area later in the afternoon and this evening. As colder air moves in towards the end of the period, snow will begin to mix in with the rain. Winds will remain variable at 5 to 10 kts, with locations north of I-64 seeing some gusts of 15 to 20 kts at times overnight. Eventually, winds will become west and northwest across the entire area by later this afternoon. && .JKL WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory from 11 PM this evening to 8 PM EDT Wednesday for KYZ044-050>052-058>060-068-069. Winter Weather Advisory from 2 AM to 8 PM EDT Wednesday for KYZ079-080-083>086-104-106>117-119. Winter Weather Advisory from 10 PM this evening to 8 PM EDT Wednesday for KYZ087-088-118-120. && $$ SHORT TERM...GEOGERIAN LONG TERM...CGAL AVIATION...GEOGERIAN is the U.S. government's official web portal to all federal, state and local government web resources and services.