Area Forecast Discussion
Issued by NWS Jackson, KY

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375 FXUS63 KJKL 300736 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY 336 AM EDT Tue Apr 30 2024 .KEY MESSAGES...
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- Showers today, perhaps with a rumble of thunder. Not as warm. - Dry and trending warmer midweek, with near record highs on Thursday. - Unsettled weather returns for Friday and lingers through the weekend.
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&& .SHORT TERM...
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(Today through Wednesday) Issued at 335 AM EDT TUE APR 30 2024 Rain showers have arrived to the far southwest counties of the forecast area as of this early-morning writing. Rain will continue to progress slowly NNE through the day. I`ve removed the thunder chance early this morning as instability is best over northern Alabama, where thunder prevails at this time. There is a subtle resurgence in instability by midday, but this varies greatly from model to model. I say subtle because there will be plenty of clouds to overcome. Lapse rates are generally be poor as well. Additionally, in the wake of this cold front, a forcing mechanism for any late-afternoon redevelopment is absent. Therefore, have generally capped the thunder at "chance" today with dry weather prevailing from west to east as this line of rain exits. Rainfall today will generally total around 0.25" to as much as 0.50". Clearing skies tonight with light wind. Add to the mix the fresh rainfall and fog is likely overnight in the valleys. 500-mb heights will be on the rise Wednesday due in part to some deepening of a trough over the Northern Rockies. This will propel our highs back into the 80s following the seasonably cool temperatures of Tuesday. .LONG TERM...(Wednesday night through Monday) Issued at 335 AM EDT TUE APR 30 2024 Long term discussion to come near 4am.
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&& .AVIATION...(For the 06Z TAFS through 06Z Tuesday night) ISSUED AT 146 AM EDT TUE APR 30 2024 VFR conditions will give way to MVFR and fuel-alternate conditions after daybreak Tuesday. This, as a cold front slowly mores through. Rain is ongoing across central KY and TN, with thunder confined to TN. As a result, I have removed the TS mention from the TAFs. It is uncertain whether or not isolated thunderstorms redevelop late this afternoon and is something that will need to be explored for the next issuance. However, pattern recognition amid a very slow moving system suggests recovery time will be limited, implying a nil TS threat in the afternoon. Decreasing clouds and light wind to end the TAFs. && .JKL WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM...BROWN LONG TERM...GEERTSON AVIATION...BROWN