FXUS63 KJKL 191009 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY Issued by National Weather Service Wilmington OH 609 AM EDT Tue Aug 19 2025 .KEY MESSAGES... - Following low end rain chances Tuesday night, chances will peak on Wednesday and also linger through the remainder of the week and into the weekend. - Expect temperatures to return to near normal Wednesday, with even cooler temperatures in store by early next week. && .SHORT TERM...(Today through Wednesday) Issued at 151 AM EDT TUE AUG 19 2025 We have one more day of really hot weather in store before temperatures start to ease off tomorrow. There are very low rain chances today. In fact, PoPs are too low to include mention in the public forecast, but we also cannot completely rule out an isolated shower or two popping up during the afternoon, especially at higher elevations near the KY/VA border. Rain chances will start to increase tonight as an upper trough replaces the ridging that we've been underneath, and also a surface boundary comes together along the Ohio Valley by this evening. Rain chances will increase considerably on Wednesday as the southeastward-moving surface boundary interacts with what promises to be a very unstable environment. Indeed, by 18Z the boundary should be all the way through eastern KY, so this means that any active weather that does develop during the afternoon tomorrow will likely be post-frontal. The region remains under a marginal risk of excessive rainfall for tomorrow/tomorrow night, so a few of the cells that do develop may produce heavy rainfall. But overall QPF values from now through Wednesday (36-hour totals) remain under 1/4" across the bulk of eastern KY. .LONG TERM...(Wednesday night through Monday) Issued at 242 AM EDT TUE AUG 19 2025 Lower rain and storm chances remain in the forecast for Thursday and Friday as there will still be plenty of instability and moisture in place across eastern KY. By week's end, the aforementioned surface boundary appears to retrograde and build back into the local area, thereby bringing increased rain and storm chances on Saturday. This feature will finally come through as a cold front on Sunday or Sunday night while a weak upper trough accompanies the fropa. So look for a significant air mass change by the first of next week as rain chances drop off and autumn-like temperatures replace the heat and humidity. && .AVIATION...(For the 12Z TAFS through 12Z Wednesday morning) ISSUED AT 610 AM EDT TUE AUG 19 2025 High pressure remains the dominant weather feature both aloft and at the surface. BR/FG and the associated VSBY reductions will improve rapidly into the beginning of the TAF period. A few VFR Cu will be possible this afternoon, but mainly dry conditions are favored through the daytime. Some ISO SHRA/TSRA may work into the area toward/past 06z, so have added a PROB30 for W/NW sites for now to account for this potential. Light/VRB winds are expected through the period. && .JKL WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...ROSE LONG TERM...ROSE AVIATION...ILN