Area Forecast Discussion
Issued by NWS Jackson, KY
Issued by NWS Jackson, KY
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315 FXUS63 KJKL 291904 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY 204 PM EST Sat Nov 29 2025 .KEY MESSAGES... - A round of light precipitation, mainly rain, is expected tonight into Sunday. - A more significant precip event is expected Monday night and Tuesday, with a little bit better potential for wintery precipitation, especially north of the Mountain Parkway. && .SHORT TERM...(This evening through Sunday night) Issued at 204 PM EST SAT NOV 29 2025 Guidance remains in reasonable agreement in the short term period. The latest surface analysis shows high pressure off toward the Virginia coast and low pressure across the Plains deepening as it pushes east into the Midwest. There is good agreement that this feature pushes into the Great Lakes later tonight. Meanwhile, a jet streak will push into the Plains and Midwest this evening bring a little more upper level lift. This coupled with subtle height falls due to associated the mid-level shortwave will aid in some lift across the area. A 850mb low level jet will crank up in response to this system. The focus of the low level jet will be more to the north across the northern portions of the Ohio Valley where the apex of this jet will be located but will help to moisten up the column to allow for some light precipitation tonight. Overall this will come in the form of rain, but a brief period of rain/snow mix will be possible for a short time this evening. This idea was captured well by the NBM and HREF weather type probabilities. Overall given the warmer afternoon highs, marginal temperatures, and light QPF this will not be much of an issue. That said, overnight lows will be in the mid to upper 30s in most locations. The attendant cold front will cross eastern Kentucky Sunday morning into early Sunday afternoon. This could have some rain showers associated with it and maybe even some gustier winds in the 15-20 mph range. The biggest change will be the failing temperatures through the day, with most experiencing the warmest temperatures on Sunday morning. The temperatures will then fall into the mid to upper 30s for most locations, with a few falling into the lower 30s by Sunday afternoon. Sunday night we will see a mix of clouds, with some forecast sounding guidance showing the potential for some post frontal stratus to push into the area. This will lead to most locations staying in the low to mid 20s and not any big splits from ridges to valleys. If this trend continues sky cover may need to be increased to better match this potential. .LONG TERM...(Monday through Saturday) Issued at 200 PM EST SAT NOV 29 2025 The period begins Monday morning with dry weather as surface high pressure retreats to the north and east during the day. Attention then quickly turns to the next system approaching from the west. Surface cyclogenesis will occur across the Deep South and generally track just inland across the Southeast CONUS before moving up the East Coast. With a southerly track, we will remain in colder air and will have a higher threat of wintery precip, especially in our northern counties. At this point it looks like a nuisance type system, but there will likely be continued fluctuations to the outlook. The highest probability (50 to 60 percent chance) of significant snow accumulations will be mainly along and north of Interstate 64 for the Monday night-Tuesday time period, according to the operational NBM valid early afternoon Saturday, with values decreasing to 20 percent roughly along a Mount Vernon-Jackson- Paintsville line. South of Interstate 64, the best chance of seeing snow seems to be during the morning and early afternoon Tuesday as the column cools from the top down with the arrival of the upper trough and before precipitation ends from the west. Once it passes, dry weather looks to occur Wednesday and Thursday, with another system arriving to end the week Friday into Friday night. Though models as of now show this system more disorganized than the early week system, most models do show overrunning precip as far north as KY, but with an atmosphere probably warm enough for rain. && .AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon) ISSUED AT 1220 PM EST SAT NOV 29 2025 We are starting the period VFR under the influence of southeast flow and surface high pressure off to the east. The remainder of the afternoon into this evening we will continue to see increasing clouds and these will lower overtime into the MVFR level or lower at times. A storm system will move across the Ohio Valley and will bring light rain into the region tonight. Overall not expecting too much in the way of lower Vis right now given the light nature, but did add in a Prob30 for some high-end MVFR Vis not being out of the question. We will see a period of LLWS tonight given the lower wind speeds at the surface. The winds will mostly be 10 knots of less tonight and becoming more southwest by Sunday morning. We could see a bump up in gust late morning into early afternoon Sunday, with the arrival of the front in the 15 to 20 knot range. && .JKL WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...DJ LONG TERM...CMC AVIATION...DJ