Area Forecast Discussion
Issued by NWS Jackson, KY
Issued by NWS Jackson, KY
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385 FXUS63 KJKL 101750 AFDJKL AREA FORECAST DISCUSSION National Weather Service Jackson KY 1250 PM EST Wed Dec 10 2025 .KEY MESSAGES... - Southwesterly wind gusts to between 30 and 35 mph are likely today, with locally higher gusts possible. Lake Wind Advisories are in effect for the Cave Run Lake and Lake Cumberland areas. - Snow showers are expected to produce spatially variable accumulations and localized travel impacts on tonight into Thursday morning. The greatest snowfall accumulation and impact will be above 1,500 feet ASL where a Winter Weather Advisory is currently in effect. - A clipper system is expected to produce more widespread winter precipitation on Thursday night into Friday morning. - A much colder than normal airmass is forecast to move into the region for this upcoming weekend. && .UPDATE... Issued at 1200 PM EST WED DEC 10 2025 Refreshed the forecast with latest temperature trends. As rain moves through the area temperatures will begin to cool. Once the cold front moves through, the area can see a more rapid drop off in temperatures. && .SHORT TERM...(This afternoon through Thursday evening) Issued at 827 AM EST WED DEC 10 2025 Quick update incorporated the latest observational data, keeping the temperature curve closely aligned with current trends. No major changes were made to the forecast. .LONG TERM...(Thursday night through Tuesday) Issued at 326 AM EST WED DEC 10 2025 The forecast period commences with the approach of an Alberta Clipper, tracking southeast toward the Commonwealth. At the onset of the forecast, this surface low is anticipated to be traversing the Central Plains. Analysis of forecast wind patterns and isotherms suggests that the warm front will remain south of the area, and as this system tracks from the Central Plains into the Ohio Valley, the forecast area will be situated within the precipitation shield north of the warm frontal boundary. Deterministic models and their ensemble members exhibit strong consensus regarding this systems trajectory across Missouri into Kentucky before its eventual northeastward ejection toward the Mid-Atlantic states. Given this path, the forecast area is expected to be bisected by the crucial 540 dam critical thickness line. Although the precise location of this boundary is subject to spatial and temporal shifts with subsequent model cycles, the overall trend indicates a north-to- south split in p-types across the CWA. The northern half of the CWA will likely experience accumulating snow, while a wintry mix is anticipated along the freezing line, transitioning to all rain further to the south. Providing exact accumulation values for the northern CWA is premature; however, the current forecast supports the potential need for Winter Weather Advisories from Thursday night through Friday morning to address the snow hazard. Following the departure of the first system, a weak surface high pressure is forecast to build back into the area. Model guidance maintains consistency regarding a subsequent Clipper system tracking through the central CONUS, reaching the CWAs vicinity by late Saturday night into Sunday. PoP is expected to increase Saturday afternoon; however, guidance for this second system is generally more northerly, suggesting the heaviest precipitation will be concentrated north of the CWA, primarily along and north of the Ohio River. Nonetheless, isolated light accumulations across the northern CWA cannot be entirely ruled out through Sunday morning. A cold surface high-pressure system will subsequently build into the region behind the departing low, ushering in some of the coldest temperatures of the season thus far through the early part of the succeeding week. A gradual warming trend is expected by the middle of next week, preceding the approach of another system toward the end of the forecast period. In summary, the period will be characterized by the passage of two distinct Clipper systems, one from Thursday night into Friday and the second Saturday night into Sunday. Both systems are forecast to bring periods of light snow accumulation. Strong surface high pressure will subsequently establish itself over the region on Sunday, driving cold temperatures down to the upper single digits and mid-teens. A notable warmup ahead of the next system is forecast to commence by Wednesday. && .AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon) ISSUED AT 1250 PM EST WED DEC 10 2025 A cold front moving in from the northwest continues to spread rain showers southeastward to the VA/KY border and ceilings have fallen to MVFR. Rain showers transition to snow this evening and overnight and a brief squall cannot be ruled out. Strong westerly winds at 10 to 15 kts with gusts of 20 to 30 kts slowly diminish this evening and overnight. Breif periods of IFR conditions can`t be ruled out with any snow squall type bands this evening. && .JKL WATCHES/WARNINGS/ADVISORIES... Lake Wind Advisory until 6 PM EST this evening for KYZ051-052- 060-079-080-083-084-106. Winter Weather Advisory from 7 PM this evening to 10 AM EST Thursday for KYZ086-087-110-113-115>117-120. Winter Weather Advisory until 10 AM EST Thursday for KYZ088-118. && $$ UPDATE...GINNICK SHORT TERM...GINNICK LONG TERM...VORST AVIATION...GINNICK