Area Forecast Discussion
Issued by NWS Paducah, KY
Issued by NWS Paducah, KY
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934 FXUS63 KPAH 152355 AFDPAH Area Forecast Discussion National Weather Service Paducah KY 555 PM CST Sat Nov 15 2025 .KEY MESSAGES... - Wind gusts between 20 to 30 mph this afternoon will begin to diminish in the evening. An isolated sprinkle or shower cannot be ruled out mainly across the far east through the first half of tonight. - Temperatures will be more seasonable on Sunday to end the weekend, followed by another period of above normal temperatures Tuesday through Friday. - Daily shower and isolated thunderstorm chances return to the forecast late Monday into Monday night and continue through the entire week. Total rainfall between 1 to 3 inches is expected by Friday. && .DISCUSSION... Issued at 1215 PM CST Sat Nov 15 2025 Gradient winds will prevail this afternoon ahead of a sfc cold front that will transverse across the FA tonight. While the front lacks moisture, model soundings on a few of the CAMs including the ARW and 3km NAM are hinting at subtle moisture to squeeze out an isolated sprinkle or light rain shower across the far east. Added 15 to 20 percent PoPs to account for this as any pcpn would be brief and not amount to much. Behind the front, temperatures turn more seasonable on Sunday as a ridge of high pressure builds into the FA by nightfall, supporting more tranquil conditions. Did run with the NBM 10th percentile for afternoon dewpoints as mixing in the boundary layer will tap into a deep dry layer around 900-850 mb. This translates to min RH values around 20-25%. In fact, some of the CAMs are even more robust with mixing dewpoints down well into teens. By Monday, 500 mb energy will eject across the Plains, eventually lifting a sfc warm front north late Monday into Monday night with scattered showers and isolated thunderstorms. The instability is modest at best, but cold air aloft will cause mid-level lapse rates to steepen to 7.0 C/km with sfc-6km shear of 40-45 kts. A few stronger will be possible with small hail being the main concern. The aforementioned frontal boundary remains in the vicinity Tuesday into Wednesday with pcpn chances lingering. The EPS is more robust with instability on Wednesday compared to the GEFS, but it is contingent on the placement of the boundary. Temperatures trend back above normal as the flow aloft turns more zonal. An amplified subtropical jet combined with a longwave trough will cause sfc low pressure to develop Wednesday night into Thursday over the Plains, bringing a period of heavier rainfall. There is still some uncertainty on the timing, but the GEFS and EPS both support QPF amounts between 1 to 3 inches with a high probability of receiving at least 1 inch. While the deterministic runs continue to remain highly variable with QPF, the ensembles have remained more persistent with the potential for heavy rainfall with the NBM being the most robust. Due to the long duration, flooding is not much of a concern with only 2 to 5 year return intervals for PWATs between 1.25 to 1.50 inches. It will likely not be until next weekend when drier weather returns along with more seasonable temperatures as a cold front moves through. && .AVIATION /00Z TAFS THROUGH 00Z MONDAY/... Issued at 538 PM CST Sat Nov 15 2025 A cold frontal passage will bring a wind shift to the terminals this evening. Winds will shift toward the northwest behind the front with continued northwesterly winds through the day tomorrow with speeds of 5-10 kts. Few to scattered mid and high level clouds will be possible. VFR conditions will persist through tomorrow. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && $$ DISCUSSION...DW AVIATION...AD