Area Forecast Discussion
Issued by NWS Paducah, KY
Issued by NWS Paducah, KY
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612 FXUS63 KPAH 151815 AFDPAH Area Forecast Discussion National Weather Service Paducah KY 1215 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 /18Z TAFS THROUGH 18Z SUNDAY/... Issued at 1112 AM CST Sat Nov 15 2025 Breezy conditions will prevail this afternoon with gusts between 20-25 kts out of the southwest. An axis of MVFR cigs is building NE across the Missouri Bootheel, and the outer extent may clip KPAH/KCGI over the next few hours. Although confidence is low, cannot rule out a brief period of MVFR cigs with a 20% probability. Otherwise, FEW-SCT mid to high level clouds are progged across the rest of the terminals as a cold front approaches this evening. An isolated light rain shower cannot be ruled out at KEVV & KOWB, but the probability is less than 30% to include TAF mention. Winds tonight will shift west to northwest with fropa between 5-10 kts into the day Sunday. Skies will turn mostly clear with only a few high level clouds mainly across the north. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && $$ DISCUSSION...DW AVIATION...DW