172 FXUS63 KPAH 080534 AFDPAHArea Forecast Discussion National Weather Service Paducah KY 1234 AM CDT Wed Oct 8 2025
.KEY MESSAGES...
- A return to dry weather and seasonally cooler temperatures will finish out the work week.
- The coolest night will be Thursday night, when calm conditions may see temperatures dip into the upper 30s near Mount Vernon, IL, allowing for the season`s first potential appearance of patchy frost.
- A weekend warmup ensues, with 80F highs reappearing by the start of the new week.
&&
.DISCUSSION... Issued at 1227 PM CDT Tue Oct 7 2025
With the surface frontal boundary completing passage, the heavy rain threat winds down. Radar estimates were aligned closely with ground truth to on-ground spotter reports, with the heaviest axis of a broad swath of generally 3-5" rainfall amounts occurring along and either side of a line from near Eddyville, IL to Rockport, IN. Much of this rain was spread out over an 18+ hours period, resulting in minor prone area, low land, and street flooding.
Recovery is underway now, but a close examination of time/height cross sections indicates clouds may redevelop/linger, potentially a light shower, until the H8 front completes its several hours lag passage. Afterward, the cooler/drier air overtakes the column, and a nice clear-out occurs. Tdd`s subside with the drop, except in isolated locales like MVN, where the drop is not as steep and suggests some MIFG may be in the offering pre-daybreak tmrw morning.
The remainder of the work week looks spectacular as surface high pressure works underneath rising upper heights on its translation from the Great Lakes toward the Ohio Valley. Its north to northeast anti-cyclone trajectory flow yields and reinforces seasonally cooler temperatures generally in the 40s/50s for lows, and upper 60s and lower half 70s for highs. This might include some diurnally assisted NE gustiness during the day tmrw, too, that makes it feel a tad chillier even with sunshine. The coolest night will be Thursday night, when clear skies and calm winds might even produce some daybreak upper 30s in our far northern counties, in/around Mt Vernon, IL; this offers our best chance potential for the first appearance of patchy frost this season in our CWA, but due to its brevity, it`s a low chance mention.
Tropical interplay makes for an interesting synoptic modeling in the extended portion of the forecast, but the ensemble solutions stay steady-as-she goes for us in suggesting a continued dry but moderating trend over the weekend into early next week. Some 80F degree highs might even appear by the start of the new week.
&&
.AVIATION /06Z TAFS THROUGH 06Z THURSDAY/... Issued at 1231 AM CDT Wed Oct 8 2025
The MVFR cloud deck is moving through the western portions of the area and sliding south over the coming hours. Behind this deck skies are clear and will remain clear tomorrow. Winds are light overnight generally out of the north and northeast. Winds will pick up again tomorrow during the day at around 5-10 kts gusting occasionally to around 20 kts out of the north and northeast. After the cloud deck clears out from MVN there may be some shallow fog development, but winds look to stay slightly elevated and might mitigate this development.
&&
.PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None.
&&
$$
DISCUSSION... AVIATION...HICKFORD
NWS PAH Office Area Forecast Discussion