410 
FXUS63 KJKL 131155 AAA
AFDJKL

AREA FORECAST DISCUSSION...UPDATED
National Weather Service Jackson KY
755 AM EDT Mon Oct 13 2025

.KEY MESSAGES...

- Dry, seasonably pleasant weather continues across eastern
  Kentucky through the work week.

- Temperatures will remain near or just above climatological
  averages for the duration of the forecast period. 

- While confidence in specific details remains low, the next
  chance of showers/storms will come next weekend. 

&&

.UPDATE...
Issued at 725 AM EDT MON OCT 13 2025

No significant changes were made to the forecast with mainly just
the inclusion of the latest obs and trends for the T/Td/Sky grids.
These minor adjustments have been sent to the NDFD and web
servers along with a freshening of the zones.

&&

.SHORT TERM...(Today through Tuesday)
Issued at 435 AM EDT MON OCT 13 2025

08Z sfc analysis shows high pressure over the Ohio Valley
continuing to dominate the weather for Kentucky. There remains a 
significant storm off the Southeast Coast that is sending some 
high clouds into the eastern parts of the area drifting west and
dissipating. These clouds did slow down the radiational cooling a
bit in the east but the rest of the area saw an enhanced ridge to
valley temperature difference along with the development of fog 
in the river valleys. Currently, temperatures range from the mid 
50s on the hills to the mid 40s in the western low spots.
Meanwhile, amid light and variable winds, dewpoints are generally
in the mid 40s west to the lower 50s in the east - under the
clouds. 

The models, and their individual ensemble suites, continue to be
in excellent agreement aloft through the short term portion of 
the forecast. They all depict a large 5h trough consolidating to 
the east of Kentucky with its core of mid level energy. While 
this occurs, ridging will nose into Kentucky from the southwest 
still keeping the pattern quiet and benign over this part of the 
state through Tuesday evening. The models' persistent small 
spread supported the NBM as the starting point of the grids with 
minimal adjustments needed - mainly just terrain driven
enhancements to the hourly temperatures at night.

Sensible weather features seasonably warm temperatures during the
days with dry conditions into the new work week. Any lingering 
high clouds from the sfc cyclone well east of Kentucky will likely
not interfere with the dry air's ability to warm each day. Typical
valley fog can be expected late at night (and early each morning)
along with modest ridge to valley temperature differences.  

The changes to the NBM starting point were primarily focused on
elevation/terrain differences in the temperatures at night along 
with some extra drying applied to the dewpoints and RH during the 
afternoons. 

.LONG TERM...(Tuesday night through Sunday)
Issued at 410 AM EDT MON OCT 13 2025

Once again the main changes to the extended forecast this morning
were to enhance the terrain based differences of a ridge to 
valley split to the temperatures each night through the work week, 
along with a touch of extra drying each afternoon from the mix 
down of lower dewpoints aloft. PoPs still appear to be quite 
limited during the upcoming week but there is increasing 
confidence in showers and/or storms returning to the area for 
next weekend along with a potential for heavy rain due to a slow
moving cold front dropping into the state.

The previous long term discussion follows:

Ridging prevails through the end of the week, with the exception 
of a brief period of northwesterly flow aloft allowing for a 
backdoor cold front to move south and then southwesterly across 
eastern Kentucky during the day Wednesday. This will bring a 
cooldown, especially for overnight lows Thursday night, as cold 
advection diminishes and excellent radiational cooling develops. 
This will allow for lows in some of our more sheltered valleys to 
drop into the mid to upper 30s, which will also mean the chance 
for some patchy frost, particularly in our northeastern counties. 

Warm advection increases Friday into the weekend ahead of another 
potentially stronger disturbance that looks to impact the area next 
weekend. This system looks to have pretty good jet support, with the 
operational GFS and ECMWF models depicting different solutions 
though still roughly in line with the global model ensemble 
consensus. Possible impacts include strong to severe storms upstream 
over the Mississippi and/or Lower Ohio Valleys at some point, 
with more local downstream impacts still to be determined. 

&&

.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
ISSUED AT 755 AM EDT MON OCT 13 2025

Valley fog is in place and locally dense at 12Z. All fog will 
dissipate this morning, leaving VFR conditions through late
tonight when fog may again become an issue at some of the
terminals. Winds will be light and variable through the period. 

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

UPDATE...GREIF
SHORT TERM...GREIF
LONG TERM...CMC/GREIF
AVIATION...GREIF