Your favorites:

Gillmore, Kentucky Weather Forecast Discussion

179
FXUS63 KJKL 251835
AFDJKL

AREA FORECAST DISCUSSION National Weather Service Jackson KY 235 PM EDT Thu Sep 25 2025

.KEY MESSAGES...

- A daily risk for isolated showers will then continue through the weekend, mainly near the Virginia and Tennessee border.

- The remnants of a tropical system may impact the area for the early part of next week bringing the potential for heavy rainfall.

&&

.SHORT TERM...(This evening through Friday night) Issued at 234 PM EDT THU SEP 25 2025

Surface analysis across the CONUS is slowly becoming quieter. The synoptic features, mentioned in previous discussions still remain, merely translated a few hundred miles to the east. Locally, a cold front, extending southwest from a surface low over western New York, has passed through the area and is currently impacting West Virginia and Virginia. However, some lingering showers are still developing across the area as the upper-level trough will provide sufficient dynamic forcing for precipitation development through the afternoon.

As mentioned above, the remainder of the day will be characterized by cold FROPA and forcing from a persistent upper-level trough. This trough has been affecting the eastern CONUS for the last several days. Through the day today and into Friday, the trough will pivot overhead but still maintain its positive tilt over the region. As upper-level forcing remains present, showers and isolated thunderstorms will develop through the afternoon before gradually tapering off toward the early overnight. With widespread cloud cover expected this afternoon, high temperatures will only reach the mid- 70s, but where there are breaks in the clouds, a few locations may reach the upper 70s. Cloud cover is expected to remain overhead through the overnight, leading to a mostly mild night with lows only falling into the mid-50s to lower 60s with areas of patchy dense fog.

Friday through the rest of the period will bring similar temperatures, as highs will climb into the mid to upper 70s. However, the highlight from Friday through Saturday will be the cutting off of the trough to form a closed cut-off circulation. Morning and early afternoon model suites consistently show the H5 trough being cut off from the mean flow, with the resultant closed circulation centered over the Central Appalachians. As this occurs, the chances for afternoon showers and thunderstorms will be focused over the southeastern portions of Kentucky. Forecast streamlines of 1000 hPa to 500 hPa RH show the best moisture fetch across those areas as southerly flow is drawing up Gulf moisture. Conversely, northerly flow around the closed circulation will advect drier air into the northwestern portions of the CWA, limiting the potential for afternoon convection in those areas. Any shower or thunderstorm that does develop will quickly taper off toward sunset. Similar to Thursday night, areas of patchy dense fog could develop again for Friday night into Saturday, with overnight lows falling into the mid to upper 50s.

.LONG TERM...(Saturday through Thursday) Issued at 234 PM EDT THU SEP 25 2025

For Saturday, a positive upper trough axis will continue to move slowly into the central and southern Appalachians with the frontal boundary moving well southeast of the area. However, an inverted surface trough will remain across the far eastern sections of east Kentucky.

Shear axis and associated Q-Vector forcing will help keep chances of showers especially areas near the KY/VA and KY/TN state-lines. Ensemble and latest deterministic models show CAPE values of 500 near the KY/VA and KY/TN stateline. These areas will have the greatest chance of scattered showers and possibly a thunderstorm in the afternoon/early evening.

For Sunday, ensemble cluster analysis shows upper trough axis moving east of the area with northerly flow aloft drying the area-mass over the region. More sunshine and mostly dry conditions. Only the far eastern counties have a slight chance of showers.

For early next week (especially Monday and Tuesday), upper trough over the eastern United States becomes a cut-off low over the southeast United States. The evolution of this upper trough/low will play a major role in how the tropical systems affect the central and southern Appalachians. Confidence is low of tropical track and impacts over east Kentucky.

For Wednesday into Thursday of next week, a lot of uncertainties and confidence low in regard to the phasing of the tropical system and remains of weakening upper low over the southeast United States and Appalachians. The ensemble cluster analysis and deterministic models differ a good deal. There is a potential of a good deal of sub- tropical moisture remaining over the area keeping shower activity and cloudy sky. Again, instability remains quite limited at best thus thunder chances are low.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon) ISSUED AT 131 PM EDT THU SEP 25 2025

Terminals are slowly improving across the area this afternoon as a break in the clouds can be seen on satellite. Presently all TAF sites are a combination of MVFR and VFR; however, as a cold front approaches, lowering CIGS will bring terminals back into categorical MVFR/IFR through the remainder of the period. As the front approaches, showers and isolated thunderstorms can be expected through roughly 00Z/Friday before frontal passage causes showers/storms to dissipate. Post-frontal stratus is forecast to develop overnight causing all TAFs to fall into IFR and even possibly LIFR through the overnight and into the early morning. Lastly, light and variable winds are forecast through the period but a rouge stronger storm could produce gusty and erratic winds this afternoon.

&&

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

&&

$$

SHORT TERM...VORST LONG TERM...DH AVIATION...VORST

NWS JKL Office Area Forecast Discussion

WeatherForYou.com, LLC is not responsible for any damages or problems caused by this service. Current weather conditions are obtained from the closest government operated station, a personal station contributing to the PWSweather.com network or from the Meteorological Assimilation Data Ingest System (MADIS). Some weather information is powered by XWeather. WeatherForYou.com, NOAA, AerisWeather and their data providers disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use or inability to use the data. Like all things, this site belongs to Jesus Christ ... He just trusts us to maintain it. If you have any questions or comments please use the suggestion box.

Copyright © 1999 - 2025, WeatherForYou.com LLC. All rights reserved.