textproduct: Jackson

KEY MESSAGES

- A progressive cold front brings showers and numerous thunderstorms to the area on Friday, with a threat for strong storms with gusty winds and locally heavy rainfall.

- High pressure ushers in a brief break of cooler and drier air for Saturday, before unsettled weather and rain chances return Sunday through early next week.

UPDATE

Issued at 730 PM EDT THU JUN 11 2026

23Z sfc analysis shows high pressure to the southeast effectively in control of the weather over eastern Kentucky. To the northwest, a approaching cold front is pushing a cluster of thunderstorms steadily toward the area but these not expected to impact anything here until closer toward dawn - if at all. The nearby high is helping to clear the sky and settling the winds. Currently, temperatures are running in the very warm mid to upper 80s. Meanwhile, amid southwest winds of 5 to 10 mph with some gusts up to 15 mph, dewpoints are generally in the quite humid upper 60s to lower 70s. This level of moisture in the air resulted in heat indices approaching 100 degrees in a few spots this afternoon. Now, though, conditions are improving with the approaching sunset. Have updated the forecast mainly to add in the latest obs and trends for the T/Td/Sky grids. Did also tweak the PoPs and thunder chances through dawn per the latest CAMs guidance. These minor adjustments have been sent to the NDFD and web servers along with a freshening of the SAFs and zones.

LONG TERM

(Saturday through Thursday) Issued at 155 PM EDT THU JUN 11 2026

An upper low spinning over Ontario during the short term period will persist there through most of the long term period. Short wave troughs rotating around it will be the main influence on our weather. One of these will be passing over the Great Lakes region on Sunday, working to deepen overall troughing over the eastern CONUS and supporting a cold front which will move through the JKL forecast area from northwest to southeast on Sunday afternoon and evening. Due to the deepening trough, there will be a bit stronger flow aloft and more shear (although nothing phenomenal) than during preceding recent rounds of thunderstorms. Should there be enough instability, some strong storms won't be ruled out on Sunday, but the degree of instability remains uncertain. Once the front and its inclement weather move through, noticeably less humid air will arrive Sunday night and carry into the workweek.

Multiple additional waves will rotate through the eastern CONUS trough Tuesday through Thursday. However, there is much less model agreement on their timing and strength. That being the case, forecast confidence for precipitation drops off considerably after Monday. There is a general consensus that some semblance of an eastern CONUS trough will persist, though, which would prevent any return to oppressive heat and humidity.

AVIATION

(For the 00Z TAFS through 00Z Friday evening) ISSUED AT 805 PM EDT THU JUN 11 2026

Weak surface high pressure will keep the area dry through the night. Clearing skies this evening and early overnight will give way to increasing and lowering clouds ahead of a cold front towards dawn as it dives southeast into this part of the state just after 12Z/Friday. PROB30s are in place to account for pulse thunderstorm development ahead of the front through at least the start of the afternoon for all terminals on Friday. Any thunderstorm that develops at or near a TAF site could bring brief reduction in category; as well as, gusty and erratic outflow winds. Southwesterly winds are expected throughout the night, but mainly below 10 kts before picking up again Friday morning ahead of the approaching front. For Friday winds will be out of the southwest sustained at around 10 kts with gusts to 15 kts.

JKL WATCHES/WARNINGS/ADVISORIES

None.