textproduct: Jackson

KEY MESSAGES

- Noticeably less humid air prevails through mid-week, with below normal morning low temperatures.

- Temperatures and humidity increase late Wednesday and into Thursday ahead of the next cold front, leading to a potential for a few thunderstorms.

UPDATE

Issued at 720 AM EDT TUE AUG 25 2026

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. The valley fog is thick and extensive enough that and SPS has been issued to address it. Otherwise, these minor adjustments have been sent to the NDFD and web servers along with a freshening of the zones.

LONG TERM

(Wednesday night through Monday) Issued at 345 AM EDT TUE AUG 25 2026

The most current model data continues to suggest the increasing influence of the southern upper-level ridge into Kentucky later in the week and over the weekend. Ahead of this, though, we still see the potential for a few showers and thunderstorms owing to a cold front pressing through eastern Kentucky from Thursday into Friday.

The previous long term discussion follows:

Thankfully the extended portion of the forecast seems to be fairly tame. The only chances for rain will come towards the beginning of the forecast period starting Wednesday night, peaking on Thursday, and winding down again Thursday night. This will be the result of a passing weak cold front, which is set to move though the CWA during the day Thursday. However, don't expect widespread coverage of precipitation, or even a real impact on the temperature. Severe potential is also quite low without strong forcing, though still could see some rumbles of thunder. An upper level troughing pattern will be in place aloft, but our position within the trough will be that of NW flow, transporting cooler and drier air aloft into the region from Canada. Besides the passing cold front, the remainder of the time, high pressure should dominate at the surface. The result will be generally pleasant weather, with highs in the mid 80s and lows in the mid 60s. Things do warm up a bit towards the end of the period, with upper 80s and lower 90s currently forecast, as the surface high pressure begins to shift east allowing for return southerly flow and WAA to take hold.

AVIATION

(For the 12Z TAFS through 12Z Wednesday morning) ISSUED AT 740 AM EDT TUE AUG 25 2026

Fog is affecting most of the deeper valleys this morning, resulting in localized IFR or worse conditions. At this point, the only TAF site that could possibly be affected is KSME for a brief amount of time through 14Z. Otherwise, VFR conditions will prevail through the period along with light and variable winds.

JKL WATCHES/WARNINGS/ADVISORIES

None.