textproduct: Jackson

KEY MESSAGES

- It will continue to be hot through Saturday, with the hottest conditions are expected Friday with widespread maximum heat indices in the lower to middle 100s.

- Showers and thunderstorms are possible at times from Friday through early next week.

LONG TERM

(Saturday through Thursday) Issued at 2:20 PM EDT THU SEP 3 2026

Saturday will see troughing associated with an upper low over the St Lawrence Valley/Quebec, extending into the ne conus to the Mid Atlantic. By late Friday night into Saturday morning, the aforementioned cold front will sag s through much or all of ern Kentucky, providing another focus for showers and storms. There is still significant model disagreement regarding the timing and extent of convective coverage associated with this frontal passage, resulting in NBM PoPs likely being a bit underdone at least at times compared to true rain chances, although uncertainty remains too high to refine these PoPs at this time. Adding to this uncertainty, some deterministic guidance depicts MCS activity or its remnants diving se out of the Midwest during the day Saturday, following the periphery of the ridge. Although rain appears likely at some point on Saturday, the details continue to remain unclear at this time. The NBM continues to keep pops generally low, maximized mainly in the 20-50% range, to account for this. Meanwhile, nly postfrontal winds will keep highs in the upper 80s on Saturday afternoon, with low 90s near the KY/TN line.

Rain chances look lower from Sunday onward as the upper level ridge begins to expand ewd. With surface high pressure building ne of the forecast area, nely winds will keep Sunday's temperatures cooler than at the start of the period (but still quite warm). Dewpoints look to be modestly lower as well (in the 60s rather than the 70s), and this drier pattern will continue through the end of the period. Even so, Labor Day looks to be quite warm, with above average temperatures in the upper 80s expected across the area. Other than this, the weather will be quite pleasant and sunny, with the exception of an isolated diurnally driven thunderstorm in s or se.

AVIATION

(For the 18Z TAFS through 18Z Friday afternoon) ISSUED AT 1239 PM EDT THU SEP 3 2026 by NWS Wilmington, Ohio

Few cu will result in VFR conditions across eastern KY through the next 24 hours. Did not add a line to remove sct fair wx cu in favor of clear skies and light wind.

JKL WATCHES/WARNINGS/ADVISORIES

Heat Advisory until 8 PM EDT Friday for KYZ044-050>052-058>060- 068-069-079-080-083>088-104-106>120.