textproduct: Louisville

KEY MESSAGES

* Dry and sunny weather expected today, with temperatures warming into the 80s.

* Dry weather continues for the weekend and into next week. Temperatures begin to increase over the weekend and especially into next week, with low to mid-90s possible.

SHORT TERM /THROUGH TONIGHT/

Issued at 250 AM EDT Fri Aug 28 2026

Early morning satellite imagery shows some patchy fog developing across the region, which is due to lingering low level moisture, clear skycover, and calm winds. Patchy fog this morning could be dense in some spots, leading to rapid changes in visibility. Conditions will improve shortly after sunrise.

For the rest of today, dry and sunny weather is forecast as sfc high pressure centers over the Ohio Valley. Light sfc winds will generally be from the N-NE today, with temps warming into the mid to upper 80s. Relatively comfortable dewpoints in the 60s this afternoon will prevent heat indices from deviating to far from the ambient temps. Dry weather continues tonight, with mostly clear skycover and temps dropping into the low 60s.

LONG TERM /SATURDAY THROUGH THURSDAY/

Issued at 250 AM EDT Fri Aug 28 2026

===== Weekend Outlook =====

The upper trough axis will shift east over the weekend, allowing upstream ridging to begin to slightly amplify and pivot across the middle of the US. At the sfc, high pressure will spread out across the eastern US, potentially backbuilding to the west on Sunday. This would result in better WAA on Sunday with deeper SW flow. We'll remain dry and sunny over the weekend, with highs in the upper 80s on Saturday and potentially lower 90s by Sunday.

===== Heating Up Next Week =====

We'll remain under broad upper level ridging through much of next week, with any shortwave activity riding over the ridge and across southern Canada. This pattern will keep us dry through at least Tuesday night, but possibly through Wednesday too. Sfc high pressure will remain in our east, resulting in a persistent WAA regime underneath the upper ridge. We'll likely see temps climb back to the 90s for next week, but just how hot we get remains uncertain. The GEFS mean ensemble does indicate potential for reaching the mid 90s by Wednesday, with a similar indication from the EPS. Combining the global ensembles, the LREF mean ensemble suggests mid 90s for the middle part of next week, especially Wednesday and Thursday. LREF probability of exceeding 95F is only 25% in Tuesday, but climbs to roughly 40% for Wednesday, and around 50% for Thursday. Fortunately, our dewpoints will be in the upper 60s to low 70s next week, which will help keep our heat indices below 105F for most.

There is high confidence we'll have above normal temps next week, but confidence is low on how hot temps could get and the resulting heat indices.

AVIATION /12Z TAFS THROUGH 18Z SATURDAY/

Issued at 656 AM EDT Fri Aug 28 2026

Latest surface analysis reveals expansive high pressure across the region while current satellite shows mostly clear skies. Regional observations do show a few isolated instances of fog, mainly affecting HNB, LEX, and RGA. Expect any fog to burn off quickly after sunrise with VFR conditions prevailing throughout the remainder of this TAF cycle.

LMK WATCHES/WARNINGS/ADVISORIES

KY...None. IN...None.