textproduct: Paducah

KEY MESSAGES

- A headlining late season heat wave with high temperatures near or at record levels continues thru the rest of the week. - A cold front's late weekend passage will bring a chance of rain and cooler and less humid conditions early next week.

DISCUSSION

Issued at 1202 PM CDT Tue Sep 15 2026

The blast of furnace heat shows no signs of abating the remainder of the week. The upper (H5) high holds strong in the upper 590s DM while gradually retrograding across the FA. H8 temps actually increase 2-3C during this period, resulting in forecast surface highs challenging mid September record warmth both in terms of absolute maximum but also some record warm minimums are in play each day the remainder of the week. Combined with dews holding pretty firmly in the upper 60s-lower 70s over most of that time, resultant triple digit heat indices will too.

With the upper high so strong and influential, our only short term chance at appreciable rainfall is with rimfire storms. The nearest such chance is late today into the evening, with a front that is positioned off to the north. If some of its heat-of-day evolution can blow off down as far as I-64, this might offer the best chance at an isolated exception to what will otherwise continue as basically day-after-day dry conditions.

The next best chance thereafter is with some late weekend ridge breakdown as a cold front makes its play toward the region. Its passage brings cooler temperatures and less humid conditions for early next week; enjoy that while we can as a resurging signal for broad upper ridging over the country's mid section puts our 6-10 and 8-14 projections back into "Above Normal" for temperatures, as if summer just does not want to yield, autumnal equinox or not.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1202 PM CDT Tue Sep 15 2026

Strong high pressure will keep a predominantly Visual Flight Rules forecast, with FEW-SCT bases possible within a generally warm sectored southerly flow regime that may include some diurnal gusts at times. A front's near proximity to our north may offer blow-off clouds that temporarily increase bases to SCT-BKN at times, most likely north at KMVN-KEVV/KOWB if it occurs.

PAH WATCHES/WARNINGS/ADVISORIES

IL...Heat Advisory until 7 PM CDT Friday for ILZ075>078-080>094. MO...Heat Advisory until 7 PM CDT Friday for MOZ076-086-087-100- 107>112-114. IN...Heat Advisory until 7 PM CDT /8 PM EDT/ Friday for INZ081-082- 085>088. KY...Heat Advisory until 7 PM CDT Friday for KYZ001>022.