textproduct: Paducah

KEY MESSAGES

- An Extreme Heat Warning remains in effect for the whole area through 8 PM tonight. A Heat Advisory is in effect for the western four SEMO counties along with Stoddard, New Madrid, and Fulton counties from 8 PM tonight through 8 PM tomorrow night.

- Isolated to scattered showers and thunderstorms will be possible throughout the Quad State this afternoon and evening. Gusty winds, lightning and brief heavy downpours will be the primary concerns.

- Labor Day will be the choice day of the weekend, with highs around 90, much less humidity, and a light northeast wind. The relative cool down will be brief, as triple digit heat index values return for much of the Quad State Wednesday.

UPDATE

Issued at 648 PM CDT Sat Sep 5 2026

Updated the aviation section for the 00Z TAF issuance.

DISCUSSION

Issued at 143 PM CDT Sat Sep 5 2026

A sfc cold front to our north will slowly sink south today and tonight. We could see some isolated to scattered showers/storms pop up with the heat of the day ahead of the front. Right now location is lower confidence as there are no boundaries around to focus development. Timing still looks to be now through 06Z at the latest tonight. Some of these storms could be strong to severe for damaging winds. Conditions are dry the rest of the weekend behind the cold front. Temperatures are slightly cooler with the exception of the four western SEMO counties plus Stoddard, New Madrid, and Fulton counties where a Heat Advisory is in effect for tomorrow for one more day of 100+ degree heat indices.

The slightly cooler and drier weather continues through Monday before the ridging aloft to the west re-centers overhead by Tuesday morning. Heat indices return to the upper 90s on Tuesday and back to the 100+ degree mark on Wednesday. The ridge begins to flatten and break down Wednesday afternoon into Thursday. Slightly cooler and more unsettled weather for Thursday ahead of an approaching cold front. 20-30% PoPs move through the area on Thursday just ahead of the front. Scattered 15-20% PoPs are in the forecast on Friday behind the front. Overall the forecast is lower confidence heading into next weekend due to model differences.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/

Issued at 648 PM CDT Sat Sep 5 2026

A few isolated thunderstorms remain but will diminish over the next couple hours. Winds will calm and some vsby drops can occur in areas which saw fog last night and/or rain today. Northeasterly winds move in late and will end fog potential, with an MVFR band of clouds of SCT-BKN coverage moving across much of the Quad State. Cigs lift to VFR later in the day Sunday with northeasterly winds rising to 7-10kts.

PAH WATCHES/WARNINGS/ADVISORIES

IL...Extreme Heat Warning until 8 PM CDT this evening for ILZ075>078-080>094. MO...Extreme Heat Warning until 8 PM CDT this evening for MOZ076- 086-087-100-107>112-114. Heat Advisory until 8 PM CDT Sunday for MOZ107>110-114. IN...Extreme Heat Warning until 8 PM CDT /9 PM EDT/ this evening for INZ081-082-085>088. KY...Extreme Heat Warning until 8 PM CDT this evening for KYZ001>022. Heat Advisory until 8 PM CDT Sunday for KYZ001.