textproduct: Paducah

KEY MESSAGES

- Dangerous heat and humidity will continue into the first half of the weekend, with an Extreme Heat Warning in effect through this evening, and a Heat Advisory in effect tonight through the July 4th holiday.

- Low end chances of showers and and thunderstorms (15-30%) return this afternoon and evening mainly in southwest Indiana, much of southern Illinois, and especially west Kentucky, with these areas included in the SPC Day 1 Severe Weather Outlook.

- Chances of showers and thunderstorms (30-60%) will increase across the entire region over the weekend and continue into early next week, with lesser chances (20-40%) Wednesday and Thursday.

- The additional clouds and precipitation will tamp down temperatures closer to seasonable readings Sunday and especially next week, but it will continue to be pretty humid.

UPDATE

Issued at 649 AM CDT Fri Jul 3 2026

Updated aviation section for 12z TAF issuance.

DISCUSSION

Issued at 125 AM CDT Fri Jul 3 2026

Another day of dangerous heat and humidity can be expected today as heat indices reach 105 to 112 degrees, and the Extreme Heat Warning continue into this evening. Additional clouds and scattered precipitation will tone down heat indices into the 102 to 107 degree range for the July 4th holiday, and the 98-105 degree range on Sunday. The humidity will persist into next week, but with temperatures closer to seasonable values, heat indices will stay mostly in the 90s.

As the upper ridge continues to slowly break down and move east, 15-30% chances of showers and thunderstorms will return this afternoon/evening to mainly the eastern half of the PAH forecast area. SPC has included our eastern half in a Marginal Risk of severe storms today. A couple of upper level waves will move through the region this weekend, with a more significant trof in conjunction with a frontal boundary early next week. The model blend produces on and off chances of 30-60% Saturday through Tuesday, with the higher chances becoming more focused across west Kentucky Monday and Tuesday near and south of the frontal boundary. The front will linger in our region mid to late week, keeping 20-40% chances showers and storms across our area.

AVIATION /12Z TAFS THROUGH 12Z SATURDAY/

Issued at 649 AM CDT Fri Jul 3 2026

Any lingering MVFR fog will dissipate by 13z. VFR conditions primarily expected through the TAF period. Isolated shra/tsra possible this afternoon/early evening mainly east of Mississippi River, but chances too low to include in TAF. Brief dips to MVFR vsbys possible toward the end of the TAF period. Winds will be light/calm to south around 5kts.

PAH WATCHES/WARNINGS/ADVISORIES

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