textproduct: Paducah

KEY MESSAGES

- The dangerously high heat and humidity continues with an Extreme Heat Warning thru Friday and a Heat Advisory Saturday.

- Major river flooding at Princeton is cresting tonight, then falling back into moderate flood levels this weekend.

- Storm chances increase daily into next week, eventually muting the extremities of high temperatures and heat indices.

DISCUSSION

Issued at 1205 PM CDT Thu Jul 2 2026

The immediate forecast is of concern regarding convective potential. The 00Z and 12Z CAMs are all over the place. Surface and MLCAPE's are well into the mid thousands Joules already. While lacking upper support, downdraft CAPE suggests a potential damaging wind hazard from collapsing storms, if they materialize. And while the higher threat is to our southeast, we'll have to watch closely if any can get going here in this high CAPE/low shear environ.

Dangerously high heat/humidity continues into the weekend. But with a daily pop uptick that carries thru the weekend right on into next week, at some point the convection and debris cloud mutes us off the headline numbers. It'll still be warm/humid, it is mid-summer after all; but the headline extremities should eventually cease. Until then, we'll keep 'em going with high visibility into the Semiquincentennial holiday weekend. As a result, per collaboration, we extended the headline thru Independence Day (Advisory), and will address any headline moves thereafter on a day-to-day basis.

AVIATION /00Z TAFS THROUGH 00Z FRIDAY/

Issued at 600 PM CDT Thu Jul 2 2026

A few storms may approach the OWB/EVV TAF sites early in this issuance, but the probability is low enough to leave out of the TAF. Outside of that, some ground fog may develop overnight into early Friday morning, mainly where rainfall occurred this afternoon. Winds will remain fairly light with mainly VFR conditions expected.

PAH WATCHES/WARNINGS/ADVISORIES

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