textproduct: Paducah

KEY MESSAGES

- Dangerously high heat and humidity continues into the holiday weekend, with a Warning transitioning to an Advisory this evening, and continuing thru the Indendence Day festivities.

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

- Storm chances increase daily into next week, eventually muting the extremeties of high temperatures and heat indices back closer to normal levels for the beginning of the new week.

DISCUSSION

Issued at 1210 PM CDT Fri Jul 3 2026

Highs in the mid 90s and dew points in the mid 70s combines for HI's to max out close to 110 degrees again today, with the prolonged duration of dangerously high heat and humidity keeping the Excessive Heat Warning in effect one more day. We transition to a Heat Advisory for Independence Day, as highs are generally expected in the lower half 90s so HI's top off closer to around 105 degrees. By the beginning of the new week, they've backed off enough to return temps/humidity levels closer to our seasonal norms for mid summer.

Daily pcpn chances increase with time and mostly maximize during the peak heating hours of the afternoon and early evening. This helps with the ridge's breakdown, and with additional cloud/debris from daily rising pops, the combo should assist temps to return to more common/seasonal averages for this time of year. Of course still high PW's means locally heavy rains are possible, in addition to lightning and brief gusty winds, with any stronger storms that arise.

AVIATION /18Z TAFS THROUGH 18Z SATURDAY/

Issued at 1210 PM CDT Fri Jul 3 2026

Diurnal cu bases FEW-SCT today could yield isolated storms during peak heating, but the chance is low enough to preclude from terminal mention at this writing. Overnight, patchy fog could develop and if so, restrict vsbys at times. Tmrw is another day like today with diurnal cu firing and associated pcpn chances picking up, esp just after package expiration time.

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.