022  
FXUS63 KLMK 241057  
AFDLMK  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LOUISVILLE KY  
657 AM EDT THU JUL 24 2025  
   
..UPDATED AVIATION DISCUSSION
 
 
   
KEY MESSAGES
 
 
* HEAT ADVISORY THIS AFTERNOON/EVENING OVER ALL OF SOUTHERN INDIANA  
AND PART OF CENTRAL KENTUCKY  
 
* MAINLY DRY CONDITIONS CONTINUE WITH ISOLATED AFTERNOON/EVENING  
CONVECTION POSSIBLE  
 

 
   
SHORT TERM /THROUGH TONIGHT/
 
 
ISSUED AT 356 AM EDT THU JUL 24 2025  
 
TODAY, UPPER RIDING REMAINS IN PLACE, CUTTING NORTH THROUGH THE FOUR  
CORNERS REGION, RUNNING THROUGH THE GREAT LAKES, AND THEN DROPPING  
SOUTH AGAIN THROUGH NEW ENGLAND. AT THE SURFACE, HIGH PRESSURE WILL  
STRETCH FROM THE CAROLINAS WEST INTO TENNESSEE AND KENTUCKY.  
GENERALLY THIS WILL HELP KEEP THE REGION WARM AND DRY, BUT WARM  
MOIST AIR IS BEING ADVECTED INTO THE REGION, LIFTING DEW POINTS INTO  
THE MID TO UPPER 70S OVER MUCH OF THE CWA. THE LAKE CUMBERLAND AND  
BLUEGRASS REGIONS ARE EXPECTED TO SEE SLIGHTLY LOWER VALUES. FOR  
MOST PEOPLE, EXPECTING A MOSTLY DRY DAY, BUT THOSE NEAR THE OHIO  
RIVER COULD SEE SOME ISOLATED TO SCATTERED THUNDERSTORMS POP UP THIS  
AFTERNOON AS PRECIPITABLE WATER VALUES OF AROUND 2" EXTEND UP THE  
RIVER VALLEY. THIS WILL LIKELY BE TRIGGERED BY DIFFERENTIAL HEATING  
IN THE UNSTABLE AIRMASS. FORCING WILL BE LIMITED. THE HEAT ADVISORY  
CONTINUES UNCHANGED FOR MUCH OF THE CWA THROUGH THIS AFTERNOON AND  
EVENING.  
 
TONIGHT, ANY REMAINING SHOWERS AND/OR THUNDERSTORMS WILL DISSIPATE  
EARLY IN THE NIGHT. WINDS WILL EASE UNDER CLEARING SKIES.  
 

 
   
LONG TERM /FRIDAY THROUGH WEDNESDAY/
 
 
ISSUED AT 356 AM EDT THU JUL 24 2025  
 
THE STORY THIS WEEK WILL BE THE UPPER RIDGE/UPPER HIGH THAT ON  
FRIDAY IS STILL OVER THE SOUTHEAST. THIS WILL CONTINUE TO GIVE US  
ISOLATED TO SCATTERED AFTERNOON/EVENING CONVECTION CHANCES, BUT  
OVERALL MOST PEOPLE WILL SEE MOSTLY DRY HOT DAYS. THE CONCERN THIS  
PERIOD WILL BE THE HEAT WITH HIGHS EXPECTED IN THE 90S AND DEW  
POINTS IN THE 70S UNTIL AT LEAST THE MIDDLE OF NEXT WEEK. THE  
CURRENT FORECAST SHOWS A HEAT ADVISORY WILL LIKELY NOT BE NEEDED FOR  
FRIDAY AND SATURDAY AS HEAT INDICES REMAIN BELOW 105, BUT ON SUNDAY,  
AS THE UPPER HIGH SLIDES WEST OVER THE LOWER OHIO VALLEY, HEAT  
INDICES RETURN TO 105+ FOR MANY AREAS WEST OF FRANKFORT. THESE  
WARMER HEAT INDICES COULD REMAIN THROUGH AROUND MID-WEEK, AT LEAST  
FOR PARTS OF THE CWA.  
 
FOR THE END OF THE PERIOD, AS THE UPPER HIGH MAKES IT WEST TO  
OKLAHOMA, AN UPPER TROUGH IS EXPECTED TO DROP A COLD FRONT SOUTH  
THROUGH INDIANA AND KENTUCKY ON THURSDAY. THIS COULD PROVIDE FOR AN  
ADDITIONAL RAIN CHANCE, BUT IT IS EXPECTED TO DROP DEW POINTS BACK  
INTO THE 60S.  
 

 
   
AVIATION /12Z TAFS THROUGH 18Z FRIDAY/
 
 
ISSUED AT 657 AM EDT THU JUL 24 2025  
 
THERE IS A GOOD CHANCE THAT VFR CONDITIONS REMAIN THROUGH THE  
FORECAST PERIOD, BUT THERE IS AN INCREASING CHANCE THAT AN ISOLATED  
THUNDERSTORM COULD DEVELOP NEAR SDF AND/OR HNB TODAY. BELIEVE THE  
CHANCE IS LOW ENOUGH TO KEEP IT OUT OF THE TAF FOR NOW, BUT THIS  
COULD BE ADDED TO FUTURE TAFS. WINDS WILL INCREASE AROUND MIDDAY TO  
8 TO 10 KNOTS OUT OF THE SOUTHWEST.  
 

 
   
LMK WATCHES/WARNINGS/ADVISORIES
 
 
KY...HEAT ADVISORY FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7  
PM CDT/ THIS EVENING FOR KYZ023>035-038-039-045-053-  
061>063-070>074.  
IN...HEAT ADVISORY FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7  
PM CDT/ THIS EVENING FOR INZ076>079-083-084-089>092.  
 

 
 

 
 
SHORT TERM...KDW  
LONG TERM...KDW  
AVIATION...KDW  
 
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