025  
FXUS63 KLMK 192325  
AFDLMK  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LOUISVILLE KY  
625 PM EST FRI DEC 19 2025  
   
..UPDATED AVIATION DISCUSSION  
 
   
KEY MESSAGES  
 
* WARMER TEMPERATURES RETURN TOMORROW UNDER SUNNY SKIES BEFORE A DRY  
COLD FRONT DROPS TEMPERATURES FOR SUNDAY.  
 
* A WARMING TREND BEINGS ON MONDAY AND LASTS THROUGH CHRISTMAS WITH  
TEMPERATURES EXPECTED TO CLIMB INTO THE 60S WITH SOME POSSIBLE  
70S.  
 
 
   
SHORT TERM /THROUGH SATURDAY/  
 
ISSUED AT 418 PM EST FRI DEC 19 2025  
 
AS THE UPPER TROUGH AND EARLIER STRATUS CONTINUE TO WORK NORTHEAST  
AWAY FROM THE LOWER OHIO VALLEY, SURFACE HIGH PRESSURE, CENTERED  
OVER THE LOWER MISSISSIPPI VALLEY, IS MOVING NORTHEAST TOWARDS FAR  
EASTERN KENTUCKY. THIS ALONG WITH MOSTLY ZONAL FLOW WILL KEEP SKIES  
CLEAR FOR THE REST OF THE DAY.  
 
TONIGHT, AS THE SURFACE LOW SLIDES EAST PAST THE CWA, WAA RETURNS TO  
THE AREA. WITH WINDS INCREASING LATER IN THE NIGHT, KEEPING THE NEAR  
SURFACE BETTER MIXED, THIS SHOULD HELP TO LIMIT RADIATIVE COOLING.  
LOWS WILL STILL LIKELY FALL INTO THE UPPER 20S TO LOW 30S UNDER  
CLEAR SKIES.  
 
TOMORROW, CLEAR SKIES REMAIN AS ZONAL FLOW PUSHES THE SURFACE HIGH  
INTO THE ATLANTIC AS A COLD FRONT CROSSES ILLINOIS HEADED TOWARDS  
SOUTHERN INDIANA AND CENTRAL KENTUCKY. THE FRONT PUSHING AGAINST THE  
SURFACE HIGH WILL INCREASE THE PRESSURE GRADIENT OVER THE OHIO  
VALLEY, RESULTING IN ANOTHER BREEZY DAY. SOUTHERLY WINDS ARE  
EXPECTED TO WARM TEMPERATURES INTO THE 50S FOR MOST. DURING THE  
AFTERNOON AND EVENING HOURS, CLOUD COVER WILL BEGIN INCREASING FROM  
THE NORTHWEST AS THE FRONT NEARS.  
 
 
   
LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/  
 
ISSUED AT 418 PM EST FRI DEC 19 2025  
 
SATURDAY NIGHT, AS A LOW PRESSURE SYSTEM PASSES EAST, NORTH OF THE  
GREAT LAKES, ITS TRAILING COLD FRONT WILL GET CARRIED SOUTHEAST  
THROUGH THE CWA. SURFACE HIGH PRESSURE WILL REMAIN OVER THE  
SOUTHEAST AHEAD OF THE FRONT WITH ANOTHER SURFACE HIGH BEHIND THE  
FRONT. STILL EXPECTING SOME CLOUDS TO PASS OVERHEAD, BUT  
PRECIPITATION ISN'T EXPECTED WITH THE FRONT. THE RETURN OF CAA  
BEHIND THE FRONT WILL DROP SATURDAY NIGHT LOWS INTO THE UPPER 20S TO  
MID 30S.  
 
SUNDAY, WITH THE FRONT PUSHING SOUTH OF THE REGION, SKIES CLEAR, BUT  
CONTINUED NORTHERLY WINDS WILL KEEP HIGHS IN THE UPPER 30S TO UPPER  
40S.  
 
BY MONDAY INTO MONDAY NIGHT, SURFACE HIGH PRESSURE THAT WAS GETTING  
PUSHED OVER THE CWA, KEEPING WEATHER FAIRLY QUIET, WILL NOW GET  
PUSHED SOUTHEAST AND REMAIN OVER THE SOUTHEAST. THIS WILL BEGIN TO  
FUNNEL WARMER TEMPERATURES AND MOISTURE FROM THE GULF NORTHWARD INTO  
THE OHIO VALLEY. RAIN CHANCES BEGIN INCREASING ON MONDAY WITH THE  
BEST CHANCE COMING MONDAY NIGHT, BUT OVERALL RAINFALL AMOUNTS LOOK  
TO ONLY BE A FEW HUNDREDTHS. WAA IS EXPECTED TO LIFT TEMPERATURES  
INTO THE MID 40S TO MID 50S ON MONDAY, BUT DAILY INCREASES IN  
TEMPERATURES WILL BRING THE 60S AND MAYBE A FEW 70S BY CHRISTMAS.  
WITH THE SURFACE HIGH REMAINING OVER THE SOUTHEAST, ADDITIONAL LOW-  
END RAIN CHANGES WILL CONTINUE THROUGH THE END OF THE WEEK, BUT NO  
SIGNIFICANT AMOUNTS ARE EXPECT.  
 
 
   
AVIATION /00Z TAFS THROUGH 06Z SUNDAY/  
 
ISSUED AT 625 PM EST FRI DEC 19 2025  
 
VFR CONDITIONS WILL CONTINUE THROUGH THE TAF FORECAST. HIGH PRESSURE  
IS MOVING EAST OVER THE REGION, HELPING TO KEEP SKIES CLEAR AND  
WINDS LIGHTER. IN THE MORNING, A LLJ WILL MOVE INTO THE REGION,  
LEADING TO 40-44KTS OF LLWS THROUGH THE MID-MORNING HOURS. BY MID-  
MORNING, THE NOCTURNAL INVERSION WILL DISSIPATE AND WINDS WILL BEGIN  
TO TRANSFER TO THE SURFACE LEADING TO WIND GUSTS UP TO 25-28KTS  
THROUGH THE AFTERNOON. BY THE EVENING, WINDS WILL BEGIN TO RELAX.  
 
 
   
LMK WATCHES/WARNINGS/ADVISORIES  
 
KY...NONE.  
IN...NONE.  
 
 
 
 
 
SHORT TERM...KDW  
LONG TERM...KDW  
AVIATION...SRW  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab KY Page
The Nexlab IN Page
Main Text Page