580  
FXUS63 KLMK 191440  
AFDLMK  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LOUISVILLE KY  
1040 AM EDT THU MAR 19 2026  
   
KEY MESSAGES  
 
* TEMPERATURES WARM EACH DAY BEFORE REACHING THE 70S AND 80S BY  
FRIDAY INTO THE WEEKEND.  
 
* SUNDAY NIGHT INTO MONDAY, A COLD FRONT DROPS TEMPERATURES BACK TO  
THE 50S WITH AN ADDITIONAL CHANCE OF RAIN FOR SOME.  
 
 
   
UPDATE  
 
ISSUED AT 1039 AM EDT THU MAR 19 2026  
 
THIS MORNING, A WEAK MID-LEVEL PERTURBATION IS CROSSING THE LOWER  
GREAT LAKES INTO THE UPPER OHIO VALLEY. INCREASED MOISTURE CAN BE  
SEEN ON 7.3-MICRON WV CHANNEL AND IS MANIFESTING AS A MID-LEVEL  
CLOUD DECK WHICH IS MAINLY ALONG AND EAST OF I-65 AS OF THIS HOUR.  
WHILE WE'LL CONTINUE TO HAVE SCATTERED MID- AND HIGH-LEVEL CLOUDS  
THROUGH THE DAY, MORE CLEARING TO THE NW OF THE REGION WILL LEAD TO  
MORE SUNSHINE THIS AFTERNOON. THIS SHOULD HELP TEMPERATURES WARM  
INTO THE MID-TO-UPPER 60S TO AROUND 70 THIS AFTERNOON, AND THE  
LATEST FORECAST HAS NUDGED TEMPERATURES SLIGHTLY UPWARD FOR THIS  
AFTERNOON. HAVE ALSO REMOVED MENTION OF SPRINKLES FROM THE FORECAST  
GIVEN LATEST TRENDS IN GUIDANCE AS WELL AS SATELLITE AND FORECAST  
SOUNDING TRENDS.  
 
OVERALL, THE FORECAST REMAINS ON TRACK, WITH A MILDER AND QUIET DAY  
EXPECTED ACROSS SOUTHERN INDIANA AND CENTRAL KENTUCKY. UPDATED  
FORECAST PRODUCTS WERE SENT IN THE LAST 10 MINUTES.  
 
 
   
SHORT TERM /THROUGH FRIDAY/  
 
ISSUED AT 442 AM EDT THU MAR 19 2026  
 
HIGH CLOUDS WILL CONTINUE TO FILTER OVER THE AREA THIS MORNING  
BEFORE CLEARING OUT LATER THIS AFTERNOON AS A WEAK SHORTWAVE MOVES  
OVER THE GREAT LAKES. OTHER THAN A FEW SPRINKLES, THE WEATHER SHOULD  
REMAIN MAINLY DRY AND ALSO START A WARMING TREND THROUGH THE END OF  
THE WEEK AND INTO THE WEEKEND. MORE SUNSHINE LATER THIS AFTERNOON AS  
THE CLOUDS PUSH THROUGH WITH HIGHS IN THE MID/UPPER 60S TO NEAR 70.  
CLEAR SKIES AROUND AS WE GO OVERNIGHT BUT NOT AS COLD WITH LOWS IN  
THE MID/UPPER 40S. ANOTHER WEAK SHORTWAVE WILL WORK ALONG THE  
NORTHWEST FLOW ALOFT THROUGH THE GREAT LAKES WITH A FEW MORE  
AFTERNOON CLOUDS BUT SHOULD BE MAINLY HIGH AND WITH SOME AFTERNOON  
MIXING COULD GET SOME GUST OF 20-30 MPH. HIGHS CONTINUE TO GET  
WARMER FOR THE END OF THE WEEK WITH HIGHS IN THE LOW/M,ID 70S WITH  
UPPER 70S AROUND BOWLING GREEN.  
 
 
   
LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/  
 
ISSUED AT 442 AM EDT THU MAR 19 2026  
 
AS WE GO INTO THE WEEKEND THE WEATHER STORY REMAINS THE UNSEASONABLY  
WARM TEMPERATURES. TEMPERATURES CLIMB INTO THE 70S TO MID 80S. WE  
CONTINUE TO KEEP AN EYE ON A COLD FRONT EXPECTED TO WORK ACROSS THE  
OHIO VALLEY FROM THE NORTH SUNDAY NIGHT INTO MONDAY MORNING. THIS IS  
EXPECTED TO COOL TEMPERATURES BACK INTO THE LOW 50S TO MID 60S EARLY  
NEXT WEEK. MODEL TRENDS CONTINUE TO KEEP MOST OF THE PRECIPITATION  
TO OUR EAST AND NORTH AS THIS BOUNDARY MOVES THROUGH, AS WAS  
MENTIONED IN THE PREVIOUS DISCUSSION, WE COULD SEE SOME ELEVATE  
INSTABILITY, CAN'T RULE OUT SOME HAIL OR GUSTY WINDS BUT THE OVERALL  
SEVERE THREAT LOOKS LOW AT THIS TIME. THE REST OF THE FORECAST LOOKS  
MAINLY DRY BUT COOLER.  
 
 
   
AVIATION /12Z TAFS THROUGH 18Z FRIDAY/  
 
ISSUED AT 636 AM EDT THU MAR 19 2026  
 
A WEAK UPPER WAVE IS WORKING ACROSS THE GREAT LAKE AND THE OHIO  
VALLEY, HIGH CLOUDS ASSOCIATED WITH THIS SYSTEM IS PASSING OVER KY  
THIS MORNING. WE WILL HAVE HIGH BKN/OVC SKIES THIS MORNING AND THERE  
IS EVEN THE CHANCE OF A FEW SPRINKLES BUT MOST WILL REMAIN DRY. WE  
WILL REMAIN VFR THROUGH THE FORECAST AND EXPECT CLEARING TO TAKE  
PLACE LATER TODAY INTO THE OVERNIGHT. WINDS WILL REMAIN OUT OF THE  
SOUTH THROUGH THE FORECAST PERIOD AS WELL.  
 
 
   
LMK WATCHES/WARNINGS/ADVISORIES  
 
KY...NONE.  
IN...NONE.  
 
 
 
 
 
UPDATE...CSG  
SHORT TERM...BTN  
LONG TERM...BTN  
AVIATION...BTN  
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