903  
FXUS61 KILN 221424  
AFDILN  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE WILMINGTON OH  
1024 AM EDT SUN JUN 22 2025  
   
SYNOPSIS
 
 
HEAT AND HUMID WILL INCREASE AS A MID LEVEL RIDGE BUILDS INTO THE  
AREA. THE HOT AND HUMID CONDITIONS WILL PREVAIL THROUGH THE MIDDLE  
OF THE WEEK.  
 

 
   
NEAR TERM /UNTIL 6 PM THIS EVENING/
 
 
FORECAST IS ON TRACK. STILL EXPECTING DEVELOPMENT OF SOME DIURNAL  
CUMULUS.  
 

 
   
SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/
 
 
THE CENTER OF AN ANOMALOUSLY STRONG MID LEVEL RIDGE WILL CONTINUE TO  
EXTEND ACROSS THE AREA THROUGH THE PERIOD WITH SURFACE HIGH CENTERED  
TO THE SOUTHEAST. LOWS TONIGHT WILL ONLY DROP TO THE LOWER AND MIDDLE  
70S. HIGH TEMPERATURES ON MONDAY TOP OUT IN THE MIDDLE 90S ACROSS  
MUCH OF THE AREA. THESE HOT TEMPERATURES COMBINED WITH HIGH HUMIDITY  
WILL PRODUCE AFTERNOON HEAT INDICES BETWEEN 100 AND 105 DEGREES. THE  
HEAT ADVISORY HEADLINE CONTINUES THRU THE PERIOD. SOME OF THE CAM  
SOLUTIONS PRODUCE AN ISOLATED AFTERNOON THUNDERSTORM ACROSS THE  
SOUTHWEST. THIS IS NOT OUT OF THE QUESTION BUT DUE TO A LACK OF  
FORCING HAVE MAINTAINED A DRY FORECAST WITH MOST OF THE AREA  
REMAINING DRY.  
 

 
   
LONG TERM /MONDAY NIGHT THROUGH SATURDAY/
 
 
THE 500H RIDGE REMAINS OVER THE MID-ATLANTIC, BUT WILL BE BEGINNING  
THE PROCESS OF FLATTENING OUT THANKS TO WAVES MOVING THROUGH CANADA.  
GUIDANCE SUGGESTS A FRONTAL BOUNDARY SAGGING THROUGH THE NORTHERN  
GREAT LAKES REGION, WHICH WILL PROVIDE SOME FORCING TO INTRODUCE  
SOME WEAK CHANCES FOR DIURNAL POPS, PARTICULARLY FOR AREAS NORTH OF  
I-70. DESPITE THIS, THE SURFACE HIGH TO OUR SOUTHEAST CONTINUES TO  
BE THE PRIMARY WEATHER INFLUENCER AND DAYTIME HIGH TEMPERATURES  
CONTINUE TO REACH THE 90S WITH HEAT INDICES IN THE LOW 100S. AS  
SUCH, HAVE CONTINUED THE HEAT ADVISORY AND EXTENDED IT THROUGH  
WEDNESDAY, GIVEN THE CONTINUED WARM SIGNAL.  
 
WARM TEMPERATURES CONTINUE TO DOMINATE THE FORECAST AS WE HEAD  
TOWARD THE END OF THE WORKING WEEK, THOUGH CONFIDENCE IN ADVISORY  
CRITERIA BEING REACH ISN'T QUITE AS ROBUST, GIVEN THE INTRODUCTION  
OF POPS AND THE BREAKDOWN OF THE HIGH/RIDGE. RAIN CHANCES INCREASE  
AS WE HEAD TOWARD THE WEEKEND AND TEMPERATURES TREND A TAD COOLER.  
 

 
   
AVIATION /15Z SUNDAY THROUGH THURSDAY/
 
 
HIGH PRESSURE WILL REMAIN IN CONTROL OF THE WEATHER THROUGH THE TAF  
PERIOD. A FEW AFTERNOON CU WILL BE POSSIBLE AGAIN THIS AFTERNOON,  
OTHERWISE JUST EXPECT SOME HIGH CLOUDS AT TIMES. SOME PATCHY RIVER  
VALLEY FOG WILL BE POSSIBLE AT KLUK EARLY THIS MORNING AND AGAIN  
LATE TONIGHT.  
 
OUTLOOK...NO SIGNIFICANT WEATHER EXPECTED.  
 

 
   
ILN WATCHES/WARNINGS/ADVISORIES
 
 
OH...HEAT ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR OHZ026-034-035-042>046-  
051>056-060>065-070>074-077>082-088.  
AIR QUALITY ALERT UNTIL MIDNIGHT EDT MONDAY NIGHT FOR OHZ042-043-  
051-053-060>062-070>072-077-078.  
KY...HEAT ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR KYZ089>100.  
AIR QUALITY ALERT UNTIL MIDNIGHT EDT MONDAY NIGHT FOR KYZ091>093.  
IN...HEAT ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR INZ050-058-059-066-  
073>075-080.  
AIR QUALITY ALERT UNTIL MIDNIGHT EDT MONDAY NIGHT FOR INZ074.  
 

 
 

 
 
SYNOPSIS...AR  
NEAR TERM...  
SHORT TERM...AR  
LONG TERM...CA  
AVIATION...AR  
 
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