843  
FXUS61 KCLE 260740  
AFDCLE  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE CLEVELAND OH  
340 AM EDT FRI APR 26 2024  
   
SYNOPSIS
 
 
HIGH PRESSURE WILL DRIFT EAST OF THE GREAT LAKES REGION TODAY  
AND THEN MOVE OFF THE NEW ENGLAND COAST TONIGHT. A WARM  
FRONT WILL LIFT ACROSS THE AREA LATE TONIGHT INTO SATURDAY  
FOLLOWED BY A COLD FRONT TUESDAY.  
 

 
   
NEAR TERM /THROUGH SATURDAY/
 
 
HIGH PRESSURE CENTERED OVER UPSTATE NEW YORK THIS MORNING IS  
STILL IN CONTROL OF OUR WEATHER PATTERN THIS MORNING. WE ARE  
STARTING OFF THIS MORNING WITH FROSTY CONDITIONS UNDER CLEAR  
SKIES AND TEMPERATURES IN THE LOWER TO MIDDLE 30S AWAY FROM THE  
IMMEDIATE LAKESHORE. WE WILL ALLOW THE ONGOING FROST AND FREEZE  
HEADLINES TO RUN THROUGH 9 AM THIS MORNING.  
 
HIGH PRESSURE EAST OF THE EASTERN GREAT LAKES REGION WILL MOVE  
OFF THE NEW ENGLAND COAST BY TONIGHT. LIGHT EASTERLY WINDS THIS  
MORNING WILL BECOME SOUTHEASTERLY DURING THE DAY WITH A RETURN  
OF MILDER WEATHER COMING BACK INTO THE REGION. AN UPPER LEVEL  
RIDGE TRACK ACROSS THE OHIO VALLEY TODAY AND THIS EVENING. SKIES  
WILL START OUT CLEAR THIS MORNING BUT HIGH AND MID LEVEL CLOUDS  
WILL INCREASE FROM WEST TO EAST LATER TODAY INTO THIS EVENING.  
HIGH TEMPERATURES WILL BE ON THE UPSWING TODAY CLIMBING INTO THE  
MIDDLE 60S TO LOWER 70S.  
 
A LOW PRESSURE SYSTEM WILL TRACK THROUGH THE UPPER MIDWEST INTO  
THE WESTERN GREAT LAKES REGION TONIGHT AND SATURDAY. A WARM  
FRONT WILL LIFT NORTHWARD ACROSS THE REGION TONIGHT. SCATTERED  
RAIN SHOWERS AND ISOLATED THUNDERSTORMS WILL DEVELOP ALONG AND  
AHEAD OF THAT ADVANCING WARM FRONT TONIGHT INTO EARLY SATURDAY.  
NO ORGANIZED OR SEVERE CONVECTION IS EXPECTED BUT A FEW RUMBLES  
OF THUNDER COULD BE POSSIBLE LATE TONIGHT AND EARLY SATURDAY  
MORNING.  
 
AFTER THE WARM FRONT MOVES THROUGH THE REGION SATURDAY MORNING,  
THE TEMPERATURES WILL REALLY WARM UP BY SATURDAY AFTERNOON. THE  
AREA WILL BE IN A DEEP SOUTHERLY AND HUMID LOW LEVEL FLOW. SKIES  
WILL START OUR MOSTLY CLOUDY SATURDAY MORNING BUT BECOME PARTLY  
CLOUDY BY THE AFTERNOON. TEMPERATURES WILL RANGE FROM THE UPPER  
70S TO NEAR 80 DEGREES ACROSS NWOH. LOWER TO MIDDLE 70S ARE  
EXPECTED ACROSS NEOH AND UPPER 60S FOR NWPA.  
 

 
   
SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/
 
 
THERE WILL BE SOME LOW CONFIDENCE RAIN CHANCES FOR SATURDAY NIGHT  
INTO SUNDAY WITH A WARM FRONT LIFTING NORTH OF THE REGION AND  
ISENTROPIC LIFT/MOISTURE ADVECTION INTO THE AREA WILL PRESENT SOME  
OPPORTUNITY TO GENERATE SOME CONVECTION. WITH A STRONG RIDGE  
EMERGING INTO THE REGION, BELIEVE THAT THE TREND WITH THE FIRST PART  
OF THE PERIOD WILL BE DRY. WARM AIR ADVECTION INTO THE REGION WILL  
BE EFFICIENT FOR SUNDAY INTO MONDAY WITH THE UPPER RIDGE AND  
TEMPERATURES WILL REACH THE UPPER 70S TO LOWER 80S. SOME OF THE  
RECORD TEMPERATURES ACROSS THE AREA ON SUNDAY AND MONDAY ARE IN THE  
LOWER 80S AND COULD BE REACHED. AN UPPER TROUGH WILL PROGRESS  
EASTWARD ACROSS THE CENTRAL CONUS ON MONDAY AND TRY TO SHIFT THE  
UPPER RIDGE EAST, ALLOWING THE NEXT SYSTEM TO REACH THE AREA. WHILE  
SOME ENSEMBLE MEMBERS ARE ALLOWING PRECIPITATION INTO THE AREA  
DURING THE DAYTIME HOURS ON MONDAY, THE PATTERN WILL LIKELY BE  
SLOWER TO DEVELOP WITH THE RIDGE STRENGTH ACROSS THE EASTERN CONUS  
AND HAVE THE HIGHEST POPS REFLECTED FOR MONDAY NIGHT.  
 

 
   
LONG TERM /TUESDAY THROUGH THURSDAY/
 
 
THE LONG TERM PERIOD WILL BE FAIRLY STANDARD FOR THE END OF APRIL  
INTO EARLY MAY WITH TEMPERATURES A TOUCH ABOVE NORMAL IN THE 70S AND  
INTERMITTENT RAIN CHANCES WITH SEVERAL SHORTWAVES MOVING THROUGH THE  
GREAT LAKES REGION. THE BEST RAIN CHANCES THROUGH THE PERIOD WILL BE  
EARLY ON TUESDAY AS THE FIRST MAIN TROUGH WILL MOVE THROUGH THE  
LOCAL AREA WITH A COLD FRONT THAT WILL ALLOW FOR TEMPERATURES TO BE  
A TOUCH COOLER THAN THE WEEKEND. WEDNESDAY COULD END UP BEING A  
DRIER DAY OF THE PERIOD WITH SOME RIDGING ALOFT BEFORE THE NEXT WAVE  
ENTERS FOR THURSDAY. HOWEVER, THERE ARE CONFIDENCE CONCERNS ON THE  
TIMING OF THE PATTERN, SO HAVE SOME LOW POPS AT A MINIMUM DAILY.  
 

 
   
AVIATION /06Z FRIDAY THROUGH TUESDAY/
 
 
VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24 HOURS THROUGH THE  
END OF THIS TAF PERIOD. HIGH PRESSURE IS STILL IN CONTROL OF OUR  
WEATHER PATTERN TODAY WITH MOSTLY CLEAR SKIES EXPECTED TODAY.  
HIGH AND MID LEVEL CLOUDS WILL INCREASE LATER TODAY INTO THIS  
EVENING FROM WEST TO EAST ACROSS THE REGION BUT REMAIN VFR.  
WINDS WILL BE LIGHT FROM THE EAST 5 THIS MORNING AND INCREASE TO  
5 TO 10 KNOTS DURING THE DAY. WINDS WILL GRADUALLY BECOME  
SOUTHEAST AROUND 8 TO 12 KNOTS BY LATE THIS AFTERNOON INTO  
TONIGHT. ERI MAY HOLD ON TO EASTERLY OR EVEN NORTHEASTERLY WINDS  
A LITTLE LONGER TODAY DUE TO SOME EFFECTS FROM LAKE ERIE. THERE  
COULD BE SOME LOCALIZED GUSTS UP TO 20 KNOTS FOR ERI TODAY.  
WINDS WILL EVENTUALLY COME AROUND FROM THE SOUTHEAST AT ERI  
AROUND 12 TO 15 KNOTS TONIGHT WITH LOCALIZED GUSTS UP TO 25  
KNOTS DUE TO DOWNSLOPING EFFECTS.  
 
OUTLOOK...NON-VFR MAY RETURN IN PERIODIC SHOWERS AND  
THUNDERSTORMS EARLY SATURDAY MORNING THROUGH TUESDAY.  
 

 
   
MARINE
 
 
HIGH PRESSURE NORTHEAST OF LAKE ERIE WILL PROMOTE EASTERLY WINDS  
TODAY. WINDS WILL BE THE STRONGEST OVER THE WEST END OF THE LAKE  
WITH THE LONG FETCH OF THE LAKE. THE SURFACE HIGH WILL MOVE EAST  
TONIGHT INTO SATURDAY AS A WARM FRONT WILL MOVE ACROSS THE LAKE.  
STRONG SOUTHEAST FLOW WILL OVERTAKE THE LAKE LATE TONIGHT INTO  
SATURDAY AND THE STRENGTH OF THE WINDS COULD NECESSITATE A SMALL  
CRAFT ADVISORY HEADLINE. THE FRONT WILL LIFT NORTH OF THE REGION FOR  
THE WEEKEND AND WINDS WILL BECOME SOUTHWESTERLY AND DECREASE THROUGH  
SUNDAY. A COLD FRONT WILL APPROACH THE LAKE FOR MONDAY NIGHT AND  
SOUTHWEST WINDS WILL INCREASE SLIGHTLY AGAIN. WINDS WILL SHIFT TO BE  
A BIT MORE WESTERLY BEHIND THE FRONT FOR THE MIDDLE OF THE WEEK.  
 

 
   
CLE WATCHES/WARNINGS/ADVISORIES
 
 
OH...FROST ADVISORY UNTIL 9 AM EDT THIS MORNING FOR OHZ003-006>014-  
017>023-027>033-036>038-047.  
PA...FREEZE WARNING UNTIL 9 AM EDT THIS MORNING FOR PAZ002-003.  
NY...NONE.  
MARINE...NONE.  
 

 
 

 
 
SYNOPSIS...GRIFFIN  
NEAR TERM...GRIFFIN  
SHORT TERM...SEFCOVIC  
LONG TERM...SEFCOVIC  
AVIATION...GRIFFIN  
MARINE...SEFCOVIC  
 
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