973  
FXUS61 KBGM 260714  
AFDBGM  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BINGHAMTON NY  
314 AM EDT MON MAY 26 2025  
   
SYNOPSIS
 
 
QUITE THE LOVELY DAY FOR MOST THIS MEMORIAL DAY WITH HIGH  
PRESSURE BRINGING MOSTLY SUNNY SKIES AND WARM TEMPERATURES. A  
FEW ISOLATED AFTERNOON SHOWERS WILL BE POSSIBLE OVER THE FINGER  
LAKES AND ONEIDA TO DELAWARE COUNTIES, BUT MOST WILL FINALLY SEE  
A DAY OF DRY CONDITIONS. HIGH PRESSURE AND DRY WEATHER STICKS  
AROUND THROUGH TUESDAY. WET WEATHER RETURNS WEDNESDAY THROUGH  
THE END OF THE WEEK.  
 

 
   
NEAR TERM /THROUGH TUESDAY/
 
 
300 AM UPDATE...  
 
FLOW IS MOSTLY NORTHERLY TONIGHT AS WE SIT BETWEEN THE EXITING  
TROUGH AND APPROACHING RIDGE. FOG HAS FORMED IN THE VALLEYS  
ACROSS THE FINGER LAKES, SOUTHERN TIER, CATSKILLS AND ONEIDA  
COUNTY WITH SOME LOW LEVEL CLOUDS DEVELOPING SOUTH AND EAST OF  
THE FINGER LAKES. THE SUN SHOULD BURN THE FOG OFF BY 8 OR 9AM.  
 
IT IS SHAPING UP TO BE AN ABSOLUTELY WONDERFUL MEMORIAL DAY,  
WHICH IS WELL DESERVED FOR OUR AREA AFTER THE AWFUL WEATHER WE  
HAVE HAD TO DEAL WITH OVER THE PAST WEEK. HIGH PRESSURE WILL  
SLIDE IN FROM THE WEST THIS MORNING, BRINGING MOSTLY SUNNY SKIES  
AND TEMPERATURES IN THE MID 60S TO LOW 70S. MOST WILL SEE DRY  
CONDITIONS, BUT THERE IS A SLIGHT CHANCE FOR A FEW POP UP LIGHT  
LAKE EFFECT SHOWERS ACROSS THE WESTERN FINGER LAKES AND SOME  
WAINING UPPER TROUGH INFLUENCE COULD ALLOW SOME ISOLATED SHOWERS  
OVER ONEIDA INTO DELAWARE COUNTY FOR A FEW HOURS THIS  
AFTERNOON.  
 
HIGH PRESSURE MOVES OVERHEAD TONIGHT, BRINGING LIGHT WINDS AND  
MOSTLY CLEAR SKIES. TEMPS WILL FALL INTO THE LOW 40S FOR MOST.  
VALLEY FOG WILL DEVELOP AND IS EXPECTED TO BE MORE EXTENSIVE  
THAN TONIGHT WITH THE SURFACE HIGH CENTERED OVERHEAD AND CALM  
WINDS EXPECTED.  
 
TUESDAY WILL SEE RIDGING CONTINUING TO BUILD INTO THE AREA, BUT  
SKIES WILL BECOME CLOUDIER AS THE DAY PROGRESSES THANKS TO AN  
APPROACHING TROUGH OVER THE CENTRAL US. TUESDAY WILL BE THE  
WARMEST DAY OF THE WEEK, WITH HIGHS IN THE MID 70S ACROSS THE  
REGION.  
 

 
   
SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/
 
 
340 PM UPDATE...  
 
HIGH PRESSURE OVERHEAD TUESDAY WILL SLIDE TO THE EAST BY  
TUESDAY EVENING, AND SOME SUNSHINE TO START THE DAY WILL GIVE  
WAY TO INCREASING CLOUDS. DESPITE THE INCREASE IN CLOUDS, IT  
WILL BE DRY, AND WITH RIDGING BUILDING IN ALOFT, IT WILL BE  
TURNING MILDER WITH HIGHS TUESDAY IN THE UPPER 60S TO LOWER 70S.  
 
MEANWHILE, OUR NEXT FEATURE WILL BE DEVELOPING OVER THE  
NORTHERN PLAINS AND OHIO VALLEY TUESDAY INTO TUESDAY EVENING. AN  
UPPER LEVEL LOW FORMS OVER NORTHERN PLAINS TUESDAY, AND A  
SHORTWAVE ROUNDING THE BASE OF THE LOW IS  
 
150 PM UPDATE...  
 
LAKE ENHANCED CLOUDS WILL PERSIST INTO TONIGHT AROUND COUNTER-  
CLOCKWISE NW FLOW. A MINOR SHORT WAVE ALOFT ADVANCING ACROSS  
WESTERN NY AND PA HAS ALREADY STARTED TO TRIGGER SHOWERS WITHIN  
THE DEEPEST PLUMES OF MOISTURE EXTENDING FROM THE FINGER LAKES  
INTO THE NORTHERN TIER OF PA. THESE WILL CONTINUE AND EXPAND  
SOMEWHAT THIS AFTERNOON AS WEAK HEATING INCREASES INSTABILITY  
AHEAD OF THE WAVE. TONIGHT WILL FEATURE DIMINISHING SHOWERS  
BEHIND THE UPPER WAVE AND WITH THE LOSS OF HEATING. THE NEXT  
QUESTION IS THE POTENTIAL FOR OVERNIGHT FOG. THERE WILL BE A  
TRADE OFF BETWEEN CONTINUED CLOUD COVER AND CLEARING AREAS BUT I  
THINK THERE'S A FAIR OPPORTUNITY FOR PATCHY DENSE FOG TONIGHT  
ESPECIALLY WITH FRESH RAIN ON THE GROUND...LET ALONE FROM THE  
WEEKS OF WET WEATHER PRIMING THE SYSTEM.  
 
MEMORIAL DAY WILL BE THE SALVAGE DAY OF THE WEEK AS HIGH  
PRESSURE TAKES FULL CONTROL ALLOWING FOR THE LOW CLOUDS TO BURN  
OFF IN THE MORNING ALONG WITH TEMPERATURES GETTING CLOSER TO  
NORMAL IN THE MID-UPPER 60S AND MAYBE A TOUCH OF 70 IN NEPA AND  
SOUTHERN TIER VALLEYS.EXPECTED TO LEAD TO  
THE DEVELOPMENT OF A SURFACE LOW NEAR THE OHIO VALLEY BY TUESDAY  
EVENING. AS THIS LOW SLOWLY PUSHES NORTH INTO THE GREAT LAKES,  
SHOWERS WILL SPREAD FROM SOUTHWEST TO NORTHEAST ACROSS THE CWA  
WEDNESDAY AND CONTINUE INTO WEDNESDAY NIGHT. HIGH TEMPERATURES  
WEDNESDAY ARE EXPECTED TO BE FROM THE UPPER 50S TO THE MID 60S,  
WITH THE SYRACUSE METRO AND MOHAWK VALLEY REACHING THE UPPER 60S  
TO NEAR 70 DEGREES WITH RAIN ARRIVING LATER IN THE DAY. LOW  
TEMPERATURES TUESDAY AND WEDNESDAY NIGHTS WILL BE IN THE UPPER  
40S TO MID 50S.  
 

 
   
LONG TERM /THURSDAY THROUGH SUNDAY/
 
 
340 PM UPDATE...  
 
ADDITIONAL SHOWERS ARE EXPECTED THURSDAY INTO FRIDAY AS THE  
SURFACE LOW MENTIONED ABOVE CONTINUES TO SLOWLY DRIFT NORTH AND  
EAST INTO CANADA AND AN UPPER TROUGH MOVES IN OVERHEAD.  
ADDITIONAL SHORTWAVE DISTURBANCES WILL BE ROTATING SOUTH ACROSS  
THE REGION INTO THE WEEKEND WITH ROUNDS OF SHOWERS AND WILL ALSO  
DRAW IN COOLER CANADIAN AIR. WHILE CHANCES FOR THUNDER ARE LOW,  
THURSDAY AND SATURDAY MAY HAVE THE BEST CHANCE FOR AN ISOLATED  
THUNDERSTORM OR TWO AS WEAK BOUNDARIES PUSH THROUGH.  
 
HIGHS THURSDAY AND FRIDAY WILL MAINLY BE IN THE MID 60S TO LOW  
70S WITH MID 70S IN SOME VALLEY LOCATIONS. SATURDAY AND SUNDAY'S  
HIGHS ARE EXPECTED TO BE FROM THE LOW 60S TO NEAR 70 DEGREES.  
OVERNIGHT LOWS WILL BE IN THE 50S THURSDAY AND FRIDAY NIGHTS  
THEN IT WILL TREND COOLER SATURDAY NIGHT INTO THE 40S.  
 

 
   
AVIATION /07Z MONDAY THROUGH FRIDAY/
 
 
FOG HAS STARTED TO DEVELOP OVER THE AREA, ESPECIALLY ACROSS THE  
VALLEYS OF THE CATSKILLS, SOUTHERN TIER AND FINGER LAKES. ITH  
AND BGM HAVE SEEN FOG BOUNCE IN AND OUT OF IFR RESTRICTIONS, AND  
IT IS EXPECTED TO SETTLE IN WITH PERSISTENT IFR/LIFR VISBY IN A  
COUPLE OF HOURS. ELM SHOULD JOIN THE IFR PARTY SOON AS MVFR  
VISBY IS DEVELOPING THERE NOW AND SHOULD FALL TO IFR/LIFR IN A  
COUPLE OF HOURS. RME IS ALSO EXPECTED TO SEE IFR/LIFR VISBY FROM  
FOG DEVELOP LATER TONIGHT. SATELLITE IMAGES SHOW FOG DEVELOPING  
EAST AND SOUTH OF THE TERMINAL AND THIS FOG SHOULD MOVE INTO  
THE TERMINAL BY 9Z. THE AFOREMENTIONED TERMINALS SHOULD SEE FOG  
LIFT AROUND 13-14Z, WITH VFR CONDITIONS OCCURRING THROUGH THE  
REST OF THE DAY.  
 
SYR AND AVP SHOULD BE VFR THROUGH THE PERIOD AS WIND DIRECTION  
TONIGHT IS NOT FAVORABLE FOR FOG DEVELOPMENT.  
 
OUTLOOK...  
 
MONDAY NIGHT THROUGH TUESDAY NIGHT... OVERNIGHT FOG DEVELOPS  
WITH IFR/LIFR RESTRICTIONS POSSIBLE. DURING THE DAY, MAINLY  
VFR; TEMPORARY HIGH PRESSURE MOVES INTO THE REGION.  
 
WEDNESDAY THROUGH FRIDAY...ANOTHER UPPER LEVEL LOW PRESSURE  
SYSTEM ENCROACHES, WITH SCATTERED SHOWERS/RESTRICTIONS, AND  
PERHAPS A THUNDERSTORM.  
 

 
   
BGM WATCHES/WARNINGS/ADVISORIES
 
 
PA...NONE.  
NY...NONE.  
 

 
 

 
 
SYNOPSIS...JTC  
NEAR TERM...JTC  
SHORT TERM...DK  
LONG TERM...DK  
AVIATION...JTC  
 
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