424  
FXUS61 KBGM 210856  
AFDBGM  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BINGHAMTON NY  
356 AM EST FRI FEB 21 2025  
   
SYNOPSIS  
 
SCATTERED LAKE EFFECT SNOW SHOWERS WILL CONTINUE ACROSS PARTS OF  
CENTRAL NY TODAY, MAINLY ACROSS THE FINGER LAKES REGION. THE  
WEEKEND WILL SEE A WELCOME PERIOD OF QUIET CONDITIONS WITH  
GRADUALLY WARMING TEMPERATURES.  
 
 
   
NEAR TERM /THROUGH SATURDAY/  
 
325 AM UPDATE:  
 
WITH A CONTINUED NORTHWEST FLOW AND 850MB TEMPERATURES AROUND -15C,  
LIGHT LAKE EFFECT SNOW SHOWERS ARE EXPECTED TO CONTINUE TODAY  
ACROSS PARTS OF CENTRAL NY, ESPECIALLY ACROSS THE FINGER LAKES  
REGION. RELATIVELY SHALLOW MOISTURE CONTINUES TO LIMIT THE  
STRENGTH OF THESE SNOW SHOWERS, BUT WITH HIGH SLRS (20-25:1), A  
FLUFFY ADDITIONAL 1-3 INCHES OF SNOW IS POSSIBLE, PARTICULARLY  
ACROSS THE FAR WESTERN PORTIONS OF OUR FORECAST AREA; FROM  
NORTHERN SENECA-CAYUGA-WESTERN ONONDAGA COUNTIES. THERE WAS  
BRIEF CONSIDERATION TO ISSUE WINTER WEATHER ADVISORIES FOR THOSE  
AREAS, BUT WITH MOST OF THE SNOW HAVING ALREADY FALLEN, COMBINED  
WITH THE RELATIVELY LIGHT INTENSITY OF THESE SNOW SHOWERS, FELT  
THAT ISSUING AN ADVISORY WAS NOT NECESSARY. WILL LIKELY ISSUE A  
SPECIAL WEATHER STATEMENT CLOSER TO THE MORNING COMMUTE TIME TO  
MENTION THAT SOME SLIPPERY SPOTS WILL BE POSSIBLE FOR THE  
MORNING COMMUTE.  
 
850MB TEMPERATURES WILL RISE SLIGHTLY THROUGHOUT THE DAY, WHICH  
WILL ALLOW FOR THE LAKE EFFECT SNOW SHOWERS TO GRADUALLY TAPER  
OFF. THAT BEING SAID, WITH THE FLOW REMAINING WEST-  
NORTHWESTERLY, ADDITIONAL LIGHT LAKE EFFECT SNOW SHOWERS OR  
FLURRIES WILL STILL BE POSSIBLE THROUGH THE AFTERNOON, MAINLY IN  
THE VICINITY OF THE NY THRUWAY CORRIDOR. ELSEWHERE, MAINLY  
CLOUDY SKIES ARE EXPECTED, ALTHOUGH SOME PARTIAL SUNSHINE IS  
EXPECTED FOR THE WYOMING VALLEY-POCONOS-CATSKILLS. TODAY WILL BE  
THE LAST DAY OF THIS COLD STRETCH WITH TEMPERATURES WELL BELOW  
NORMAL, WITH HIGHS EXPECTED TO BE IN THE MID TEENS TO MID 20S.  
IT WILL BE BREEZY AS WELL (OCCASIONAL GUSTS OF 20-30 MPH  
POSSIBLE), SO IT WILL FEEL MORE LIKE THE SINGLE DIGITS OUTSIDE.  
 
HIGH PRESSURE BEGINS TO BUILD INTO THE REGION TONIGHT, WHICH  
WILL ALSO SHIFT WINDS TO A MORE SOUTHWESTERLY DIRECTION. AS A  
RESULT, WHATEVER LAKE EFFECT SNOW SHOWERS OR FLURRIES ARE LEFT  
SHOULD SHIFT TO THE NORTH/CLOSER TO THE LAKE ONTARIO SHORELINE.  
WINDS WILL ALSO GRADUALLY DIMINISH. LOWS ARE EXPECTED TO BE IN  
THE SINGLE DIGITS TO MID TEENS ALONG WITH PARTLY TO MOSTLY  
CLOUDY SKIES.  
 
HIGH PRESSURE WILL BE IN CONTROL ON SATURDAY, WHICH WILL BRING  
PRECIPITATION-FREE WEATHER AND PARTLY TO MOSTLY SUNNY SKIES. THE  
SOUTHWESTERLY FLOW WILL ADVECT IN A SLIGHTLY WARMER AIRMASS AND  
THEREFORE TEMPERATURES ARE EXPECTED TO BE CLOSER TO NORMAL  
(ALTHOUGH STILL A FEW DEGREES BELOW NORMAL). HIGHS ARE EXPECTED  
TO BE IN THE MID 20S TO MID 30S. WITH TEMPERATURES AROUND OR  
SLIGHTLY ABOVE FREEZING, COMBINED WITH THE STRENGTHENING LATE  
FEBRUARY SUN ANGLE, WE WILL FINALLY SEE SOME SLOW MELTING OF  
THE EXISTING SNOWPACK.  
 
 
   
SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/  
 
400 AM UPDATE...  
 
A WEAK UPPER LEVEL SHORT WAVE OVER CANADA DIPS INTO OUR REGION  
SATURDAY NIGHT INTO SUNDAY. THIS BRINGS A ROUND OF SNOW SHOWERS  
NORTH OF THE NYS THRUWAY. WESTERLY FLOW WILL HELP SUPPORT SHOWERS  
LASTING THROUGH MOST OF SUNDAY. OTHERWISE MOSTLY DRY CONDITIONS ARE  
EXPECTED OVER THE REST OF THE REGION. TEMPERATURES ON SUNDAY WILL  
CLIMB INTO THE LOW TO MID 30S AHEAD OF A WARMING TREND. OVERNIGHT  
TEMPERATURES WILL RANGE IN THE LOW TO MID 20S ACROSS THE REGION.  
 
SOUTHERLY FLOW SETTLES IN ON MONDAY ADVECTING IN WARMER AIR INTO THE  
REGION. TEMPERATURES ARE EXPECTED TO CLIMB ABOVE FREEZING BY THE  
AFTERNOON. OTHERWISE A CLIPPER SYSTEM DIVES INTO THE GREAT LAKES AND  
TRACKS EAST MONDAY AFTERNOON INTO THE EVENING. THERE CONTINUES TO BE  
UNCERTAINTY IN THE EXACT TIMING AND INTENSITY OF THIS SYSTEM. GFS  
SOLUTION HOLDS ON TO PRECIP THROUGH TUESDAY MORNING, MEANWHILE EURO  
AND CANADIAN SHOW A QUICKER EXIT. WITH BORDERLINE TEMPERATURES IN  
THE MID 30S TO MID 40S MONDAY, EXPECTING A MIX OF RAIN AND SNOW  
SHOWERS. OVERNIGHT LOWS WILL BE MORE MILD IN NATURE WITH  
TEMPERATURES IN THE LOW TO MID 30S.  
 
 
   
LONG TERM /TUESDAY THROUGH THURSDAY/  
 
400 AM UPDATE...  
 
ANOTHER SYSTEM QUICKLY FOLLOWS ON TUESDAY AS A SECONDARY  
FEATURE DROPS IN FROM CANADA. THIS WILL BRING ADDITIONAL RAIN  
AND SNOW SHOWERS TUESDAY INTO TUESDAY NIGHT. NORTHWEST FLOW  
FOLLOWS ON WEDNESDAY AS THIS SYSTEM EXITS WITH LAKE EFFECT  
SHOWERS POSSIBLE. OTHERWISE A BRIEF RIDGE BUILDS IN WEDNESDAY  
NIGHT INTO THURSDAY MORNING AHEAD OF A MORE PRONOUNCED SYSTEM.  
UPPER LEVEL TROUGH MOVES OVER THE GREAT LAKES ON THURSDAY WITH  
SOUTHERLY FLOW SETTING UP BEHIND AN EXITING RIDGE. THIS HAS THE  
POTENTIAL TO ENHANCE MOISTURE ADVECTION, BUT IT IS STILL TOO  
EARLY TO TELL. REGARDLESS OUR REGION IS LOOKING AT ADDITIONAL  
SHOWERS THURSDAY INTO FRIDAY. IN TERMS OF TEMPERATURES DURING  
THIS PERIOD, TUESDAY THROUGH THURSDAY WILL RANGE IN THE 30S AND  
40S DURING THE DAY WITH OVERNIGHT LOWS IN THE 20S AND 30S.  
 
 
   
AVIATION /09Z FRIDAY THROUGH TUESDAY/  
 
PERSISTENT LAKE EFFECT SNOW SHOWERS AND CLOUDS CONTINUE TO BRING  
MVFR TO FUEL ALTERNATE RESTRICTIONS AT ALL TERMINALS EXCEPT FOR  
KAVP (ALTHOUGH KAVP MAY SEE OCCASIONAL MVFR CEILING RESTRICTIONS  
LATER THIS MORNING). WHILE LAKE EFFECT SNOW SHOWERS WILL  
GRADUALLY END FOR MOST TERMINALS BY THIS AFTERNOON, LINGERING  
CEILING RESTRICTIONS ARE EXPECTED TO REMAIN THROUGH MOST OF THE  
REST OF THE TAF PERIOD (AT LEAST THROUGH 06Z SATURDAY). THERE  
WILL ALSO STILL BE A FEW LIGHT SNOW SHOWERS OR FLURRIES PRESENT  
IN THE AFTERNOON AT KSYR AND POSSIBLY KITH.  
 
OUTLOOK...  
 
SATURDAY...MAINLY VFR.  
 
SUNDAY...MAINLY VFR. LOW POSSIBILITY OF SEEING OCCASIONAL  
RESTRICTIONS AT KRME WITH LOWER CLOUDS AND POSSIBLE LIGHT SNOW  
SHOWERS.  
 
MONDAY THROUGH TUESDAY...RAIN/SNOW SHOWERS POSSIBLE ALONG WITH  
ASSOCIATED RESTRICTIONS.  
 
 
   
BGM WATCHES/WARNINGS/ADVISORIES  
 
PA...NONE.  
NY...NONE.  
 
 
 
 
 
SYNOPSIS...BJG  
NEAR TERM...BJG  
SHORT TERM...ES  
LONG TERM...ES  
AVIATION...BJG  
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