775  
FXUS61 KALY 100300  
AFDALY  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE ALBANY NY  
1000 PM EST SUN FEB 9 2025  
   
SYNOPSIS  
 
DRY CONDITIONS EXPECTED FOR MOST OF THE REGION THROUGH LEAST  
TUESDAY, EXCEPT FOR SOME LAKE EFFECT SNOW SHOWERS IN THE WESTERN  
ADIRONDACKS AND MOHAWK VALLEY TONIGHT THROUGH MONDAY NIGHT.  
SOME LIGHT SNOW MAY OCCUR TUESDAY NIGHT FOR AREAS WELL SOUTH OF  
ALBANY. THEN ANOTHER STORM COULD BRING WIDESPREAD WINTRY  
PRECIPITATION TO THE REGION WEDNESDAY NIGHT INTO THURSDAY.  
 
 
   
NEAR TERM /THROUGH MONDAY/  
 
KEY MESSAGE:  
 
- LAKE EFFECT SNOW SHOWERS AND COLDER TEMPERATURES TONIGHT  
THROUGH MONDAY.  
 
DISCUSSION:   
UPDATE...AS OF 1000 PM EST  
THE FORECAST REMAINS IN GOOD SHAPE  
WITH THIS UPDATE. THE MOST NOTABLE CHANGE WAS TO INCREASE  
TEMPERATURES AND SKY COVER GIVEN THE LATEST SCANS OF INFRARED  
SATELLITE AND THE MOIST, WESTERLY FLOW THAT WILL HELP TO SUSTAIN  
THEM. THE NEW LOW TEMPERATURE FORECAST IS MORE WIDESPREAD 10S  
WITH POCKETS OF SINGLE DIGITS IN THE SOUTHWEST ADIRONDACKS AND  
SOUTHERN GREENS, AND LOW 20S IN THE MID-HUDSON VALLEY. OTHERWISE,  
ALL ELSE REMAINS STEADY WITH ADDITIONAL DETAILS IN THE PREVIOUS  
DISCUSSION BELOW.  
   
PREVIOUS DISCUSSION  
[351 PM EST]  
A WEAK DISTURBANCE WILL MOVE ACROSS THE AREA LATE THIS  
AFTERNOON INTO THIS EVENING, BRINGING MAINLY SCATTERED SNOW  
SHOWERS TO THE W. ADIRONDACKS AND W. MOHAWK VALLEY WITH DRY  
CONDITIONS ELSEWHERE. ONLY MINOR ACCUMULATION OF AROUND 1" IN  
SOME SPOTS. OVERNIGHT, HIGH PRESSURE BUILDS EAST ACROSS THE OHIO  
VALLEY AND MID ATLANTIC REGIONS, WITH A ZONAL WESTERLY FLOW  
ALOFT ACROSS THE NORTHEAST. COLD ADVECTION WITH COLDER AIR ALOFT  
MOVING OVER THE GREAT LAKES WILL RESULT IN CONDITIONAL LAKE-  
INDUCED INSTABILITY DEVELOPING WITH A ~280-290 DEGREE FLOW  
TRAJECTORY IN THE MIXED LAYER, INVERSION HEIGHTS UP TO ~750 MB  
ALONG WITH SUFFICIENT MOISTURE BENEATH THE INVERSION. SO LAKE  
EFFECT SNOW SHOWERS WILL DEVELOP ACROSS PARTS OF THE MOHAWK  
VALLEY AND SW. ADIRONDACKS. LOW CONFIDENCE IN RESIDENCE TIMES  
FOR SNOWBANDS REMAINING OVER A GIVEN AREA WITH SOME OSCILLATION  
EXPECTED. SO AT THIS TIME WE ARE EXPECTING LIGHT ACCUMULATIONS  
OF 1-2" IN SOME SPOTS WITH NO ADVISORIES. LOWS WILL BE COLDER  
RANGING FROM SINGLE DIGITS IN THE ADIRONDACKS TO 10S ELSEWHERE.  
 
THE MIXED LAYER FLOW TRAJECTORY IS EXPECTED TO CONTINUE TO VARY  
BETWEEN 280-290 DEGREES ON MON, WITH LAKE EFFECT SNOW SHOWERS  
IN PROXIMITY OF THE W. MOHAWK VALLEY AND SW. ADIRONDACKS.  
FORECAST SOUNDINGS INDICATE INVERSION HEIGHTS LOWERING SLIGHTLY  
WITH DIURNAL EFFECTS ALSO ACTING TO WEAKEN SNOWBANDS TO MORE  
CELLULAR SNOW SHOWERS. SO ONLY AN ADDITIONAL DUSTING TO 1" IS  
EXPECTED. HIGH TEMPERATURES WILL BE BELOW NORMAL, AROUND 20F IN  
THE MOUNTAINS TO UPPER 20S/LOWER 30S IN THE VALLEYS. A NW BREEZE  
OF 5-15 MPH WILL MAKE IT FEEL COLDER.  
 
 
   
SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/  
 
KEY MESSAGE:  
 
- WEAK COASTAL LOW TUESDAY NIGHT INTO WEDNESDAY LOOKS TO REMAIN  
MAINLY SOUTH OF OUR REGION, BUT THERE IS A 20 TO 30 PERCENT  
CHANCE FOR AT LEAST ONE INCH OF SNOW IN THE MID-HUDSON VALLEY  
AND LITCHFIELD COUNTY, CT.  
 
DISCUSSION:  
 
SURFACE HIGH PRESSURE BUILDS EAST ACROSS THE MID ATLANTIC  
REGION MON NIGHT, WITH RIDGING EXTENDING NORTH INTO OUR AREA.  
THE MIXED LAYER FLOW BACKS TO A MORE WESTERLY DIRECTION,  
RESULTING IN LAKE EFFECT SNOW SHOWERS DRIFTING NORTHWARD INTO  
THE W. ADIRONDACKS. AN INCH OR TWO OF SNOW MAY ACCUMULATE THERE,  
WHILE THE REST OF THE AREA REMAINS DRY. TEMPERATURES WILL BE  
QUITE COLD MON NIGHT, WITH PARTLY CLOUDY SKIES AND RELATIVELY  
LIGHT WINDS MUCH OF THE NIGHT ALLOWING FOR GOOD RADIATIONAL  
COOLING. CLOUDY MAY INCREASE TOWARDS MORNING, BUT LOW  
TEMPERATURES STILL SHOULD DROP IN THE SINGLE DIGITS REGION-WIDE.  
 
ON TUE, A WEAK COLD FRONT WILL MOVE ACROSS THE REGION. THIS  
WILL BRING ISOLATED TO SCATTERED SNOW SHOWERS MAINLY TO HIGHER  
TERRAIN AREAS NORTH OF ALBANY WITH DRY CONDITIONS ELSEWHERE.  
TEMPERATURES WILL BE NOT AS COLD AS MON, BUT STILL SLIGHTLY  
BELOW NORMAL RANGING FROM 20S THE LOWER 30S.  
 
CONFLUENT SW FLOW ALOFT SHOULD SUPPRESS PRECIPITATION FROM A  
STORM SYSTEM TRACKING EAST ACROSS THE S. APPALACHIANS TO OUR  
SOUTH TUE NIGHT INTO EARLY WED. HOWEVER, DETERMINISTIC AND  
ENSEMBLE GUIDANCE HAVE TRENDED SLIGHTLY NORTH WITH THIS SYSTEM  
SO WILL INCREASE POPS ACROSS THE SOUTHERN PART OF THE AREA TO  
MENTION A CHANCE OF SNOW ALONG THE NORTHERN FRINGE OF THE  
SYSTEM. LONG RANGE FORECAST ENSEMBLE PROBABILITIES FOR > 1" SNOW  
ACCUMULATION ARE 20-30 PERCENT FROM AROUND KINGSTON SOUTH TO  
POUGHKEEPSIE AND NW CT WITH LESS THAN 10 PERCENT FROM ALBANY  
NORTH. IT WILL BE ANOTHER COLD NIGHT WITH LOWS MAINLY IN THE  
SINGLE DIGITS TO 10S.  
 
ON WED, SURFACE HIGH PRESSURE IS FORECAST TO BUILD EAST ACROSS  
QUEBEC WITH RIDGING EXTENDING SOUTH INTO OUR AREA. THIS SHOULD  
PROVIDE DRY CONDITIONS WITH TEMPERATURES CONTINUING TO RUN  
BELOW NORMAL (HIGHS MAINLY IN THE 20S).  
 
 
   
LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/  
 
KEY MESSAGES:  
 
- CONFIDENCE CONTINUES TO INCREASE IN A MIXED PRECIPITATION  
EVENT OCCURRING LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING  
WITH INCREASING PROBABILITIES FOR MEASURABLE SNOW AND AT LEAST  
A TRACE OF ICE ACROSS MUCH OF THE REGION.  
 
- ANOTHER STORM SYSTEM LOOKS TO IMPACT THE REGION NEXT WEEK  
WITH A TRACK THAT CURRENTLY FAVORS WIDESPREAD SNOW THROUGHOUT  
EASTERN NEW YORK AND WESTERN NEW ENGLAND.  
 
DISCUSSION:  
 
THERE WILL BE TWO MAIN OPPORTUNITIES FOR WIDESPREAD  
PRECIPITATION THROUGHOUT THE EXTENDED FORECAST PERIOD: A  
POSSIBLE MIXED PRECIPITATION EVENT WEDNESDAY NIGHT THROUGH  
THURSDAY AND A POSSIBLE SNOW STORM NEXT WEEKEND.  
 
A LOW PRESSURE CYCLONE WILL APPROACH FROM THE OHIO VALLEY  
WEDNESDAY NIGHT, ALLOWING ITS WARM ADVECTION-DRIVEN, STRATIFORM  
PRECIPITATION SHIELD TO SPREAD ACROSS THE REGION FROM SOUTHWEST  
TO NORTHEAST. WHILE PRECIPITATION WILL LIKELY BEGIN AS SNOW, A  
SURGE OF WARM AIR IN THE LOW TO MID-LEVELS WILL FORM A  
SUFFICIENT WARM NOSE TO LIKELY TRANSITION SNOW TO SLEET OR  
FREEZING RAIN BY LATE WEDNESDAY NIGHT/EARLY THURSDAY MORNING.  
THE EXACT PRECIPITATION TYPE, TIMING, AND LOCATION OF THE  
CHANGEOVER IS STILL UNCERTAIN AT THIS TIME. HOWEVER, WITH  
PROBABILITIES RANGING FROM 30 TO 50% ACROSS MUCH OF THE REGION  
WITH POCKETS OF 60 TO NEARLY 70% (HIGHEST PEAKS OF THE EASTERN  
CATSKILLS, BERKSHIRES, AND SOUTHERN GREENS) OF AT LEAST 0.01" OF  
ICE, CONFIDENCE IS CERTAINLY INCREASING IN THE OCCURRENCE OF A  
MIXED PRECIPITATION EVENT. THESE PROBABILITIES ARE SUPPORTED BY  
THE CONTINUAL NORTHWARD TREND IN THE TRACK OF THE PRIMARY LOW  
WHICH WOULD PROMOTE THE STRENGTHENING/EXPANSION OF THE WARM NOSE  
WITHIN THE WARM SECTOR OF THE SYSTEM. ONE THING THAT LOOKS TO  
CHALLENGE THIS EXPECTATION, IS THE POSSIBLE DEVELOPMENT OF A  
SECONDARY COASTAL LOW. WHILE MODELS HAVE SEEMED TO FORM SOME  
AGREEMENT THAT THERE WILL BE COASTAL DEVELOPMENT, IT ISN'T CLEAR  
YET WHERE EXACTLY IT FORMS RELATIVE TO OUR AREA. DEPENDING ON  
HOW CLOSE THE LOW HUGS THE COASTLINE, BEING ON ITS COLD SIDE  
COULD HELP TO CHALLENGE THE WARM NOSE AND POSSIBLY LIMIT THE  
SPATIAL EXTENT AND ACCUMULATION OF ANY SLEET/FREEZING RAIN. WILL  
CONTINUE TO MONITOR TRENDS OVER THE COMING DAYS.  
 
OUTSIDE OF SOME POSSIBLE LAKE EFFECT SNOW SHOWERS BEHIND THIS  
FIRST SYSTEM, REGIONWIDE DRY CONDITIONS WILL BE REINFORCED AS  
HIGH PRESSURE BUILDS IN FROM THE WEST. ATTENTION THEN SHIFTS TO  
SATURDAY AFTERNOON THROUGH SUNDAY WHEN YET ANOTHER LOW PRESSURE  
CYCLONE LOOKS TO BRING WIDESPREAD PRECIPITATION TO THE REGION.  
THIS TIME, HOWEVER, THE LOW LOOKS TO REMAIN DISPLACED TO OUR  
SOUTH BEFORE TRACKING OFF THE MID-ATLANTIC COAST. THIS TRACK  
WOULD KEEP US ON THE COOL SIDE OF THE STORM AND POTENTIALLY  
BRING SIGNIFICANT SNOWFALL TO THE REGION WITH PROBABILITIES FOR  
4" OR GREATER (ADVISORY-LEVEL SNOWFALL) RANGING FROM 30 TO 60%  
FROM SOUTH TO NORTH ACROSS THE REGION. WITH THIS SYSTEM BEING  
WELL INTO THE EXTENDED PERIOD, THE DETAILS ARE SUBJECT TO CHANGE  
SIGNIFICANTLY IN THE COMING DAYS. HOWEVER, WE WILL CONTINUE TO  
MONITORY TRENDS ON THIS SYSTEM AS WELL.  
 
THURSDAY WILL BE THE WARMEST DAY OF THE EXTENDED WITH HIGH  
TEMPERATURES RANGING FROM THE LOW TO UPPER 30S. THE REMAINDER OF  
THE PERIOD WILL SEE HIGHS IN THE 20S AND 30S. LOW TEMPERATURES  
WILL BEGIN GENERALLY IN THE 10S AND 20S WITH POCKETS OF SINGLE  
DIGITS IN THE SOUTHWEST ADIRONDACKS WEDNESDAY AND THURSDAY  
NIGHTS. FRIDAY NIGHT, LOWS WILL BE WIDELY IN THE SINGLE DIGITS  
TO LOW 10S BEFORE SATURDAY NIGHT RETURNS TO THE 10S AND 20S.  
 
 
   
AVIATION /03Z MONDAY THROUGH FRIDAY/  
 
VFR CONDITIONS THIS EVENING AT ALL TERMINALS WITH BKN - OVC CEILINGS  
AT 4-5KFT. LAKE EFFECT SNOW SHOWERS ARE STILL SPILLING INTO THE  
SOUTHERN ADIRONDACKS THIS EVENING AND WHILE HIGH RESOLUTION GUIDANCE  
SUGGESTS THESE SNOW SHOWERS WEAKEN AS THEY EXTEND EASTWARD, A FEW  
ISOLATED SNOW SHOWERS MAY REACH ALB AND PSF OVERNIGHT TONIGHT.  
SHOULD ANY SNOW SHOWERS ARRIVE, BRIEF MVFR CEILINGS ARE POSSIBLE.  
HIGHLIGHTED THE PERIOD FROM 06 - 10 UTC WITH A TEMPO GROUP TO  
INDICATE THIS POTENTIAL. GFL AND POU WILL REMAIN FAR ENOUGH REMOVED  
FROM SNOW SHOWERS AND WILL LIKELY REMAIN VFR. OTHERWISE, ANY MVFR  
CEILINGS AT ALB/PSF IMPROVE BACK TO VFR BY 12 UTC BUT BKN-OVC  
CEILINGS AROUND 4-5KFT CONTINUE THROUGH THE END OF THE TAF PERIOD.  
WESTERLY WINDS AROUND 5-8KTS THIS EVENING WEAKEN TO NEAR OR UNDER  
5KTS. HOWEVER, WESTERLY WINDS QUICKLY INCREASE TOMORROW MORNING BY  
14-16 UTC BECOMING SUSTAINED 5-8KTS AGAIN WITH GUSTS UP TO  
15KTS.  
 
OUTLOOK...  
 
MONDAY NIGHT: NO OPERATIONAL IMPACT. NO SIG WX.  
TUESDAY: NO OPERATIONAL IMPACT. NO SIG WX.  
TUESDAY NIGHT: LOW OPERATIONAL IMPACT. NO SIG WX.  
WEDNESDAY: NO OPERATIONAL IMPACT. NO SIG WX.  
WEDNESDAY NIGHT: HIGH OPERATIONAL IMPACT. DEFINITE SHSN...SN.  
THURSDAY: HIGH OPERATIONAL IMPACT. DEFINITE SHRA...SHSN...FZRA.  
THURSDAY NIGHT: LOW OPERATIONAL IMPACT. NO SIG WX.  
FRIDAY: LOW OPERATIONAL IMPACT. BREEZY. NO SIG WX.  
 
 
   
ALY WATCHES/WARNINGS/ADVISORIES  
 
CT...NONE.  
NY...NONE.  
MA...NONE.  
VT...NONE.  
 
 
 
 
 
SYNOPSIS...JPV  
NEAR TERM...GANT/JPV  
SHORT TERM...JPV  
LONG TERM...GANT  
AVIATION...SPECIALE  
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