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Feb 5 Upstate NY / North Country Winter Storm


CNYWxGuy

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qpf

Gotta' admire her spirit and refusal to back down...

Updated BGM HWO has split the cwa in half nw / se for this event, with moderate accumulations possible along and s / e of Bingo-Oneonta line...

HAZARDOUS WEATHER OUTLOOK

NATIONAL WEATHER SERVICE BINGHAMTON NY

325 PM EST THU FEB 3 2011

CHENANGO-OTSEGO-BROOME-DELAWARE-SULLIVAN-

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA.

DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A STORM IS EXPECTED TO DEVELOP ALONG THE EAST COAST COULD BRING A PERIOD OF SNOW ON SATURDAY THROUGH SATURDAY NIGHT. MODERATE ACCUMULATIONS ARE POSSIBLE WITH THE STORM.

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looks like a little warmup is comming up for a few days, mid 30s is unheard of lol

Saturday: Snow likely. Cloudy, with a high near 35. Southeast wind between 3 and 11 mph. Chance of precipitation is 60%.

Saturday Night: A chance of snow. Cloudy, with a low around 17. East wind 5 to 8 mph becoming west between 14 and 17 mph. Chance of precipitation is 50%.

Sunday: A chance of snow showers. Cloudy, with a high near 34. Chance of precipitation is 30%.

Sunday Night: Cloudy, with a low around 17.

Monday: A chance of snow. Cloudy, with a high near 35. Chance of precipitation is 30

http://forecast.weat...87&lon=-74.9928

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NWS has yet to update this afternoon but here is from this morn

CURRENT CONVECTION IN THE SOUTHEASTERN

U.S. SUGGESTS THAT ONCE THE STORM ORGANIZES...SOME CONVECTION

WILL OCCUR IN THE WARM SECTOR...SUGGESTING POTENTIALLY HIGHER

MOISTURE AND MORE NORTHERLY STORM TRACK DUE TO DOWNSTREAM UPPER

RIDGING. MANY AREAS COULD SEE SOLID TO HIGH END ADVISORY LEVEL

SNOWS...WHILE THE MID HUDSON VALLEY...NW CT AND SOUTHERN

BERKSHIRES COULD SEE MIXED PRECIPITATION.

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NWS has yet to update this afternoon but here is from this morn

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE ALBANY NY

500 PM EST THU FEB 3 2011

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/...

ANOTHER LOW PRESSURE SYSTEM WILL EJECT NORTHEAST FROM THE WESTERN GULF OF MEXICO AND RIDE NORTHEAST ALONG THE EASTERN SEABORAD SATURDAY AND SATURDAY NIGHT. AS USUAL...MODEL SOLUTIONS VARY CONSIDERABLY. WE ARE LOOKING AT SOLUTIONS RANGING FROM THE LOW CENTER HUGGING THE COAST...WITH HIGH PCPN AMOUNTS AND MORE MIXED PCPN...TO SOLUTIONS WITH THE LOW CENTERW ELL OFFSHORE...LIGHT PCPN AMOUNTS AND ALL SNOW. MIDDLE OF THE ROAD SOLUTION LOOKS BEST FOR RIGHT NOW AND FITS WELL WITH NCEP FORECASTS OF 4 TO 8 INCHES OF SNOW WITH THIS SYSTEM. WILL ALSO INCLUDE MIXED SNOW AND SLEET ACROSS THE EXTREME SOUTHEAST PART OF THE FORECAST AREA.

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qpf

It seems to me that the NAM has been way overdoing precip at this range quite consistently lately. I'm a seller, not a buyer. :thumbsdown:

My prelim take on Saturday system: FAST mover..may track a bit more west than OP models...QPF around 1/2 inch possible max of .70.

Figure .5-.6 for now for Albany..10:1 ration 4-8 inch event max snowfall. from CD west thru N thru E of there...mix even rain possible south of Albany at start then change to snow on tale end.

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HPC

PREFERENCE... 00Z/04-12Z/03 ECMWF BLEND

ALOFT... AFTER 24 HRS... THE 00Z GFS BECOMES QUICKEST COMPARED TO

THE 00Z NAM/ECMWF/CANADIAN. THE 00Z UKMET IS SLOWEST. AT THE

SFC... THE 00Z ECMWF/CANADIAN COMPARE WELL WITH EACH OTHER AND ARE

ON THE WESTERN SIDE OF THE ENSEMBLE GUIDANCE AS THE LOW DEEPENS

NEAR CAPE COD. THE 00Z GFS/GEFS MEAN ARE QUICKER AND DISPLACED TO

THE EAST/SOUTHEAST. THE 00Z UKMET IS WELL INLAND AS IT MAINTAINS A

SFC LOW WEST OF THE APPALACHIANS SATURDAY. GIVEN THE

SLOWER/WESTWARD TREND IN MOST OF THE GUIDANCE... WILL LEAN BETWEEN

THE TWO MOST RECENT AND FARTHER WEST ECMWF RUNS

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kbgm

THE GFS CONTINUES TO INDICATE JUST A

GLANCING BLOW FOR THE CATSKILLS/POCONOS (MAYBE A COUPLE OF INCHES

OF SNOW)...WITH LITTLE IF ANY PCPN FARTHER N/W. MEANWHILE...THE EC

IS TRENDING THE OPPOSITE WAY...NOW YIELDING UPWARDS OF AN INCH

QPF IN OUR SERN ZONES...WITH A GOOD QUARTER-INCH PLUS BACK

TOWARDS THE I-81 CORRIDOR. A CLOSER INSPECTION OF LAST NIGHT`S EC

RUN...HOWEVER...SHOWED SOMEWHAT OF A DISCONNECT BETWEEN ITS BEST FGEN

FORCING/ISEN LIFT...AND ITS MAXIMA IN QPF OUTPUT. FOR THIS

REASON...WOULD TEND TO LEAN AT LEAST MORE TOWARDS THE GFS. TWO

NOTES OF CAUTION...THOUGH. FIRST...A LOOK AT BLENDED TPW IMAGERY

SHOWS A NICE SURGE OF MOISTURE COMING NWD FROM THE GOMEX INTO

AL/GA/SC ATTM...WHICH SHOULD BE READILY AVAILABLE FOR THE

DEVELOPING CYCLONE TO USE. SECONDLY...THE EC IS NOT ALONE IN ITS

FARTHER W AND HIGHER QPF SCENARIO (GEM AND UKMET FOLLOWING

ALONG...ALTHOUGH HONESTLY NEITHER OF THESE MODELS HAVE PERFORMED

WELL LATELY).

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From KBUF:

THIS WEEKEND STARTS OFF WITH AN UNUSUALLY LARGE SPREAD IN SOLUTIONS

FOR ONLY A 36 TO 48 HR FORECAST. THE DIFFERENCES HINGE ON A CLOSED

500 MB LOW CURRENTLY ACROSS TEXAS...WHICH IS FORECAST TO LIFT

NORTHEASTWARD TOWARD NEW ENGLAND THROUGH SATURDAY NIGHT. THE MAIN

AREA OF DISAGREEMENT STEMS FROM HOW QUICKLY THIS LOW OPENS UP...WITH

SPREAD RANGING FROM THE GFS/NAM WHICH DEVELOP THE SURFACE LOW LATE

AND TO THE EAST...TO THE UKMET/RGEM WHICH HANG ONTO THE CLOSED UPPER

LOW LONGER AND SPREAD QPF BACK INTO WESTERN NEW YORK ON SATURDAY.

INTERESTING TO NOTE THAT NEARLY ALL GFS ENSEMBLE MEMBERS ARE

CONSISTENT WITH THE OPERATIONAL GFS SOLUTION...WHICH MAY SUGGEST

THIS IS MORE A FUNCTION OF HOW THE MODELS ARE HANDLING THIS

FEATURE...RATHER THAN AN INITIALIZATION ERROR. WITH NO STRONG READ

ON WHICH END OF THE SPECTRUM IS CORRECT...WITH HEDGE TOWARD A MIDDLE

OF THE ROAD FORECAST...BEST REPRESENTED BY THE 21Z SREF MEAN.

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RGEM doesn't cave....gives C/E/N Upstate into NE a nice moderate snowstorm (4-12" with some lollies in there)

NAM has moved a tiny bit toward the more western solutions, but gets it's NW precip field squashed by the confluent flow.

So does the H500 open up quick??? Or remain in tact to help us out (per RGEM and 00z EC, et el.)??

Ridiculous spread with such short leads.....

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RGEM doesn't cave....gives C/E/N Upstate into NE a nice moderate snowstorm (4-12" with some lollies in there)

NAM has moved a tiny bit toward the more western solutions, but gets it's NW precip field squashed by the confluent flow.

So does the H500 open up quick??? Or remain in tact to help us out (per RGEM and 00z EC, et el.)??

Ridiculous spread with such short leads.....

seriously! that piece of energy has been a pain in the ass since it came onshore so long ago.

hopefully you guys can cash in.

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Mixing issues in eastern NY from the CD south?

The 12z GGEM seems to indicate that as well. it looks like a rain snow mix at first transitioning to snow as the 850's crash.

Yeah, I'm beginning to think BGM has a legit chance at some mixing, especially along / S / E of I-86 / 88. Hell, if the UK / GGEM / RGEM are right, there could even be a transition to rain, especially in lower elevations and during periods of lighter precip before SLP slides underneath and off to the E.

With such a relatively marginal / stale airmass in place, this setup seems more typical of a early / late season winter storm where elevation can become a dominant factor in P-type. Personally, if I come out of this event with 3+ inches, I will call it a win and move on to the next one.

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