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Upstate NY/North Country: Heart of Winter 2012


Logan11

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For L. Ontario, the meso models are pinging the Rochester area (or just east...an unusual occurance) as being near the max totals, with a single band becoming established early on w/connections to Geo. Bay:

wrf_precip36_F36.gif

I would normally be skeptical, however, the best lifting/convergence looks to slide over Geo Bay and establish a solid band nice and early (ahead of the arctic front), before any frictional or long axis convergence sets up, thus I see areas near and east of ROC and areas SW of SYR to be the "winners" of a half a foot or so over the next 24-36 hours..

Off, Erie, a healthy upslope event for areas well south of BUF look good, with again a solid 6-12" more by tomorrow evening....with the accompanying few lollies.

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Decent accumulation of snow today in WNY, at least by this winter's standards. About 4 inches IMBY.

LOCATION 24 HOUR TIME/DATE COMMENTS

SNOWFALL OF

/INCHES/ MEASUREMENT

NEW YORK

...CATTARAUGUS COUNTY...

PERRYSBURG 6.0 515 PM 2/11 TRAINED SPOTTER

...ERIE COUNTY...

CHEEKTOWAGA 3.5 603 PM 2/11 NWS OFFICE

KENMORE 3.2 500 PM 2/11 TRAINED SPOTTER

6 NW ALDEN 3.2 400 PM 2/11 NWS EMPLOYEE

2 NNE TONAWANDA 3.0 1200 PM 2/11 COCORAHS

...NIAGARA COUNTY...

NORTH TONAWANDA 3.1 515 PM 2/11 TRAINED SPOTTER

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A bit of a surprise when I checked the latest local forecast:

Tonight: Scattered snow showers, mainly after 3am. Mostly cloudy, with a low around 11. Wind chill values as low as -4. Blustery, with a northwest wind between 15 and 20 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

Sunday: Snow showers likely, mainly after 10am. Mostly cloudy, with a high near 21. Wind chill values as low as -6. Blustery, with a northwest wind between 14 and 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Sunday Night: Snow showers likely, mainly before 3am. Mostly cloudy, with a low around 9. Wind chill values as low as -3. Northwest wind between 9 and 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Is it possible?

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For L. Ontario, the meso models are pinging the Rochester area (or just east...an unusual occurance) as being near the max totals, with a single band becoming established early on w/connections to Geo. Bay:

wrf_precip36_F36.gif

I would normally be skeptical, however, the best lifting/convergence looks to slide over Geo Bay and establish a solid band nice and early (ahead of the arctic front), before any frictional or long axis convergence sets up, thus I see areas near and east of ROC and areas SW of SYR to be the "winners" of a half a foot or so over the next 24-36 hours..

Off, Erie, a healthy upslope event for areas well south of BUF look good, with again a solid 6-12" more by tomorrow evening....with the accompanying few lollies.

Yep! I've been watching the meso models also. Looks to be a decent to strong event for ROC. Unusual. But as we all know by now. there is almost NO forecasting for LES events on the south shore of Ontario. For example, here in West Irondequoit we had almost 5 inches of snow today on the N wind set up. I've been watching the kingston/ toronto LES radar light up in the last hour. I hope we get a bunch. I drove down to my folks house to get my xc skiis today and they had only had 2.5 inches of snow (they live in pittsford about 10 miles se of me). I hope the front kinda stalls over the south shore to enhance it a bit. All bets off. but i'm hopeful for another 5 or so. Thanks KING.

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The northwest flow should upslope it into the western Catskills. I think it would be mainly south of me.

I did get around a half inch of fluff over the course of this evening.

Nice collapse in the temperature over the last three hours..now down to 8F.

A bit of a surprise when I checked the latest local forecast:

Tonight: Scattered snow showers, mainly after 3am. Mostly cloudy, with a low around 11. Wind chill values as low as -4. Blustery, with a northwest wind between 15 and 20 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

Sunday: Snow showers likely, mainly after 10am. Mostly cloudy, with a high near 21. Wind chill values as low as -6. Blustery, with a northwest wind between 14 and 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Sunday Night: Snow showers likely, mainly before 3am. Mostly cloudy, with a low around 9. Wind chill values as low as -3. Northwest wind between 9 and 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Is it possible?

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It snowed pretty much all day here in Ithaca(tiny flakes though), and the wind was nasty in the late afternoon/early evening. Got about 2 inches with drifts of over 4 in a few places and many spots with nearly bare grass. Tomorrow looks like it could be our best event of the year, which is incredibly depressing... <_<

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Hey everyone! I've been poking my head in here every now and then, but it's been ages since I've posted anything. I'm glad to see the lakes are finally delivering the goods, especially in the ROC area which seems to have been the most snow-starved location in the lake belt region of Upstate NY these last few years. I can't help but think of Flurries right now (anyone who has been posting in this thread for 2+ years will know what I'm talking about) lol.

Just to throw some meteorological insight in here...I think the rest of today will feature a general multi-banded LES scenario with the heaviest activity becoming focused south of the Thruway as h85 winds veer to a more NW/NNW direction. A razor thin but very intense single band could remain in tact near the ITH-BGM corridor with a well-established connection up to Georgian Bay - and this is reflected on the WSETA run out of NWSFO BTV though I think its placement may be a bit off:

post-619-0-40802600-1329066395.gif

We could see a single band become re-established southeast of Lake Ontario this evening and tonight as winds back around to the WNW and the fetch increases while the inversion height remains high and delta-T's remain sufficient to generate decent lake-induced CAPE...so places from east of ROC through the SYR area might be able to squeeze out another 2-4"/3-6" by early tomorrow morning though the band will be transient in nature. Then it's back to the relatively mundane wx pattern we've been in for much of this winter, at least for the time being.

Enjoy the snow everyone!

Justin

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Latest Snowfall Reports:

..ALLEGANY COUNTY...

ALFRED 3.5 700 AM 2/12 CO-OP OBSERVER

WHITESVILLE 2.0 730 AM 2/12 CO-OP OBSERVER

WELLSVILLE 2.0 600 AM 2/12 CO-OP OBSERVER

...CATTARAUGUS COUNTY...

SALAMANCA 7.0 700 AM 2/12 CO-OP OBSERVER

WEST VALLEY 6.0 700 AM 2/12 COCORAHS

LITTLE VALLEY 5.0 700 AM 2/12 CO-OP OBSERVER

OLEAN 2.0 725 AM 2/12 CO-OP OBSERVER

...CHAUTAUQUA COUNTY...

4 SSE FREWSBURG 4.3 700 AM 2/12 COCORAHS

JAMESTOWN 4.3 700 AM 2/12 CO-OP OBSERVER

...ERIE COUNTY...

2 NE BOSTON 6.0 700 AM 2/12 COCORAHS

COLDEN 5.2 730 AM 2/12 CO-OP OBSERVER

2 SSW BLASDELL 5.0 700 AM 2/12 COCORAHS

2 SE GLENWOOD 4.8 700 AM 2/12 COCORAHS

BUFFALO 4.0 100 PM 2/12 NWS OFFICE

CLARENCE CENTER 4.0 700 AM 2/12 COCORAHS

WALES 3.8 700 AM 2/12 CO-OP OBSERVER

3 E WILLIAMSVILLE 3.8 700 AM 2/12 COCORAHS

WEST SENECA 3.5 700 AM 2/12 COCORAHS

EAST AURORA 3.4 700 AM 2/12 COCORAHS

TONAWANDA 3.3 700 AM 2/12 COCORAHS

KENMORE 3.0 700 AM 2/12 COCORAHS

...GENESEE COUNTY...

2 NE STAFFORD 3.7 700 AM 2/12 COCORAHS

...LEWIS COUNTY...

LOWVILLE 0.7 700 AM 2/12 CO-OP OBSERVER

...LIVINGSTON COUNTY...

4 WSW DANSVILLE 3.5 700 AM 2/12 COCORAHS

AVON 3.1 700 AM 2/12 CO-OP OBSERVER

PORTAGEVILLE 2.5 700 AM 2/12 CO-OP OBSERVER

...MONROE COUNTY...

ROCHESTER INTL ARPT 15.1 100 PM 2/12 ASOS

GREECE 14.0 1200 PM 2/12 TRAINED SPOTTER

3 NNW ROCHESTER 9.1 700 AM 2/12 COCORAHS

5 WNW ROCHESTER 8.5 700 AM 2/12 COCORAHS

4 SSE PITTSFORD 6.8 700 AM 2/12 COCORAHS

...NIAGARA COUNTY...

1 NE LOCKPORT 5.5 700 AM 2/12 COCORAHS

1 NE PENDLETON 5.3 700 AM 2/12 COCORAHS

1 NNE NORTH TONAWAND 4.5 700 AM 2/12 COCORAHS

6 E NIAGARA FALLS 3.0 700 AM 2/12 CO-OP OBSERVER

...ONTARIO COUNTY...

CANANDAIGUA 4.5 800 AM 2/12 CO-OP OBSERVER

GENEVA 4.2 800 AM 2/12 CO-OP OBSERVER

...OSWEGO COUNTY...

MINETTO 3.9 700 AM 2/12 COCORAHS

2 SSE PALERMO 0.6 600 AM 2/12 CO-OP OBSERVER

...WAYNE COUNTY...

SODUS 12.0 1000 AM 2/12 TRAINED SPOTTER

2 SW WALWORTH 9.6 700 AM 2/12 COCORAHS

2 NW PALMYRA 8.5 700 AM 2/12 COCORAHS

1 E NEWARK 6.6 700 AM 2/12 COCORAHS

...WYOMING COUNTY...

WARSAW 5.5 700 AM 2/12 CO-OP OBSERVER

3 N SILVER SPRINGS 4.0 700 AM 2/12 CO-OP OBSERVER

Nice event for Rochester area, especially the airport. Over 15 inches!

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Hey everyone! I've been poking my head in here every now and then, but it's been ages since I've posted anything. I'm glad to see the lakes are finally delivering the goods, especially in the ROC area which seems to have been the most snow-starved location in the lake belt region of Upstate NY these last few years. I can't help but think of Flurries right now (anyone who has been posting in this thread for 2+ years will know what I'm talking about) lol.

Just to throw some meteorological insight in here...I think the rest of today will feature a general multi-banded LES scenario with the heaviest activity becoming focused south of the Thruway as h85 winds veer to a more NW/NNW direction. A razor thin but very intense single band could remain in tact near the ITH-BGM corridor with a well-established connection up to Georgian Bay - and this is reflected on the WSETA run out of NWSFO BTV though I think its placement may be a bit off:

post-619-0-40802600-1329066395.gif

We could see a single band become re-established southeast of Lake Ontario this evening and tonight as winds back around to the WNW and the fetch increases while the inversion height remains high and delta-T's remain sufficient to generate decent lake-induced CAPE...so places from east of ROC through the SYR area might be able to squeeze out another 2-4"/3-6" by early tomorrow morning though the band will be transient in nature. Then it's back to the relatively mundane wx pattern we've been in for much of this winter, at least for the time being.

Enjoy the snow everyone!

Justin

Oh geez Flurries.... :lol:

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THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A LAKE EFFECT

SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO

1 PM EST MONDAY.

* LOCATIONS...SOUTHERN HERKIMER COUNTY.

* HAZARD TYPES...LAKE EFFECT SNOW AND SNOW SQUALLS.

* ACCUMULATIONS...3 TO 5 INCHES OF SNOW.

* TIMING...DEVELOPING LATE THIS EVENING AND THROUGH MONDAY

MORNING.

* IMPACTS...REDUCED VISIBILITIES WITH FALLING AND BLOWING SNOW AND

DEVELOPING HAZARDOUS TRAVEL CONDITIONS.

* WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* VISIBILITIES...REDUCED LESS THAN 1 MILE AT TIMES...LESS THAN ONE

QUARTER OF A MILE IN SQUALLS

KALB

1KM VISIBLE IMAGERY REVEALS EXTREMES FROM SKC TO OVC SKIES ACROSS

THE CWFA THIS AFTERNOON. SOME LIGHT RADAR RETURNS ARE ACROSS THE

CATSKILLS AND MID HUDSON VALLEY YET SURFACE DEWPOINT DEPRESSIONS

ARE RATHER HIGH AND EXPECTATIONS ARE WHAT IS REACHING THE GROUND

IS FLURRIES. UPSTREAM...ANALYSIS DOES SHOW UPSTREAM LAKE BANDS

BECOMING BETTER ORGANIZED AND ALIGNED. THIS IS DUE TO THE

DEPARTING TROUGH AXIS OFF THE NEW ENGLAND COAST PER THE H2O VAPOR

LOOP. FORECAST WIND TRAJECTORIES TONIGHT ARE EXPECTED TO BECOME

WEST-NORTHWEST AS INVERSION HEIGHTS CLIMB TOWARD 6K FEET. PER

LOCAL CSTAR RESEARCH...INLAND EXTENT IS EXPECTED TO BE RATHER HIGH

WITH SHEAR PROFILES EXPECTED TO RELAX SOMEWHAT WITHIN THE BOUNDARY

LAYER. NAM12/RUC13/HRRR ALL POINT TOWARD INCREASING CONVERGENT

SIGNATURES WITHIN THE 1000-850MB LAYER TONIGHT WITH THE FORECAST

MAXIMUM TIME-FRAME BETWEEN 03Z TONIGHT TO AROUND 15Z MONDAY.

MEANWHILE...BOUNDARY LAYER FLOW IS FORECAST TO BACK AFTER MIDNIGHT

AND THROUGH THE MORNING HOURS ON MONDAY AS WARM ADVECTION EVOLVES

ALOFT AS THAT UPPER TROUGH CONTINUES TO DEPART TO OUR EAST. THIS

IS WHEN SHEAR IS EXPECTED TO INCREASE AND INVERSION LAYERS ARE

PROGGED TO DROP TO BELOW 5K FEET LATE TONIGHT INTO MONDAY MORNING

WE WILL HOIST A LAKE EFFECT SNOW ADVISORY FOR SOUTHERN HERKIMER

COUNTY AS EXPECTATIONS ARE FOR THE LAKE EFFECT BAND COULD PRODUCE

UP TO 1 INCH PER HOUR FOR UP TO 4 HOURS WHERE INVERSION HEIGHTS

WILL BE MAXIMIZED

THESE BANDS OF SNOW MAY IMPACT THE CAPITAL REGION TOWARD THE

MORNING RUSH HOUR WHERE THE WIND TRAJECTORIES COULD ALIGN WELL

DOWN THE MOHAWK AND UPSLOPE TOWARD THE TACONICS AND BERKS FOR A

BRIEF TIME. HOWEVER...BANDS WILL BE MIGRATING NORTHWARD WHICH

SHOULD LIMIT ITS TIME DURATION. THE COMBINATION OF LOWERING

INVERSION HEIGHTS AND BACKING LOW LEVEL FLOW TRAJECTORIES WILL

DIMINISH LAKE EFFECT SNOW ACROSS THE DACKS. BY MONDAY

AFTERNOON...RIDGE AXIS BUILDS ACROSS NEW YORK WITH PT-MOSUNNY

SKIES AND NEAR SEASONABLE HIGH TEMPERATURES.

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