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January 25th snow


tmagan

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Not with a southerly wind.  You need CAA for lake/bay/sound/ocean effect snow.

 

Huh?

 

http://www.northshorewx.com/oes20050119.asp

 

 

 

On January 19, an approaching Alberta Clipper quickly turned the winds starting just above the surface to a long south-southwesterly fetch over the relatively warm ocean water (7C) while temperatures above the surface remained very cold. The temperature difference (Delta-T) between the sea surface and the atmosphere about a mile up (850mb) remained near 18C throughout the day.
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We're still getting 0.5" - 1.5" like everyone else. Even if we go above freezing, we have snow on the ground, it's going to stick.

I'm not worried about temps like I said the ocean is cold and the bays will be completely frozen by then. It's the normal downslope dry out that we see all year round. We couldn't buy rain this summer. I say a coating at best. I hope I AMA wrong

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I'm not worried about temps like I said the ocean is cold and the bays will be completely frozen by then. It's the normal downslope dry out that we see all year round. We couldn't buy rain this summer. I say a coating at best. I hope I AMA wrong

The SW wind might actually help Nassau stay at or below freezing since the wind is coming from snowcovered land. The last few NAM runs have eastern Suffolk briefly spiking into the upper 30s because of the longer trajectory over water.

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UPTON ,

 

You all fell asleep on this feature .

 

THIS WILL BE A QUICK MOVING SYSTEM...SO SNOW ACCUM SHOULD BE
GENERALLY LIGHT...COATING TO 2 INCHES...BUT LOCALLY UP TO 2-4 INCHES
IS POSSIBLE IN PATH OF BANDING AND/OR SNOW SQUALLS. THE HIGHEST
ACCUMULATIONS WOULD BE FAVORED ACROSS INTERIOR AND HIGHER ELEVATIONS
WHERE SNOW RATIOS WILL BE HIGHER AND LIFT WILL BE ENHANCED
OROGRAPHICALLY.

IN ADDITION TO SNOW...GUSTY WINDS EXPECTED WITH 40 TO 50 KT LLJ
PASSING OVER THE REGION AHEAD OF THE FRONT RESULTING IN SW WINDS OF
20 TO 25 MPH WITH GUSTS OF 30 TO 35 MPH DURING THE DAY. PEAK GUSTS
TO 40 MPH POSSIBLE. THE COMBINATION OF ANY HEAVIER SNOW
BANDING/SNOW SQUALLS AND WINDS BRING POTENTIAL FOR BRIEF WHITE OUT
CONDITIONS. A PERIOD OF MODERATE TRAVEL IMPACTS POSSIBLE SAT AFT
INTO SAT EVE DUE TO COMBINED FALLING AND BLOWING SNOW REDUCING
VISIBILITIES AND UNTREATED AND ELEVATED ROADS BECOMING RAPIDLY
SNOW COVERED DUE TO FROZEN GROUND.

 

Kudos Bluewave , who loved the wind aspect of this 2 days ago

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UPTON ,

 

You all fell asleep on this feature .

 

THIS WILL BE A QUICK MOVING SYSTEM...SO SNOW ACCUM SHOULD BE

GENERALLY LIGHT...COATING TO 2 INCHES...BUT LOCALLY UP TO 2-4 INCHES

IS POSSIBLE IN PATH OF BANDING AND/OR SNOW SQUALLS. THE HIGHEST

ACCUMULATIONS WOULD BE FAVORED ACROSS INTERIOR AND HIGHER ELEVATIONS

WHERE SNOW RATIOS WILL BE HIGHER AND LIFT WILL BE ENHANCED

OROGRAPHICALLY.

IN ADDITION TO SNOW...GUSTY WINDS EXPECTED WITH 40 TO 50 KT LLJ

PASSING OVER THE REGION AHEAD OF THE FRONT RESULTING IN SW WINDS OF

20 TO 25 MPH WITH GUSTS OF 30 TO 35 MPH DURING THE DAY. PEAK GUSTS

TO 40 MPH POSSIBLE. THE COMBINATION OF ANY HEAVIER SNOW

BANDING/SNOW SQUALLS AND WINDS BRING POTENTIAL FOR BRIEF WHITE OUT

CONDITIONS. A PERIOD OF MODERATE TRAVEL IMPACTS POSSIBLE SAT AFT

INTO SAT EVE DUE TO COMBINED FALLING AND BLOWING SNOW REDUCING

VISIBILITIES AND UNTREATED AND ELEVATED ROADS BECOMING RAPIDLY

SNOW COVERED DUE TO FROZEN GROUND.

 

Kudos Bluewave , who loved the wind aspect of this 2 days ago

Steve D says 1-3"

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UPTON ,

 

You all fell asleep on this feature .

 

THIS WILL BE A QUICK MOVING SYSTEM...SO SNOW ACCUM SHOULD BE

GENERALLY LIGHT...COATING TO 2 INCHES...BUT LOCALLY UP TO 2-4 INCHES

IS POSSIBLE IN PATH OF BANDING AND/OR SNOW SQUALLS. THE HIGHEST

ACCUMULATIONS WOULD BE FAVORED ACROSS INTERIOR AND HIGHER ELEVATIONS

WHERE SNOW RATIOS WILL BE HIGHER AND LIFT WILL BE ENHANCED

OROGRAPHICALLY.

IN ADDITION TO SNOW...GUSTY WINDS EXPECTED WITH 40 TO 50 KT LLJ

PASSING OVER THE REGION AHEAD OF THE FRONT RESULTING IN SW WINDS OF

20 TO 25 MPH WITH GUSTS OF 30 TO 35 MPH DURING THE DAY. PEAK GUSTS

TO 40 MPH POSSIBLE. THE COMBINATION OF ANY HEAVIER SNOW

BANDING/SNOW SQUALLS AND WINDS BRING POTENTIAL FOR BRIEF WHITE OUT

CONDITIONS. A PERIOD OF MODERATE TRAVEL IMPACTS POSSIBLE SAT AFT

INTO SAT EVE DUE TO COMBINED FALLING AND BLOWING SNOW REDUCING

VISIBILITIES AND UNTREATED AND ELEVATED ROADS BECOMING RAPIDLY

SNOW COVERED DUE TO FROZEN GROUND.

 

Kudos Bluewave , who loved the wind aspect of this 2 days ago

 

You know the delta T's are looking a little better this run and there is the hint of some ocean

enhancement  potential on the 4km for parts of LI. But in any event, this is a rare snow set up due

to how cold it is for us to get snow on winds gusting over 40 mph from SSW to SW. We have the 

Northshorewx analog wind trajectory off ocean  from 2005, but with stronger winds.

 

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You know the delta T's are looking a little better this run and there is the hint of some ocean

enhancement potential on the 4km for parts of LI. But in any event, this is a rare snow set up due

to how cold it is for us to get snow on winds gusting over 40 mph from SSW to SW. We have the

Northshorewx analog wind trajectory off ocean from 2005, but with stronger winds.

rad36.gif

Hypothetically speaking if winds are that strong and it's snowing for more than 3 hours, it could be a blizzard right?

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You know the delta T's are looking a little better this run and there is the hint of some ocean

enhancement  potential on the 4km for parts of LI. But in any event, this is a rare snow set up due

to how cold it is for us to get snow on winds gusting over 40 mph from SSW to SW. We have the 

Northshorewx analog wind trajectory off ocean  from 2005, but with stronger winds.

 

attachicon.gifrad36.gif

 

The SW flow from over the ocean, sets up a tight thermal gradient, that might enhance snow banding/squalls, over LI/CT tomorrow:

 

2mnm6c1.jpg

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Hypothetically speaking if winds are that strong and it's snowing for more than 3 hours, it could be a blizzard right?

I believe there is nothing in the definition of a blizzard that includes snow amounts that are expected to fall so an inch or 2 could be a blizzard for a period of time if all the other requirements are satisfied - also a good chance of a ground blizzard tomorrow the combination of all the snow on the ground already on the ground from the last storm and whats falling from this one blowing around causing white outs

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The SW flow from over the ocean, sets up a tight thermal gradient, that might enhance snow banding/squalls, over LI/CT tomorrow:

2mnm6c1.jpg

Happened in 05 when I was in laurel hollow just to my east.

Gona n in LH tomrrw. But I think OES could b aimed at Suffolk

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I believe there is nothing in the definition of a blizzard that includes snow amounts that are expected to fall so an inch or 2 could be a blizzard for a period of time if all the other requirements are satisfied - also a good chance of a ground blizzard tomorrow the combination of all the snow on the ground already on the ground from the last storm and whats falling from this one blowing around causing white outs

Didn't North Dakota have a blizzard warning with a inch of snow expected a couple of weeks ago?
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Mount holly

SINCE THE GROUND IS ICE COLD...WHATEVER FALLS WILL STICK.

MODELS ARE FCSTG .1 TO .25 QPF WESTERN NJ E PA AND E MD. AM PROBABLY

POSTING A SNOW ADVY FOR PTNS OF E PA AT 2030Z PENDING 12Z MODEL

REVIEW. MOST OF THE SNOW OCCURS 15Z-21Z. SNOW GROWTH IS MODEST SO

NOT A BIG FLUFF FACTOR EXPECTED AND SW RATIOS PROBABLY CLOSE TO 11

OR 12 TO 1. WILL REREVIEW SW RATIOS LATER TODAY. HWO HAS BEEN

UPDATED FOR SLIGHTLY HIGHER AMTS AND THE UPDATED SNOWMAP WAS POSTED

AROUND 10 AM. WILL REPOST AS SOON AS CONFIDENT OF HIGHER AMTS I95.

AS IT STANDS WE WILL PROBABLY ADD AN INCH OF SNOW TO THE MAP FOR

THE I95 CORRIDOR EASTWARD ALMOST TO THE COAST IN THE MIDDAY

UPDATE.

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Mount holly

SINCE THE GROUND IS ICE COLD...WHATEVER FALLS WILL STICK.

MODELS ARE FCSTG .1 TO .25 QPF WESTERN NJ E PA AND E MD. AM PROBABLY

POSTING A SNOW ADVY FOR PTNS OF E PA AT 2030Z PENDING 12Z MODEL

REVIEW. MOST OF THE SNOW OCCURS 15Z-21Z. SNOW GROWTH IS MODEST SO

NOT A BIG FLUFF FACTOR EXPECTED AND SW RATIOS PROBABLY CLOSE TO 11

OR 12 TO 1. WILL REREVIEW SW RATIOS LATER TODAY. HWO HAS BEEN

UPDATED FOR SLIGHTLY HIGHER AMTS AND THE UPDATED SNOWMAP WAS POSTED

AROUND 10 AM. WILL REPOST AS SOON AS CONFIDENT OF HIGHER AMTS I95.

AS IT STANDS WE WILL PROBABLY ADD AN INCH OF SNOW TO THE MAP FOR

THE I95 CORRIDOR EASTWARD ALMOST TO THE COAST IN THE MIDDAY

UPDATE.

Yep, they're definitely a bit more bullish than I'd expect for this storm in both the Philly and NYC offices.  Latest snowfall maps would be nice if they verified.  Could use 1-2" to freshen up the snowpack...

StormTotalSnowWebFcst.png

 

StormTotalSnowFcst.png

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Hwo

HAZARDOUS WEATHER OUTLOOK...UPDATED

NATIONAL WEATHER SERVICE MOUNT HOLLY NJ

127 PM EST FRI JAN 24 2014

DEZ001-MDZ008-NJZ001-007>010-012>020-026-027-PAZ060>062-070-071-

101>106-251830-

NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-

WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-

NORTHWESTERN BURLINGTON-OCEAN-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-

BERKS-LEHIGH-NORTHAMPTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-

EASTERN CHESTER-WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-

LOWER BUCKS-

127 PM EST FRI JAN 24 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...NORTHEAST

MARYLAND...CENTRAL NEW JERSEY...NORTHERN NEW JERSEY...NORTHWEST NEW

JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA AND

SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PERIODS OF SNOW ARE EXPECTED SATURDAY WITH 1 TO 3 INCH ACCUMULATIONS

LATE MORNING INTO THE EVENING...MOST OF IT ACCUMULATING DURING

MIDDAY OR THE EARLY AFTERNOON.

ADDITIONALLY, VERY COLD TEMPERATURES WILL CONTINUE THROUGH AT LEAST

THE MIDDLE OF NEXT WEEK WITH THE ONLY DAY ABOVE FREEZING BEING EARLY

MONDAY.

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18z NAM looks great for up here in NW NJ... (and Eastern PA).  Kind of gets 'eaten up' by hr 32.

The NAM handled this past storm so well, I'm really hoping that .1-.175" swath of precip pushes farther east. I honestly feel like with all the other models trending drier the 00Z NAM tonight may not be as moist  :thumbsdown:

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Winter Weather Advisory

 

 

URGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE MOUNT HOLLY NJ210 PM EST FRI JAN 24 2014NJZ001-007-009-PAZ060>062-101>103-105-251000-/O.NEW.KPHI.WW.Y.0005.140125T1500Z-140125T2200Z/SUSSEX-WARREN-HUNTERDON-BERKS-LEHIGH-NORTHAMPTON-WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS-INCLUDING THE CITIES OF...NEWTON...WASHINGTON...FLEMINGTON...READING...ALLENTOWN...BETHLEHEM...EASTON...HONEY BROOK...OXFORD...WEST CHESTER...KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...CHALFONT...PERKASIE210 PM EST FRI JAN 24 2014...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 5 PM ESTSATURDAY...THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTERWEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 10 AM TO 5 PMEST SATURDAY.* LOCATIONS...NORTHWEST NEW JERSEY, BERKS COUNTY, THE LEHIGH  VALLEY AND THE NORTHWEST PHILADELPHIA SUBURBS.* HAZARD TYPES...SNOW.* ACCUMULATIONS...2 TO 4 INCHES OF SNOW.* TIMING...SNOW SHOULD MOVE IN LATE SATURDAY MORNING AND CONTINUE  INTO SATURDAY AFTERNOON.* IMPACTS...SNOW WILL LIKELY COVER ROADWAYS AND MAKE FOR HAZARDOUS  TRAVEL. THE SNOW WILL ALSO CAUSE REDUCED VISIBILITIES. GUSTY  SOUTHWEST THEN NORTHWEST WINDS AT NIGHT WILL CAUSE BLOWING AND  DRIFTING OF SNOW.* WIND CHILLS...IN THE TEENS ON SATURDAY AND FALLING TO NEAR ZERO ON  SATURDAY NIGHT.* TEMPERATURES...IN THE LOWER TO MID 20S WHILE ITS SNOWING.* VISIBILITIES...AROUND HALF A MILE AT TIMES.* SATURDAY EVENING...WIDELY SCATTERED TO SCATTERED SNOW SHOWERS OR  SQUALLS MIGHT MAKE IT INTO THE REGION AND LOCALLY DROP AROUND AN  ADDITIONAL INCH OF SNOW.PRECAUTIONARY/PREPAREDNESS ACTIONS...A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSETRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITEDVISIBILITIES...AND USE CAUTION WHILE DRIVING. GIVE YOURSELFEXTRA TIME TO REACH YOUR DESTINATION. DO NOT TAILGATE.&&$$DRAG/GIGI
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