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The OFFICIAL March 13-14 Winter Weather Thread (This is the B1G 1)

Updated...

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Wow, this is really setting up like the January 1996 blizzard (at least for Eastern PA, northern NJ and NY/Hudson Valley). And if it takes a slight right/ENE turn off the DMV instead of heading due N, the mixing issues in south Jersey will dissipate as well.
 
it could be the difference of as many as 4-6 inches...however sleet would just coat the snow making removal even more difficult...sleet in inches does not move with a shovel like snow does.
It also clogs the snow blower.
 
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Turning into quite the close call for I-95 corridor (NJTPK in NJ), with enough precip for 12-24", especially north of Trenton, but with about half of the main models now showing some sleet mixing in for a few to several hours, which would keep accumulations down somewhat - although the impact would be the same, as it's the mass of frozen precip that matters for snow removal/traction etc. For areas towards the coast, especially for coastal Monmouth and even interior Ocean, there's now a decent possibility of this storm being 1/3 snow, 1/3 sleet and 1/3 rain with maybe 4-8" of slop that the rain falls into (and won't melt) - and it's possible that areas south of Toms River see mostly rain after a few inches of snow/sleet. The other thing snow lovers don't want to see is any further shift in the actual track (as said below, it's almost beyond the time where the global models are useful and we watch surface, upper level and radar trends of the actual storm forming and evolving).

The problem is that nobody on the planet can predict the exact placement of a gradient that will likely go from 24" snow to 12" snow/4" sleet to 8" snow/3" sleet/1"rain to 4" snow/2" sleet/1.5" rain to 2+" rain over maybe 50 miles. It's simply impossible. What you hope is that that gradient is offshore so nobody has to make that call and you only worry about where the deformation bands set up to give more or less snow. Doesn't look like that will be the case, though. Will be interesting to see what the NWS and media forecasters say now - don't envy them on this one. Here's something one of my favorite mets (Wxoutlooksblog) said just a few minutes ago:

"For the NYC Metro Region with all the models out, some showing western Long Island and NYC itself to get the most snow, and others including the European model showing an extremely close call with sleet/rain mixing over western Long Island and possibly the city, probably the only thing left to do is to watch this storm develop and move hour by hour and see how far north and west the rain/snow/sleet mix and changeover lines get. It is such a close call on the European model, for example, that some of the computer generated snowfall forecast maps off of this very same model differ by 6" or so for this region with NYC/northwestern Long Island on the edge of a swatch of 12-18" snowfall to the southeast and 18-24" snowfall to the northwest. So, we will have to watch radar and surface observations to the south to see if and when certain portions of the NYC Metro Region mix with or change to rain and/or sleet tomorrow morning. This is called nowcasting and I hereby declare this historic March blizzard is now officially in nowcasting mode."

Edit: interestingly, the NWS didn't officially decrease the snowfall amount for Middlesex County (or Somerset and NW of Middlesex), as the updated blizzard warnings show, which just came out, so after all the model input.was considered - still at 18-24", but notes amounts could decrease due to sleet. We'll have to just watch and see now.

http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=phi&wwa=blizzard warning

BLIZZARD WARNING

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
300 PM EDT Mon Mar 13 2017

...An extreme situation is developing for portions of our area as
a MAJOR COASTAL STORM interrupts our usual daily routines on
Tuesday...

.A very strong winter storm could be life threatening for those
who do not pay attention to safety precautions Tuesday morning.
Low pressure developing off the Carolina coast this evening will
become an intense storm as it moves east of New Jersey midday
Tuesday. Swaths of excessive precipitation will develop along and
west of the track of the storm. Near blizzard conditions are
likely for a few hours in eastern Pennsylvania and portions of
northern New Jersey where snowfall rates of 2 to 4 inches per
hour are expected.

NJZ001-007>010-PAZ054-055-060>062-101-103-105-140615-
/O.UPG.KPHI.WS.W.0003.170314T0000Z-170314T2200Z/
/O.EXA.KPHI.BZ.W.0001.170314T0000Z-170314T2200Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks-
Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown,
Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading,
Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville,
Pottstown, Chalfont, and Perkasie
300 PM EDT Mon Mar 13 2017

...BLIZZARD WARNING IN EFFECT FROM 8 PM THIS EVENING TO 6 PM EDT
TUESDAY...

The National Weather Service in Mount Holly has issued a Blizzard
Warning, which is in effect from 8 PM this evening to 6 PM EDT
Tuesday. The Winter Storm Warning is no longer in effect.

* LOCATIONS...Eastern Pennsylvania and much of northern New
Jersey.

* HAZARD TYPES...Heavy snow and strong winds.

* ACCUMULATIONS...Snow accumulation of 18 to 24 inches.

* TIMING...Snow begins between 10 PM and midnight from southwest
to northeast across the warning area, becoming heavy at times
with snowfall rates of Three to four inches per hour for
several hours Tuesday morning. Snow will diminish late in the
day Tuesday.

* IMPACTS...The heavy snow will make many roads impassable and
may produce widespread power outages due to the weight of the
snow on tree limbs and power lines. Strong winds will lead to
blowing snow, reduced visibility, and additional power
outages.

* WINDS...Northeast 15 to 25 mph with gusts up to 40 mph.

* VISIBILITIES...Less than one-quarter mile for several hours.

* TEMPERATURES...In the mid 20s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

Must be living in an alternate reality. #'s the SNOW LOVER is saying rain at the shore, while bac, the SNOW HATER is posting Blizzard warnings.
 
Still showing 18-24 for New Brunswick ny National Weather Service which seems really aggressive with all the new info coming in
 
Okay, my stars are aligning.

I needed the storm to be bad enough that United would cancel my flight to Toronto tomorrow, thus assuring that I didn't have to go.

That flight has been cancelled.

So now I just need the storm to completely bust so that I don't have to do snow removal.
 
The jobsite Im working at is Piscataway is already shutdown for tomorrow. For some reason Im not confident were gonna get alot of snow outta this in the Hamilton/Trenton area
 
The jobsite Im working at is Piscataway is already shutdown for tomorrow. For some reason Im not confident were gonna get alot of snow outta this in the Hamilton/Trenton area

What's the expert opinion on this area and Lawrence/Princeton? Low end 10inch high 18inch?
 
Must be living in an alternate reality. #'s the SNOW LOVER is saying rain at the shore, while bac, the SNOW HATER is posting Blizzard warnings.

Bipolar reality....how about an indoor tailgate??? This is what happens when you have a snow day
 
Still showing 18-24 for New Brunswick ny National Weather Service which seems really aggressive with all the new info coming in

The issue is that the heavy snowbands will be setting up just to the NW of the mix line, so that puts the entire northern half of NJ (from about Trenton to Perth Amboy and all points north) squarely in the crosshairs for 18-30 inches. The updated snow map on NWS/Mt. Holly has that area in 18-24 inches, plus there is a pocket of 24-30 from northern Somerset County through southern Morris and all of Warren County and into the Poconos.
 
Must be living in an alternate reality. #'s the SNOW LOVER is saying rain at the shore, while bac, the SNOW HATER is posting Blizzard warnings.
I posted the blizzard warnings first, so not sure I can give you that, lol. Being an RU fan, I'm conditioned a bit to be a pessimist and ready for Lucy to pull the ball away - I'm excited about the storm but worried about a March-93 scenario, which was an awesome storm, but we "only" got 12" of snow and 3" of sleet (which is equivalent to about 12" of snow), instead of the 24" of snow we could've had. Same impact on shoveling and snow removal in terms of mass, but much less pretty and the aesthetics actually mean something to me.
 
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I posted the blizzard warnings first, so not sure I can give you that, lol. Being an RU fan, I'm conditioned a bit to be a pessimist and ready for Lucy to pull the ball away - I'm excited about the storm but worried about a March-93 scenario, which was an awesome storm, but we "only" got 12" of snow and 3" of sleet (which is equivalent to about 12" of snow), instead of the 24" of snow we could've had. Same impact on shoveling and snow removal in terms of mass, but much less pretty and the aesthetics actually mean something to me.
Just found it odd that the poster who accuses you of wishcasting did not give you props for posting a rain scenario while he posted a blizzard scenario. Thanks for all of the updates. Just hope the high tides and flooding are moderate in Sea Bright.
 
So will todays warmer weather have any impact on the storm? Forecast in Philly was for a high of 35. Its 43 now and sunny, a beautiful late afternoon.
 
there is a mini weenie panic on americanwx with the warmish NAM and RGEM which are two models in their deadly range right now. On the RGEM, The idea of warm air intrusion and sleet possibly all the way up to 78 is getting some worried. Here is that map, you can see what a huge difference in totals from just 20 miles

5mfo5y.jpg
 
So will todays warmer weather have any impact on the storm? Forecast in Philly was for a high of 35. Its 43 now and sunny, a beautiful late afternoon.


no...if it was 60 or 70 for a few days it could have prevented early accumulations but the rates will be so heavy that even then it wouldnt matter as the storm progresses
 
there is a mini weenie panic on americanwx with the warmish NAM and RGEM which are two models in their deadly range right now. On the RGEM, The idea of warm air intrusion and sleet possibly all the way up to 78 is getting some worried. Here is that map, you can see what a huge difference in totals from just 20 miles

5mfo5y.jpg
Sitting square under a 23" on this one in northern bergen
 
Feeling a bust at the shore.... in Monmouth county

Yeah. And for those who were pondering the meaning of "I95 Corridor" and why it seems to be some sort of landmark for winter storm forecasting, all that is clearly evident on this latest map.

5mfo5y.jpg
 
Looks like Bergen and Passaic are screwed regardless. Good luck to you central and south jersey folks on the bust out.
 
So will todays warmer weather have any impact on the storm? Forecast in Philly was for a high of 35. Its 43 now and sunny, a beautiful late afternoon.
None. Will be in the upper 20s before the precip starts and will stay below 32F for most of the I-95 corridor for most of the storm. Will also start overnight, so no March sun to affect the first half of the storm. Even the sleet is because it'll be above 32F a few thousand feet up and still below 32F at the surface. Of course, where it's warm enough for rain, it'll be above 32F.
 
no...if it was 60 or 70 for a few days it could have prevented early accumulations but the rates will be so heavy that even then it wouldnt matter as the storm progresses
I do think that is why the last storm failed along towns north of the Delaware River as we had days in the 60s before the quick change. As water takes longer to heat/cool it was the reason why PA river towns had big differences in nearby places. Having lived in Lavallette I know the impact of water on the weather
 
I do think that is why the last storm failed along towns north of the Delaware River as we had days in the 60s before the quick change. As water takes longer to heat/cool it was the reason why PA river towns had big differences in nearby places. Having lived in Lavallette I know the impact of water on the weather


also last storm was not anywhere near dynamic and prolonged, the rates only briefly were heavy as opposed to what this will be
 
The bald guy on the Weather Channel is doing a great job explaining the scenerios that could impact snow accumulations in the I95 corridor from DC to Philly to NYC with possible change to sleet and rain f
 
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also last storm was not anywhere near dynamic and prolonged, the rates only briefly were heavy as opposed to what this will be
Still the towns north of the river on that day had amounts less than towns south of the river.
Two days in Lavallette come to mind. I was a senior at Pt. Beach and it was raining in the morning but school was cancelled. Next day drive to school and there was a lot of snow in the ground just 10 miles from home. The other was the blizzard the night of the Giants win against Buffalo. The blizzard was confined to the barrier beaches. 10 miles in nothing.
 
What am I looking at in Newark gents?? First seemed like we'd be right in the worst of it, now the line seems to be tracking closer to me.
 
FWIW, the storm seems to be behind schedule in real time (based off of current radar presentations).
 
FWIW, the storm seems to be behind schedule in real time (based off of current radar presentations).

What schedule, there seems to be an initial very light band up through Delmarva, and touches south jersey.
 
Good luck to all you North Jerseyians tomorrow stay safe. Down here in Howell looks like we're getting maybe 4". I won't even have to shovel that, just drive over it with the truck.:)
 
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