NNE Cold Season Thread 2020-2021

[wx2fish]

2 hours ago, PhineasC said:

The Christmas tropical disaster will wipe out a lot of hard work on the mountains. 

It'll be interesting so see how your area does on those sneaky NW flow uplsope events. I'm guessing pretty well.

Its Pittsburg's bread and butter. I'm sure your location is better synoptocally, but they do really well on the surprise 6-12"+ powderfreak specials. The type of pattern where every fropa drops 3-6"+

[backedgeapproaching]

27 minutes ago, powderfreak said:

I think it starts compressing on itself pretty fast at those amounts.  Unless you cleared and added the total to it, I think it could’ve snowed up to another 10” but only added a couple inches to the depth.  I think at 40” you probably only add an inch of depth if the snow rate is 3”/hr.  That’s extremely hard to maintain.  Even if snowfall tapered to 1-2”/hr there might have actually been no gain or even settlement.

Just an amazing high-end event.  The fact that there was 24-30” on the ground and gaining 6” per hour in snow depth is incredible to me.  Usually at 24” stuff starts to compress... but to stomp on the gas at that point up into the 40s for snow depth is insane.

I was pretty surprised to find 32" depth at 11am on Friday almost a full 24 hours after the heavy heavy stuff stopped in East Dorset. Pretty amazing that the 24hr state record could have also been in East Dorset at 730ft in the Valley if there had been an official observer or someone who cleared just once.  

Imagine the state record for VT being held in a somewhat snowhole above Jay, Stowe, Stratton, etc?  50 years from now weenies looking and saying how the hell is East Dorset the 24 hour record holder...lol. What could have been. Ha

[PhineasC]

Decent upslope signal appearing on the models for the midweek period before the tropical rains. 00z RGEM looks pretty good as a signal.

[powderfreak]

Crazy strong inversion this morning.

I had 15F at my house, 20F at 1500ft at the office... but snowmaking was shut down due to temps.

20F in the parking lot and no snowmaking?!  30F at mid-Mtn and 31F summit.

Every morning per tramway code we need to run all auxiliary power on the lifts, so the Gondolas back up diesel motors pump out some blue smoke when they start up... check out the visual representation of the low inversion just above the base area by the horizontal smoke layer.

[PhineasC]

The RGEM keeps printing out .30"+ liquid for the favored upslope areas, the GFS and NAM are less excited but still have a signal.

[wxeyeNH]

20 minutes ago, PhineasC said:

The RGEM keeps printing out .30"+ liquid for the favored upslope areas, the GFS and NAM are less excited but still have a signal.

Forget the .30".   More important.  Grab me a dozen lumpmeat crabcakes and I'll meet you off Exit 24 on Rt 93 tomorrow.  That is one thing that NNE does not have

[bwt3650]

A Christmas miracle?  Gfs has it snowing hard up here before midnight on Christmas Eve.  Would be nice to see more than one run of more than one model but it’s a start. 

[J.Spin]

6 minutes ago, bwt3650 said:

A Christmas miracle?  Gfs has it snowing hard up here before midnight on Christmas Eve.  Would be nice to see more than one run of more than one model but it’s a start. 

How a system like that one is going to play out for someone in your location is often night and day compared to what happens along the coast of SNE; for a spot like Jay Peak, we’re not even talking in the realm of miracles for a decent outcome.  It’s essentially the counterpoint to what went on during Winter Storm Gail in the Jay Peak area – while that type of an event is sort of a one-off/occasional thing, the look of the next week is more of a typical winter reality result.

There are actually four potential snow events in the next week though (today, Tue/Wed, Fri, and Sat/Sun), and that’s a pretty respectable pace, even for the Northern Greens.

[backedgeapproaching]

This shows the Dendrite/Gene area relative minimum for big events(at least to the rest of NE).  This map will look different now obviously. The second tweet

 

[dendrite]

Yeah I’ve had a few in that 18-21” range since 2006, but nothing over that. I’m assuming he didn’t get back to the early 2000s yet though since this area did well in a few events back then. Now my record daily snowfall is higher than ORH’s and my greatest storm is only 0.1” less.

[wxeyeNH]

1 minute ago, dendrite said:

Yeah I’ve had a few in that 18-21” range since 2006, but nothing over that. I’m assuming he didn’t get back to the early 2000s yet though since this area did well in a few events back then. Now my record daily snowfall is higher than ORH’s and my greatest storm is only 0.1” less.

I am not a good record keeper but it seems I get "stuck" in the 12-14" range for big events.  Maybe cause the down sloping from a north or northeast wind with the Whites in that general direction.  Perhaps because this storm was not deep and didn't have  a strong wind that helped somewhat?  Although I had the lowest visibilities I have ever had with a synoptic event I wish I was just 10 miles further south to see the true "deathband" rates.  Another thing I noticed when it was snowing at the 3-4" rates was that it just looked like fog outside.  So many flakes falling it was hard to discern the individual flakes unless you had a dark backdrop no more than 5 or 10 feet away.  

[LaGrangewx]

1 hour ago, backedgeapproaching said:

This shows the Dendrite/Gene area relative minimum for big events(at least to the rest of NE).  This map will look different now obviously. The second tweet

 

Cool map. I’ve seen his maps before. He does some pretty accurate post event analysis. Shows my areas max of about 2 feet pretty well. 

[J.Spin]

Snow just started falling here in Waterbury.

[qg_omega]

2 hours ago, backedgeapproaching said:

This shows the Dendrite/Gene area relative minimum for big events(at least to the rest of NE).  This map will look different now obviously. The second tweet

 

That’s mostly pd #2 and the gaps were filled in with this past storm

[J.Spin]

Event totals: 0.8” Snow/0.06” L.E.

 

We had radar echoes overhead for quite a while this afternoon here at our site, but it took a while for snow to actually present itself visually, presumably due to required moistening in the atmosphere.  Once it did get going, the snowfall rate was pretty heavy there for a bit, with flakes up to ¾” with a mix of other flake sizes.  As of the 6:00 P.M. observations time, the snowfall rate had tapered back to something lighter however.

 

Details from the 6:00 P.M. Waterbury observations:

New Snow: 0.8 inches

New Liquid: 0.06 inches

Snow/Water Ratio: 13.3

Snow Density: 7.5% H2O

Temperature: 26.2 F

Sky: Light Snow (1 to 4 mm flakes)

Snow at the stake: 4.5 inches

[Ginx snewx]

4 hours ago, wxeyeNH said:

I am not a good record keeper but it seems I get "stuck" in the 12-14" range for big events.  Maybe cause the down sloping from a north or northeast wind with the Whites in that general direction.  Perhaps because this storm was not deep and didn't have  a strong wind that helped somewhat?  Although I had the lowest visibilities I have ever had with a synoptic event I wish I was just 10 miles further south to see the true "deathband" rates.  Another thing I noticed when it was snowing at the 3-4" rates was that it just looked like fog outside.  So many flakes falling it was hard to discern the individual flakes unless you had a dark backdrop no more than 5 or 10 feet away.  

Like this

[powderfreak]

6 hours ago, backedgeapproaching said:

This shows the Dendrite/Gene area relative minimum for big events(at least to the rest of NE).  This map will look different now obviously. The second tweet

 

Nice find.  I feel like October 2011 crushed that minimum zone from western SNE into central NNE up at least to Dendrite.  That was another storm with a band of 18-24"+.  That map does show the mean storm vector though, ha.  New England is swaths of SSW to NNE direction bands of big totals.  This storm sort of bucked that trend with a strong block and oriented almost due west to east at one point in CNE.

[powderfreak]

Eyeballing 0.75-1.0" this evening at home.

Up at the hill it was also snowing pretty decently on the way home.

Such a contrast in energy from the hustle & bustle of the midday weekend environment, to this peaceful & quiet scene this evening.

[alex]

The new restaurant and food court up top at Bretton Woods are pretty awesome 

[JakkelWx]

That is absolutely wallpaper worthy.

[dendrite]

These numbers still make me laugh. It looks like a typo.

12/01 62.5  39.7 0.00       0.0  0
12/02 40.6  30.3 0.00       0.0  0
12/03 45.1  24.6 0.00       0.0  0
12/04 51.9  30.2 0.00       0.0  0
12/05 37.1  31.6 1.12       3.1  3
12/06 31.8  26.1    T         T  3
12/07 27.9  24.6 0.00       0.0  3
12/08 28.5  21.4 0.00       0.0  3
12/09 30.4  19.5 0.00       0.0  3
12/10 38.6  27.8 0.00       0.0  3
12/11 39.4  24.5 0.00       0.0  3
12/12 38.3  26.7 0.10       0.0  3
12/13 39.0  31.7 0.13       0.0  2
12/14 36.0  28.4    T         T  2
12/15 31.1  11.7 0.00       0.0  2
12/16 20.9   8.6    T         T  2
12/17 20.8  13.9 1.89      34.4 31
12/18 23.3   6.5 0.00       0.0 28
12/19 26.9  -0.9 0.00       0.0 21
12/20 26.2  14.6 0.01       0.2 19
                 3.25      37.7

 

[powderfreak]

17 minutes ago, alex said:

The new restaurant and food court up top at Bretton Woods are pretty awesome 

Wow, what a view.

[OceanStWx]

10 hours ago, dendrite said:

These numbers still make me laugh. It looks like a typo.

12/01 62.5  39.7 0.00       0.0  0
12/02 40.6  30.3 0.00       0.0  0
12/03 45.1  24.6 0.00       0.0  0
12/04 51.9  30.2 0.00       0.0  0
12/05 37.1  31.6 1.12       3.1  3
12/06 31.8  26.1    T         T  3
12/07 27.9  24.6 0.00       0.0  3
12/08 28.5  21.4 0.00       0.0  3
12/09 30.4  19.5 0.00       0.0  3
12/10 38.6  27.8 0.00       0.0  3
12/11 39.4  24.5 0.00       0.0  3
12/12 38.3  26.7 0.10       0.0  3
12/13 39.0  31.7 0.13       0.0  2
12/14 36.0  28.4    T         T  2
12/15 31.1  11.7 0.00       0.0  2
12/16 20.9   8.6    T         T  2
12/17 20.8  13.9 1.89      34.4 31
12/18 23.3   6.5 0.00       0.0 28
12/19 26.9  -0.9 0.00       0.0 21
12/20 26.2  14.6 0.01       0.2 19
                 3.25      37.7

 

Too many DIPAs and fell asleep on the keyboard?

[OceanStWx]

1 hour ago, powderfreak said:

Nice find.  I feel like October 2011 crushed that minimum zone from western SNE into central NNE up at least to Dendrite.  That was another storm with a band of 18-24"+.  That map does show the mean storm vector though, ha.  New England is swaths of SSW to NNE direction bands of big totals.  This storm sort of bucked that trend with a strong block and oriented almost due west to east at one point in CNE.

I actually really like how you can see the Benchmark SSW/NNE pivots but also the Mid Altantic WSW/ENE bands.

And of course my own personal budding weenie Bermuda triangle of disappointment in RI.

[alex]

28 minutes ago, powderfreak said:

Wow, what a view.

It was built primarily for summer weddings but doubles down nicely in the winter!

[powderfreak]

About an inch of new snow from last evening.

[J.Spin]

Event totals: 1.0” Snow/0.07” L.E.

 

We didn’t pick up any additional snow beyond what accumulated yesterday evening, so the above totals should be the final numbers for this event.

 

Details from the 6:00 A.M. Waterbury observations:

New Snow: 0.2 inches

New Liquid: 0.01 inches

Snow/Water Ratio: 20.0

Snow Density: 5.0% H2O

Temperature: 27.9 F

Sky: Mostly Cloudy

Snow at the stake: 4.5 inches

[dendrite]

The trees are still pretty caked up days later. Getting a little melting now with the temp creeping up to 31° for the first time in a week.

[PhineasC]

Just now, dendrite said:

The trees are still pretty caked up days later. Getting a little melting now with the temp creeping up to 31° for the first time in a week.

Your chickens will need a raft soon. 

[wxeyeNH]

29F  In the fog with dim sunshine.  Snowstake down to 13".   Not expecting this 12 hour thaw into the 40's with an inch of rain to melt the pack,  just turn it into a glacier.  Good for the turkeys but bad for the deer as they can't run through glaciated stuff  and the coyotes can outrun them.