Moderate Upslope event Sunday Night in the northern Greens

[powderfreak]

I've been watching this for a couple days and its become clear that the
synoptic pattern will support the meso-scale processes which produce our
beloved upslope snow. The clipper charging across the Great Lakes today
will spawn a coastal low well off the coast of New England which will track
north into the Maritimes. First, as the coastal low develops, the clipper
low will hold back west across our region bringing a dusting-2" to the area
tomorrow.

With low pressure in the eastern Gulf of Maine and low pressure hanging back
across our area tomorrow, there will be an increasing pressure gradient and
low level jet developing just to our west due to the high building in behind
the short-wave. Once the clipper finally decomposes, that gradient will
rapidly fill eastward tomorrow afternoon in tandem with the coastal low
deepening.

Through a good portion of tomorrow the H85 winds are light out of the west
until the clipper low fills and then we go NW at 30-50kts tomorrow evening
with strong CAA (H85 temps go from -12C to -18C) in a cyclonic flow. With
RH above 90% at H85 and 70% at H7 during the CAA we'll most certainly see
the upslope machine turn on tomorrow evening and night. Meso-scale models
show QPF of .25-.5" with this event along the western slopes and spine which
is a dead giveaway that they're sniffing it out.

Here's how I think this will work out for the Sugarbush to Jay corridor...
-Periods of light snow tomorrow bring up to 2" through 4pm.
-Snow showers become heavier and steadier along the spine during late
afternoon and evening hours as we increase the effects of orographics.
-Snow showers continue into the morning hours of Monday before tapering off
as scattered flurries around sunrise.
-Total accumulations of 4-8" are possible for the 24hr period ending 7am
Monday up on the ski hills. In lower elevations and towns located in the
upslope region, 2-5" are possible.

-Scott

 

[KingM]

Not a big dump, but I'll take it.

 

[reefer]

Thank You! Little by little we are getting there....................

 

[powderfreak]

We just picked up a quick inch in Burlington from squalls... just drove back from Stowe and I89 was snow covered with very low visibility in heavy snow. Starting to look like winter again in the flats up here.

 

[thetrailboss]

We just picked up a quick inch in Burlington from squalls... just drove back from Stowe and I89 was snow covered with very low visibility in heavy snow. Starting to look like winter again in the flats up here.

Just got back from the 'bush. Was 89 as bad for you as it was for me? Whiteout conditions and cars everywhere. I went from 50 to 0 in like one mile...skidded a bit. Had to use my skiing skills to drive the car. Just went out with the GF and pushed cars up Pearl Street here in BTV. Again, just enough snow to fu*( up the roads, but not enough to have the plows ready. :roll:

Good news: skiing at Sugarbush is really getting good...we are almost in primo conditions and it is only December 7th!!! :beer:

 

[powderfreak]

Just got back from the 'bush. Was 89 as bad for you as it was for me? Whiteout conditions and cars everywhere. I went from 50 to 0 in like one mile...skidded a bit. Had to use my skiing skills to drive the car. Just went out with the GF and pushed cars up Pearl Street here in BTV. Again, just enough snow to fu*( up the roads, but not enough to have the plows ready. :roll:

Good news: skiing at Sugarbush is really getting good...we are almost in primo conditions and it is only December 7th!!! :beer:

Yeah man, 89 was pretty bad...especially in the Williston/Richmond stretch. Did you see that pick-up truck that flipped a couple times right before the Williston exit? They had fire, ambulance, state and local authorities, etc all over the place around 330p. As I was driving I was like sweet, its snowing a little harder now and then all the sudden it was like white-out w/ full on winter storm driving conditions.

I might have to head out tomorrow morning but me thinks we might have some wind hold at opening. Its going to crank tonight into the morning...and my house is getting rattled here on the corner of King and Pine in Burlington.

-Scott

 

[powderfreak]

Beautiful stuff going on in the Green Mtns tonight. Its dumping 1-2"/hr in the yellows on this radar.