Does anyone know what causes the hole in the Eastern Adirondacks?
I'm watching the radar now and it looks like some precip is coming off the north end of Ontario and making it's way into the western side, as we normally see, but what causes the hole and the precip on the very eastern edge of NY and VT. Is that all from Champlain? Or is there some other affect here?
There are several factors at work. Champlain is part of it, but really only in NoVT. It has nothing to do with why Big K gets more snow.
It's all topography. The orientation of Green Mtn spine is a big reason. A long tall ridge that extends North/South, and at the northern end Northeast/Southwest which is even better.
Adk topography matters too. Its more like a bunch or disorganized peaks which disrupts the lake effect more and doesn't get nearly the orographics. For Gore to get lake effect you really need some kind of upper level enhancement.
Just west of Gore is a mini spine, west of Indian Lake. (Would have been a great place to put Gore actually.) That often snags the last of the lake effect before it gets to North Creek.
Also Jason is correct Gore is very far from the center of both the BTV and ALY radars. So it gets more than it looks sometimes.
"You just need to go at that shit wide open, hang on, and own it." —Camp
My impression is that most precip we see downstate comes up the coast, SW to NE and then up the Hudson valley. Greek and the very western cats supposedly benefit from lake effect that rolls all the way across the flatlands of CNY
Typically you see it blowing due east and just blasting Tug Hill, Black RIver Valley and maybe or maybe not the Western Adirondacks.
If that shifts a little SE, then the Allegheny Plateau becomes just like the Tug. You'll often see this driving on 90 to the East. Around Syracuse a lot of times you'll really start to pick up some snow where there could be none on the east side of Rochester. Then as soon as you pick up some elevation it starts to get really snowy. I think the major Finger Lakes have something to do with this as well, because they create kind of a large flat region in between the hills of CNY and those WNY. So that moisture has to travel a lot farther south of 90, and across those lakes to get that orograhic lift.
We get the same effect down in Bristol HIlls, then being the highest elevation areas for some ways to the east of Erie and south of Ontario. Really depends on which way the wind is blowing. There's also some serious microclimates down there. You could have 2" of snow and 10 degree warmer temps in the valleys and 2' of snow and cooler temps up on the tops of the hills, which are kind of flat plateau like. Makes it a little tricky for BC DH skiing as you don't want to drop down too far or you lose your snow pack. I guess every mountain has that effect, but you really notice it on those hills because the high elevation, flat tops cover a large area.