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Upstate/Eastern New York


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Could be a weak lake response tonight..

Tonight a WNW flow of marginally cold air, with lake induced
equilibrium levels of 5-7K feet, will support a very modest lake
response in the wake of this weak system. This will support some
light lake effect snow south and southeast of Lake Ontario. In a
northwest flow it is difficult to pin down exactly where steadier
snows will be, with mesoscale guidance showing a possible connection
to Lake Huron. Some models suggest this will develop near Genesee
County, with others focusing on Wayne and Northern Cayuga later
tonight. Either way, accumulation will again be limited with an inch
or less at most locations, except an couple inches locally. Lake
effect snow extend south of Lake Ontario from Orleans to western
Oswego counties. Lowering inversion heights will allow this weak
lake response to mostly end by daybreak Sunday.
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I was thinking about how far the models have come. I started looking at these things almost 25 years ago. At first I think there were 3 or 4 available. I can remember the AVN, NGM and the Navy. The AVN (American I think) went out to 72 hrs and 120 at the 0z. But it jumped 72-84-96-120. 

Snowfall only went out to 48. 

Crazy how far they’ve come. I think it was someone from here who recently lamented that they’ve become sooo accurate it takes some of the fun out of it. 

Anyway, a few big wins for the old American model recently. It has outperformed the vaunted Euro by a good deal. 

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Behind the front, much colder Arctic air is inbound for Tuesday
night through the rest of midweek. Signals are starting to show
up for a possible significant lake effect snow event, including
potential Huron-to-Ontario connection, into at least portions
of Onondaga-Madison-Oneida counties and lasting through at least
Wednesday night and perhaps well into Thursday. At least scattered
snow showers and flurries can be expected elsewhere, especially
Twin Tiers northward. Also, wind chills will likely be below
zero at times Tuesday night-Wednesday morning.
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Well, as has been stated, gfs/fv3 pretty much winning on this one. Quick moving storm that will only give me 2-3” in ALB.
At least those of you in parts of Oswego Co will get hit! I’m quite jealous! My friends up at SUNY Oswego are excited they may finally get an event all to themselves!

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1 hour ago, TugHillMatt said:

Well I was going to try and get back to Redfield to work on packing some more and experience the lake effect snow event.

But it looks like the same garbage Westerly wind transition zone stuff we have had all winter.

U mean like this? Lol

 

snku_acc.us_ne (38).png

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Looks like the NWS is going day by day..

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM MONDAY TO 10 AM
EST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 7
  inches expected.

* WHERE...Extreme Northern Cayuga and Oswego counties.

* WHEN...From 4 PM Monday to 10 AM EST Tuesday.
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