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December 8/9 wave


psuhoffman

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I know it's not easy to ignore the something can still go wrong thought loop but.... this setup is actually a high probability of going right. There's nothing complicated. The southern stream river of precip already exists. We just have to wait until the hose is pointed at us. In 24 hours precip will be knocking on the door.  

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2 hours ago, Deck Pic said:

Solid run. Noticeably colder with solid QPF. Colder than the GFS.  The King retakes the throne. 

BS. Euro sucked on this.  No 2 ways abiut it in my mind. Too late to the party imho.

EDIT: I'm not trying to be confrontational,  so BS could be replaced with vehemently disagree. 

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Whhhhaaaa

Quote

.SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/...
The first widespread accumulating snowfall of the season seems
inevitable late tonight into Saturday for much of the area.
This is a significant change from the most likely scenario from
24 hours ago. What changed is 1) the southern stream surface low
ejecting off the southeast U.S. coast appears a little slower
and stronger, allowing the northern stream upper trough to catch
up and interact/partially phase with it as it passes; and 2)
the approaching northern stream trough takes on a neutral (as
opposed to positive) tilt, placing the area more squarely in
the favorable right entrance region of an amplifying upper jet
(quite strong, 200-knot max at 250 mb Friday night over northern
New England). Therefore, what was a lower (but non- zero)
probability solution this time yesterday now appears to be the
most likely scenario.

Right entrance region jet dynamics coupled with mid-level PVA
and frontogenesis would suggest some banded snow is possible.
Snowfall events driven by strong jet dynamics tend to
overperform, so have upped QPF/snowfall amounts, with 2-4" for
the I-95 corridor, and measurable back to the I-81 corridor.
This is consistent with the latest GFS/Euro trends as well as
ensembles which are coming into better agreement. But this is
still subject to change. A sharp cutoff on the northwest edge of
the precipitation is possible, with locally higher amounts
likely in any banded precipitation (most likely east of the
Blue Ridge). Boundary layer temperatures may be a couple degrees
above freezing through much of the event, but strong dynamics
likely overcome this. Also, the sun angle is at about its lowest
and least impactful point of the year, so even though most snow
will fall during the daytime hours Saturday, it should still
accumulate fairly well. If this scenario remains consistent for
another model cycle, then winter weather headlines will be
warranted.

 

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2 minutes ago, MillvilleWx said:

I'm kind of surprised to see them this bullish too, but setup looks great. Jebwalks on Saturday are going to be sweet. 

So used to watching the models go south when it comes to snow this was a pleasant surprise. Just started looking over things and so far i like what i am seeing. 

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Just now, showmethesnow said:

So used to watching the models go south when it comes to snow this was a pleasant surprise. Just started looking over things and so far i like what i am seeing. 

Hard not be happy about this one. Still want to see the 12z suite to confirm any final predicted totals, but thinking a wide spread 1-4" across the Western shores of the bay. I like 3-6" with local 8" between Easton over to SBY

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