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Ji

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Well, go to 8"

Feb 22

Jan 18

Dec 9

Mar 7

Nov 1

I'll give you it's muddled at 10" but one big problem once you get to that level is how few storms there are. I don't think you can really go past that and get anything of use. A 2' snowstorm is not likely at any time so you can look at them as flukes no matter when they happen. Perhaps the only thing you can take away about Dec is a big Dec storm, while more unusual, may have a tendency to go for a home run compared to other months -- at least IMO. But the IAD records are less than half as long as BWI/DCA so gathering much from them is difficult.

Ok fine you win :).

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No reports the past couple of hours from Oakland or Cumberland, which are usually good sites for tracking the rain-snow line in these events. Johnstown, PA flipped to snow in the past hour. Temp dropped from 36 to 33. But Altoona is still 43 with rain.

http://www.wispresort.com/wisp/info/w.webcam.aspx

Will be fun watching this over the next few hours.

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Snowing at wisp: http://www.wispresort.com/wisp/info/w.webcam.aspx

ULL is about to make its turn north. Not impressive yet but it kinda looks like it's going to connect with the precip out in front in a few hours. It will be interesting to see how much juice and energy it has once it gets into central to eastern NC. Around 6pm or so?

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Had to make some big changes in the northern areas… the boundary layer temperatures did not cool off as much as I thought it would on the models in addition to a quicker end to the snowfall.

20111207-08_MAsnowFinal.png

I think that a couple of areas will be able to top out just above 8 inches in the mountains, so I left a small area over some of the WV/MD pandhandles.

Snowfall totals should not get hurt too much after the transition to snow finally occurs as a small period of sleet during the transition could/should provide a decent base layer for the snow to accumulate on. Keep eyes and ears peeled for the possible thundersleet/thundersnow during the transition from rain, especially from the northern VA/DC region up through central PA.

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the 24 hr map on Plymouth shows maybe a little snow in NE Maine

that thing really speeds up once by us

it looks like it's a bit faster on the whole than 0z--i think that's been the trend all along.

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Keep eyes and ears peeled for the possible thundersleet/thundersnow during the transition from rain, especially from the northern VA/DC region up through central PA.

I'm glad you brought this up because I was wondering about it. Pretty good clash of airmasses along with a semi potent ull. That combination always makes things interesting even if it isn't going to snow much.

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It looks a tad better to me, but that doesnt really change anything

how so? the 0c 850 might be light 5 miles to the east at 0z.. there's a bit more precip in that panel but the next one has less precip and almost no change from 0z. 0c line slightly left -4c slightly right. the maps i have don't really tell a huge story though. but overall it looks basically the same to me.

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