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The big thing about that euro run is that it did not throw the TPV piece way east like the GFS did. Not much of a change.

I would call it a winter if this happened.

How cold has this year's first 10 days of December been in Chester County PA? Glad you asked - This is the 10th coldest start to December since records began way back in 1893. Of note 5 of the top 11 cold starts to December have all occurred since 2000.

Decent burst of snow this evening. Already a good inch here and still snowing. Roads are not good.

personally i’m wondering if there’s an inflection point where things blow up. 18z euro was teetering, honestly. we’ve been trending that way for a while model cycle now

Yeah…the low just escapes east before the real fun, but something to watch. Still a lot of good fronto on that run so SE areas would still prob get low end warning snows or close to it on 18z euro.

Yeah if you dig those heights on the southwest side, it will help that TPV lobe to drop into the void and pump up downstream heights to get the moisture transport northwest over land.

For Sunday?

euro is a nice moderate event, comes in more amped with the TPV leaning more southwest

Fantasy Christmas storm shows up again this evening runs with over a foot and half. WE can only dream. White rain all day here but at least it was some precip. Take.

could tell it was going to be more amped around here. PNA is better and heights are lower farther SW

Far SE areas look like they try to catch the developing CCB. That would prob be some violence on the Cape…esp if it can pop quickly as that vort catches up to sfc.

Euro is better than 12z.

"Christmas is cancelled!!" "Christmas Blizzard incoming!!!!!! (If GFS is right)"

Not enough for you to notice much of a change in Queens sensible temperatures since 1980 had the CO2 levels remained steady instead of rapidly climbing. Add 15-20% to snowfall totals from the late 1800s through the 1980s and the long term downward decline becomes even steeper.

Euro about the same as 12z. Just kind of torchy - limits what would have been a better hit.

yeah, vort really trying to buckle here

18z Euro is worse for most as its drier

What was the SWE of that snow? Drier snows melt down faster. More air in the pack with fluffier snows as well.

Euro looks better than 12z

18z Euro looks good.

Looks pretty. Not biting yet. I'll tell you who will be biting.... Some of the Facebook hype Masters.

And that's after the GFS backed way off the torch cutter from its 12Z. At 12Z it was 55 in BOS and 40 all the way up to YQB. Now it's 45 in BOS and keeps NNE in the low 30s through the event. It does bring the non-snow area into the 60s on the 23rd (happy Festivus) though. Those with snowpack would keep it setting the stage for this. I could live with the 18Z GFS (the 12Z was less enticing) but would love to suppress/CAD the 23rd a bit.

I wish this wasn’t fantasyland.