dendrite

It’s coming onshore coastal NH now. There’s the overall inverted trough and then the more convective elements closer to the coast embedded.

Getting more of those NORLUN echoes snaking into PWM now.

3 minutes ago, DavisStraight said:

Why is this second area of snow away from the main? It's been an overperformer here.

Inv trough

Up to 1.5” with some good bursts of fluff. Getting a little breezy too.

23 minutes ago, Damage In Tolland said:

You get the point though. Track and extent north of snows etc 

It was right for the wrong reasons up here. 

You can see some of those convective elements offshore on GYX now. That should back near the coast and then maybe clip Cape Ann and the Cape later as the trough sags south. 

Yeah there’s going to be a migrating boundary for a couple of weeks surrounding Christmas. That SE ridge will occasionally flex its muscles and try to advect warm plumes our way, but the axis seems to be enough west that we’re going to be susceptible to late digging shortwaves that cut them off. But you can’t rule out a good warm sector or two sneaking in or at least some DSD days following a wedged day. Deets TBD.

9 minutes ago, dryslot said:

Some heavier stuff has moved in overhead, Good snow growth too, We shall see how long it last.

1.5-2” would be a win up here for this when it was looking like flurries 36hrs ago. 

9 hours ago, Torch Tiger said:

Is December a winter month again?

Yes but only if we sacrifice Jan and Feb. 

Rockport could get some sneaky good amounts if the more convective elements of that norlun swing through there. 3k nam is 4-6” there. 

24 minutes ago, mahk_webstah said:

Picking up a little bit here. Still light but accumulating in very pretty with 6 inches still on the ground.

Right around 1/2” new

But yeah, a heavier -SN

Looks like the inverted trough is firing up along the NH/ME border.

6 minutes ago, radarman said:

Yeah I just pulled up the 12/2 event where it was raining hard there and we don't really see anything similar.  Blockage/trees aren't going away obv.  In that event I do see very faint hints of filtering near the radar (very levels) along the isodop and the clutter removal may be 'tricked' by strong signal but velocity near zero...  

Today's event has much less signal especially near the ground. The low level winds are basically nil, metar at KTAN reporting calm so velocity is again near zero even though it's not associated with the isodop this time.  My guess is it's still thinking clutter in certain areas, or in this case maybe some other kind of false signal...  But it is definitely a filter of some kind not blockage.

 

Yeah that was my thinking…some filtering algorithm due to clutter.

I’m not a radar expert so I’m not sure what exactly is going on at BOX specifically. It doesn’t look like a tree/mtn/blockage issue. If you go up to 2 or 3 it improves a bit.

20 minutes ago, TauntonBlizzard2013 said:

That radar hole right over me is familiar. That’s popped up a few times over the last few years 

You’re near the radar. That’s not a real hole.

24.2° -SN

10 minutes ago, mahk_webstah said:

Well, jacked might be a little strong.  We are getting the tip of the tongue of the ivt?

“Tries”

That’s probably 2-4”/3-5” with ratios. 

9 minutes ago, mahk_webstah said:

Huh?

4 minutes ago, TauntonBlizzard2013 said:

3k NAM tries to demolish the cape 

A norlun band offshore merges in over the cape at the end.

3k nam tries to jack up here.

5 hours ago, moneypitmike said:

 

Who's are laughing at the Grinch.

 

 

 

6 minutes ago, moneypitmike said:

In three hours, someone will be saying "Congrats Dendrite".

I need a few of these.

4 minutes ago, Bryan63 said:

Putting out a slightly different map on social media.

These are the manual created maps. The others are generated by text probabilities.

Calculated some Cobb snow estimates from the 12z gfs and nam (respectively)

CON 0.0/0.1
PWM 0.1/0.4
BOS 0.9/1.1
ORH 0.7/0.5
PSF 1.9/0.7
EWB 3.5/3.7
HYA 0.8/3.7
BDL 0.7/0.3
HFD 3.2/1.0
HVN 1.3/2.5
GON 1.3/3.4
PVD 2.1/2.9

4 minutes ago, moneypitmike said:

Even managed to get me close to the 2-3 range.  I wonder if any of that is from stuff falling today.

I think it’s the low probability of a little weenie norlun I mentioned. That may explain the shape too.

Did mekster draw this?