jbenedet

I called the forecast north of I-90 trash not him

Wishcast away my friend.

I’m sorry this is worthy of the trash. There’s going to be a really sharp gradient along I90 ish. It’s going to be a great storm south of there. More of a “feast or famine...” The global guidance continues to flag significant dry air/subsidence, to the north of I90. That’s why snowfall total maps are not jiving well with the apparent precip shield to the north. To me, that’s a giant red flag that what will we be seeing is a lot of radar echoes with little/nothing reaching the ground. That 4-8, 2-6 area is going to bust very high, unless there are big changes between now and go time.

Good analog

Yea no kidding. This is pretty much exactly what he should want at this stage for being on the Cape in mid December. One, rare time I wouldn’t be worrying about p type issues either.

If the cold was advecting from the north west, we could get this to bend back north through traditional yntopic wave development...All of the cold is over our NNE heads and due north... it’s an East trajectory...sharp cutoff to the north...

Hope springs eternal.

It doesn’t. Was talking about ICON.

Support from models with poor verification scores isn’t forecast support. It’s just giving false sense of confidence.

The ukie looks like GFS through 72hr. I don’t buy that 1003 SLP at 96. It should be a stronger system further south...

Wagons south

Are we really resorting to the ICON? How have we reached this level of denial already....

947 mb low North of NL at hr 72 on the ukie. Weenie crusher....

That’s a red flag that the SLP is too far north imo. Disturbance can’t pump downstream heights into a 1038 mb Arctic high anchored over southern QC/NNE. The previous panel looks very similar to 12z GFS

The airmass and associated surface HP over NNE is a rock. That’s why the SLP gets shunted East despite sharper UL trough...

Right now NYC/LI is my “highest confidence area for a significant snowfall”. Right now looks like an all snow event down there to me. Very cold dews should make that attainable... and the mid levels are never an issue with this given the synoptic development.......

Good questions. My Basis—H5 shows lack of downstream ridging across guidance over eastern CONUS. At same time, the surface Canadian HP appears more sprawling/building rather than retreating...

The teleconnections support the GFS, imo. Where the arctic is tappable it will be effin cold. And the heart of it just so happens to be closest to NNE at the storms closest approach.

And you I guess on the EPS...you’re in a *much* better spot than me. This is a cloud forecast up here.

QPF looks seriously overdone on north side. 1034 HP anchored over Southern Quebec...might even be sunny in most of NNE... Looking more and more like a Northern Mid Atlantic snowstorm... Which is still great for southern CT, RI and SE MA folks...

AWT virga storm outside of SNE. south shore and cape special.

Virga storm for me I suspect on this one... Congrats to south shore folks. Looks like a good one down there...

Still getting stink bugs and leaf footed bugs in my place. Lawn is green. A few herb plants I never harvested in the garden are still alive.. Met Winter still a ways off....

Funny how this whole thread may come full circle to having to discuss @Typhoon Tip and his global warming thesis. Now this topic is relevant where 1-2C temp anomalies greatly alter the specific outcomes at the margin. And a bunch of us are —curiously— at the margin...I know, I know, it’s still early December climo, which is far from “peak winter” for a chunk of SNE. But I can’t help but look at everything for my area and connect a NWS forecasted 4” snowfall for my back yard on December 5, with a near perfect track/storm bombing in the GOM where we should be talking feet. Ultimately I think this forecast busts low. But* the fact that less than 6” is a high probability at this hr is quite something, imo. Everything would make much more sense if the date was Nov 20, and not Dec 5th... Which I guess is all I’m trying to say...

12z GFS coming around to “reasonable” but still looks too progressive over eastern CONUS. Doesn’t reflect a -NAO/-AO (unless of course there is a false signal, which I see as unlikely at this point). Slower, deeper, and further south is how I expect this to correct in future runs (with subtlety of course)... I still think this evolves more to a Miller B look, with very dynamic cyclogenesis close to the BM. Either way, very excited to finally have a big storm potential to watch with serious interest.