Both AIs look good. The legacy models have a long history of rushing and exaggerating pattern changes. Over the last three winters...prosperity was always just around the corner.
I have been doing some jet stream reading this morning. There is a cadre of researchers from reputable institutions arguing that cc actually slows the polar jet.
I have no clue who is right...or who is in the minority/majority....but some worthwhile reading nonetheless.
Goofus AI shows how it can be done. Basically, the right interaction where there is just enough cold air in eastern Canada for a juicy storm. Call it luck, ha ha.
Look at the NAM 500mb starting at 60 hours (ugh, I know). It is trying to create a second UL over eastern WV up into PA. Absolutely not modelled anywhere until now...
Both AIs show a possible nor'easter later next week, but look really good for an SWFE pattern after that. A repeat of 1/25...even at 2/3scale that would be nice.
Perhaps the transition away from PNAP is the moment for a good coastal?
ICON keeps the 500 closed low north of the Tidewater, rather than over Savannah. A rather radical change, I would think.
Edit: Not a huge change over itself, but far from the look of every other model.