As your friendly Connecticut snow-hating meteorologist, I must say: what meteorologist who calls himself a professional would deny that this one's the real deal??!
It's a snow bomb mostly for eastern and northern New England, NW Jersey and upstate NY.
There will be a period of a wintry mix or sleet around NYC, Long Island, southern/central NJ, and southwest toward Philly and Balto during Friday as 850 mb temps warm up temporarily. As the storm bombs and pulls twd the northeast Friday evening, NYC and LI will revert to snow for the balance.
I'm still skeptical about going as high as 2.5 to 3 feet of white stuff for the top amounts given the storm's speed of exit and lack of strong blocking North Atlantic ridge.
Okay...let's watch this baby unfold and have fun! :)
The funny thing happens with these type of systems is that they enhance rotational entities around them. It could be that the low can enhance the high to the north. If i can recollect here that high in lastnihjts run wasnt that big it was small and the models were warmer because of it. Now that the models have pickd up on the teleconnetivs better and the influences in between them that why the models have trended colder.