Quote from user FXWX on the New England sub...
"Growing up during the age of Miller A's, I will say this... Some of the biggest busts I've witnessed and studied were intense Miller A storms. Error / bust potential is often much less when dealing with Miller B events. Given the historic look of the absurdly digging 500 mb trough, I would be very wary of this escaping too far east?
While history making events are always possible, that 500 mb evolution is beyond extreme! If it develops as modeled, then it's one for the record books. I think it would be wise to assume its (500 mb) intensity is not going to be as intense as modeled.
Lots to consider; where will the primary form, does it jump / reform well to the east, or does it get tugged westward, stall, loop, ???
Thumb through the Kocin book(s) and you will find examples of Miller A's that were expected to graze southeastern SNE, and to everyone's surprise, ended up throwing heavy snow back into eastern NY? Not saying this one will, but the evolution of the 500 mb level tells me this is not a simple escape east situation.
I think a more western track evolves on modeling tomorrow."