Only thing better than watching you forecast mid atlantic snow is watching it verify as either 3 feet for @dendriteor 19" for me...best part wasn' the snow, but your dissapearence for a week, thereafter.
Especially with light fall rates, the residual cold will be slow to erode with any type of replenishing advection process at all...ironically enough we would be better off with heavy precip.
NAM has a myriad of different issues as a model, but I thermals fields in warm advection scenarios is not one of them.....its the one thing that I DO trust it with.