Looking back, The Euro had thursday's snow even on Saturday 01/11 so i think its been the first to pick up on it and the other models are starting to follow.
Yes, Foot is generally the ceiling, Unless this morphs into more of a Miller B, A lot of these end up in the 6-10" range, I would say as modeled right now, Its probably on the higher end of the ceiling.
18z Euro was even sharper with the H5 trough for thurs then the 12z run, 18z GFS was starting to come around too, This threat has some legs it seems for CNE/NNE