When I think of overrunning, I imagine a WSW-ENE boundary that if I'm lucky, I'm north of with a big gradient between truly warm air and frigid conditions. Those setups can produce pretty big snows sometimes. However at least initially we will possibly get some snow from systems running up the baroclinic zone just offshore. Same idea but typically not as juicy. It appears that guidance now wants to potentially give us the opportunity to get clumps of qpf as they go by our latitude. The first one of concern is a potential 3-6+ event that models have in a good place for Sunday night/Monday. Whatever snow falls should stay on the ground for some time since next week is lining up to be quite cold. Did we start winter when NAO relaxed?