Some historian can correct me if I'm wrong but our biggest snow storm in recorded history for NW OH was in early March some time in the early 1900's after a very similar winter to what we currently in. It was something like 20"+. Not that I want that crap in March only to watch it melt away in a few days.
This will be the one that explodes and surprises everyone. It's kind of fun going into it not knowing what to expect. Definitely interesting watching the local TV Mets riding the line of that "not sure exactly what to expect" look.