For areas here in NE OH, I think the worst snows most of us every remember usually came from Lake Effect events. The Friday after New Years Eve, January 3rd, was the worst snow I have seen all year, and it was a Lake Effect snow band. Folks on here invest too much into storms tracking from lows across the Midwest, and then you have to get into the exact position of the low, or the amount of dry air, etc. etc.
Lake Effect is where it's at.