Its tough for your place to get a big one. You need a ton to go right. NW flow is very transient and doesn't use Ontario to the full. Your best outcome would be a big synoptic event with a cold NW arctic flow behind. That way you get 1-2' from the storm and 1-2' from the LES. West flow generates the strongest band off Ontario and WSW/SW off Erie. The "blockbuster" events off of both lakes are always in those 2 wind directions.