What storm tracks are favorable for snow in the eastern United States? Articles like this one on a winter storm in the Northeast in 2011 indicate that storm tracks are important in snowfall amounts. But other winter storm tracks seem to produce more maritime tropical weather.
I know the heaviest snow usually falls to the west of the storm track where the cold air is located, but why do some storm tracks not produce any snow at all? What influences the storm tracks that causes them to be prolific sometimes and duds other times?