I'm also getting the distinct impression that this preceding airmass being hot garbage provides wide swings when you start looking at snowfall maps with little change in the upper levels. If we had a colder airmass in place, ratios wouldn't be as much of an issue considering the overall placement of the low pressure. It going a little farther south, as mentioned in the discussions, causes the better lift and the mechanics to cool off the atmosphere more quickly and comprehensively go along with it, and no one is sure if back side cold air can balance that out. A week ago we weren't even sure a snowstorm for a large part of the area could materialize considering the confidence in it being +10 to +20 for several days before hand and no cold front coming before it to inject cold air into the region.