Yeah that storm was a huge temp rollercoaster. In CT we had a few inches of snow, heavy rain with temps in the mid 40s, then another inch of snow and a flash freeze. School buses were getting into accidents the next morning.
The SE ridge is the only feature of this storm that immobile, incompressible and inevitable. The track of the high maybe within 300 miles of the axis of heaviest snowfall
Models are showing a dryslot near I81 where the coldest air would be. Kind of a screwjob until you get to central PA on the GFS or upstate NY on the CMC.