On the GGEM, the PV shifted well north. But the system then went from closed to a flatter, open wave. Can't figure out why -- it almost looks like the PV diving further south spiked the eastern edge of the ridge, which amplified the storm.
Seems like it hung back a little the last day or so, and was more robust and north. But then another vortex dropped in from Maine to squash and starve it.
Can't recall such a long stretch of winter when there's no strong systems really anywhere outside the northwest. Even the long-range globals have given up inventing bombs. It's like the atmosphere is starved or something.
Western Mass is a solid upslope location following departing lows or from upper-air impulses. With the weekend system long gone, are this week's very persistent snows because of the juicier Pac air carried on west winds?