There used to be plenty of storm tracks that were good for that region-Miller A coast huggers mainly like 3/93 and 3/94. Now those have largely gone extinct or they develop too late and blast north and east of them. Other storm types dry up east of the Allegheny Ridge and redevelop for our area like this past clipper, SWFE events are sleetfests or freezing rain, and 95% of lake effect dries up from downslope. So the combination of those create the middle finger snow maps when you look at PA. You still rarely get decent ones like Dec 2020-was good there but nothing like 25 years ago. I’d say at this point it’s more than a temporary shift, it’s a larger more permanent shift away from storm types that favor them. I wouldn’t say it’s temps since they’re still cold enough much of the time.