I am curious to know what role enhanced SSTAs may have played boosting BL moisture leading to historic 12-24 h snow totals for interior PA-NY-VT-NH.

While 5-6"/hr rates not unheard of, for them to occur over a large region is rare & suggests anomalous moisture feeding the CCB. pic.twitter.com/KB8EpVnyyb

— Philippe Papin (@pppapin) December 18, 2020