My guess is that the enhancement was very significant this storm because of the delta between the sound (in the 40s) and the air temp (low teens). Essentially lake effect aided by the air rising 200-400 feet over the hills on the north shore.
if their air temp is 30 this probably doesn’t happen
SW Suffolk has been getting pounded for hours. Could be some 2 foot totals down there. Light to moderate snow north of there. Models picked up on this very well, south shore always progged to clean up.