In our case, Arctic Blast Effect down from Canada.
But, powder snow is powder snow.
Best match of snowfall amount to liquid equivalent I could find (ie., with the recorded time lining up) is at Boston Airport, which at 6:00 today am had recorded 16.1” of snow (they’ve been a bit north of most of the heaviest persistent bands) and at 6:54 am today had accumulated 1.41” (melted). Best I can tell the precip quit (for now) right around 6 am. So... that’s a ratio of 11.42, which seems just a bit above average to me.
Areas like Orchard Park (66” as of 7 pm last night) got more thunder snow, I guess? All the “thunder snow” I’ve experienced (not near a large lake) was wet, but then I don’t live by a large lake. I’d think the issue with dry snow and the predicted winds for the weekend would be some pretty large drifts. When I lived in Kansas as a kid, a foot of snow with a strong Kansas wind behind it could make drifts easily 5-6 ft. high.