Buffalo, new york, experienced a snowstorm november 13–21, 2014. residents refer to the event as “snowvember.” what was the likely cause of this snowfall?

Explanation:

November 13–21, 2014 North American winter storm was a tragic event which is remembered until this days. Experts say that this "snowstorm" was originated from the Pacific Northwest, bringing a rich amount of lake-effect snow.

Lake-Effect snow occurs with cold air, when it pass across the open waters of the Great Lakes. Different variables as warmth and moisture are involved, when the air raises to atmosphere creates heavy snow falls.