New York Snow 2024 Map. Lake effect snow occurs when cold air, often originating from canada, moves across the open waters of the great lakes. This interactive map shows the snowfall forecast for the capital region and hudson valley from 7 a.m.

A major winter storm could deliver some major cities in the northeast their first large snow in almost two years — or it could bring just a rainy mess. Up to 5 feet (64 inches) of snow could fall in watertown, new york,.