Lake-Effect Snow — Southeastern St. Lawrence, New York

2024-12-12 · Southeastern St. Lawrence, New York

Event narrative

Snowfall amounts were generally 8 to 20+ inches with 20 inches in Star Lake, 18 inches in Wanakena and 14 inches in Piercefield.

Wider weather episode

A favorable wind flow of cold air across Lake Ontario, due to a departing storm in eastern Quebec and high pressure across north-central Canada, allowed for a heavy lake effect snow event east of Lake Ontario. Snow band moved into portions of St. Lawrence and Franklin counties in New York before daybreak on December 12th and exited by the late evening hours. The result was a swath of 8 to 20+ inches across southeast St. Lawrence and southern Franklin counties.

Source: NOAA Storm Events Database, event_id 1220427. Narrative written by the NWS forecast office that issued the report.