Winter Weather — Southwestern St. Lawrence, New York

2022-02-18 · Southwestern St. Lawrence, New York

Event narrative

Rain changed to freezing rain and accumulated to a tenth of an inch or less, followed by 1/2 to 1 inch of sleet then snowfall accumulating 2-4 inches created hazardous driving conditions.

Wider weather episode

An arctic front slowly moved from northwest to southeast across northern NY during the late evening of February 17th and overnight hours of February 18th, bringing much colder air. Meanwhile, a weak surface wave was traveling northeast along this boundary. The combination allowed for light rain to change to freezing rain and eventually sleet and snow through the morning hours of February 18th.

Ice accumulations were generally around a tenth (0.10) of an inch with sleet/snowfall totals of 4 to 8 inches that created hazardous travel.

Source: NOAA Storm Events Database, event_id 1000667. Narrative written by the NWS forecast office that issued the report.