Heavy Snow — Northern Nassau, New York

2025-12-13 to 2025-12-14 · Northern Nassau, New York

Event narrative

Official NWS Observation of 7.0 inches was reported in Jericho. A COOP observer reported 9.0 inches in Syosett. The general public reported 7.9 inches at 1 WSW Upper Brookville, 6.5 inches in Sea Cliff, and 6.4 inches at Glen Cove, and 6.1 inches in East Williston. A trained spotter reported 5.8 inches in Manhasset Hills.

Wider weather episode

Advisory and some Warning level snowfall occurred across SE New York. An quasi arctic / polar boundary moved across the region as elongated weak low pressure formed along the boundary and moved along the boundary to the east northeast. The region was on the cold side of the boundary which resulted in accumulating snowfall region wide.

Source: NOAA Storm Events Database, event_id 1299275. Narrative written by the NWS forecast office that issued the report.