Winter Weather — Northeast Suffolk, New York

2023-02-27 to 2023-02-28 · Northeast Suffolk, New York

Event narrative

A trained spotter reported 4.5 inches in Mattituck, along with a COOP observer reporting 4.5 inches in Orient Point. An NWS employee reported 3.8 inches in Sound Beach, along with a NWS Office report of 4.4 inches in Brookhaven Labs / Upton.

Wider weather episode

Weak high pressure and a marginally cold air mass was locked into the northeast with blocking to the north across Eastern Canada, while low pressure over the Midwest moved east and redeveloped off the Northern Mid Atlantic coast. This led to the first widespread accumulating snowfall across the CWA.

Source: NOAA Storm Events Database, event_id 1075117. Narrative written by the NWS forecast office that issued the report.