Summary (tl;dr)

Syracuse and Central New York are currently under a Lake Effect Snow Warning, leading to predictions of substantial snowfall, high winds, and hazardous travel conditions, prompting advisories and a statewide state of emergency.

Essential Background

Lake effect snow is a localized weather phenomenon that occurs when a mass of cold, dry air moves across a relatively warmer body of water, such as the Great Lakes. As the cold air passes over the unfrozen lake, it picks up moisture and warmth. This warmer, moister air rises, cools, and then deposits heavy bands of snow on the downwind shores. Regions like Central New York, particularly those downwind of Lake Ontario, are especially susceptible to intense lake effect snow events due to the unique geographical and climate conditions that foster their formation.

The Full Story

A significant and long-duration lake effect snow system began impacting Central New York on Monday, December 29, 2025, and is expected to persist throughout the week, with an intensification forecast for Tuesday and Wednesday. Governor Kathy Hochul has expanded a statewide State of Emergency in response to the intense winter storm affecting much of Upstate New York. Syracuse and Onondaga County are under a Winter Storm Warning, with forecasts predicting significant snowfall accumulations of 20 to 30 inches over a 24 to 36-hour period, and potentially two to three feet in the Syracuse metro area by Wednesday night. Strong winds, with widespread gusts of 40-45 mph and isolated gusts potentially reaching 50 mph (or up to 70 mph initially in Western New York), are accompanying the snow, creating widespread blowing snow and whiteout conditions. Non-essential state employees in affected counties, including Onondaga, have been directed to telecommute where possible.

Why It Matters

The severe lake effect snow and powerful winds are creating extremely dangerous driving conditions, characterized by significantly reduced visibility, whiteout conditions, and rapidly deteriorating roads, making travel very difficult or even impossible. Beyond travel disruptions, there is a risk of tree damage and isolated power outages due to the strong wind gusts. Local authorities are advising residents and tourists to reconsider non-essential travel to ensure safety and prevent undue strain on emergency and road clearing crews. The prolonged nature of this event means sustained disruption for those living and working in the affected areas.

Geographic Location

• Syracuse, Onondaga County, New York, United States (experiencing heavy lake effect snow, strong winds, Winter Storm Warning, travel advisories, and predictions of 20-30 inches of snow)