Lake Effect Snow (LES) is very common across the Great Lakes region during the late fall and winter. LES occurs when cold air, often originating from Canada, moves across the open waters of the Great Lakes.

Heavy snow may be falling in one location, while the sun may be shining just a mile or two away in either direction. The physical geography of the land and water is also important. National Weather Service meteorologists consider these factors as …

This product is issued by the National Weather Service when pure lake effect snow (this is where the snow is a direct result of lake effect snow and not because of a low pressure system) may pose a hazard or it is life threatening. The criteria for this advisory varies from area to area.

Nov 28, 2024 · "A multi-day lake effect snow event off Lake Erie will begin tonight and bring periodic heavy snow to the region," the National Weather Service Cleveland office said in a statement. "Visibilities...

Dec 5, 2024 · This map from the National Weather Service shows areas expecting heavy lake effect snow marked in dark green near Lake Erie in Ohio, Pennsylvania and New York state.

Dec 31, 2024 · Three states are bracing for lake-effect snow starting on Wednesday and extending until Sunday in some regions, the National Weather Service (NWS) warns.

Dec 6, 2024 · Lake-effect snow squalls have developed in its wake across the Great Lakes, including areas already buried by feet of snowfall. Strong winds will impact the Great Lakes and Northeast...

On Feb. 13, 2020, the NOAA-20 satellite viewed cloud streets over Lake Superior, signifying a cold air mass on the move. In fact, wind chill advisories were in effect on Thursday for a portions of the Great Lakes region and Northern New England, according to the National Weather Service.

Nov 29, 2024 · There's a classic pattern meteorologists look for ahead of heavy lake-effect snow. The pattern features a sharp, persistent southward plunge of the jet stream anchored over the eastern U.S....

Jan 18, 2025 · Patrick Saunders, lead meteorologist from the National Weather Service in Cleveland, states that the less ice there is on the lake, the more moisture available that creates lake-effect snow. Lake ...