[Snow in Grand Rapids, Michigan from Tuesday. From MDOT] Cold air dropping down across the Great Lakes has been producing heavy snow in the lake effect snow belts. Some areas in New York have seen nearly a foot of snow accumulate in the last 24 hours. Winter weather alerts remain in effect along the Lake Michigan shoreline and in New York, downstream from Lake Ontario. An additional foot of snow is possible for some of the lake effect snow belts, especially in Upstate New York. A weak trough of low pressure will cross the Great Lakes throughout the day, further enhancing snowfall. The lake effect bands will be narrow, but will likely be locally intense at times. Travelers should check ahead on the latest road reports as conditions could deteriorate quickly as snow squalls develop. For WeatherNation: Meteorologist Mace Michaels