Bands of lake effect snow showers will be found through the Great Lakes into Thursday morning. Alerts have been issued from Upper Michigan to Western New York from Lake Superior to Lake Ontario.
Up to a foot of snow is possible, especially downstream of Lake Erie and Ontario. Squalls could be locally intense at times, producing low visibility as winds gust to 40 mph at times.
Arctic air has been dropping southward behind a cold front, now in the Northeast. The front will enhance lake effect bands through the afternoon (Wednesday). Lake effect snows will diminish as another system approaches from the west Thursday, warming temperatures and changing wind directions.