DETROIT (AP) — It's that time of year — again — when cold air sweeps across the Great Lakes region, dropping huge amounts of lake-effect snow from Michigan's Upper Peninsula into Western New York.

Snow has already started falling Wednesday in and around Houghton, Michigan, and is expected to continue through Thanksgiving and into the weekend. A blizzard warning is in effect through Thursday morning in the Keweenaw Peninsula where Houghton is located, according to the National Weather Service .

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