With the winter-like cold air that's settled in over the Great Lakes, three more Midwest ski areas plan to open later this week with a couple more scheduled to open the following weekend.

Boyne Highlands freshly groomed. (Boyne)

Winter has arrived across the upper Midwest and is even allowing some ski areas in the lower Heartland to fire up and test the snowguns. It’s some of the earliest openings in 20 years.