Coldest Temperatures: Two Stage Snow Blowers 03/13

In a two-stage machine, two mechanisms move the snow: an auger feeds the snow to a high-speed impeller, which blows the snow out of the machine. Two-stage snow blowers range from small machines of a few horsepower to very large machines powered by diesel engines of over 1000 horsepower (746 kW). The large machines are used for clearing roadways and airport runways, often by throwing the snow into trucks, which haul it away.

Ice builds up along Lake Michigan at North Avenue Beach as temperatures dipped well below zero on Monday in Chicago, Illinois.

Nearly 187 million people, more than half of the nation’s population, were under a wind chill warning or advisory on Monday.
The winds made it feel like 55 below zero in International Falls, Minn., and parts of the Midwest accustomed to temperatures that are cold – albeit seldom this cold. But even the coal fields of Virginia and West Virginia, the wind chill was negative 35.