FAQ: What is wind chill, and why is it dangerous?
toggle caption Matt Rourke/AP
Millions of people in the central and eastern United States are experiencing frigid weather, with wind chill temperatures that are in the single digits in many places. And a storm is expected to bring strong winds to much of the East Coast over the weekend.
Wind chill is a measure of how quickly bodies lose heat when you combine low temperatures with high winds. And wind chill conditions can be dangerous.
"The stronger the winds [and] the colder it is, the more likely you are to develop frostbite in a short amount of time or hypothermia," says Jessica Lee of the Nation
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