The Midwest and Great Lakes regions may experience "the coldest air in a generation" in the coming days, says the National Weather Service. A polar vortex sweeping the country will cause temperatures that will likely "shatter dozens of records." In Chicago, the temperature may come close to reaching a new record of 29 degrees below zero as residents are warned of "life-threatening extreme cold" that "can lead to rapid onset of frostbite and hypothermia," per The Washington Post. In the northern Plains, there are some areas where the wind chill will likely bring temperatures as low as 64 degrees below zero. The National Weather Service said that when outside in these areas, residents should "avoid taking deep breaths, and minimize talking."

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