[VIDEO] ‘Life-threatening’ cold weather hits US – ‘Polar Vortex’ Pushes Subzero Temps Into Midwest

As the Midwestern United States shivered through the region’s lowest temperatures in two decades and forecasters warned that life-threatening cold was heading eastward, officials in Chicago and other districts said schools would be closed today.

Icy conditions snarled travel across the Midwest and thousands of flights were canceled or delayed, days after the Northeast was hammered by the first winter storm of the season.

“The coldest temperatures in almost two decades will spread into the northern and central US today behind an arctic cold front,” the National Weather Service said yesterday.

“Combined with gusty winds, these temperatures will result in life-threatening wind chill values as low as 60 degrees below zero (Fahrenheit/ – 51 degrees Celsius).”

In weather that cold, frostbite can set in on uncovered skin in a matter of minutes, experts warned.

'Polar Vortex' Pushes Subzero Temps Into Midwest