Freezing temperatures engulf US causing widespread travel disruption – video report

A deep freeze has enveloped most of the United States early on Friday, as cold air plunges south from northern Canada all the way to the Gulf coast. Combined with a massive winter storm brewing in the midwest, two-thirds of the nation is under extreme weather alerts. Wind-chill temperatures lower than -40C are expected, the point at which the celsius and fahrenheit scales intersect

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