Brutally cold temperatures impacting much of the U.S.
Arctic blast leaves over 110 million under wind chill warnings
10 minutes to danger: Arctic blast puts millions at risk of frostbite in Plains, Midwest
Winter storm: Arctic blast bringing record cold and wind chills as snow moves into Northeast
Extreme Cold Weather Spreads East - The New York Times
Winter storms, extreme weather and polar vortex cold to slam U.S.
Canada weather forecast: Heavy snow, cold temperatures
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Nearly 100 million in the U.S. face extreme cold this week : NPR
US is set to shiver through record-breaking freezing temperatures as far south as FLORIDA, sparking fears Texas power grid could fail, with Northern Plains facing -50F wind chills for days on end