A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.
Parts of the U.S. are set to be hit by an Arctic blast that brings record-setting cold to the region in the first week of the ...
After the first round of cold, two more rounds of arctic air will dive from Canada, setting up parts of the US for a ...
After the first round of cold, two more rounds of arctic air will dive from Canada, setting up parts of the U.S. for a long-lasting arctic outbreak of freezing temperatures. For the north, this change ...