Polar vortex, arctic blast

President-elect Donald Trump's second inauguration will mark the coldest presidential ceremony in more than 40 years.
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...
Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.
Temperatures are expected to plummet over the weekend, bringing life-threatening conditions to large stretches of the United ...
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
An arctic air mass settled over New York City and much of the country Sunday evening, bringing a deep freeze and the chance ...
Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...