Polar vortex set to freeze U.S. as far as Deep South

Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day ...
An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia ...
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...
A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this ...
Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to ...
Donald Trump delivered his first inaugural address amid light rain showers in 2017. Snow flurries gave way to breaks in the ...