Polar vortex to send bitter cold to U.S. including DC area

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to ...
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
Winter isn’t over yet! A polar vortex is bringing subzero winds, frigid temperatures, and possibly snow to the U.S., ...
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.
A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...
Temperatures are expected to plummet over the weekend, bringing life-threatening conditions to large stretches of the United ...
Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...
Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to ...