Polar vortex, cold air

Polar vortex to send bitter cold to the U.S. including DC area
The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, keeping it locked there. If there's any weakening in the jet stream (the fence), the frigid air can become unstable and spill out. This sends the normally trapped cold air much farther south.
Polar vortex to dump half a foot of snow on NYC, followed by deadly Arctic cold
A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will feel like 15 degrees below zero. New
Polar Vortex Map Shows How Cold Temperatures Will Get in Your State
A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.
A polar vortex will bring brutally cold temperatures and an arctic blast to much of the U.S. next week
Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day.
The polar vortex will soon hit the U.S. See how cold it’ll get where you live
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously frigid conditions.
Polar vortex to bring life-threatening temperatures to US this weekend
Temperatures are expected to plummet over the weekend, bringing life-threatening conditions to large stretches of the United States. The polar vortex will send temperatures below freezing for much
Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.
The Polar Vortex Is Coming: Expect Temperatures Below Zero And Snow In These Areas
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.
Jefferson Public Radio1d
A polar vortex is set to grip much of the U.S. What does that mean?
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...
Winter weather brings winter storm warnings, polar vortex from Texas to Maine
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
US braces for freezing weather fueled by polar vortex
Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...
Washington Times12d
Polar vortex keeps much of the U.S. in its icy grip
Washington, D.C., received heavy snow as President ... The warnings extended to New Jersey into early Tuesday. PHOTOS: Polar vortex keeps much of the US in its icy grip At the storied Calumet ...
People's March brings thousands to Washington, D.C. to voice concerns ahead of inauguration
Although people from all over the country, of all ages and backgrounds, joined the People's March, one protester said no one ...
Extreme Cold Alert: What is a Polar vortex, and why is it dangerous? Will it affect India?
Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to ...