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.
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 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.
Polar vortex set to envelop much of US in freezing temperatures
A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into next week, impacting millions of Americans in nearly all of the contiguous states.
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. See maps of the arctic blast.
Polar vortex-related Arctic blast brings "dangerous" cold, snow to U.S.
Erin Davis/Axios Visuals An invasion of frigid air from the Arctic is sweeping south from the Plains and Ohio Valley Sunday, moving towards the Southeast and East. Threat level: The colder-than-average temperatures threatens public health for those exposed to the wind and cold,
Prolonged polar vortex has much of US preparing for life-threatening cold, pipe-bursting temperatures
A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not seen in years.
Polar vortex air on the way; -20° wind chills possible for some
FOX59 Meteorologist Ethan Rosuck provided an update on the dangerous cold Indianapolis could see at the start of the work week.
Polar vortex brings dangerous cold
Dangerous temperatures are sweeping the country, with 100 million people from the Plains to the Northeast feeling the chill. Even those in the South will see some effects. Several cities have already declared weather emergencies,
Fox 510h
Coldest Inauguration Day in 40 years expected as polar vortex invades America
President-elect Donald Trump's second inauguration will mark the coldest presidential ceremony in more than 40 years.
Watch live: Donald Trump inauguration parade takes place inside Capitol as Washington DC hit by freezing temperatures
Watch live as Donald Trump’s inauguration parade takes place inside the Capitol today (20 January) as Washington DC continues ...
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 ...
KCUR 89.3 FM2d
A polar vortex is set to grip Missouri and Kansas. What does that mean?
People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...