Brief visit from polar vortex to bring record-challenging cold to Northeast
What is the Polar Vortex? | Waugh Research Group | Johns Hopkins University
Weakened polar vortex seen as likely culprit behind China's big chill | Reuters
Polar vortex' may blanket US with arctic weather in January
How the polar vortex could bring winter back after temperatures warm - The Washington Post
Will a polar vortex hit the US? Interest spikes ahead of winter storm
/cdn.vox-cdn.com/uploads/chorus_image/image/62956146/DyAV_wOWsAADCyF.0.jpg "The polar vortex, briefly explained - Vox")
The polar vortex, briefly explained - Vox
What a Polar Vortex Is, and Why It Can Be Dangerous
Polar Vortex, Definition, Formation, Causes, Impacts, Diagram
Polar vortex - Wikipedia
What is the polar vortex – and how is it linked to climate change? | US weather | The Guardian
The polar vortex may be on its way | CNN
New Polar Vortex Blog on Climate.gov - Climate Program Office
Think You Know the Polar Vortex? Think Again. | NOVA | PBS
Cooking up a stratospheric polar vortex disruption | NOAA Climate.gov
The Polar Vortex is strengthening. Should we be concerned? – Weather News
Welcome to the Polar Vortex Blog! | NOAA Climate.gov
What is the Polar Vortex?
The polar vortex is acting up | NOAA Climate.gov
Polar vortex - Wikipedia
What is the polar vortex? How it's responsible for dangerous cold - The Weather Network
Yes, Brutal Cold Is Barreling Down From the Arctic, but No, It's Not the Polar Vortex | Discover Magazine
