What is the Polar Vortex?
Polar vortex' brings record cold to US | Al Jazeera America
Arctic Weather Plunges into North America
Polar Vortex: Watch: Woman Walks Out With Wet Hair In US. The Cold Air Does This
The U.S. is about to get a potent polar vortex blast | Mashable
Record freeze settles into eastern United States, affects 200 million people - ABC News
/cloudfront-ap-southeast-2.images.arcpublishing.com/nzme/IBI66C5W2XCSQMALZNJV4JVFXQ.jpg "Polar vortex: What to wear for a North American winter - NZ Herald")
Polar vortex: What to wear for a North American winter - NZ Herald
US polar vortex: extreme cold weather heads to east coast – live | US news | The Guardian
What Is the Polar Vortex? | NOAA SciJinks – All About Weather
The "Polar Vortex" of 2014
What is the polar vortex – and how is it linked to climate change? | US weather | The Guardian
Extreme Cold Weather Spreads East - The New York Times
The polar vortex is coming—and raising the odds for intense winter weather
What is the polar vortex?
Polar Vortex' Creates Amazing Temperature Spread | Live Science
How frigid polar vortex blasts are connected to global warming
In pictures: Polar vortex strikes North America - BBC News
Polar vortex brings deadly cold snap to US states - BBC News
A warming wave will start in the stratosphere, with the Polar Vortex being temporarily displaced, as it heads towards North America with cold weather » Severe Weather Europe
Weakening polar vortex may yield longer, harsher winters in North America
Analysis: Polar Vortex collapse causes heavy winter for North America and the Nordics - Kjeller Vindteknikk
US Midwest deep freeze: Polar vortex weakens but temperatures in some parts continue to tumble
What a Polar Vortex Is, and Why It Can Be Dangerous
