Date night with the stratospheric polar vortex
Polar Vortex moving off the top of the globe, what that means for Great Lakes region
The polar vortex has been disrupted. What does that bode?
What is the 'polar vortex'?
Here's what you need to know about the polar vortex
How does the polar vortex lead to Arctic outbreaks?
Wandering polar vortex may cause a wild, snowy winter
The Polar Vortex Winter of 2013/14 Verisk's Atmospheric and Environmental Research
What is the polar vortex, and how does it change the weather? - The Washington Post
Polar Vortex: What Is It and Why Is It Important?
Will a polar vortex hit the US? Interest spikes ahead of winter storm
The 'polar vortex' may appear in the US in January