A Polar Vortex? Are they making this up?

So, it's cold. Very cold. In fact, it's so cold that it's a Polar Vortex. You know, a Polar Vortex. Yeah, I know...I've never heard of such a thing either. So, I did a little research and this is what a Polar Vortex is all about. And quite frankly, it can leave now...