Polar vortex is not weather channel hysteria. It’s the correct meteorological term for the vortex that exists over the poles.
Polar vortex
https://en.wikipedia.org/wiki/Polar_vortex
True. There are also vortices that are not over the poles, and they occur ALL THE TIME.
You can see them here. There are many active vortices every day, all around the planet.
Mouse wheel to move in/out, click and drag to move around the planet