More on the polar vortex -- "The polar vortex is splitting in two, which may lead to weeks of wild winter weather"

Have I mentioned the polar vortex before?

Maybe….

 

More discussion about that from the Washington Post’s Capital Weather Gang.

Good graphics + a couple of good links to other weather articles, too….

 

https://www.washingtonpost.com/weather/2021/01/05/polar-vortex-split-cold-snow/