A disruption of the #PolarVortex that took place in #Winter 2013. You'll see the large vortex over the North Atlantic Ocean break up into several smaller vortices. This distortion in the jet-stream led to extreme cold, especially in North America & Europe. #sciencevideos pic.twitter.com/UZBdc3gowI

— ScienceSource Images (@ScienceSource) December 19, 2018