This. The meme is inaccurate in that the polar vortex is in fact currently unusually strong. It’s just unusually shaped placed. I hope the two following images show up correctly.

Strenght of the polar vortex. Blue line is this winter:

Image

source: weatheriscool.com

Map showing the mean geopotential height and surface (2m) temperature anomalies for this week, as forecasted on Monday by ECMW:

Image

source: charts.ecmwf.int/…/extended-anomaly-multi-param?b…