Of course it’s the Polar Vortex!

Climatologist Dr. Judah Cohen points out that Siberia is the world’s ice box and temperatures last week there were running in the MINUS 70s! So if those fast winds at the north pole (the polar vortex) weaken due to some undue warming, then that cold air crosses right over into Canada and the USA. You can get a sense of that happening from the Global temperature forecast here as those purple/white/blue colors---cold air---spill from Russia across the north pole and eventually into Texas!