Canada, Polar Vortex

The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...
Some of the coldest air in years is expected to plunge into the High Plains, Midwest and finally the East in the coming days ...
This blast of cold weather is due to activity of the polar vortex.
The polar vortex will engulf much of North America as we head into next week, with temperatures dipping down into the -20s and -30s in some Canadian provinces. Even states like the Carolinas, ...
The polar vortex is an enormous ring of powerful winds ... pushing 30-40 degrees below normal for tens of millions of people across North America. Brutally cold days and locally historic low ...
The coldest weather of the season to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that typically circulates around both the North and South Poles, but can ...
But what is a polar vortex? The polar vortex is the jet stream above the Arctic Circle. It is very cold. Most of the time it stays up there, but there are circumstances where it can dip down ...
The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...