However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and ...
These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...
Editor's Note for Sat. Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States in ...
Stable polar vortex: When the stratosphere over the Arctic is cold, it's considered stable. The wind around the polar vortex ...
According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need to know.