polar vortex, arctic blast

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.
These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...
An arctic front will sweep across Texas, bringing freezing temperatures and snow chances, NOAA reports with impacts expected ...