polar vortex, arctic blast

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...
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.
An arctic front will sweep across Texas, bringing freezing temperatures and snow chances, NOAA reports with impacts expected ...
A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...
With an arctic blast on the way, Texas officials want to make sure people understand weather conditions are about to change.