Polar Vortex bringing coldest temperatures of year

Arctic air moved south, into the area starting late last week and has lingering since. This has lead to dangerously cold ...
Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...
A polar vortex is slated to sweep most of the continental United States bringing a hazardous freeze to millions of Americans ...
These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...