A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
Another Arctic blast has been forecast to bring frigid air to a large section of the United States later in January.
The Current Temperature map shows the current temperatures color ... resulting in the phenomenon of felt air temperature, which can differ at varying degrees from actual temperature.
As the West Coast braces for fiery winds and the Northeast shivers under a polar vortex, the nation finds itself caught between two extreme weather fronts.