A powerful Polar Vortex in the stratosphere brings frigid temperatures to US
The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...
Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
A polar vortex will bring brutally cold temperatures and an arctic blast to much of the U.S. next week
Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day.