Polar vortex to fuel dangerous spread of arctic air as coldest temperatures will linger over US for weeks

With over 170 million Americans facing below average temperatures, even colder air may be on the horizon thanks to the ...

Polar vortex to usher in much colder air to central and eastern US into end of January

Colder air is returning to the central and eastern U.S. as the polar vortex becomes more active, bringing fluctuating ...

Arctic blast threatens to unleash bitterly cold air across East, South

A fierce Arctic blast of bitterly cold air is poised to overtake much of the central, eastern and southern U.S. over the next ...

The polar vortex returns. Here’s how cold it’ll get where you are.

The first cold wave will reach the East Coast on Thursday, followed by another surge of frigid air this weekend and more next ...