A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central ...

The heaviest accumulations, possibly a foot (30.5 centimeters) or more, were expected in upstate New York and portions of ...

The latest blast of frigid air will linger across the central and eastern U.S. through much of the week while another winter ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...

More than 95 million people are facing gripping cold Tuesday as a polar vortex sends temperatures plunging to record levels, ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

A powerful polar vortex is set to bring dangerously cold temperatures to the US, with the Northern and Central Plains facing ...

ushering in a frigid polar vortex that will leave parts of the US suffering through wind chills as cold as -50 degrees. A powerful winter storm is set to plow through the southeast and Central ...

A cold weather advisory is in effect until noon Tuesday, with wind chills ranging between minus 15 and minus 25 before ...