Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south to just north of ...

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

The severe weather pattern is caused by disruption of the polar vortex, which normally remains uniform over the North Pole.

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...