The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...

A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast ...

NEW ORLEANS — The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

A powerful polar ... from Alaska through the Midwest and extending deep into the Southeast. Many Southern states that rarely face winter storms are now under weather warnings as the vortex ...

Blizzard conditions are being reported in parts of Kansas and Missouri. In Indiana, the National Guard has been activated to ...

Such cold air blasts have become known as the polar vortex. It's a long-established weather term that's become mainstream as its technical meaning changed a bit on the way. What it really means to ...