Parts of North Dakota, West Virginia and Virginia are under extreme cold warnings as a surge of Arctic air hits this weekend.

This cold blast could be relatively short-lived, with a return to more typical wintry temperatures by later in December.

The planet's most extreme cold air will be barreling into the central and eastern United States this coming weekend "like a ...

A winter storm is making its way toward the northeastern section of the I-95 corridor, where millions are expected to see ...

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will ...

The polar vortex phenomena is making this December much colder than average. Students should prepare themselves for changes ...

The northern U.S. is bracing for bone-chilling cold as a weakened polar vortex pushes Arctic air south. How cold will temps ...

There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this ...

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

Arctic air is taking cold to another level this week and the US could be facing bouts of it well into December thanks to the polar vortex.

The frigid weather will be felt through the Great Lakes Region and the Northeast, but is even extending to Texas.

Several states across the Northeast and into the Midwest are expected to experience unseasonably cold temperatures this ...