The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable ...

A significant shift in the polar vortex is poised to send shivers across the Central and Northeastern United States, initiating a pattern of Arctic outbreaks and storm chances that could persist for ...

Frigid temps and heavy snow gripped much of the U.S. on December 1, the first day of meteorological winter. It looks like ...

A storm producing areas of snow over interior British Columbia at the start of the week is expected to move southeastward ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in ...

The shift is a result of a “major sudden stratospheric warming,” which in turn will shift colder Arctic air southward.

Meteorologists are predicting cold weather across the US after Thanksgiving. Here's what to expect in the Wilmington area.

The busy holiday period combined with the changing seasons often threatens chaos on the roads and at airports.

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...

A rare weather phenomenon that hasn't occurred since 1968 is expected to plunge temperatures across parts of the United States.