The polar dance that caused snow to fall across the South in January has been studied for decades, but scientists still hope ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the polar regions—here’s how it works ...

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...

This blast of cold weather is due to activity of the polar vortex.

The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the north pole. Imagine it as a giant, icy whirlpool far above the Earth, keeping frigid ...

7 rare wildflowers to spot inside Valley... 8 lesser-known wildlife sanctuaries and ...