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

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

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

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward ...

The layer above that is the stratosphere. For the purposes of this article, we're talking about the stratospheric polar vortex. It's a semi-permanent area of low pressure that resides over the Arctic.

The polar vortex is a large area of low pressure sitting about 10 to 15 miles into the stratosphere that contains some of the coldest air on earth. But how is it contained? Remember a few months ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This vortex consists of powerful westerly winds in the stratosphere ...

Answers as to why these strange temperatures and weather events are prevalent may be found in the polar vortex. The polar vortex is a large area of low pressure and cold air ... observing conditions ...

The mere mention of the term "polar vortex" can set your head spinning ... air to spill into Eastern North America at ALL levels of the atmosphere. What’s even stranger is that it’s merely ...

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