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

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

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

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of ...

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

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

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

As we continue to warm moving into February, it appears latest trends suggest a classic "what goes up, must come down" type ...

The weather flow is gradually changing now and as we head into early February. Our storm systems will come from the west and ...

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