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

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

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

Winter in the CSRA is usually mild overall, but every now and then, we get a taste of true Arctic air. If you’ve ever ...

When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more ...

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

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

The University of Wisconsin-Madison faced a frigid start to the semester, with the polar vortex expected to bring more icy ...

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