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

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

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

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

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

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 ...

But here’s where things get interesting: the polar vortex’s behavior is closely tied to the jet stream, a fast-moving river of air that flows high above the Earth. The jet stream acts like a ...

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