Three factors are combining to increase the likelihood of a weaker polar vortex this winter, the website reports. And a ...

Chain reaction could unleash cold polar vortex across United States through April Don't put away those coats just yet, weather forecasters tell North Americans ...

However, not every vortex disturbance leads to severe weather. Environment Canada meteorologist Geoff Coulson says reports predicting a collapse-driven deep freeze are not supported by current ...

The polar vortex, as explained by the National Weather Service, is a large area of low pressure and cold air that encircles the Earth’s poles. Even though it’s often framed in the media as a weather ...

The polar vortex’s icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

But at times some of the vortex can break off or move south, bringing unusually cold weather south and permitting warmer weather to creep up north.

'Life-threatening cold' expected as polar vortex stretches across U.S. after deadly weekend flooding Meteorologists said several states would experience the 10th and coldest polar vortex event ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people.