A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of ...

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

A particularly brutal pattern in 2021 led to wind chills near 60 below zero in the Upper Midwest and an ice storm along the Gulf Coast. There is even a polar vortex on our sun. So, when you hear ...

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

two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere. As the Arctic continues ...

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.

The polar vortex was in play during the 2021 February freeze, which led to the failure of the statewide Texas power grid. Now the current state of the polar vortex is unusually strong. And that's ...

“If the polar vortex is left alone ... This was a factor in February 2021, for example, when freezing temperatures in Texas lasted more than eight days, causing widespread power outages and ...

Every few years or so, a dip in the jet stream allows this cold air to sink into the U.S. The last few visits from the polar vortex occurred in 2021, 2019, and 2014.

The big winter weather challenge has now come and gone in the form of last week’s polar vortex. The Eastern railroads got ...

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