How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

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

A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast ...

Recent forecasts suggest some Americans might be getting a much-needed break from the freezing temperatures that have gripped ...

The National Weather Service is predicting the temperature to be around 22 degrees at noon during the swearing-in, the ...

Another polar vortex disruption will stretch Arctic air ... 15 years,” said winter weather expert Judah Cohen of Atmospheric Environmental Research. “It’s pulling air out of Siberia.