In A Nutshell A major study of 42 years of data shows severe winter storms have shifted northwest, away from the traditional ...

The tenth and coldest polar vortex of the season is blasting across the US this week. More than 58million Americans are under National Weather Service cold warnings from the US-Canada border to as ...

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

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

The polar vortex has been “considerably stronger” than usual this year, according to Laura Ciasto, a meteorologist with NOAA’s Climate Prediction Center, which should keep record-breaking ...

During January 2014, a displaced lobe of the polar vortex caused subzero temperatures in about 40 states. For many, it formed part of one of the harshest winters in decades. (Ben Noll.

Tuesday's low temperature map shows readings bottoming out in the 20s and 30s across much of the ... Powerful polar vortex in the stratosphere brings frigid temperatures to US. Polar vortex to ...

Polar vortex is not a synonym for “cold snap,” according to the Polar Vortex Blog at Climate.gov, and it’s not the only weather pattern to blame for blasts of cold air.

Polar vortex will bring frigid air back to many states after weekend storm Eighty million may experience subzero temperatures after a snow and ice storm this weekend. What to know in seven graphics.

This will be the 10th time this winter that the polar vortex — which keeps the coldest of Arctic air penned in at the top of the world — stretches like a rubber band to send some of that big ...