Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 left a mess in states from New Mexico to New England. Hundreds of thousands ...

The term ‘polar vortex’ is nothing new, but it has gained a lot of popularity over the last few years – especially with the ...

A look at what scientists say about the polar vortex and climate change.

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Don't let the incoming string of relatively warm days in the greater Philadelphia region fool you; the polar vortex is still around.

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, ...