A weakened polar vortex is expected to keep much of the Midwest and Northeast cooler than average this May, potentially making it one of the chilliest in recent years. The Weather Company and ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

Face it — "polar vortex" is fun to say. It sounds like something that could have killed a red-shirted crewmember on the original "Star Trek" television series. Maybe that's why a weather feature that ...

The risk of frost and freeze will be heightened across much of the Northeast this weekend, as unseasonably cold air lingers ...

While much of the eastern U.s. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of unseasonable warmth, which has left many mountain ranges in a snow drought. A major ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...