A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

The term “polar vortex” might conjure images of mythical icy storms swirling through the North Pole but in reality it’s a ...

Spring may have technically sprung in the Northern Hemisphere, but the lingering impact of the collapsing polar vortex could ensure that chilly weather will stick around for a while longer across ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

Scientists have issued a warning to weather forecasters about a weather phenomenon that increases the risk of "damaging ...