A rare and abrupt disruption in the Arctic polar vortex is expected to impact spring temperatures across Europe and parts of the United States. Scientists are monitoring the event closely ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Those rumors came from a weather blog in north Texas that posted about the "polar vortex" a few days after Christmas. At the moment, there is no cold air outbreak in the forecast, even extended.

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

But for a huge swath of more populated land, from Alberta to Quebec in Canada, and the Pacific Northwest to the Northeast in the U.S., a polar vortex-linked series of frigid blasts await.

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 ...

Data from a polar vortex splitting during 2002’s Southern Hemisphere sudden warming event helps expand models to accommodate ...