This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in ...

A shifting polar vortex will allow multiple rounds of Arctic air to invade the central and eastern United States through the first half of December. The cold waves will be accompanied by opportunities ...

The polar vortex is expected to bring an average winter season this year, with the potential for cooler temperatures and more ...

The "polar vortex" talk becomes really popular each year. It usually doesn't surface until winter. Still, this season, the eastern U.S. is getting a shot of frigid air as this infamous polar vortex ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.

An unusually strong disruption in the upper atmosphere is setting the stage for a winter pattern that could lock much of the ...

A meteorologist is warning Ontarians to prepare, as an extreme atmospheric warming event will be bringing severely cold ...

The National Weather Service's Climate Prediction Center says a La Niña event could affect winter in Indiana, and the polar ...

As the UK goes through a cold snap this week - forecasters have suggested that more Arctic air could be brought to Britain ...