Sudden stratospheric warming is expected to keep a weakened vortex splintered, plunging the region back to record-breaking ...

A polar vortex will linger through much of the country for most of this February, prolonging the deep freeze for weeks to ...

The bitter cold temperatures that have left a chill over the eastern half of the country aren’t going anywhere, as a major disruption to the Polar Vortex is coming this month.

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can ...

The polar vortex isn’t just “cold air” — it’s a massive atmospheric engine that can shift and crack, sending brutal winter outbreaks far from the Arctic. This decade, scientists warn its behavior ...

"Potentially hundreds of thousands of people may go without electricity and heat for days, one meteorologist said ...

Meteorologist Sven Sundgaard predicted this wacky winter weather back in October, and he explains what's happening now and ...

It exists all the time, but it usually gets stronger in winter. When the jet stream (a river of wind) bends and dips south, ...