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

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 ...

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

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 ...

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

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

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 has shifted from obscure jargon to a phrase that can shut down schools, snarl air travel and strain power grids across continents. In the 2020s, as the climate warms and ...

"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, ...