The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people ...

While cold temperatures and snow are not at all unexpected in many parts of the world, they are quite rare in others. In ...

The arctic outbreak that has enveloped the central US is hitting its peak Thursday ... frozen and burst pipes and water mains. While polar vortex outbreaks are not uncommon, especially in ...

Millions of Americans were hit with blustery blizzards last month when a polar vortex collapse ushered in below freezing temperatures across much of North America ...

Polar Vortex Makes Much of US Colder Than Greenland, but Warmth Is Coming. Then More Cold WASHINGTON (AP) — The polar vortex hit its peak across much of America on Wednesday, with an icy grip ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March, ...

The National Oceanic and Atmospheric Administration (NOAA) explains that a polar vortex is a large area of low pressure and ...

Winter isn't over just yet. A major shift in the weather pattern could have millions across the United States once again ...

A senior meteorologist with AccuWeather foresees shots of cold air infiltrating the Northeast in the coming weeks.

It was the 18th month of the last 19 that the world hit or passed ... and historic US weather. This week, parts of the U.S. are experiencing the 10th and coldest polar vortex event this season.

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...