The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable ...

In 2014, the term “polar vortex” burst on the scene across Canada and the U.S. as temperatures plunged. In some places, it ...

(CNN) — It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the ...

A rare stratospheric warming event high above the Arctic could disrupt the polar vortex and send colder air toward Texas in ...

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

A growing body of research indicates that polar vortexes are likely becoming more frequent due to the climate crisis.

Less than a week after snow, sleet and freezing rain, we're now forecasting highs in the 70s. During its coldest point, last week saw wind chills drop to -30° to -50° in states like Iowa, Wisconsin, ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

A polar vortex is on its way for much of Canada next week. And while it's not the first time Canadians have faced down the ...

An Arctic blast is expected to bring cold temperatures and heavy snow to Iowa around Thanksgiving and into early December. A rare weather phenomenon, known as a sudden stratospheric warming, could ...