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 ...

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

(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 blackout is unlikely in Texas this winter, but it always remains a possibility with the stressed ERCOT grid.

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — The polar vortex hit its ...

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

The FOX Forecast Center reveals arctic air is descending and spreading across the Lower 48 states. FOX Forecast Center / FOX Weather The polar vortex has returned to the U.S., and frostbite-inducing ...