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

An unusually strong disruption in the upper atmosphere is setting the stage for a winter pattern that could lock much of the ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

Michigan could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, which ...

By Thursday, Arctic air will funnel across the Great Lakes Basin, dropping temperatures and fueling strong winds.

The polar vortex is on the move with its Arctic blasts, but so are storms packing snow and ice. The weather pattern setting ...

A polar vortex — a large area of low pressure — is heading south from the Arctic, bringing with it cold weather across many ...

The polar vortex could be disturbed in a way that hasn't happened this early in 25 years.

Lake-effect snow is back in the forecast for New York this week as a fast-moving clipper storm from the Rockies moves across ...