As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

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

Multiple rounds of snow are expected through Wednesday and dangerously cold temperatures will arriving by the week’s end, ...

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 ...

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

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 ...

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

When teeth-chattering cold drives most Long Islanders indoors, sectors of the workforce bundle up and head outdoors to keep the region running. From letter carriers to FedEx drivers and utility ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter much of the western United States and Midwest with heavy snow and cold ...