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.

Weak Polar Winds: The strength of the polar winds plays a critical role in maintaining the integrity of the polar vortex. When these winds weaken, the containment of cold air diminishes, allowing it ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.

An Arctic blast is expected to bring below-average temperatures to the central U.S. and New England in late November and early December. A weakening polar vortex, influenced by a rare weather ...

WBZ-TV chief meteorologist Eric Fisher explains why the door is opening for some potentially significant winter weather.

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

Every year, the winter buzzwords start to fly before we set the Thanksgiving table. And who doesn't love feasting on the polar vortex? Everyone's favorite (or favorite to hate) phenomenon spins up in ...

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

An Arctic blast is expected to bring below-average temperatures to the central U.S. and New England in late November and early December. A weakening polar vortex, influenced by a rare weather ...