In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

The term "polar vortex" might have recently picked up in popularity, but the natural weather phenomenon has always existed near the Arctic. Known as a large region of low pressure and rotating air ...

Forecasts continue to point toward the Arctic polar vortex bringing chilling winds across swathes of the U.S. in the new year. The polar vortex may lead to severe weather conditions, such as heavy ...

Persistent blasts of Arctic air have been keeping it bitter cold. — -- Once again the relentless stretch of bitter cold battering Northeastern cities including Boston with record snow has many ...

The Earth's polar vortex is strengthening, signaling a gradual cooling and a more active storm track across the northern U.S. North Carolina's first freeze typically occurs between late October and ...