The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.

You might have heard the term “polar vortex” thrown around during the winter months, but what does it really mean and how ...

Every U.S. state but Hawaii, California and Florida have some or all parts forecast to have ... Obviously this isn’t the first polar vortex episode of the winter, but it looks to be the most severe.” ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a ...

The polar vortex has taken on an unexpected pattern ... Parts of three states, Alaska, Florida and Hawaii, have recorded above-average temperatures so far this year. The five countries with ...

Polar vortex is not a synonym for “cold snap ... with the kind of severe weather and rare snowstorms that blanketed beaches in Florida's western Panhandle in January. However, the vortex ...

Every U.S. state but Hawaii, California and Florida have some or all parts ... Obviously this isn’t the first polar vortex episode of the winter, but it looks to be the most severe.” ...