The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

The polar vortex is stirring up, with winter weather advisories in Alaska and freeze warnings in New York signaling the first signs of the changing fall weather in the US. With New Jersey's apple ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing as autumn has officially arrived. In the short term, this means gradual cool-downs and a more active storm ...

The Earth's polar vortex is stirring up, bringing the first hints at changing weather as fall descends on the U.S. This movement means gradual cooling and a more active storm track across the northern ...