What some people are calling the polar vortex, last winter's favorite whipping boy, will make a rare summer cameo in the central U.S. next week in what's typically one of the hottest weeks of the year ...

Add Yahoo as a preferred source to see more of our stories on Google. New York could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, which could ...

A weakened polar vortex is expected to bring frigid Arctic air to the central and eastern United States. Louisville could see temperatures in the single digits with wind chills as low as -8 degrees. A ...

The Earth's polar vortex is stirring up, bringing the first hints of changing weather as the autumn foliage starts to turn and the temperatures begin to drop. The movement means gradual cooling and a ...

New Yorkers should prepare for one last noticeable chill from the polar vortex before spring takes hold, with below-average ...