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 ...

The polar vortex is beginning to stir, signaling a gradual shift toward cooler fall weather in the northern U.S. Tennessee is expected to see mild temperatures through December, with the average first ...

A sharp change from the recent warm temperatures in Rhode Island, the National Weather Service has posted a freeze watch for the Providence area Thursday night into Friday morning, Oct. 9 – 10, as a ...

Add Yahoo as a preferred source to see more of our stories on Google. The Earth's polar vortex is stirring up, bringing the first hints of changing weather. In Pennsylvania, dry and warm weather is ...

The polar vortex is a large region of low pressure and cold air that has always existed around Earth's poles. While the polar vortex is weakening for the season, it does not directly cause winter ...