This is also the timeframe for the polar vortex to shift south, bringing some of the coldest air of the season all across ...

The forecast released Oct. 16 predicts where above- or below-normal temperatures and above- or below-normal precipitation are ...

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 polar vortex, a mass of cold air over the Arctic, is beginning its seasonal strengthening. A strong polar vortex typically keeps the coldest air locked near the North Pole. A weaker or wobbling ...

A cold winter is in store for those in the northern U.S., with milder temperatures across the southern tier, according to ...

While many across the Lower 48 have been enjoying a relatively warm and dry start to autumn, Siberian snow has already been growing and may add a chill to your winter forecast. One of these key ...

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 ...

Oklahomans hoping to sip pumpkin spice lattes in a chilly morning breeze may have to wait a few weeks. Although the favored fall drink is already here, the cool weather that transitions Oklahoma from ...