On the morning of January 16, Big Black River in Northern Maine dropped to -50, the coldest temperature ever recorded in ...

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

The Pacific Ocean along the equator is where a phenomenon called La Niña develops. La Niña is the “cool sister” to El Niño.

Research shows a strong connection between October snow in Eurasia and the behavior of the swirling wind that contains Arctic ...

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 ...

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

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 ...

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 polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...