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

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

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

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

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 ...

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 ...