The polar vortex is stirring up, bringing the earliest hints that the weather is changing. Here's what to know.

Winter is approaching, and millions of Americans are wondering what Mother Nature has in store for the coming months. Will it ...

Brace yourselves; winter is coming. "Polar vortex" may have been the weather catchphrase of last winter, but it's coming back and it's bringing snow and freezing temperatures along with it. While it ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing with the new fall season. When is ...

Get ready to bundle up again, Northeast Ohio. The upcoming winter is shaping up to be as cold as last year…but this year may ...

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

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

Temperatures are staying relatively warm throughout Illinois this week, despite fall officially starting Sept. 21. But ...

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

As the polar vortex begins to stir, subtle clues point to the coming seasonal shift. So, when will freezing temperatures arrive in Indiana?

The polar vortex doesn't directly control U.S. temperatures ... during wintertime and is often associated with large outbreaks of Arctic air in the United States." Iris Seaton is the trending news ...

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