Dr. Amy Butler with the National Oceanic and Atmospheric Administration says the early polar vortex disruption is unusual and ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they ...

The polar vortex, a high-altitude ring of westerly winds that usually keeps Arctic air locked near the pole, is showing signs ...

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

La Niña and polar vortex weather patterns will be at play for the 2025-2026 winter season. Here's what we know about the impact in Kentucky ...

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills between negative 10 to negative 25 degrees will be expected, and the cold ...

Three polar vortex systems are anticipated in December, and the first is expected this week, according to AccuWeather. The ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

Although a major winter outbreak is not guaranteed, forecasters are watching for below-average temperatures to develop in the world’s mid-latitudes over the next month.

A rare stratospheric warming event high above the Arctic could disrupt the polar vortex and send colder air toward Texas in ...

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

A new wave of intense winter weather is preparing to sweep across the United States, as meteorologists warn that a triple-dip ...