A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid ...

As we look toward mid-December into January, the door is opening for some potentially significant winter weather.

A combination of weather conditions may make it colder than usual across parts of the Central and Northern U.S. next week.

Millions are set to see temperatures plunge over the Thanksgiving holiday period as the destablizing polar vortex sends ...

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could ...

The culprit behind the country’s somewhat wacky weather, or at least part of it, is the (aforementioned) probable sudden stratospheric warming event (SSW) disrupting the stratosphere’s polar vortex ...

It's been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

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.

There may be a disruption to the polar vortex due to an unusually early Sudden Stratospheric Warming event. Judah Cohen, a ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter ...

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...