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 ...

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

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

Sudden Stratospheric Warming (SSW) events occur during the winter months and can lead to Arctic outbreaks across the US. They ...

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.

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

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 ...

Don't put away those winter coats just yet. An April cold snap is forecast for much of the eastern half of the U.S. early next week, forecasters said, with freezes likely across portions of the ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.

Thanksgiving Day, Week may bring colder temperatures, snow, and rain across the U.S. This forecast could affect record ...