Once every two years there is a disruption of the polar vortex. So you get very strong warming like tens of degrees Celsius ...

If you hear that the polar vortex is coming, you should expect to experience a lot of cold. CLEVELAND — The temperature ...

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

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.

Sudden Stratospheric Warming (SSW) events occur during the winter months and can lead to Arctic outbreaks across the US. They have to do with the polar vortex and the jet stream. A stable polar vortex ...

Is this the end of the bitter cold? Research meteorologist Amy Butler of NOAA warned there is another shockwave of cold expected by mid-December. “It does look like the polar vortex will become more ...

(AP) - The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there ...

A powerful winter storm system that swept across the eastern United States over the weekend, killing at least 10 people, has now shifted westward, with a polar vortex expected to grip the Rockies and ...

As for snow, let's go for 55"-65" of snow in Boston, and 75"-85" of snow in Worcester. While the coldest air relative to ...