A polar vortex is part of the winter-weather cycle, but it catches attention for the Arctic temps it causes.

Polar vortex to bring frigid temperatures, snow and ice to millions of Americans About 60 million people are forecast to experience subzero temperatures. The polar vortex may also fuel yet another ...

That will be followed by a polar vortex that will cause temperatures to drop next week. With the season's first major storm on its way, here's the weather forecast for the First State for the ...

Because this is the Polar Vortex Blog, we would love to be able to tell you how the stratospheric polar vortex is doing super cool things that can explain how cold and snowy it’s been in many ...

There is a sudden warming about to happen high up in the atmosphere. This warming usually affects the Polar Vortex.

The polar vortex is getting disrupted as temperatures climb high in the atmosphere above the North Pole, and this could lead to a significant change in weather patterns over the U.S. and Canada as … ...

Indications are the polar vortex is going to get wound up tight in the next week. This has a weather domino effect you might not expect.

What is a polar vortex? The polar vortex is an area of swirling cold air in the Earth's polar regions. During winter, the polar vortex at the North Pole expands, sending cold air southward ...

January usually brings the coldest air of the season to much of the country, and this year has seen its fair share. “The polar vortex is a core of extremely cold air that typically remains near ...

Get comfortable with the cold; the polar vortex is expected to keep the chill going for a few weeks.

Delaware likely will see snow for the first time in 2025. Here's the weather forecast for the First State as the first major storm of winter nears.