When invisible dark matter spins, it may form clumps of "vortexes" that stretch across space, forming the cosmic web that ...

Most of the U.S. will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this weekend.

Polar vortex is not a synonym for “cold snap,” according to the Polar Vortex Blog at Climate.gov, and it’s not the only weather pattern to blame for blasts of cold air.

The polar vortex is aways around - it just normally stays near the North Pole. But when it descends into our area, get ready for really cold weather.

On Monday, the polar vortex will reach the Deep South, with temperatures down to the freezing point of 32 degrees Fahrenheit in Atlanta. Wind chills will be in the 20s.

Polar vortex headed for US will bring ‘exceptionally cold’ temps in the new year: ‘Weather models are screaming’ By . Alex Oliveira. Published Dec. 30, 2024, 8:14 p.m. ET.

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here’s why it keeps happening.

A graphic depicting the science behind a polar vortex. Forecasts suggest it will bring cold air to much of the U.S. in early 2025. NOAA. During winter in the Northern Hemisphere, the polar vortex ...

When the polar vortex gets weaker, or breaks up, it unleashes cold air to the south. People bear the cold in New York City, December 23, 2024. Selcuk Acar/Anadolu via Getty Images.