A rare stratospheric warming event high above the Arctic could disrupt the polar vortex and send colder air toward Texas in ...

A polar vortex is bringing colder air to parts of the U.S. But how much will Alabama be impacted as December begins? Here’s ...

This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in ...

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

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

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

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

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming.

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.

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

A chilling forecast looms over the East Coast, with a polar vortex promising a hellish winter storm next week.

Polar air is descending over Canada dropping temperatures nation-wide. The Weather Network's meteorologist Laura Power has ...