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

The atmosphere is very unsettled, especially with the recent weakening of the polar vortex, which has increased the chances ...

The polar vortex is on the move with its Arctic blasts, but so are storms packing snow and ice. The weather pattern setting ...

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

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.

New England is set to kick off December and meteorological winter with its first significant winter storm on Tuesday, ...

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

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 parade of winter storms is lining up for the Northeast, with another snowmaking system set to arrive as the weekend ...

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