The polar vortex is a broad, fast ribbon of cold air that encapsulates the Arctic high in the stratosphere. Stable, it ...

La Niña will be emerging and will likely persist into winter, favoring a weather pattern with above-normal temperatures and ...

The polar vortex is Earth's frozen guardian—but that guardian is starting to fail. This video dives into the science behind the vortex’s destabilization and the global consequences we could face, from ...

Summer may end on a cooler note for parts of the U.S., with meteorologists suggesting that a weakened polar vortex could ...

The polar vortex is a large area of low pressure and cold air surrounding the Earth’s poles. Under normal conditions, it spins tightly around the Arctic. However, as the Arctic warms, this system ...

It's already a lot to endure frigid winter conditions, but what happens when we get an unwelcome visit from an even colder spell of air like a polar vortex? "A polar vortex is simply that: a vortex ...

Brace yourselves; winter is coming. "Polar vortex" may have been the weather catchphrase of last winter, but it's coming back and it's bringing snow and freezing temperatures along with it. While it ...

Bismarck, N.D., fell to -39°F, six degrees from its all-time coldest day. The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the ...

CHICAGO (WLS) -- "Polar Vortex" is a dreaded term that we all have become accustomed too over the past few years. But what is it? The polar vortex is always present in the Arctic Circle. It is a broad ...

Texans will likely be complaining when that summer heat rolls around, but for now, we're counting our lucky stars we live in the Lone Star State. Other parts of the country are dealing with some nasty ...

A rare glimpse into the wintry conditions of Mars’s north polar vortex has shown that temperatures inside the vortex are far ...