Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

“These events never happen over the Antarctic,” says Aditi Sheshadri, an atmospheric scientist at Stanford University. And the absence of these polar vortex disturbances in the Southern ...

Another Polar Vortex also exists over Antarctica. Brown explained that, at times, the polar vortex can stretch out and cause the Jet Stream to dip farther south. That change allows cold air to ...

A second polar vortex swirls over Antarctica. Typically that cold air is contained by a fast moving current of air known as the jet stream. The speed of that current is typically propelled by the ...

Last week’s intrusion of polar air followed events like one that ... found to be “irreversible” thinning since 2007; Antarctic sea ice hit a record low, by far, in 2023.

Bundle up Tennessee because it's about to get downright frigid. Tennessee, along with most of the lower 48 states, can expect a blast of cold air thanks to a polar vortex. The term has recently become ...

the term "polar vortex" describes a massive cyclone of air that is always swirling high in the atmosphere above the North and South Pole. Cold spells like the one in the forecast this weekend can be ...

A23a, the largest iceberg in the world, has begun moving again after being trapped in a vortex ... from polar regions. These measurements, which track heat escaping from the Arctic and Antarctic ...