Antarctica’s polar vortex could be about to split in two for the first time in more than 20 years after a series of sudden spikes in stratospheric temperatures. If that happens, it could lead to ...

The Antarctic ozone hole usually starts forming in early August, but rare warming events and a strangely elongated polar vortex this year may have delayed its arrival. When you purchase through ...

The vortex is constantly spinning in a counter-clockwise direction around the North Pole. Its counterpart in the southern hemisphere is the Antarctic polar vortex. During the summer months in the ...

A polar vortex collapse occurs when the strong, cold winds that normally circulate around the Arctic or Antarctic a weaken and break apart, allowing frigid air to spill southward into lower latitudes.

Unlike the Arctic, where sudden stratospheric warming events are almost annual, the Southern Hemisphere's polar vortex is typically more stable. The Antarctic troposphere also saw unusual weather ...

A polar vortex is a large area of low-pressure and cold air that circulates around the Earth’s poles, typically confined to the Arctic or Antarctic regions. This swirling mass of frigid air is ...

"High temperatures this week at the U.S. McMurdo Antarctic research station are forecast to be in the teens and low 20s (above zero), easily warmer than the highs parts of the Midwest will see ...

Arctic ice has seen what scientists found to be “irreversible” thinning since 2007; Antarctic sea ice hit ... much of the public to the polar vortex. The phrase refers to a naturally occurring ...

Still, the Antarctic temperature anomaly is the largest ... air and low pressure spinning around each pole, known as the polar vortex. The vortex is typically strong and stable during winter ...

“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 ...

frigid air pushes southward toward the U.S. What's the difference between an Arctic air mass and the polar vortex? Arctic air masses originate over the Arctic or Antarctic regions and are very cold.

The Antarctic ozone hole opens in this protective ... The delay is due to two warming episodes that deformed the southern polar vortex earlier this year, according to the statement.