The polar vortex's icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

The polar vortex, as explained by the National Weather Service, is a large area of low pressure and cold air that encircles ...

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, reports that the polar vortex is plunging temperatures to record ...

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

The arctic outbreak that has enveloped the central U.S. is hitting its peak Thursday as frigid temperatures continue to ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people, includin ...

The polar vortex hit much of America, making temperatures in North Dakota colder than on Mars. Despite this, a 90-degree warmup is forecasted for next week. This unusual weather pattern is linked to ...

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...

The Associated Press The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps ...

two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere. As the Arctic continues ...