Wind chills lower than minus-20 are forecast to reach as far south as Oklahoma ... A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move ...

The polar vortex is a gigantic circular upper-air weather pattern in the Arctic that envelops the North Pole. It's a normal ... vortex can break off or move south, bringing unusually cold ...

In the winter, this mass of air swirling above the North Pole can push deadly ... it edges south. At the bottom edge of the vortex is the polar front, or polar jet stream. The polar jet stream ...

but enough for the difference between the extremely cold air over the North Pole and the air to its south to become more uniform. That can allow for the polar jet stream, aka polar vortex ...

Such plunges occur when the air currents that keep frigid air over the North Pole — the polar vortex — weaken, and the freezing arctic air slips south and pushes the vortex down with it.

The polar vortex is like a giant, swirling pool of super-cold air in the upper atmosphere over the North Pole. Imagine it like ... air can spill out and slide south, making places like the United ...

According to the National Weather Service (NWS), the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole ...

And in a desolate part of central South Dakota ... cold weather to places far away from the pole. In early 2025, the stratospheric polar vortex was mostly normal, strong and anchored from Siberia ...

The polar vortex is a low-pressure system of cold air that swirls above Earth’s poles. There’s one over the South Pole in Antarctica – but for this story, we’ll be focusing on the one ...

A polar vortex, a massive pocket of frigid air that swirls in place over the North Pole, is expected to spill out and push Arctic temps south. The New Jersey-Philadelphia region should feel the ...

Harsh weather moved west on Monday as a polar vortex was expected ... bottled up near the North Pole. But at times some of the vortex can break off or move south, bringing unusually cold weather ...