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

Weather analysts are divided over the polar vortex’s influence on weather and what that means for the rest of this year’s winter.

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping ...

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 ...

he term “polar vortex” usually refers ... coldest weather bottled up near the North Pole. But at times some of the vortex can break off or move south, bringing unusually cold weather south ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms ...

Different weather forces in the Arctic are combining to push the chilly air that usually stays near the North Pole not just into ... different than when the polar vortex has sudden warming, weakens ...

When the polar vortex is strong and circular, it acts as a barrier between the cold air over the pole and warmer air to the south and can speed up the westerly flow of the jet stream, helping it ...