A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

Spring may have technically sprung in the Northern Hemisphere, but the lingering impact of the collapsing polar vortex could ...

The polar vortex in the stratosphere broke up, which caused the movement of cold Arctic air towards southern latitudes, ...

Researchers say a spinning mass of cold air in the stratosphere above the Arctic in 2022 made it up to three times more ...

Researchers from the University of Leeds have found there was an extremely strong stratospheric polar vortex (SPV ... cent compared to when the SPV was normal, they added.

A polar vortex collapse occurs when air in the stratosphere heats up significantly, displacing the vortex from its normal position at the poles and possibly moving it over the U.S. A polar vortex ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

Powerful winter storms which led to deaths and power outages in the UK and Ireland were made more likely by an intense ...

Several days into the start of spring, wintry weather has returned following the arrival of a cold air mass.AccuWeather’s ...

When the polar vortex weakens or reverses, it can spell colder winter weather in the UK. The polar vortex is currently in its normal strong cyclonic westerly state, but may reverse in a few days. The ...

Scientists say a "swirling polar vortex" miles above the Earth caused three deadly storms in the UK and Ireland ... likelihood of three or more storms reaching the UK in a single week by around 80% ...