Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor plans.

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

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

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy ...

A major shift in the weather pattern could have millions ... Advertisement Not every cold snap is connected to the polar vortex, but when it does go on the move, it can result in some of the ...

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

Advertisement Advertisement As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March, ...

Cold weather is expected to blanket New York through mid-April, bringing the chance of freezing temperatures, snowfall, as ...

Forecasters predict the warm weather streak will fade as pockets of cold fronts move into New England later this spring. Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex ...

The Met Office says there is an 80 per cent chance of sudden stratospheric warming in March, which could bring severe and cold weather ...