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

"The latest forecasts suggest the polar vortex is unlikely to return to its normal position over the pole or re-strengthen ...

When things are normal in winter, the two work in synch — or out of synch — with occasional outbreaks of cold into the lower latitudes. However, when the stratospheric polar vortex weakens and ...

On March 9, the polar vortex wobbled and then snapped back the other way as mighty winds, suddenly shifting from the west to the east - something that typically happens once a year - usually in the ...

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.

The polar vortex is a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole (as its name suggests). It's a normal pattern that's stronger in the winter ...

The Polar Vortex in the upper atmosphere has disintegrated ... since the mid-level air mass will be 12–16 °C cooler than normal. As a result, Tuesday is going to be chilly.

Scientists say a "swirling polar vortex" miles above the Earth caused ... a single week by around 80% compared with when the SPV is normal. Image: Storm Franklin caused flooding in Belper ...

The polar vortex is a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole (as its name suggests). It's a normal pattern that's stronger in the ...

An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.