The UK could be set to be hit with a chilly surprise this month as the Met Office has ... weaken the jet stream pattern. "This may allow a release of cold air from the polar regions to move ...

An Atlantic storm "trapped" in a loop in the jet stream will drive soaring temperatures, tropical humidity and thunderstorms.

And now the Met Office has issued a statement on the likelihood of it affecting the UK. The polar vortex is a large area of cold air around the Earth's poles. The phenomenon causes jet stream ...

And now the Met Office has issued a statement on the likelihood of it affecting the UK. The polar vortex is a large area of cold air around the Earth's poles. The phenomenon causes jet stream ...

The Met Office forecast for ... and will probably weaken the jet stream pattern. Article continues below "This may allow a release of cold air from the polar regions to move southwards into ...