A rare split polar Vortex will plunge millions of Americans into freezing temperatures as it's set to blast powerful cold air ...

Antarctica’s polar vortex could be about to split in two for the first time in more than 20 years after a series of sudden spikes in stratospheric temperatures.

When the polar vortex is strong and stable, that cold is concentrated over the North Pole. However, it’s when that vortex is disturbed by influxes of warm air that we see changes in the air flow.

A 'polar vortex split' could be about to dump 11 inches of snow on the UK thanks to cold air descending rapidly and causing wintry havoc. The country has recently felt the brunt of storms Eowyn ...