The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

The polar vortex is a “constant feature” that begins to develop sometime in September and persists through sometime in spring ...

As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of ...

After Feb dumped a wave of unconditionally severe winter weather in the US, March is about to unleash those conditions again ...

An in-depth look at the forecasted polar vortex collapse and its potential effects on weather patterns across North America ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across ...

A polar vortex collapse is expected to bring severe winter weather to Canada and the US mid-month. This event could also ...

A polar vortex collapse is set to unleash harsh winter-like conditions across North America. A polar vortex is a large ...

Millions of Americans were hit with blustery blizzards last month when a polar vortex collapse ushered in below freezing ...

The event could cause extreme winter weather and disrupt travel across the US and Canada - will it make it across the pond?

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