A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson ...

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

Several areas of the country are likely to witness snowy conditions over period of five days, weather maps have suggested.

Metro Vancouverites may face unseasonably cold weather as February continues thanks to the stratospheric polar vortex.