A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the ...

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

two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to influence weather in the northern hemisphere. As the Arctic continues ...

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

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 ...

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

As we prepare for a very busy weather week, what comes next? We told you earlier in the month the polar vortex was going to ...

Current trend in heavy snowfall and bitterly cold temperatures is directly linked to a disruption to the polar vortex caused ...

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...