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 ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

A dangerous and potentially life-threatening stretch of cold weather has a majority of the U.S. on alert as a polar vortex invades the nation and sends temperatures tumbling to levels that haven’t ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

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