When there are disturbances in which the Jet Stream weakens, it can become wobbly. This allows the cold air to plunge southwards. A disrupted polar vortex does not happen every year. Very much so what ...
It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polarvortex. But what exactly is it and how does it impact our weather? The polarvortex is ...