At the centre of the vortex the fluid flow is well defined — it is either clockwise or anticlockwise — but in the outer region, the direction is less obvious, leaving the orientation of the ...

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

The term “polar vortex” might conjure images of mythical icy storms swirling through the North Pole but in reality it’s a crucial component of our ... Read more The post What Causes the “Polar Vortex” ...

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

When the polar vortex is strong, the jet stream tends to flow more powerfully and steadily in a circular pattern around the poles, effectively containing the cold air within the polar regions.