In winter, it expands, sending cold air southward and causing temperatures to drop. The ... When the polar vortex is strong, the jet stream tends to flow more powerfully and steadily in a circular ...

A DROP of liquid heavier than water ... This is a very slowly whirling vortex ring. As it proceeds, the radius of the ring is augmented, and it begins to disintegrate into several minor vortex ...

A shift in the polar vortex could bring a blast of Arctic air to millions of Americans in the second half of March, ...

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

The primary element is installed in the pipe and creates a pressure drop, so that the pressure ... is less likely when using a vortex meter, because the meter will indicate almost instantly when there ...

The polar vortex disruption will cause Arctic air to flow south into North America. However, it's not yet clear how severe its impact will be. With the warmer temperatures of spring approaching ...

The Met Office says the UK is highly likely to see a polar vortex collapse in March - the ... spell is set to come to an end, with a sharp drop in temperatures expected next week as a band of ...

In winter, it expands, sending cold air southward and causing temperatures to drop. The vortex's winds ... When the polar vortex is strong, the jet stream tends to flow more powerfully and steadily in ...