A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

In summary, a strong polar vortex usually corresponds with a strong and stable jet stream, while a weak polar vortex leads to a weaker and wavier jet stream. The Met Office explains ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March ...

La Nina exits after three weak months, leaving Earth in neutral ... Obviously this isn’t the first polar vortex episode of the winter, but it looks to be the most severe.” ...

A polar vortex is a large area of low pressure and ... which should aid in relieving areas of New England experiencing weak to moderate drought conditions. Update: Prepare for freezing drizzle ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...

A significant disruption to the polar vortex over far Northern Canada will keep the pattern’s influence locked in our neck of ...

A sudden stratospheric warming (SSW) was behind the bitter winter storm which struck Britain, bringing heavy snow, ice and strong winds and leading to 17 deaths across the UK. Forecasters believe ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.