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 Europe into a bitterly cold spell just days before the official arrival of spring.

This week’s snow storm should help diminish moderate drought across northern Wisconsin and bordering Upper Peninsula counties, while a long-range forecast from the National Weather Service slightly favors above-normal precipitation in the region from now through May.

A polar vortex collapse is expected to bring severe winter weather to Canada and the US mid-month. This event could also affect the UK and Europe, disrupting weather patterns as cold Arctic air spills southward,

Reports of an impending polar vortex collapse are circulating online, with some forecasts claiming that Arctic air could plunge into North America and extend winter well into March. But according to Environment Canada, those forecasts don’t hold up — at least not for Ottawa.

What is the polar vortex? The polar vortex is a large area of low pressure, cold air around the Earth's poles that blows westward during the winter

The polar vortex that has dealt the most brutal winter to much of the US in recent years is about to be broken down – but not before unleashing a late-season cold and the biggest yet. A stratospheric warming event has begun,

A polar vortex collapse is set to bring freezing cold temperatures and travel chaos to large parts of the US and Canada in mid-March, with the UK also at risk of a temperature drop

The Met Office has declared it is "almost certain" that a sudden stratospheric warming will hit Britain in mid-March, potentially bringing a cold snap to the UK. A spokesman for the meteorological service told GB News: "The stratosphere polar vortex is now weakening rapidly.