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'Polar vortex' could weaken as early as November instead of January, sending freezing Arctic air towards Britain, forecasters warn

A social-media post warning that the polar vortex has "resurrected," as forecasters now say winds could collapse to just 4.15 m/s by November 3, weeks earlier than predicted.
A social-media post warning that the polar vortex has "resurrected," as forecasters now say winds could collapse to just 4.15 m/s by November 3, weeks earlier than predicted.

NASA forecasts show the polar vortex's wind strength could collapse to just 4.15 m/s by November 3, far earlier than the January 2027 weakening originally predicted. A sudden stratospheric warming event could snake the jet stream, pushing a prolonged cold, dry spell across northern Europe including Britain. MIT polar vortex expert Judah Cohen puts the odds of a full wind reversal at around 25%, but warns the vortex will "stretch" this week.

The Met Office says cold easterly winds on the weather boundary could bring snow, as happened in early 2018.

European Centre for Medium-Range Weather Forecasts models predict a sudden stratospheric warming could arrive as soon as November 6.

A polar vortex disruption this early is described as almost unheard of and potentially one of the earliest since the satellite era began.

MoreThe IndependentExperts give update on whether polar vortex will hit the UK this NovemberThe IndependentMapped: Where in the UK will see snow this week as first flurries of winter predictedGB NewsMet Office warns 'significant snowfall' will remain part of Britain's weather as Polar vortex loomsHuffPost UKThe Polar Vortex Could Weaken Earlier Than Usual. Here's What That Could Mean For UK Weather
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