RecentNews.uk
The polar vortex has experienced an unprecedented collapse much earlier in the winter season than recorded in historical data.
Upper-level Arctic winds reversed direction, removing the natural atmospheric dam that normally locks freezing air near the North Pole.
Forecasters warn that reliable 10-day models cannot yet predict where the resulting cold air masses will eventually spill.
The disruption is compounding with the strongest El Niño on record, creating an unpredictable overlap of extreme climate phenomena.
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