The Polar Vortex Is Forming Unusually Weakly and Is in Danger of Collapsing. This Would Speak Volumes About This Winter.

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The polar vortex, which usually keeps the cold at the poles, is forming unusually weak this year. If it collapses, it could have a significant impact on this winter: bringing more snow, frost and extreme weather. But the development is still uncertain and other global climate phenomena will also have an impact on the outcome.