Could the earliest weakening of the polar vortex on record bring UK snow?

An unprecedented early weakening of the polar vortex is causing uncertainty amongst experts over the impact it will have on UK weather as Simon King explains.

Could the earliest weakening of the polar vortex on record bring UK snow?
An unprecedented early weakening of the polar vortex is causing uncertainty amongst experts over the impact it will have on UK weather as Simon King explains.
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