Read our privacy notice Thanks for signing up to theMorning Headlines email {{ #verifyErrors }} {{ message }} {{ /verifyErrors }} {{ ^verifyErrors }} Something went wrong. It comes as forecasters warned a “polar vortex” – the phenomenon that helped to cause the “Beast From the East” winter storm of 2018 – could hit Britain in February. What is a polar vortex? The strength of a polar vortex varies from year to year. Formed by a disordered polar vortex breaking out of the Arctic into Central Europe, it was formed on 22 February 2018, made landfall in the UK on 2 March and finally dissipated on 5 March.
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