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What is freezing rain?

Arguably the most treacherous of all road conditions, freezing rain occurred during February 2018 when ‘The Beast from the East’ collided with Storm Emma. It is a rare weather phenomenon which sees water droplets freeze into snow before passing through patches of warmer air and melting into rain. The rain then passes through sub-zero temperatures nearer the ground and freezes on contact with a cold surface like a road or car windscreen, creating an invisible lethal glaze across roads and pavements. Under these conditions, the RAC advises drivers to avoid travel.