The Guardian - Martin Wainwright, 12/11/12
Wednesday may prove to be coldest day of week as icy spell continues before giving way to milder weather from the west
A dog walker makes her way through Ashton Court Estate in Bristol, where temperatures dipped to -3 in the city amid bright winter sunshine. Photograph: Ben Birchall/PA
Clear skies have brought plunging temperatures to the UK with lows of –10.5C (13.1F) as a stubborn area of high pressure fends off weak assaults by warmer and wetter westerly fronts.
Severe weather warnings of freezing conditions have reached the orange (second most serious) level on much of the Met Office map, triggering local authorities and emergency services to follow the national cold weather plan.
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