More snow, coupled with black ice, is forecast. London Weather Centre warned of snow showers, widespread frost and freezing fog today and tomorrow.
Most snow will die out in the east on Wednesday, but rain and sleet from the Atlantic could reach Scotland and Northern Ireland later in the week.
The icy easterlies, which gave much of the country its first taste of winter snow yesterday, brought hazardous road conditions to Scotland and many eastern and central parts of England. It was also the first time snow has laid on the ground in central London in November since 1969.
The RAC was advising motorists to avoid minor roads, use dipped headlamps, listen to weather forecasts, keep vehicles topped up with anti-freeze and carry blankets.
A minibus passenger was taken to Dundee Royal Infirmary with a 5ft metal fence post embedded in his stomach last night after the vehicle left the road in Kingsway, Dundee, in a blizzard. Earlier visibility was down to 30 yards due to freezing fog in the Snake and Woodhead Pennine passes, where conditions were described as treacherous. There were 25mph restrictions on some eastern sections of the M25.
A search in the Brecon Beacons for a helicopter which disappeared on Saturday was called off after wreckage and the body of the pilot, Martin Shufflebottom, 42, of Dyfed, were found near Talybont Lake in mid-Wales.
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