Siberian winds rushing into Britain are certain to bring a freezing few days this week - with many parts of the country getting snow. Motorists are being urged to take extra care as gritting lorries are sent out to prepare roads.
The worst hit areas are likely to be the North East of England and Lincolnshire with the heaviest snowfalls predicted for Thursday. But most areas will get a dusting.
"We are going to get a cold snap," warned Sky News weather presenter Lucy Verasamy. "It's turning much chillier from tomorrow morning."
She warned that the wind will prove biting cold for most of the country but it remains to be seen whether the whole of the UK will see the white stuff.
Those areas that are lucky - or unlucky - enough to get snow could be covered with up to an inch of it - more than enough to cause problems with the
transport network.
Sky News' forecasters have already warned that tonight's temperatures could drop to as low as -7C and although snow is always more likely over higher ground, central and southern England could get some, too.
Piers Corbyn, from long-range forecasters WeatherAction, said: "The winds from Siberia are going to make it extremely cold - like the conditions we experienced in January 1987 where it was -12C (10.4F) in the south.
"The average temperature for January as a whole will be close to freezing - 0.8C (33.4F) at best."
He even added that temperatures could plummet to -17C (1.4F) in the Midlands.
Some forecasters are predicting a second, more severe arctic blast to arrive in late January or early February, bringing the coldest temperatures in Britain more than a decade.
But Lucy Verasamy added that this week's deep freeze will probably be short-lived with milder temperatures and wetter weather predicted for the weekend.