Motorists are being warned that parts of the country are expected to face a fresh bout of snow.
MeteoGroup, the weather division of the Press Association, predicted up to 10cm of snow in the higher parts of Wales.
Central England would also be hit and London could see some sleet.
The UK braved some of the heaviest snowfalls for decades in its 'big freeze' two weeks ago, which led to severe transport and school disruption across the country.
Rob Hutchinson from MeteoGroup said the worst of this week's snow would affect travel, though the weather is likely to clear up by Thursday.
"There's going to be some snow coming in on Wednesday... at the moment it's going to be higher parts of Wales that will see the most," he said.
"Higher parts of the West Midlands and the Cotswolds could also be affected, with some sleet or wet snow reaching London.
"The worst snowfalls could be sufficient to cause some disruption in places. But I don't think (the snow) is going to hang around. Some milder air is pushing in on Thursday, along with outbreaks of rain."
Cold air from the continent meeting a frontal system from the Atlantic is the main cause of the snow.
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