Details of motorway and local road closures and public transport disruption are available at
BBC Travel News
For advice on handling difficult driving conditions, see the
For information about severe weather warnings, see the
For information about staying healthy in the cold weather, see the
NHS Winter Health
Seven schools in Torfaen and one in Powys were also shut.
Newbury Racecourse clerk Richard Osgood said he made his decision to abandon Wednesday's meeting after rain turned into snow.
He said: "It's getting worse and the snow is falling on the course and it's dangerous."
Forecasters say that most of the snow is settling on fields and verges.
The Environment Agency has issued several flood warnings as higher temperatures combined with heavy rainfall could result in snow thawing more quickly than expected.
A spokesman said: "Generally river levels are falling across the country, although temporary defences remain in place at Upton-on-Severn."
The latest snowfall has been caused by cold air colliding with a band of rain coming in from the Atlantic.
BBC meteorologist Philip Avery said: "An incursion of milder air from the Atlantic had displaced the colder, continental air that had dominated the UK's weather for many weeks."
This is the weather forecast for the British Isles.
The cold snap comes as the UK prepares to receive stores of grit ordered from abroad.
On Tuesday Transport Secretary Lord Adonis advised ministers that stocks of gritting salt were being replenished after supplies were heavily depleted by the snowfalls of recent weeks.
Meanwhile it has been confirmed that the bad weather between 13 December and 19 January affected the punctuality of the UK's trains.
Network Rail said 20% of trains across the network failed to run on time.
A spokesman for the Association of Train Operating Companies said that train companies had managed to keep services running in "extremely testing circumstances" and staff had worked "around the clock" to "ensure disruption remained at a minimum".
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