Motorists have been warned to beware of black ice on roads
Dozens of flights have been delayed, with Heathrow particularly affected
Trains around the UK are disrupted, while cross-Channel ferries face 90-minute delays
Amber weather warnings are still in place for England, Wales, Scotland and Northern Ireland
Thousands of homes remain without power, having been cut off by snow and high winds
Schools across the UK are closed after temperatures fell to -12C in some places overnight
Image source, PAWestern Power Distribution said 99,500 customers across the East Midlands, South Wales and south-west England suffered power cuts on Sunday.
Earlier this morning, 6,500 homes were without power.
Scottish and Southern Electricity Networks also said they had brought power back to 48,000 homes, but 800 remained without power in Oxford and Wiltshire.
The Eurotunnel shuttle service is now operating "on schedule" after five-hour delays yesterday, the firm has said.
The BBC's Simon Jones says weather conditions remain challenging, with winds of up to 90mph (144km/h) in the port of Calais.
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School closures have been announced across Coventry, external and Warwickshire, external after Sunday's heavy snowfall.
Across the area, 344 primary and secondary schools are closed on Monday.
A list of school closures in Derby, Derbyshire and East Staffordshire are detailed on the BBC News website.
The number of schools closed in Wales has risen to almost 500.
Easyjet has warned customers that some flights may be delayed or cancelled due to the poor weather conditions.
Several of the low-cost carrier's flights were cancelled at Luton Airport this morning, external, others seem to be running as normal, albeit with some delays.
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Snowfall in Northern Ireland has affected some flights at George Best Airport between Belfast Heathrow.
There have also been a number of school closures, details of which are on the BBC News website.
Driving conditions remain treacherous after temperatures reached -10C in Katesbridge, County Down.
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Virgin Trains tweets...
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Image source, ReutersRoadside company the RAC is expecting about 11,000 breakdowns on Monday, according to its spokesman.
Pete Williams said the figure is 20% higher than usual for this time of year and warned of the possibility of black ice due to low overnight temperatures.
He said journeys will take "two to three times longer" in some parts of the country.
On Sunday, the AA reported a 40% increase in call-outs.
More than 250 schools, both primary and secondary, are closed today across Gloucestershire.
Gloucestershire County Council has a full list of those affected on its website, external.
Shropshire Council has also announced about 100 school closures on its website, external, and is also advising council staff not to go to work unless they live nearby.
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Passengers trying to return to the UK via the Eurotunnel have suffered delays overnight in freezing conditions in Calais.
The company said passengers have been delayed by about five hours - although on Twitter some customers said they had to wait significantly longer.
Eurotunnel blamed earlier cancellations for the issue.
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Image source, Getty ImagesA British Airways plane being de-iced in Dusseldorf on Sunday, after snowfall across the UK and Europe
British Airways has warned passengers that its network is suffering heavy disruption after yesterday's snowfall.
The airline has already cancelled more than 30 flights before 10:00 GMT this morning from its main terminal at Heathrow Airport, external.
Press officers have been answering a slew of disgruntled tweets overnight from passengers, some complaining about a lack of communication on delays and cancellations from the airline.
Birmingham Airport, external has advised passengers that disruption might continue this morning as it manages a "backlog of flights".
A number of Emirates, Air India, Flybe and Virgin Airways flights were cancelled at 07:00 GMT.
However, Stansted Airport says it is now "fully operational" after severe disruption yesterday.
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Image source, Anthony MorrisRoad conditions were affected by the snowfall in Oxfordshire on Saturday
Energy company SSE said about 800 customers were without power in Oxfordshire last night, due to adverse weather conditions.
Most of those were in North Leach, Burford, Grove, Farringdon and Kidlington.
On Sunday, all buses in Oxford were cancelled and there was a part-closure of the M40.
A number of schools are closed across the county, external due to the weather conditions.
Disruption after the weekend's snowfall continues in Wales, where the highest snow depths in the UK were recorded over the weekend.
More than 400 schools are closed across the country, which includes 85 in Powys, 71 in Flintshire, and 150 in South Wales.
Some 400 homes are still without power, mostly around Chepstow and Monmouth.
Monday's weather: Chance of ice and snow showers
There's been a lot of snowfall over the weekend, which could lead to some treacherous conditions, the BBC's Carol Kirkwood says.
Storm Ana, which is moving towards the UK from mainland Europe, is also expected to bring windy conditions - with snow, sleet, and rain expected in parts of the south east.
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There is disruption at Heathrow airport this morning due to crews and aircraft being out of position after yesterday's snowfall.
A number of flights have already been cancelled, and passengers with cancellations are being advised not to travel to the airport.
A full list of departures is available on the Heathrow website, external.
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Over 200 schools, including primary and secondary schools, will be closed in Gloucestershire this morning.
To check if your school is one of them, visit www.glosclosedschools.com, external.
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