Motorists driving with snow on the roof of their cars could be in danger of a fine if caught by police.
Drivers must “remove all snow that might fall into the path of other road users”, according to section 229 of the Highway Code.
This includes windows, mirrors and the roof of the vehicle, the AA said.
If you are caught with snow on the roof of your car, you could be given a £60 fine and have three points added to your licence.
Five tips for driving in the snow
Luke Bosdet, a spokesman for the AA said that the consequences of a snowy roof could be much worse if it causes an accident.
“If you are in an accident and it is the contributing factor then in terms of punishment the sky’s the limit,” he said.
UK Weather: Beast from the East freeze – In pictures
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Three-year-old Wilfred Martin, enjoys sledding in the snow in Richmond Park, Londo
Snow storm over London
Victor the polar bear enjoys the snow at the Yorkshire Wildlife Park in Doncaster
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People walk their dogs on Blyth Beach in Northumberland
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Frozen foutains at Trafalgar Square
Stationary traffic on the M20 near Ashford, Kent
Pedestrians cross Whitehall as snow falls
Pedestrians walk across millennium bridge in front of St Paul’s as heavy snowfall hits London
A snow-covered Tube train early today Londoners woke to wintry scenes
A lorry shed its load on the M20 overnight
Kent Police RPU
Snow falls on Wimbledon Common
A London bus travels through the snow in Oxford street
Snow surrounds the Angel of the North in Gateshead
People walk past Buckingham Palac
People walk along Bankside, London in the snow
Snow at Horse guards in London
Rare snow seen at Brighton Beach
Toby Stanton walks to school in Ashford, Kent, as heavy snowfall is affecting roads across the UK
Cars travel through Great Chart in Ashford, Kent
A Eurostar train passes through Ashford, Kent
Vehicles on the M20 between Junctions 8 and 9, as heavy snowfall is affecting roads across the UK
A double decker bus carefully makes it way through the snowfall in London
Cars drive through falling snow on the A41 in Hemel Hempstead
Parents walk their children to school in Ashford, Kent
Newcastle Quayside following heavy overnight snowfall
Kent Police were forced to close several roads across the county
Kent Police RPU
A Virgin train leaves Newcastle Train station following heavy overnight snowfall which has caused disruption across Britain
Walkers in the snow near to Another Place by Anthony Gormley, on Crosby Beech near LiverpooL
Fishing boats moored in Scarborough harbour
Commuters battle the snoiw across London Bridge
If a driver is charged with “careless driving” the fine could be as high as £5000.
The spokesman warned that it was very dangerous to leave snow on the roof of your car.
He said: “You are driving along and you become one big car blizzard.
“If the snow is frozen and comes off in chunks it could be very dangerous for cyclists and other cars”.
Heavy snowfall this week caused by the “beast from the east” has sparked severe transport delays across the UK.
Road and rail networks were brought to a standstill as temperatures plummeted. Drivers are being advised to avoid unnecessary journeys and stick to major routes where possible if they must travel.
The Met Office warned of further snow showers expected on Wednesday night while Londoners were told to brace themselves ahead of Storm Emma due to hit the capital tomorrow, bringing snow blizzards, gales and sleet.
Temperatures will plummet to minus 7C in parts of London but there will be severe wind chill on Thursday as 40mph gusts blast the region when Storm Emma is predicted to bring snow blizzards, gales and sleet.
It will struggle to get above freezing in the capital tomorrow as the Met Office warned of “prolonged periods of snow” and possibly the coldest day in March on record.
A red weather alert was also issued by the Met Office for parts of Scotland between 3pm today and 10am Thursday morning.