Chief Inspector Nicky Searle of Dorset Police said they have put in place contingency plans to maximise the level of service that can be provided across the county.

She added: “Local authorities are invoking emergency planning arrangements and the emergency services are sharing resources and enlisting voluntary assistance to ensure vehicles and personnel stand the best chance of reaching those in need.

“We would encourage members of the public to stay safe by following our advice.”

• Do not to drive in snow or icy conditions unless it is absolutely necessary.

• If motorists have to drive, ensure the vehicle is roadworthy for the conditions – check tyres, windscreen washers and wipers, lights, petrol and oil levels and that the heater works.

• Make sure that any snow or ice is cleared from the windscreen and other windows of the vehicle before driving and carry warm clothing, a blanket and a flask containing a hot drink in case your vehicle breaks down or you become stranded.