Ice warning in Dorset with melted snow set to freeze
Treacherous icy conditions are expected across Dorset with temperatures set to plummet to -9C (16F) overnight.
More than 170 schools were forced to close on Thursday as heavy snowfall hit parts of the county.
Dorset County Council has sent out its fleet of of 26 gritters to treat major roads in a bid to stop melting snow turning to ice.
Bournemouth Airport will remain shut until at least 0800 GMT on Friday. A Sharm el Sheikh flight was cancelled.
The Thomson-operated flight had about 180 passengers booked to travel, who have been advised to contact the operator.
Meanwhile South West Trains has reported a reduced train service across the network out of London Waterloo.
And slow traffic and hazardous driving conditions were reported on the A30, A35 and A37 because of snow.
Motorists are being advised to take extra caution on the roads and avoid non-essential journeys.
Bin collections have been cancelled in Bournemouth, Poole, Purbeck and East and West Dorset as it was "too dangerous" to send vehicles and staff out.
Mick Swift, from Hengistbury Head, Bournemouth, told the BBC he had not seen snow like it outside his house in 23 years of living there.
Bournemouth University has suspended all teaching due to the adverse weather conditions.
Dorset County Council said two further salting runs will be taking place across its 680-mile network, at 2000 GMT and 0500 GMT.
The council said: "This will help keep salt on the roads to prevent melted snow from freezing.
"Roads off the salted network are currently very difficult to travel on and some are blocked or impassable at present.
"If they must travel, motorists are advised to stick to the salted network as much as possible and to take extra care."