Brits are bracing for travel chaos this weekend after the Met Office issued fog warnings across the UK.
The freezing conditions will arrive in the west of the country and will also affect London and areas of the South East on Friday night.
The heavy fog is expected to stay until Saturday morning.
The warning is in place from 2am tomorrow until 11am, with those on the roads or taking flights expected to be the worst affected.
The Met Office warnings read: "Freezing fog is expected to develop during Friday night and will be slow to clear in places through Saturday morning.
"Some fog could be quite dense with the visibility falling below 100 metres at times. Additionally, freezing fog may lead to some untreated surfaces becoming slippery.
"Western England is more likely to see freezing fog persist into late morning and in a few places into the afternoon."
It comes after temperatures plunged in the UK this week, with Drumnadrochit near Inverness in the Highlands hitting -10.4C in the early hours of Thursday, making it the coldest recorded temperature of the year so far.
Topcliffe in north Yorkshire reached -7.4C (18.68F), the coldest in England, forcing Manchester Airport was forced to close both its runways due to heavy snowfall.
A plane travelling 4,000 miles from Atlanta, US, was diverted to an airport in London.
The airport said in a statement: "Following the temporary closure of our runways due to snow, we are pleased to report that operations have resumed. We thank passengers for their patience."
The cold conditions will extend into the weekend.
Dale Hipkiss, National Network Manager at National Highways, said motorists should also "allow lots of extra time" when travelling in case they encounter delays.
Milder conditions are expected to arrive early next week, with temperatures nudging towards the mid-single figures overnight by Tuesday and Wednesday.
This week heavy rain flooded the south west as the Environment Agency said up to seven temporary pumps were working at Northmoor to help reduce the water levels in the area and "we are already seeing the benefits".
Earlier this week a major incident was declared in Somerset due to the risk of flooding across the county.
Enhanced pumping began on Tuesday evening at Northmoor pumping station to reduce the amount of water being stored.
Regions and local authorities affected
East Midlands
Derby
Derbyshire
Leicester
Leicestershire
Lincolnshire
Northamptonshire
Nottingham
Nottinghamshire
London & South East England
Buckinghamshire
Milton Keynes
Oxfordshire
North West England
Cheshire East
Cheshire West and Chester
South West England
Bath and North East Somerset
Bristol
Gloucestershire
North Somerset
Somerset
South Gloucestershire
Swindon
Wiltshire
Wales
Monmouthshire
Powys
Wrexham
West Midlands
Herefordshire
Shropshire
Staffordshire
Stoke-on-Trent
Telford and Wrekin
Warwickshire
West Midlands Conurbation
Worcestershire
Yorkshire & Humber
East Riding of Yorkshire
North Lincolnshire
North Yorkshire
South Yorkshire
West Yorkshire
York
