The UK is set for "bitterly cold" conditions as snow and ice warnings are issued for much of the country this weekend.
As a mini "Beast from the East" is expected to hit Britain, the Met Office has warned of snow accumulations up to 10cm (4in).
Amber warnings for snow and ice are in place from 4pm on Saturday until 9am on Sunday for northwest England, Yorkshire and the Midlands, as well as in London, the South East, and east of England.
"The best way to describe this is as a real return to wintry conditions," Met Office meteorologist Mark Wilson said.
"The last couple of days have been quite mild across parts of the UK – we got to around 16C (on Thursday) in Wales – but by (Saturday) all of us will be back to very cold weather.
"Bitterly cold is the best way to describe it – temperatures on the face of it probably just around freezing, but with wind it's going to feel well below freezing."
More than 70 flights scheduled to fly to or from Heathrow Airport on Saturday have already been cancelled.
Most of the affected journeys are on short-haul routes, though some long-haul flights have also been affected including British Airways services to New York and Chicago.
Sky News meteorologist Chris England said it would turn "much colder" over the next few days, with a "raw wind from the Baltic bringing widespread snow showers".
Highways England is warning drivers of treacherous journeys this weekend and says drivers should avoid trans-Pennine roads "if possible".
More from Snow
Temperatures are expected to return to normal for this time of year by Tuesday, but Saturday and Sunday are expected to bring temperatures of freezing, with travel disruption expected.
During the cold snap earlier this month, motorists in two parts of the UK reported getting stuck for 17 or 18 hours as snow and high winds brought treacherous driving conditions.
[contf] [contfnew] 
Sky News
[contfnewc] [contfnewc]
