“As the snow turns to rain further south, and especially over Wales, there is a risk of freezing rain, a dangerous weather phenomenon which sees rain freezing instantly when it reaches the surface causing dangerous icy conditions.”

Met Office Chief Forecaster Jason Kelly said: “This weekend will bring a range of weather hazards to the UK, notable snow accumulations, freezing rain, ice and heavy rain as well as some gusty conditions.

“We have issued a number of severe weather warnings, including Amber warnings for snow and ice in parts of England and Wales. Some significant accumulations of snow are possible across parts of Wales, the Midlands and northern England in particular, where 5cm or more could accumulate fairly widely, with as much as 20-30 cm over high ground of mid and north Wales and potentially 30-40cm over parts of the Pennines.

“This, accompanied by strengthening winds, may lead to drifting of lying snow.”

The amber warnings come into force from 6pm today (Saturday), lasting through until 12pm on Sunday.

The risk of snow and ice, as well as the potential for freezing rain, looks set to bring travel misery to millions of Brits over the next few days.

Jason continued: “There is a risk of freezing rain across parts of the Midlands and northern England, but especially Wales, adding to the risk of ice and leading to some treacherous conditions in places. As the supercooled rain droplets hit the surface they instantly freeze, covering everything in a layer of ice, making it extremely dangerous.”

National Highways Severe Weather Resilience Manager Darren Clark, said: “If you are travelling this weekend, keep your distance and reduce your speed. Gritters will be out treating our roads around the clock when ice or snow is forecast, but it is still important to drive to the conditions.

“Even in conditions that seem normal and where the snow is not settling you could always experience slippery conditions.

“Drivers should plan their journeys, check their vehicles, monitor weather reports and pack a snow kit of blankets, food, water and a shovel.”