UK weather maps has shown that a 290-mile wall of snow is set to sweep the country over two days at the beginning of January.
This comes with the Met Office issuing a 44-hour yellow warning for large swathes of the country.
The forecaster said up to 1ft of snow could fall between 12pm on Saturday (January 4) and 9am on Monday (January 6), with much of England and almost all of Wales warned.
Snow is set to first hit the south coast of England and the bottom of Wales on Saturday evening, including Southampton, Cardiff and Swansea.
At the same time, WXCharts forecasts that most of Scotland will be affected, as well as the Lake District and Pennines south of the border. Part of the North York Moors is also predicted to be snowed on.
By midnight on Sunday, the snow will have moved on from Southampton, and hit London, Kent. Most of Wales, up to around Welshpool, will see snow, it is predicted.
Maps suggest that snow will also fall in places like Bath, Cotswolds, Oxford and Swindon.
The area of the country between London and East Anglia is also included.
By 6am, the blanket of snow has left London behind, and is still falling over Birmingham.
The top of Wales is now covered in white on the map, with the percipitation reaching as far north as Liverpool, Manchester and Lancashire.
The East Midlands, including Lincolnshire, Leicester, Derby, Nottingham, are also to be snowed on, predictions suggest, along with a a lot of East Anglia.
The Pennines, Lake District and Yorkshire Dales are also still affected at this time, as well as most of Scotland. So far, Newcastle has remained unscathed.
By 9am, the north east of England, such as York and Hull are included in the area affected by snow on the map. At 6pm, the white stuff is forecast to have left the Midlands and south of England alone.
But it is still set to impact Manchester at this time, as well as more or less the entire country above the north west city.
Dan Holley, Deputy Chief Forecaster for the Met Office, said: “An Atlantic frontal system is likely to move across parts of central and southern UK through the weekend. With milder, moisture-laden air engaging with the cold conditions already in place this may bring a spell of snow in some areas, before possibly turning back to rain in the south.
“At this stage there is a fair amount of uncertainty over exactly which areas will see disruptive snow, with parts of Wales, northern England and the Midlands most likely to see some impacts. Here we could see 5cm or more in quite a few areas, and perhaps as much as 20-30cm over high ground, including Wales and the Pennines.
“Coupled with strengthening winds this could lead to drifting, making travelling conditions difficult over higher-level routes in particular.
“We’ve currently issued a Yellow warning for snow covering a large part of England, Wales and southern Scotland to cater for possible disruption over the weekend, but it’s quite likely this will be refined over the coming days as confidence in the forecast increases. So it’s worth keeping up to date with the latest warnings.”
