The Met Office has warned that more snow will fall across large areas of the UK as the white stuff causes travel chaos and causes school closures.
The high ground in northwest Scotland could see the worst of the conditions as forecasters predict more than 40cm of snow could fall by the end of Friday as the snow continues to thicken in the coming days .
The Met Office said Caithness and Sutherland, in north-west Scotland, were likely to suffer the worst of the snow.
Much of Britain will face snow and freezing temperatures for most of this week due to cold Arctic air with wet and windy weather sweeping through the weekend.
Around 200 schools across Merseyside, Aberdeenshire, Moray and Shetland were closed due to snowfall on Monday – Read the full list of school closures here.
More than 120 schools in Scotland are closed.
There were 22 schools in Aberdeenshire closed on Tuesday while most other schools in the area opened late, had traffic problems or were partially closed.
In the Central Highlands, 75 schools were closed and others were partially closed or opened late. 26 schools in Shetland closed.
Altnaharra, a village in the Highlands, had the most snowfall today, with 16cm while Wick in the far north of Scotland had 14cm and Aberdeen Airport had 12cm.
Drivers faced difficult conditions due to the cold weather across the North West of England, including Merseyside, Cheshire and Cumbria.
Lancashire Police said there were “a series of road traffic collisions” in the county, while Merseyside Police dealt with “a number of incidents” on the roads due to snow.
A yellow weather warning for snow and ice is in place across Scotland, much of northern England and parts of North Wales until Thursday, after which milder temperatures are forecast along with wind and rain.
An Arctic cold front has moved south across the country over the past few days, the Met Office said, leaving temperatures 5C to 6C lower than usual for this time of year.
Forecasters predict temperatures could drop to minus 15 degrees Celsius in many places on Tuesday night.
More than 40cm of snow could fall on high ground in north-west Scotland by the end of Friday as it continues to thicken over the coming days, the Met Office added.
Meanwhile, lower ground in north-west Scotland could see between 5 and 10cm of snow fall over the working weekend.
And although unlikely, there is a chance of several centimeters of snow falling in the far south of England this week.
The Met Office is reviewing the situation and any new warnings may be issued shortly.
The weekend will be milder, but westerly weather will bring wind and rain – and the potential for more weather warnings as the snow melts.
Stephen Dixon, a spokesman for the Met Office, said: “We have seen a fair amount of snow and expect more snow in coastal areas, northern Scotland, north-west England and southwest Scotland.
“It will be a continuing theme throughout this week.”
He added: “By the end of the week it looks like we will be back to more of a westerly influence, wet and windy as we get to Friday and temperatures will rise slightly.
“As Saturday approaches, you could see maximum temperatures of 11C in the south-west of England, much milder than what we have seen recently.
“On Sunday, we will see a fairly deep area of low pressure moving in that will bring strong winds and heavy rain.
“Additional hazards will be melting snow and precipitation on Sunday.”
The Government has confirmed thousands of households in England and Wales are eligible for cold weather payments.
They are intended for vulnerable people, including pensioners, to help them pay for heating when temperatures drop below freezing.
Payments will go to people living in areas where average temperatures are recorded or forecast to be 0C or below for seven consecutive days.
Payments will be made to homes across Cumbria, Oxfordshire, Yorkshire, Northumberland, Norfolk, Staffordshire and Powys in Wales.
The UK Health Security Agency has issued a cold health alert, warning of possible impacts on the health and social care sector, while the National Highways issued a severe weather warning for snow affecting north-west England on Tuesday, with road users. should plan ahead, and some rural communities warned they could temporarily experience power cuts.
Amy Fellows, national network director at the National Highway, said: “Icing conditions bring plenty of dangers such as snow and ice, so take every step possible to understand your journey ahead of time and Spend more time on the go to prepare for the unexpected.” .”
National Rail has warned the winter weather could affect train journeys all week, with ScotRail saying services on the Highland Mainline on Tuesday will be delayed by around 30 minutes.
Met Office chief meteorologist Andy Page said: “There will be widespread frost this week and we could see quite heavy snowfall in northern parts of the UK and at times strong winds could lead to drift or blizzard conditions.
“Snow and ice will cause disruption and potentially impact travel plans, making driving dangerous and roads slippery.”