The Met Office has issued an amber weather alert for snowfall across some parts of England and Scotland.
The weather forecaster has also warned of possible disruptions to power supplies, as well as transport delays and road blocks.
A tweet from the weather experts reads: "An Amber snow warning has just become valid for parts of northern England and central and southern Scotland
"Heavy snow is likely to bring disruption, particularly over the hills, with transport delays from impassable roads and possibly some interruptions to power.
The snow is set to fall today at 3pm and continue until 10am on Thursday morning.
Met Office Chief Meteorologist, Paul Gundersen, said; “There is cold air from the north pushing down the east side of the UK and warm air moving in from the west. Where these two air masses meet a weather front is bringing some heavy rain which is turning to snow in places."
Rain will turn to snow, initially on high ground this afternoon, but increasingly to lower levels.
The risk of snow will extend southwards into northern parts of England this evening.
10 to 20 cm of snow could accumulate above 200 metres within the warning area and some places at lower levels could see 5 to 10 cm of snow by Thursday morning.
The Met Office predicts that the snow will gradually come to a halt by tomorrow afternoon.
A yellow weather warning for snow and ice has already been issued for Saturday.
The alert covers large parts of Scotland and northern and central England.
