The Met Office have upgraded the weather warning of snow for Nottinghamshire on Sunday (December 9) from yellow to amber.
An amber warning has been issued for the whole of Nottinghamshire on Sunday (December 9) from 4am until 11.55pm.
A spell of heavy snow is possible over parts of Wales, the Midlands and parts of Northern England on Sunday.
Road, rail and air travel delays are likely as well as stranding of vehicles and public transport cancellations.
There is a good chance some rural communities could be cut off.
The chief forecasters assessment said: “A band of rain, heavy at times, is expected to move eastwards over the UK.
“With cold air in place, a spell of snow looks likely to develop on its northern edge.
“10cm looks likely quite widely within the warning area with 15-20cm in places.
“There is increasing certainty in the track and location of the heaviest snow.”
A yellow warning of snow and ice has also been issued for western Nottinghamshire from Friday (December 8) at 12.05am until Saturday (December 9) at 6pm.
During Friday, increasingly frequent snow showers already affecting parts of Scotland, Northern Ireland and northern England will extend across many other northern and western parts of the UK.
Two-to-five centimetres of snow is likely in places over the warning area.
10-20 centimetres of snow is possible for some locations, mainly in northern Scotland, Northern Ireland, north Wales and perhaps the northwest Midlands.
Icy surfaces are also likely to be an additional hazard especially overnight.
The heaviest and most frequent snow showers will progressively become confined to northeast Scotland during Saturday.
There are possible travel delays on roads stranding some some vehicles and passengers with possible delays and cancellations to rail and air travel.
Some rural communities could be cut off and power supplies interrupted.
There may be some icy stretches on some untreated roads, pavements and cycle paths.
The chief forecaster’s assessment said: “During winter weather which brings snow showers, it is not uncommon for snow amounts to vary considerably across short distances.
“On Friday and Saturday, the snow showers could lead to snow accumulations which vary markedly across the warning area.
“Strong northwest winds may cause drifting of the snow in places with blizzard conditions across northern Scotland.”