The Met Office has issued an amber warning for parts of mid Wales with forecasts of as much as 30cm falling in places. Nearly 300 schools in Wales are closed on Thursday as heavy snow falls.
The area affected by the amber warning is mainly in the Powys area where it is reported to already be snowing heavily. It states: "Snow is expected to become persistent and, at times, heavy again later Thursday afternoon onwards into early Friday. During this time, many places are likely to see 10-20 cm of snow with a chance of up to 30 cm falling, this most likely over higher ground above 200 metres.
"As well as snow, freezing rain is possible giving icy conditions in the south of the warning area, bringing additional hazards to infrastructure and travel."
Read more: Live updates as more heavy snow forecast for Wales and disruption expected
The warning is in place from midday on Thursday until 9am on Friday.
There is also an amber warning in place in northern England.