10:49 GMT
Dylan Greene
BBC Wales
In Wales, emergency services have been called to motorists stranded in the snow, with bus services suspended due to “atrocious” driving conditions.
A yellow weather warning for snow and ice has been issued across most of the country until 11:00 GMT on Tuesday, with north and west Wales expected to see the worst of the cold weather.
Schools in Gwynedd and Rhondda Cynon Taf are among the worst affected this morning, with dozens closed across Wales due to health and safety concerns.
Snow has also caused disruption on the roads this morning. Those travelling on the A5, A470 and A458, among others, are seeing extra time added to their morning journeys, with police called to several stranded motorists in areas such as the A487 south of Caernarfon.
North Wales Police are advising motorists to only travel if “absolutely necessary”, and to allow plenty of time for essential journeys.
Unsafe driving conditions have also disrupted public transport in parts of Wales. Gwynfor Coaches, which runs buses in Anglesey, Caernarfon, Llanberis and Snowdonia, have suspended some services due to “atrocious” driving conditions, “much worse than expected”.