Heavy snow is already coming down in Coedpoeth in Wrexham County
The Met Office has upgraded its weather warning for north Wales as the country braces for heavy snowfall.
Almost 350 schools have already announced they will be closed throughout today.
The amber warning is active from midday today (Thursday 9 March) until 9am tomorrow (Friday 10 March).
It affects the following counties:
How the snow is impacting travel:
The heavy snow is already causing disruption on several roads making them impassable, including the A5 in Llangollen and the A4086 in Caernarfon.
Transport for Wales is reporting major delays on the Aberystwyth to Shrewsbury line.
A wider yellow warning for snow remains in place until 2pm on Friday 10 March.
It cover the whole of the north and parts of mid Wales.
SP Energy Networks has issued safety advice in the event of any power cuts caused by the weather.
It has published top tips which include:
Have the national 105 emergency helpline on hand
Store a battery or wind-up torch
Beware of fallen power lines
Keep your mobile charged
Keep the heat in
Yesterday, the south Wales valleys were worst affected with all schools in the Rhondda Cynon Taf council area closed from Wednesday lunchtime.
The Met Office tells people what to expect over the coming hours:
Travel delays on roads are likely, stranding some vehicles and passengers
Some delays and cancellations to rail and bus services are likely
There is a good chance that some rural communities could become cut off
Power cuts are likely and other services, such as mobile phone coverage, may be affected
Injuries from slips and falls are likely on icy surfaces
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