Warning for drivers across Wales as cold takes hold
Drivers are being advised only to take to the road if their journey is essential after unusually early November snow swept across Wales.
Forecasters warned of ice on the roads for the rest of the weekend and the risk of snow in patches.
A white-out in south Wales led to a 26-mile tailback on the M4 in Friday's evening rush hour.
One of the coldest places overnight in the UK was Trawscoed, Ceredigion, at -10.2C (13.6F)
Cardiff Airport is operating normally after being closed for a short time on Friday as the runway was closed to clear away snow.
Passengers were being advised to contact their airline, check in as normal and allow plenty of time to reach the airport.
But it was the roads that were worst hit as the snow moved in.
A number of drivers have to recover their vehicle after abandoning it on the A469 Caerphilly mountain road overnight.
The snowfall led to long delays and queuing traffic in both directions on Friday evening.
Schools were disrupted, with nearly 50 schools forced to close on Friday.
A light aircraft crashed in the Brecon Beacons, and the pilot had a lucky escape.
BBC Wales weather presenter Behnaz Akhgar said after snow showers eased off in the north and west on Saturday, Wales would still be in the north east Arctic air.
"Then we're left with fine and dry conditions, and bright spells. But by no means is it going to be warm, and we're still in the cold north east arctic air.
"With highs of 1-3C (34-37F) do make sure you wear plenty of layers if you are doing any outdoor activities."
Saturday night was dry with clear skies in many areas, but heavy snow showers on northern and western coasts, and a minimum temperature of -6C (21F).
It will remain very cold on Sunday, with a widespread frost and a maximum temperature of 4F (39F), and snow showers mainly in west Wales, but perhaps more widespread at times.