Snow and ice will cause widespread disruption across the UK just as the country recovers from a battering from Storm Bella.
There are three weather warnings, all for snow and ice, in place today for Northern Ireland, much of Scotland and swaths of northern England.
And the Met Office has also issued a yellow weather warning for much of Wales, central and southern England - including London - from midnight tonight until 6pm tomorrow.
They warn: "Rain may turn to snow, which along with widespread ice, will lead to the potential for some disruption to travel and utilities."
The extreme weather comes after much of the UK woke up to assess the damage from the wet and windy Storm Bella.
Winds reached more than 100mph overnight and two threat to life flood warnings remain in place in Northamptonshire after days of wintry weather across the Christmas break.
The top wind speed was recorded at the Needles on the Isle of Wight where it reached 106mph overnight on Saturday.
Aberdaron in north west Wales experienced gusts of 83mph, and locations on the south coast of England, including Dorset, got close to 80mph.
Fire crews in north Yorkshire rescued a number of people from vehicles stranded in floodwater overnight.
North Yorkshire Fire and Rescue Service said they used a boat to rescue two men and two dogs from a vehicle stuck in flowing floodwater in Hawes at 12.37am on Sunday.
In Aysgarth, a man and a woman were also rescued by boat from the roof of their car at 2.40am after they drove into deep floodwater.
And firefighters walked a woman to safety through shallow water in Wensley at 3.35am after a minor collision while driving through floods.
The disruption continued into Sunday morning when flooding on the tracks caused cancellations and delays.
All trains between Bournemouth and Southampton Central were stopped due to water on the line, Great Western Railway said, and one of the major lines into London was also blocked when a tree fell on to the tracks in Haslemere, Surrey.
Two severe flood warnings indicating a potential threat to life are still in place at Cogenhoe Mill caravan site near Northampton and on the River Nene near Billing Aquadrome on Sunday morning.
On Sunday, yellow weather warnings for ice and snow remained in place across Scotland, northern England, Northern Ireland and parts of north Wales.
Snow and sleet is a possibility in Scotland from Sunday morning, and will move south throughout the day, bringing the risk of ice and bad driving conditions.
Through the evening and into Monday, meteorologists are warning the snow and ice could also pose a risk to more central and southern areas of England.
Further into the week and towards the New Year conditions will remain cold with sunshine and the possibility of wintry showers, the Met Office said.
