People across large parts of the UK have been told to watch out for ice as they make their way to work and school on Monday, after temperatures plunged overnight.
Thermometers were forecast to fall to -2C in London, -1C in Cardiff and -3C in Edinburgh and Belfast. Temperatures in Highland areas of Scotland could be as low as -10C.
Two yellow warnings were in place for ice and snow: treacherous conditions would potentially last until 10am on Wednesday in Scotland, while the warning for ice in northern England, north Wales and Northern Ireland was in place until 10am on Monday.
There could be sub-zero temperatures across the UK again on Monday night going into Tuesday.
Cold conditions have moved in from the Arctic over the weekend, following a weather front that brought rain and flooding in the last week. Rescue workers were out in boats in York at the weekend after the riverside area of the city flooded. Other parts of the country, including Worcestershire, Herefordshire and Gloucestershire, still have areas under water.
More than 100 flood warnings remained in place across England, where the Environment Agency said flooding was “expected”.
The areas mainly affected are along the River Severn, the River Avon, and for groundwater in parts of Dorset, near Dorchester and Bournemouth. A total of 172 flood alerts, meaning flooding is “possible”, were still active.
Rail passengers faced delays in south-west England after a 44-metre landslide on the line between London and Basingstoke left track hanging in mid-air. People travelling through the area, near Hook in Hampshire, were told to avoid all but essential travel on trains. It affects services between London and Basingstoke, Bournemouth, Exeter, Salisbury, Southampton and Weymouth.
Mark Killick, Network Rail’s Wessex route director, said: “This is a huge landslip and will have a massive effect on customers. The main line to Basingstoke is the spine of our railway and there will be knock-on impacts across the route.”
One flood warning remained in place in Wales, near the River Wye in Monmouth. A total of 13 flood alerts were still active less than a week since serious flooding knocked out power to some homes around Newport, in south Wales.
There were no active flood warnings in Scotland and Northern Ireland.
Craig Snell, a meteorologist at the Met Office, said: “This could be a problem during rush hour, it could cause a few problems on the roads. The risk of flooding is still there.”
Snell said that while the weather may clear from mid-morning, the rest of the week would be cold with patchy showers.