An England-wide amber health alert has been extended to Tuesday as temperatures are expected to continue to fall over the weekend.
The UK Health Security Agency extended the alert, which was previously in place until Sunday, meaning that cold weather impacts are likely to be felt across the whole health service.
“This weather can have a serious impact on the health of some people, including those aged 65 and over and those with pre-existing health conditions, and it is therefore vital that we continue to check in on friends, family and neighbours that are most vulnerable,” the agency said.
“These people could be more at risk of heart attacks, stroke and chest infections as a result of cold temperatures.”
Separately, yellow warnings for ice issued by the Met Office are in place in much of the south-west and Wales, Northern Ireland and northern Scotland, as well as the east coast of England stretching from Northumberland to Essex. The warnings expire late morning on Friday.
Liam Eslick, a Met Office meteorologist, said: “It’s going to be another cold couple of days, and recovering into the early part of next week.
“Anywhere across the UK is likely to see those temperatures dipping below freezing and likely to see quite severe frost and ice to form overnight tonight.”
Devon and Cornwall could turn cloudy on Friday with some outbreaks of rain as a front moves towards the south-west, and Dartmoor and Exmoor are likely to see snow.
There is a chance of snow across northern Scotland and possibly the very north-east of England on Friday.
Eslick said: “Because that rain is falling on some pretty cold ground, it is likely to turn to icy conditions as well.
“So, we are telling people to take care if you are travelling around with these cold temperatures for tomorrow, but at least it’s quite settled and away from that freezing fog it will be nice, bright and sunny”.
Friday night is predicted to bring the lowest temperatures of the cold snap in parts of Scotland and northern England, with temperatures between -15C and -20C possible.
The weather will slowly warm as Monday nears.
Eslick added: “Saturday is still going to be another cold one, unfortunately.”
Snow and winds have so far brought travel disruption, with rail lines forced to close.
Hundreds of schools in Scotland and about 90 in Wales were shut on Thursday.
The RAC said it had seen the highest levels of demand for rescues in a three-day period since December 2022.
