Commuters are being warned of icy roads and travel disruption, as temperatures plummeted again overnight across the UK.

Fresh weather warnings have been issued, with snow, ice and fog forecast across southern England, Wales, Northern Ireland and northern Scotland on Thursday.

It will be mainly dry elsewhere with winter sunshine, but temperatures could fall again to as low as -16C on Thursday night.

The cold snap has already brought heavy snowfall to some areas, and dozens of flood alerts and warnings are in place due to either heavy rain or melting snow.

On Wednesday the lowest temperature recorded was -8.4C (16F) in Shap, Cumbria, according to the Met Office.

It comes as an amber cold health alert remains in place for all of England until Sunday, meaning the forecast weather is expected to have significant impacts across health – including a rise in deaths.

The Met Office says travel disruption to road and rail services is likely on Thursday in areas covered by warnings, as well potential for accidents in icy places.

There are five warnings in place:

• A yellow warning for snow and ice is in place for northern Scotland until midnight on Thursday
• A yellow warning for ice has been issued until 10:30 across southern England and south-east Wales
• Two yellow warnings for snow and ice are in force until 11:00 GMT – one across western Wales and north-west England, and south-west England; and another for Northern Ireland
• A yellow warning for fog until 09:00 in Northern Ireland

On Wednesday snow caused some roads to close and motorists to be stationary for “long periods of time” in Devon and Cornwall, according to authorities there.

Gritters working into Thursday morning have been fitted with ploughs to clear routes in the area.

Car insurer RAC said it has seen the highest levels of demand for rescues in a three-day period since December 2022.

“Cold conditions will last until at least the weekend, so we urge drivers to remain vigilant of the risks posed by ice and, in some locations, snow,” said RAC breakdown spokeswoman Alice Simpson.

National Rail have also advised passengers to check before they travel, as ice and snow can mean speed restrictions and line closures.

On Wednesday evening, poor weather was affecting Northern and Great Western Railway.

Buses are also replacing trains between Llandudno Junction and Blaenau Ffestiniog until Monday.

The wintry conditions have caused significant disruption across the UK since snow swept many parts of the country at the weekend.

Hundreds of schools were closed in England, Scotland and Northern Ireland, including schools in Yorkshire, Merseyside, the Midlands and Aberdeenshire.

The country has also been hit by widespread flooding in recent days. Currently there are 68 flood warnings – meaning flooding is expected – in England and three in Wales.

The weather is expected to be less cold over the weekend.