UK weather: Dense fog leads to travel warning with visibility below 100m at -4°C

The UK is poised for dense fog, with the Met Office issuing a yellow weather warning for much of England as temperatures could drop to -4C

The Met Office warns of dense fog for the UK

Britons are warned of widespread fog and freezing temperatures down to -4C which will create dangerous travel conditions.

This week saw a split in the weather with some clear skies and mild temperatures into the mid-teens in Scotland, while the south of England was bitterly cold and people were waking up to a lot of fog.

The Met Office issued a fog warning Friday for much of England and Wales, while there are also warnings of very high pollution levels in London and the south east.

With Office forecaster Clare Nasir said: “Warnings of dense fog until Friday morning causing problems on the roads and it is likely to last all morning in one or two sensitive spots.”

The Met Office’s fog warning covers much of England

Similarly, BBC forecaster Tomasz Schafernaker warned: “For some of us it will be a very foggy start to Friday, if you plan on traveling through the morning make sure you keep calm, especially through parts of Wales, Central and Southern England.”

The Met Office warning says people should expect: “Slower travel times with possible delays for bus and train services. There is a chance of flight delays or cancellations.”

The warning, which is in effect until 11 a.m., said visibility could be reduced to less than 100 metres, making it dangerous for motorists on the road.

Ms Nasir added: “That fog will reform and become quite widespread, especially in East Wales and central England.

“Some showers of frost and fog for Northern Ireland as well, but fairly widespread frost everywhere from the southern part of Yorkshire to the south, so a cold start to the day will come Friday morning and that fog will be a problem during the morning rush.”

Temperatures can drop to -4C in southern England


James Linsell-Clark/SWNS)

High pressure area over the south of the UK is causing the foggy conditions and cold temperatures.

“There is quite a temperature difference in the UK and in fact the wind is just about from the Atlantic over Scotland and so frost free here and frost free in Northern Ireland,” said Tomasz Schafernaker.

“The frost will fall over the southern part of England and Wales where it will be -4C in one or two parts. It’s here where the fog will form in the middle of this high pressure and some of this fog will linger until in the afternoon.”

The BBC forecaster also warned of high pollution levels.

High pressure and fog are set to produce “very high” pollution levels


Tom Wren SWNS)

He added: “The problem with the high pressure and windless conditions, particularly in London and the South East, is the pollution that sometimes happens when you have these very stable conditions with the light wind and the pollutants get trapped in the atmosphere in urban areas and we’re getting some very high levels.”

During the day, lighter periods are expected, especially in the north of England and Scotland, especially in the north of England and Scotland, but not as mild as north of the border.

UK weather forecast for the next 5 days


In England and Wales, patches of fog persist in places, but most of the time it clears to allow plenty of sunshine. Temperatures close to average, although cold where fog remains. More clouds in Northern Ireland and Scotland, some light rain in the far north.

This evening:

Clear skies over England and Wales, causing frost and some icy fog patches, especially in the central and eastern parts. Further north and west more cloudy and milder, some drizzle.


Cold over eastern England with slowly rising fog and low clouds. Most parts dry but rather cloudy with only short clear periods. A few light showers in the west.

Outlook for Sunday to Tuesday:

Widely deployed on Sunday, cloudy at first, becoming sunny from the north. Monday and Tuesday, dry and clear after early fog clears.


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