Weather warnings issued for freezing fog

A series of weather warnings have been issued for freezing fog, which could lead to air pollution and harsh driving conditions when frost sets in.

The Met Office said fog would be so thick that visibility could drop to as low as 50m in parts of England.

A yellow weather warning is in effect from midnight to 11am on Sunday, with the thickest fog expected in Yorkshire as far south as the East of England.

Mayor Sadiq Khan also issued a “moderate” air pollution warning for London, where fog causes poor dispersion of emissions from vehicles.

He said: “On Sunday, in addition to the extreme cold we’re experiencing, we’re also expecting moderate to high levels of air pollution.

“We all need to be careful in the next few days.

“I urge Londoners to look after each other by walking, cycling or public transport, avoiding unnecessary car journeys, idling and not burning wood or garden waste which contribute to high levels of pollution.

“This is especially important to protect those who are at higher risk of high pollution.”

But Met Office meteorologist Craig Snell said the worst of the cold spell is over and temperatures are set to rise across the UK next week.

Mr Snell said: “Next week, looking at a heavy front, looks quite benign.

“We’re starting to lose the fog risk and temperatures are generally where they should be.

“We’re likely to lose some really hard frosts. As for ice and snow, it looks like the worst is behind us.

“We need to keep an eye on the risk of fog during this cold period, although it looks like the main threats from it are beginning to diminish.”

Nighttime temperatures across the country are forecast to continue to drop below freezing over the weekend, rising to around 5C in the South East and 10C in the North.

A82

Ice warning road sign on the A82 via Glencoe (Jane Barlow/PA)

Mr Snell explained that temperatures will be cooler in the south – which is often warmer than other areas of the country – due to a change in wind direction to the northwest.

The change will see the Arctic blast that has swept across the UK over the past five days give way to warmer air from the Atlantic, but it will take longer to reach southern areas.

Several sporting events were canceled and travel canceled on Saturday due to the cold weather.

The Sky Bet championship match between Blackpool and Huddersfield was postponed due to a frozen pitch and the race meeting at Haydock was canceled due to an icy track.

The CalMac ferry, which runs from mainland Scotland to islands off its west coast, also canceled sailings due to the weather.

National Rail said there had been disruption to trains between Three Bridges in Wessex and Brighton, Hove and Sussex due to point failures, but did not specify whether this was due to ice.

It comes after temperatures dropped below minus 10C in parts of the UK this week in conditions of snow and ice.

Drumnadrochite near Inverness in the Highlands reached minus 10.4 degrees Celsius in the early hours of Thursday, making it the coldest temperature recorded of the year.

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