- Published
Thick fog could bring severe disruption to commuters for a second day this week across parts of England and eastern Wales.
A Met Office warning is in place for the fourth consecutive day, this time covering the Midlands, East Anglia, the northern home counties, Yorkshire and the Humber and parts of Cheshire.
uncertain
warning → publish → Cheshire
North-eastern counties of Wales such as Powys, Denbighshire, Conwy, Flintshire and Wrexham are also included in the warning.
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counties → include → warning
The warning began at 18:00 GMT on Monday and runs until 10:00 GMT on Tuesday.
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warning → begin → Tuesday
Forty flights were cancelled at Heathrow Airport on Monday before fog cleared.
On Saturday night, thick fog blanketed parts of England and Wales, making an FA cup match between Altrincham and Notts County less of a spectator sport.
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match → cancel → sport
It also caused a 30-car pile-up on the M20 in Kent on Saturday leaving two people seriously injured, as well as a 19-car collision on the A303 in Hampshire.
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It → cause → Hampshire
On Tuesday, visibility could be reduced to less than 100m in places which could lead to further travel disruption.
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which → reduce → disruption
Patchy fog could also develop outside the warning area where the skies clear.
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skies → develop → area
Southern counties of England will see breezier conditions, which should help inhibit fog formation.
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which → see → formation
However, sheltered areas could once again see some dense patches.
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areas → see → patches
The fog will slowly lift and clear through the morning and many places will brighten up.
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places → lift → morning
However, in places where the fog is most dense, it could linger on for much of the day.
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it → linger → day
Fog is not unusual at this time of year, especially as the nights become longer and the sunshine weaker.
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sunshine → become → year
High pressure can often last for days meaning the air mass does not change and becomes stagnant.
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mass → last → days
However, this week the forecast is looking changeable.
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forecast → look → ?
An area of low pressure towards the south-west of the UK will push weather fronts northwards across England and Wales.
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area → push → England
This will bring cloud, rain and brisk easterly winds later on Tuesday, making fog unlikely here on Wednesday morning.
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fog → bring → morning
It could still form to the north of the fronts across Northern Ireland and Scotland, however, and is most likely to develop across the Central Belt and the glens of the south.
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It → form → south
Towards the end of the week, a cold front will sweep southward introducing a northerly wind and arctic air with a lower dewpoint.
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front → sweep → dewpoint
This means widespread fog will become much less likely, although there will be morning frosts.
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fog → mean → ?
Advice for commuters and travellers
The Met Office advises drivers
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Office → advise → drivers
to check road conditions before setting off and use fog lights when visibility is seriously reduced
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visibility → check → lights
Visibility of 50m or less can cause severe travel disruption.
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Visibility → cause → disruption
Patchy fog can be particularly dangerous because visibility can change suddenly.
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visibility → change → ?
The RAC motoring organisation recommends allowing extra stopping distance between your vehicle and the one ahead.
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organisation → recommend → vehicle
AA president Edmund King said drivers need to be prepared to adapt their speed on the road.
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drivers → say → road
"One of the biggest mistakes is simply following the rear lights of the car in front.
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One → follow → front
It can give you a false sense of security and means you may be travelling too close to react safely if that vehicle suddenly stops," he said.
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he → give → security
If you are using public transport or flying, check for updates from your operator and follow its advice.
Flights may be delayed because aircraft need greater spacing when landing in fog.
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aircraft → use → fog
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