Radiation fog SHROUDS Britain: Mist to cloak UK again as Met Office issues SEVERE warning
The Met Office has issued a second severe weather alert in two days for troublesome mists across eastern England.
It warned much of the country could be affected with ideal fog conditions forecast over the next 12 hours.
A foggy start today saw parts of the country wake under a swirling pea-soup leading to some delays and travel problems.
Drivers are once again warned to expect delays on roads and motorways tomorrow with airports also likely to be affected until around 10am.
Clear skies over western Britain will cause temperatures to fall rapidly tonight triggering widespread patches of ‘radiation fog’.
It is so-called because heat radiating from the Earth’s surface cools the ground causing water to condense in moist air above leading to mist formation.
Eastern England will be affected by low-level clouds leading to poor visibility at higher levels and over hilly regions.
Met Office forecaster Steven Keates said: “Fog is going to be the focus again tonight and into tomorrow morning and it is a bit of a messy picture.
“The west will be affected by radiation fog due to clear conditions today which will allow the ground to cool over the next few hours.
Clear skies over western Britain will trigger widespread patches of ‘radiation fog’
“Further east we expect more hill fog and low-level clouds, one way or another by tomorrow morning there is the potential for fog across large areas of England and Wales.
“It will be quite patchy in nature, so not everywhere will be affected, but people having to travel early in the morning should allow a bit more time for their journey.
“Visibility will be down to 100 metres or below in parts and this will certainly be low enough to cause disruption on roads and at airports.”
A severe weather warning has been issued across a large swathe of western England and parts of Wales until mid-morning.
Most at-risk regions include Bath and North East Somerset; Bristol; Devon; Dorset; Gloucestershire; Somerset; Blackpool; Manchester; Lancashire; Wales; Herefordshire; Shropshire; Staffordshire; Stoke-on-Trent; Warwickshire; Worcestershire and the West Midlands.
The Met Office has issued a second severe weather alert in two days for troublesome mists
Met Office chief forecaster Andy Page said winds will start to pick up later in the morning helping fog to clear.
He said: “Patchy fog will reform where cloud breaks this evening and overnight with visibilities locally falling below 100 metres.
“Fog will clear from western parts of the warning area as the wind strengthens on Friday morning.
“Slower journey times are possible and there is a chance of delays to flights.”
The RAC advises drivers take extra care during foggy commutes and to allow more time for journeys.
Many parts of the UK will be affected by low-level clouds leading to poor visibility
A spokesman said: “Before entering fog, you should check your mirrors, then slow down.
“Use your lights if visibility is reduced to 100 metres or roughly the length of a football pitch.
“If visibility is very limited, wind down your windows at junctions and crossroads to allow you to listen out for approaching traffic.”
Britons are wrapping up for another chilly night with temperatures expected to widely fall below freezing.
Mr Keats said while some towns and cities will manage to stay in positive digits those in rural regions will be scraping cars tomorrow.
Drivers are once again warned to expect delays on roads and motorways
He said: “There will be a marked variation from place to place, some people may have to scrape their windscreens elsewhere temperatures might not drip below 3C (37.4F) to 5C (41F).”
WeatherOnline forecaster Simon Keeling said other than a foggy start much of the country will be dry and brought tomorrow.
He said: “A chilly, misty and, in places, foggy start to Friday is expected, but otherwise much of Friday will then be dry with some bright or sunny intervals.
“There will be variable amounts of cloud at times, this will be more extensive across central and eastern areas of England.
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“Winds will be light southerly with temperatures around 3C (37.4F) to 7C (44.6F).”
Netweather forecaster Paul Michaelwaite added: “It will be another night of patchy frost and fog, along with plenty of low cloud.
“Then tomorrow sees a very similar start to the day to today.
“But change will be on the way in the west, as cloud thickens and winds strengthen as the day wears on.
“Further east though, it’s definitely a case of as you were, with a lot of cloud, and mostly light winds.”