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Weather warning issued for parts of UK amid 'perfect recipe' for fog
Visibility could fall below 50 metres in places, with buses, trains and flights facing delays as fog lingers into Monday morning.
The Met Office issued a yellow weather warning for fog across large parts of England and Wales from 6pm on Sunday until 11am on Monday, with forecasters describing conditions as the "perfect recipe" for dense fog disrupting travel.
Light winds, clear skies, and long nights create ideal conditions for fog formation, according to Niamh Murray, Met Office operational meteorologist. These factors allow temperatures to drop and saturate the air, causing dense fog that may persist in rural areas.
With visibility dropping to less than 50 metres in some locations, Heathrow advised passengers to allow extra time for journeys. The airport warned "overnight fog has affected visibility on roads," urging travelers to check airline schedules before departing.
Between Tuesday and Thursday, some "pretty welcome" rainfall is anticipated, with most areas receiving 10 to 20mm. This precipitation may alleviate severe drought conditions currently enforced by the Environment Agency across the South West and Sussex.
A weakening polar vortex in the stratosphere threatens to bring Arctic air to Britain, meteorologists warned. This atmospheric shift could result in significantly colder temperatures across the UK later this month.