A yellow warning for fog has been issued across parts of England and Wales which risks travel disruption, including to flights.
The warning continues until 7am on Friday across much of Wales, north of Merthyr Tydfil, as well as parts of the West Midlands and North West England, between Hereford and Lancaster.
Check the forecast where you live
Fog patches will become widespread and dense in places during Thursday evening, with visibility falling below 100 metres in places, the Met Office has said.
Drivers have been warned to check conditions before travelling. “Bus and train services, as well as flights and ferry travel, may also be affected,” the forecaster added
The fog is set to eventually thin and lift into low cloud late overnight or early on Friday morning,
A fog warning is in force until 7am on Friday. Pic: Met Office
Current forecasts at both Manchester and Liverpool airports suggest a risk of fog, which has the potential to disrupt flights.
The latest Terminal Aerodrome Forecast (TAF) for Manchester Airport shows conditions are expected to deteriorate overnight with a 40% risk of dense fog developing, potentially reducing visibility to 300 metres.
Meanwhile, at Liverpool John Lennon Airport, there is a 30% risk of fog below 300 metres.
In both areas, visibility is set to improve on Friday morning.
A spokesperson for Liverpool airport told Sky News: “With fog forecast to remain in the area overnight and into Friday morning this may cause disruption to some flights and passengers travelling should contact their airline for the latest information”.
In a statement, Manchester airport told Sky News passengers should allow extra time to get to the airport to compensate for potential travel disruption, but it is “well placed to keep operating safely in low visibility conditions”.
The Met Office had also issued a yellow warning for rain until 10pm on Thursday evening across a large part of southern and southeast England.
Forecasters warned of flooding as a result of “heavy rain falling on saturated ground” with the potential for 4 to 5cm (1.57 to 1.96in) in some isolated spots, and gusts of around 50mph along some exposed coasts.