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Fog alert in southern England: Heathrow cancels 100 flights Fog alert in southern England: Heathrow cancels 100 flights
(about 2 hours later)
Flights have been cancelled at London airports as a result of freezing fog covering much of southern England.Flights have been cancelled at London airports as a result of freezing fog covering much of southern England.
About 100 flights have been affected at Heathrow and London City has cancelled 37 flights. About 100 flights have been affected at Heathrow, London City has cancelled 37 flights and Gatwick has cancelled nine flights and warned delays are likely.
Gatwick has cancelled one flight and warned delays are likely, while Stansted has yet to cancel any flights. Neither Luton nor Stansted have yet cancelled any flights.
The Met Office yellow warning for fog - meaning be aware - covers London, South-West and South-East England and some eastern areas until 10.30 GMT. A Met Office yellow warning for fog - meaning be aware - was in place for London, South-West and South-East England but has now been lifted.
Steven Keates, of the Met Office, said there would be "dense freezing fog", particularly in the early hours. The Met Office said there would be "dense freezing fog", particularly in the early hours, but freezing temperatures and low winds could see it persist into the afternoon.
Heathrow, London City and Stansted airports - where visibility is at 100m - have all warned passengers to check flight updates before travelling. Heathrow, London City, Gatwick and Stansted airports - where visibility has been at 100m - have all warned passengers to check flight updates before travelling.
A message on Heathrow's website said: "Foggy weather across London is expected on Monday 23 January and some passengers may experience disruption to their journey as a result."A message on Heathrow's website said: "Foggy weather across London is expected on Monday 23 January and some passengers may experience disruption to their journey as a result."
It added: "Heathrow advises passengers to check their flight status with their airline before coming to the airport."It added: "Heathrow advises passengers to check their flight status with their airline before coming to the airport."
Heathrow said the effect of fog on flights there "can be more noticeable than most airports" due to the fact it operates at 98% capacity.Heathrow said the effect of fog on flights there "can be more noticeable than most airports" due to the fact it operates at 98% capacity.
London City Airport said 20 departure flights and 17 arrivals have been cancelled and warned of further disruption due to the foggy conditions. London City Airport said 20 departure flights and 17 arrivals had been cancelled and warned of further disruption due to the foggy conditions.
Gatwick said air traffic control restrictions imposed due to the fog was causing problems - which included the cancellation of five departure and four arrival flights.
Luton Airport has yet to cancel any flights, although a few are delayed.Luton Airport has yet to cancel any flights, although a few are delayed.
It said flights to Amsterdam were the worst affected due to fog at Schiphol Airport and there were some minor delays caused by late incoming flights.It said flights to Amsterdam were the worst affected due to fog at Schiphol Airport and there were some minor delays caused by late incoming flights.
Southampton said it had not cancelled any flights but was monitoring the situation.Southampton said it had not cancelled any flights but was monitoring the situation.
It added there could be problems with incoming flights landing later in the morning if the fog remained thick.It added there could be problems with incoming flights landing later in the morning if the fog remained thick.
Although the Met Office weather warning for fog does not cover the north west, Liverpool Airport also said "fog and low visibility may affect the operation this morning". Although the Met Office weather warning for fog does not cover the North West of England, Liverpool Airport also said "fog and low visibility may affect the operation this morning".
On Sunday evening, freezing fog led to two flights bound for Southampton having to divert to Bristol and Bournemouth airports.On Sunday evening, freezing fog led to two flights bound for Southampton having to divert to Bristol and Bournemouth airports.
Airport websitesAirport websites
Bournemouth AirportBournemouth Airport
Bristol AirportBristol Airport
Gatwick AirportGatwick Airport
Heathrow AirportHeathrow Airport
Luton AirportLuton Airport
London City AirportLondon City Airport
Southampton AirportSouthampton Airport
Southend AirportSouthend Airport
Stansted AirportStansted Airport
Mr Keates warned there could also be "difficult driving conditions", with freezing temperatures and a blanket of frost likely to create slippery roads.Mr Keates warned there could also be "difficult driving conditions", with freezing temperatures and a blanket of frost likely to create slippery roads.
He said: "We ask everyone to be aware of the potential impact the fog will have on the roads.He said: "We ask everyone to be aware of the potential impact the fog will have on the roads.
"If you have got an early morning flight, it might be worth double checking, just to make sure there are no delays at the airport.""If you have got an early morning flight, it might be worth double checking, just to make sure there are no delays at the airport."
Temperatures plummeted to -8C (17.6F) in parts of Hampshire and Essex on Sunday morning, the Met Office said.Temperatures plummeted to -8C (17.6F) in parts of Hampshire and Essex on Sunday morning, the Met Office said.
It added that temperatures will struggle to top 0C (32F) in the worst affected areas on Monday.It added that temperatures will struggle to top 0C (32F) in the worst affected areas on Monday.
Other parts of the country are also warning of foggy conditions.Other parts of the country are also warning of foggy conditions.
Cheshire Police tweeted a photo of conditions on Runcorn Widnes bridge and advised motorists to drive with care with their headlights on.Cheshire Police tweeted a photo of conditions on Runcorn Widnes bridge and advised motorists to drive with care with their headlights on.
Driving in fogDriving in fog
Motoring organisation the AA advises:Motoring organisation the AA advises:
Travel and weather adviceTravel and weather advice
BBC TravelBBC Travel
BBC WeatherBBC Weather
Highways EnglandHighways England