Britain is being battered by heavy rain on a dismal day for much of the country after freezing fog caused chaos around the country earlier.
And the outlook remains bleak for tomorrow with weather warnings issued for much of the west coast of Britain and northern Scotland as Storm Diana brings 80mph winds and flooding.
The storm is coming in from the Azores into a low pressure system, prompting the Met Office to issue a 36-hour warning between 3am Wednesday and 3pm on Thursday, including ‘danger to life’ conditions across coastal regions from Devon and Cornwall to the north west of Scotland and Wales.
Meanwhile hundreds of flights serving London airports were cancelled or delayed amid thick fog this morning with one in three planes disrupted at Heathrow.
By noon some 62 flights to or from London Heathrow on Tuesday were cancelled and a further 380 were delayed by more than 15 minutes.
British Airways alone saw 45 cancellations and 237 delays at the west London hub, which is the UK’s busiest airport.
Strong winds and rain are battering parts of Britain today ahead of 36 hours of misery when Storm Diana strikes tomorrow. Pictured are large waves crashing against the seafront in Southsea, Hampshire, today
Gale force winds sent huge waves crashing onto the train tracks and on top of a passing train in Dawlish, Devon today
Londoners struggled to see the landmarks on their commute this morning as fog enveloped the city. Pictured here are people walking over Westminster Bridge
Streets in Dublin, pictured, are already flooding as Storm Diana moves across Ireland towards the UK today, and is set to strike the west coast of Wales, England and Scotland at 3am
Many Brits have endured a miserable day and the outlook remains bleak for the rest of the week with several weather warnings issued across the country during Diana
Some in Dublin were able to see the funny side however, such as this woman pictured splashing through large puddles
What Parliament? The Houses of Parliament were covered in fog this morning as weather warnings were put in place around London and one in three flights were disrupted at Heathrow
London City saw 62 cancellations and 46 delays, while Gatwick experienced no cancellations but 173 delays.
The figures were published by aviation data firm FlightStats.
Fog reduces visibility for pilots and air traffic controllers, meaning the safe distance between aircraft is increased. This disrupts the normal pattern of take-offs and landings.
A Heathrow spokeswoman said: ‘This morning’s heavy fog has led to reduced visibility across all London airports which may result in some passengers experiencing disruption to their journeys today.
‘Passengers are advised to check their flight status with their airline before coming to Heathrow. As always, our top priority is the safety of passengers and we apologise to those whose travel has been affected by today’s weather.’
The conditions also caused delays to trains serving Gatwick.
A statement on the National Rail Enquiries website read: ‘Southern and Thameslink have received a number of reports from drivers that due to heavy fog they are having to run at a reduced speed due to reduced visibility.
‘When thick fog is present, drivers are unable to see signals from their normal distances and to continue to operate safely they must drive at reduced speeds so that they are able to view signals.’
The derailment of a Great Western Railway train in West Ealing at around 7am affected trains serving Heathrow.
Freezing fog is making for treacherous travel conditions for large swathes of Britain today as it prepares for a further hit of heavy rain and wind from Storm Diana tomorrow. Pictured: Early morning fog on the roads in Flintshire, North Wales
Shoppers got their umbrellas out in Winchester, Hampshire this afternoon as the rain started to fall and winds started up
The UK is not expected to emerge from this gloomy period until Friday. Pictured are waves smashing against paving in Southsea
Floods are already building up despite another two inches of rain likely to fall tomorrow. Pictured are cars spraying water as they drive through Dublin
The Thames Barrier was hardly visible this morning with London covered in a thick blanket of freezing fog
One of the lines was blocked, causing delays and cancellations to London Paddington-bound services from Heathrow and Slough.
The line was reopened around 60 minutes later but disruption was expected to continue until 6pm as services recover.
A Network Rail spokesman said: ‘Our engineers are on site and will clear the derailed train as soon as possible.’
Meanwhile, the UK is braced for a blast of gales and heavy rain as Storm Diana sweeps in from the Atlantic.
The Met Office has weather warnings in place for the north west of England, south west England, the West Midlands, Yorkshire and Humber, Wales, Northern Ireland, Scotland and Orkney and Shetland throughout Wednesday and Thursday.
They warn of severe wet and windy weather for large parts of the country, with risks of road closures, power cuts and potentially fatal damage to buildings and beach material along the coast.
There is also risks of flooding due to heavy rain with 50mm predicted to fall in 12 hours on Wednesday.
Tough conditions are the result of different weather fronts coming in from the Atlantic Ocean and Portugal as Storm Diana prepares to hit parts of the UK.
The storm, named by the IPMA Portuguese weather service, is due to make itself felt mainly over western parts of the UK on Wednesday.
A Met Office weather map shows fog across most of England, Wales, parts of Scotland Northern Ireland this rush hour
Fog covers parts of the M62 near Leeds this morning making for dangerous road conditions across the north of England
The House of Parliament were barely visible across Westminster Bridge in central London today with fog covering the city
The London Eye and River Thames were barely visible as it got light this morning with a layer of thick fog coating the capital
Joggers and dog walkers were out this morning battling foggy conditions in north London’s Finsbury Park before the rain fell
The roads were foggy in Sheffield this morning with drivers warned to expect longer journey times and difficult conditions
Lights on! Foggy weather in Morley near Leeds made for difficult conditions for commuters on the M62 this morning
Dan Harris, deputy chief meteorologist at the Met Office, said: ‘It now looks very likely that we will see a major change in the UK’s weather early in the week ahead.
‘We expect spells of wet and windy weather to sweep across the UK from the south west from Tuesday, although at the moment there is uncertainty around the timing and the focus for the heaviest rain and strong winds by Wednesday as Storm Diana approaches our shores.’
After cold but bright spells last weekend, wet and windy weather is pushing in from the south west today.
A separate system to Diana, the front will move eastwards bringing rain and blustery conditions to all parts by the end of the day.
After building in the Atlantic, Storm Diana is due to arrive on Wednesday as a low pressure system tracks to the north of Ireland.
Today temperatures will vary between 2C in parts of Scotland and Wales and 9C
Matlock Golf Club near the Peak District is closed this morning due to fog. They posted this picture on their Twitter page
Wintery scenes: A grey sky blankets Finsbury Park in north London as a dog sports a high-visibility jacket to be seen in the fog