A torrential downpour overnight has left large stretches of London’s transport system and city centre shopping areas underwater.
Heavy rain early this morning has caused flooding in Knightsbridge in West London, leaving the high end shopping district knee deep in water.
The dramatic weather event will have also caused commuting misery for hundreds of thousands this morning.
Transport for London has said at least four lines are partially suspended or severely delayed due to the huge build up of water.
Roads into and in the city have been left submerged following the downpour in the early hours.
Footage from Knightsbridge shows a main road in the upper-end area completely covered in roughly half a foot of water.
Further north in Hampstead flooding has led to road closures including the usually busy Vardnell Street, likely meaning long delays for those who have to venture out this morning.
In the far south of the city drains could be seen bubbling helplessly in the middle of subsumed roads in Croydon.
Flooding in the Imperial Wharf has led to the London Overground being suspended between Kensington (Olympia) and Clapham Junction.
Signal failure caused by flooding has led to delays on the Metropolitan, District, Piccadilly and Circle lines.
The Met Office tweeted at 5.18am this morning: “Torrential rain continues to move east this morning, with localised flooding possible.
“St James’s Park in London has recorded 26mm (just over an inch) of rain in the past hour.”
The national forecaster has a yellow weather warning in place running from 2am this morning to 12pm tonight, with the worst affected areas predicted to be the East and North East, as opposed to London and the South East.
The worst of the weather should have blown east into the North Sea by the mid-morning.
South Eastern and Thameslink trains have also reported delays.
On the roads, the A3 is closed southbound at Roehampton Lane, the A243 is partially shut and the A12 is closed northbound from the Green Man roundabout.
M23 is closed southbound at J10a due to the weather. with traffic being taken off the motorway.
Large stretches of the M25 have been reduced to single carriageways.
New research suggests that London is particularly susceptible to flooding, and will likely become even more so as the effects of climate change worsen.
Research by the Climate Coalition found that 34% of Londoners said their home has previously flooded compared to a 16 per cent UK average.
Thirty-nine per cent said their home is on a flood plain as opposed to a 19% UK average.