The city of London police said that the floods caused “serious disruption” on the North Ring Road, one of the main roads around central London.
Many London Underground stations are heavily flooded, causing service interruptions.
A transport for London (TfL) spokesman said in an e-mail statement to CNN that “significant floods” have affected services in the transport network.
A TfL spokesperson said: “with multiple bus routes on the detour route and some metro and train services affected and stations closed, we highly recommend customers to check the latest information before travelling to make sure they have a safe and smooth journey.
Two hospitals in the London area, Newham University Hospital and Webbs Cross University Hospital, were hit by the rain.
A spokesman for Barts Health NHS Trust, told CNN in a statement that the two hospitals are operational difficulties due to torrential rains.
“We work closely with our local partners to solve problems and maintain patient care – and while services remain available to emergency people – patients are asked to go to alternative hospitals where possible to help us implement solutions as soon as possible .”
In the Worcester Park area, social media videos of Cars Getting Stuck in flood water and lifeboats operating in the area circulated.
The London Fire Brigade said in a tweet on Twitter it has received hundreds of calls about floods in London.
“We have now received more than 600 calls for flood incidents, including flooding of roads and property, reports of roof collapses and vehicles stuck in the water. Water crews used specialized water rescue equipment to rescue five people from a vehicle trapped in flood water at # WorcesterPark, ” the brigade said.
The storms that erupted over London and southern England on Sunday followed record heat on Friday, CNN meteorologist Jane Norman said.
“This warm air crashed into a low-pressure area near northern France. This caused slow-moving storms, caused floods and led the British with Office to issue an orange storm warning of 75 to 100 mm (3 to 4 inches) rain forecast. ” . “Half a dozen Flood Warnings remain in force runoff also causes rivers to rise. The heaviest rain should depart Monday morning.”
Norman said unofficial reports estimate that some locations in London on Sunday received 60-92 mm (2.3 to 3.6 inches) of rain in an hour.
“What is characteristic of this type of flood is that storms have often formed and moved over the same areas, in fact raining faster than they could dry up,” he said.