Heavy rain is causing travel problems and flash flooding across England.
Twelve flood warnings and 39 flood alerts have been put in place by the Environment Agency.
The Met Office has a yellow rain warning covering most of the country in force until 23:00 BST.
Floods have been reported on roads in Southampton, Birmingham and Liverpool, while Transport for London (TfL) said a number of roads across the capital were also affected by flooding.
Wales has also been affected by the heavy rainfall, with the Met Office issuing warnings across south and north eastern areas of the country.
Flood alerts are in place and a landslip has blocked a road in Neath Port Talbot. South Wales Police said conditions on south Wales’ roads were “really poor”.
A flood warning is in place in Crawley, West Sussex, for the Ifield Brook and River Mole at Ifield and the River Mole at Lowfield Heath.
Flooding is also expected on the upper Frome, between Maiden Newton and Dorchester, in Dorset and on the Grace Dieu Brook, between Whitwick and Thringstone, in Leicestershire.
Edwinstone and Ollerton in Nottinghamshire are also at risk of flooding from the River Maun, as are areas around the Whinney Brook at Maghull in Sefton, Merseyside, and Wash Dike in Pontefract, West Yorkshire.
Warnings are also in place for the River Tame at Hams Hall, Water Orton, Whitacre and Nether Whitacre in Warwickshire, and the Blackburn and Charlton Brooks, between Chapeltown and North Ecclesfield, near Sheffield.
National Rail warned of major disruption between Birmingham Snow Hill and Stourbridge earlier due to a tree blocking the line.
Southampton City Centre has seen problems with several cars having broken down in water on Millbrook Road West.
Motorists have also been advised to avoid the road between Waterhouse Lane and Paynes Road.
Roads have flooded in the Longbridge area of Birmingham, while Mersey Fire and Rescue Service reported vehicles trapped in floodwater in the Queens Drive and West Derby areas of Liverpool.
A service spokesman urged drivers to “please take extra care”, adding: “Slow down, increase your distances, switch your lights on and please don’t drive into floodwater.”
About 2in (49.6mm) of rain fell in the six hours before 09:00 at Boscombe Down in Wiltshire, according to the Met Office.
Spokesman Grahame Madge said it was a “significant” amount of rain.
He said the band of rain was “transient” and, having started in the South West, has moved to the Midlands before hitting the North later in the day.
He said some other areas could expect to see the same amount of rain as Boscombe Down.
In Harrogate, the fan zone for the UCI Road World Championships has been closed due to the “heavy rain”.
The cycling action can still be seen on West Park and Parliament Street, organisers said.