Residents and motorists can expect a further 24 hours of flooding misery after experts predicted another night of heavy rainfall.
Homes were flooded and roads underwater as downpours caused widespread disruption across Britain.
Vehicles were abandoned and there were reports of entire villages being cut off as floodwater surged through lanes and streets and into homes.
The south west of England bore the brunt of the weather, with two inches of rain falling during 12 hours on Tuesday night. The Environment Agency told communities in the West Country to brace themselves for further problems.
It is possible that up to 60mm (5in) of rain will fall on already saturated ground, leading to river flooding during the next 24 hours. Strong winds could yet worsen conditions, particularly surface water flooding, as leaves and debris block drains and channels.
Environment Agency teams are on the ground across the country clearing watercourses of debris and monitoring river levels, and will be out in force over the coming days.
Pete Fox, the Environment Agency's head of flood risk strategy, said: "There is already significant travel disruption due to the wet weather and we would urge people to remain vigilant as further flooding is possible across the South West tomorrow.
There were major problems on the roads, with the AA being called to hundreds of weather-related breakdowns.
Darron Burness, the AA's head of special operations, said: "It's been very bad today in the Midlands and South West, with the weather causing extremely challenging driving conditions.
"Unfortunately, the forecast for tomorrow is even worse, with heavy rain forecast across a wider area - particularly the South West, South Wales and Scotland - so drivers need to plan accordingly and keep tuned to local traffic and weather reports."