- By Christian Fuller
- BBC News, South East
People and businesses across south-east England are bracing for continued heavy rainfall following Storm Henk.
The Environment Agency has issued six flood warnings for East and West Sussex, while dozens of flood warnings remain in place across Kent and Surrey.
The Met Office has issued a yellow rain warning for the area between 12:00 GMT on Thursday and 03:00 on Friday.
Officials warned the rain could lead to further flooding and traffic disruption.
Some communities may be isolated due to flooded roads, homes and businesses may be without power, flooding and train and bus services may be delayed, the Met Office said.
No rail services can run on the line between Brighton and Lewes due to flooding on the tracks.
“Trains will be cancelled, delayed or diverted via Wivelsfield,” a Southern spokesman said, urging passengers to allow at least 30 minutes extra to complete their journeys.
In Patcham, the water table has risen by 2 meters in the last 24 hours.
Local resident and trained roads and drainage engineer, David Harris, said: “If this rate continues to increase, groundwater is likely to start filling the cellars tomorrow night.
“The most dangerous thing is that the groundwater is now contaminated with raw sewage, posing a serious health risk.”
Alistair McNair, Brighton and Hove councilor for Patcham and Hollingbury, said the possibility of flooding was “very worrying”.
He told BBC Radio Sussex: “The most important thing is to check the pumps. People and businesses have pumps in their cellars, so make sure they are working properly.”
At Barcombe Mills, where the River Ouse is expected to rise on Thursday, Ben Foflach said the weather was affecting his business, Hack Engineering.
“We work on a lot of prestigious cars that are worth a lot of money, so having to guide customers down a muddy road five feet under water is quite difficult,” he said. “
In Chertsey, Surrey, water has flooded the banks of the River Thames and a flood warning is in place.
The Met Office said a spell of rain is expected to move across parts of southern England, with up to 40mm of rain falling in some areas.
A spokesman said: “Strong winds are also likely to accompany this heavy rainfall across southern and particularly south-east England this evening and overnight.”
Chris Wilding, flood duty manager at the Environment Agency, said: “We urge people to stay safe on the coast and remember to take extra care on coastal roads and footpaths.
“Low-lying coastal roads may also be flooded and people should avoid driving through flood water, as just 30cm of water is enough to move your car.”