The Met Office has issued an Amber weather warning for heavy rain today between 3pm and 11pm.
To prepare and prevent potential flooding, Bexley Council are checking and clearing all the watercourse culverts in the area. They have also arranged for three tankers to be on standby to deal with any localised flooding of roads. Extra staff will also be on duty in case they are needed.
If you are out on the roads, you are urged to drive carefully in the rain.
There are four straight days of weather warnings in place starting on Monday, and some places in Britain will be battered by 20 straight hours of rainfall.
On Sunday night, the Met Office had issued a yellow weather warning, but on Monday morning it was upgraded to amber. The warning is in place from 3pm on Monday to 11pm.
It warned residents in the capital and in Sussex, Kent, Berkshire, Buckinghamshire and Essex to expect potential flooding and damage to buildings.
Stay listening to Maritime Radio on 96.5FM and online, for regular updates.