Research by climate change scientists has suggested that the chances of London flooding are higher than forecast.
The population of London and the South-East is set to grow 23% by 2035 putting a huge strain on water supplies during a drought.
Drivers are advised to avoid the roads in snowy weather, but here is some advice from the AA on journeys that are unavoidable.
The Environment Agency has reduced the number of flood warnings for the South East from ten to six. There is one in place in Berkshire, one in Wiltshire and four for the East and West Sussex area. In addition, there are 91 flood alerts in place across the region.
The Environment Agency has 10 flood warnings in place for the South East covering Berkshire, Hampshire and East Sussex. This means flooding is expected and residents should take action. There are also 97 flood alerts in place across the region.
The flood alerts were for the River Pinn and Woodridings Stream at Pinner, Eastcote, Ruislip, Ickenham, Uxbridge and Yiewsley, the Middle River Roding including Abridge, Loughton and Buckhurst Hill and the River Crane at Hillingdon, Southall, Cranford, Feltham and Twickenham.
Five more serious flood warnings were issued for the South-East - three in Hampshire and others in and East and West Sussex.
The South West was worse hit, with six villages in Cornwall flooded, trains cancelled between Bournemouth and Brockenhurst in Hampshire when the River Lymington burst its banks and fire crews called to a property in Devon.
London and the Home Counties were on flood alert today as homeowners were warned their homes were at risk from rising water levels.
The Environment Agency issued 45 flood alerts for the South-East after very heavy overnight rain caused rivers to threaten to burst their banks as downpours were forecast for the rest of the day.
Three flood alerts - meaning flooding is possible and homeowners are put on alert - were issued for the London suburbs.
Service suspended on Central Line between Bethnal Green and Leytonstone and severe delays on the rest of the line due to a burst water main causing flooding at Stratford.
Tickets being accepted on local buses, Greater Anglia and First Great Western services.
Replacement buses are running between Leytonstone and Stratford; and between Leytonstone and Mile End.
Disruption is expected to be ongoing into late morning.
Flood alerts have been raised for long stretches of the River Thames and its tributaries.
In total, the Environment Agency has 25 warnings in place in the south-east.
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The capital and surrounding area is facing fresh flood fears after heavy rain lashed southern Britain overnight following the wettest April since records began. More downpours are expected today and we're being warned there could be some dangerous driving conditions.