Heavy rainfall has led to flash flooding across the capital. Many roads have already been flooded causing commuter chaos. On Wednesday, the Met office issued an Amber rain alert across London and warning that travel to work on Thursday might be disrupted.

       The Amber warning reads: “Some very heavy rain will occur during Wednesday evening and night, with 20-30 mm of rain possible in an hour and locally 60 mm in 2-3 hours.

       “This will lead to surface water flooding particularly if the heaviest rain occurs over larger towns and cities.”

       A second yellow warning encompassing the whole of the south, from Devon and Cornwall up to London and Kent has also been issued.

       The yellow warning reads: “An area of heavy rain reaching southwest England late Wednesday afternoon spreads eastwards across southern England, reaching the far southeast of England by mid-evening.

       “Rain will last for around six hours in any location, finally clearing southeast England during the early hours of Thursday.

       “Rain may be accompanied by coastal gales and, in a few places, thunder. 15 to 25 mm of rain is widely expected with 30 to 50 mm possible in a few places.”