"This could lead to localised flooding and disruption to travel, particularly in urban areas.

"Environment Agency teams are out on the ground and will support local authorities in responding to surface water flooding.

"We urge people not to drive though flood water - it is often deeper than it looks and just 30cm of flowing water is enough to float your car and cause an accident."

London

It will be bright and generally dry with sunny intervals and the small chance of a thundery shower. Possible hail and thunder through the evening. Hot and humid with just a light southerly wind. Max temp 26-29C (79-84F).

Edinburgh

It is expected to be rather cloudy with a few spots of rain, especially during the morning. Some bright or sunny spells are likely this afternoon. Gentle westerly winds. Max temp 17-20C (63-68F).

Birmingham

It is going to be bright with sunshine and scattered thundery showers, especially during the afternoon. Very warm and humid with a light and variable wind. Max temp 24-27C (75-81F).