A severe weather warning for rain in West and East Sussex has been issued by the Met Office.
Later today (Wednesday May 21) heavy and locally thundery rain is expected to move northwards across the region and the Met office has warning the public should be aware of the risk of localised flooding over the next few days.
In the early hours of tomorrow (Thursday May 22) areas of heavy and locally thundery rain are expected to move north and west across the southern half of England along with Wales.
A brief period of drier weather reaching the extreme southeast around midnight Thursday will follow north-westwards, however, scattered locally heavy showers, with the risk of some slow-moving thundery downpours, are likely to develop quite quickly during Thursday, only slowly dying out in the evening.
The chief forecaster estimates more than 40mm of rain is likely in places through the day with a risk of 15mm falling in less than an hour.