The Met Office have released a yellow weather warning due to a forecast downpour on Thursday.
The warning is in place from 3am to 7pm on Thursday, as the band of heavy rain is expected to move north across southwestern parts of the UK .
Scattered heavy showers with the risk of some thundery downpours are likely to follow to similar areas during the afternoon.
The public should be aware of the risk of surface water flooding.
The chief forecaster at the Met Office saays that the return to wet weather is due to an active frontal zone expected to move north into southern England during the early hours of Thursday, continuing into parts of Wales and the Midlands during the day.
Adding: "This brings the threat of some heavy rain for a time with embedded convection within the frontal band. To the rear of the front scattered thundery showers are likely to develop bringing some localised downpours during the afternoon. Totals of more than 40 mm are likely in places.
"The areas most at risk of heavy rain remain open to some uncertainty and this warning will be updated on Wednesday."
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