The Met Office has issued a warning for thunderstorms across the region on Saturday 21 September.
The warning is in place until midnight tonight.
The warning states:
Whilst there is some uncertainty in the details, scattered showers and thunderstorms will develop across parts of southern England and spread northwestwards through Saturday morning before showers develop more widely later in the day.
While much of the time it will be dry, with not all places seeing showers or storms, where they do occur 20-40 mm could fall in less than an hour, with a small chance of isolated accumulations of 50-80 mm over the course of a few hours.
In addition, hail and frequent lightning may accompany the most intense storms, especially during Saturday afternoon and evening in parts of the Midlands, western England and east Wales.
