Information on update: The warning area has been extended further south and west to cater for the potential of more widespread thunderstorms through Sunday. Thunderstorms are expected to occur during Sunday, initially in the west of the region but spreading east through the morning. These will bring heavy rain, lightning and some hail. Within the warning area, 15-25 mm of rain is expected quite widely, much of this falling within two or three hours at any given place. Where repeated thunderstorms occur, locally higher peaks of 40-60 mm are possible. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings