Information on update: Warning area has been extended into southeast Scotland whilst parts of East Midlands have been removed. The warning start time has been delayed slightly and end time an hour earlier. Whilst some showers and isolated thunderstorms are expected during Saturday afternoon, further and potentially intense thunderstorms are likely to develop during Saturday evening across northwest England and perhaps northeast Wales. Whilst there is still some uncertainty in when and where these develop, thunderstorms could produce a combination of frequent lightning, large hail, strong winds and heavy rain (in places, 30-40 mm in less than 2 hours) as they move northeast into northeast England and perhaps southeast Scotland overnight. Thunderstorms are expected to move offshore into the North Sea during the latter part of Saturday night. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings