Information on update: Part of western and northwestern Scotland has been removed, where a separate warning for rain has been issued. Scattered heavy showers and thunderstorms are expected on Monday. Rainfall amounts will vary from place to place but 20-30 mm is likely within an hour in a few places, with a small chance of 40-50 mm in one or two locations; this most likely across southern Scotland and northern England. Lightning strikes are also likely along with the potential for hail and gusty winds. Showers and thunderstorms will slowly ease during Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings