Yellow warning of thunderstorm affecting London & South East England

Yellow warning of thunderstorm affecting London & South East England: Bracknell Forest, Brighton and Hove, Buckinghamshire, East Sussex, Greater London, Hampshire, Kent, Medway, Milton Keynes, Oxfordshire, Portsmouth, Reading, Slough, Southampton, Surrey, West Berkshire, West Sussex, Windsor and Maidenhead, Wokingham valid from 1100 Tue 21 May to 2259 Tue 21 May

Source: metoffice.gov.uk