Amber warning of extreme heat affecting East of England: Bedford, Cambridgeshire, Central Bedfordshire, Essex, Hertfordshire, Luton, Norfolk, Peterborough, Suffolk, Thurrock valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug

Amber warning of extreme heat affecting East Midlands: Derby, Derbyshire, Leicester, Leicestershire, Lincolnshire, Northamptonshire, Nottingham, Nottinghamshire, Rutland valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug

Amber warning of extreme heat affecting London & South East England: Bracknell Forest, Buckinghamshire, Greater London, Milton Keynes, Oxfordshire, Reading, Slough, Surrey, West Berkshire, Windsor and Maidenhead, Wokingham valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug

Amber warning of extreme heat affecting West Midlands: Staffordshire, Stoke-on-Trent, Warwickshire, West Midlands Conurbation, Worcestershire valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug

Amber warning of extreme heat affecting Yorkshire & Humber: North Lincolnshire, South Yorkshire valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug