Overview

• The Met Office has issued a heatwave warning as high pressure builds, forecasting peak temperatures of around 33 °C on Sunday across London, the east of England and other regions before easing early next week.
• The UK Health Security Agency has activated a yellow heat-health alert from June 18 to 22 in seven English regions, cautioning of increased demand on health and social care services for older adults and those with pre-existing conditions.
• UKHSA guidance urges people to stay hydrated, keep indoor spaces cool, check medicine storage, and look out for vulnerable neighbours to reduce risks of dehydration and heat-related illness.
• The London Fire Brigade has cautioned that extended hot, dry weather significantly elevates grassfire and wildfire risks, urging landowners to create fire breaks and minimise open flames.
• Met Office scientists warn there is a 50% chance of 40 °C or higher temperatures returning within the next 12 years, highlighting the need for long-term heatwave preparedness.