A heatwave is expanding its reach across the UK, with Scotland and Northern Ireland now bracing for temperatures exceeding 30°C. Previously concentrated in England and Wales, the high-pressure system responsible for the unseasonably warm weather is shifting northward. Public health officials are advising residents to take precautions against heatstroke and dehydration, particularly vulnerable individuals such as the elderly and those with pre-existing health conditions. The Met Office has issued heat warnings, urging people to stay hydrated, seek shade during peak hours, and check on neighbors. The unusually high temperatures are expected to persist for several days.