The United Kingdom experienced its warmest June day on record Tuesday, with temperatures reaching 37.2°C (99°F) in Writtle, Essex. This surpasses the previous June high of 35.6°C set in 1976. The heatwave is impacting travel, with concerns raised about railway lines buckling and potential disruptions to air travel. Health officials have issued warnings urging the public to take precautions against heat exhaustion and dehydration, particularly vulnerable groups like the elderly and young children. The Met Office has issued amber alerts for extreme heat across much of England and Wales, forecasting continued high temperatures into Wednesday. This event is prompting discussions about the UK’s preparedness for increasingly frequent and intense heatwaves linked to climate change. Authorities are advising people to stay indoors during peak hours, drink plenty of water, and check on neighbours.