The Met Office has issued an amber extreme heat warning for much of southern England and south-east Wales, the most extreme such warning in four years. Temperatures are expected to reach around 30C over the weekend, peaking at 34C on Monday and Tuesday, with a chance of being exceeded in some spots.
The warning, introduced in July 2021 and last issued in August 2022, differs from amber heat health alerts from the UK Health Security Agency (UKHSA). The UKHSA separately issued an amber health alert on Thursday, warning that high temperatures could significantly affect health, particularly among those aged 65 or over or with health conditions, and may lead to a rise in deaths and water-related incidents.
Ross MacLeod, water safety manager for the Royal National Lifeboat Institution, warned of cold water shock, advising people to enter water slowly and to 'float to live' if in danger. He urged against entering the water to rescue others, instead contacting emergency services and throwing buoyant objects. At least 15 people died during a hot spell in May.
Greg Wolverson, a deputy chief forecaster at the Met Office, said heatwave criteria will be met in the south and south-east, with temperatures into the low 30s possible, expanding and intensifying early next week. Tropical nights, where temperatures stay above 20C, are also likely. Some thundery downpours may occur but are expected to be isolated.
The climate crisis is increasing the likelihood of extreme heat, with the UN climate chief describing May's heatwaves as a 'brutal reminder' of its impacts. Car breakdown services warned of an 'early summer surge' in breakdowns due to overheating engines and tyre blowouts. The RAC expects a 10% rise in demand, while the AA advised avoiding travel during the hottest part of the day and carrying water for people and pets.
