A red alert for extreme heat has been issued for parts of England and Wales, with temperatures predicted to soar above 40°C in some areas – a level not seen since records began. The Met Office's unprecedented warning covers Monday and Tuesday, with the affected regions stretching from central and eastern England to south-eastern England and parts of eastern Wales.
The extreme heat will come on the back of an amber alert for a wider area of England and Wales from Sunday, already indicating potential significant disruption and health impacts. The Met Office warns that this heatwave could break the UK's all-time temperature record of 38.7°C, set in Cambridge in 2019.
While not under red warning, other parts of the UK will experience warm weather, with temperatures reaching the high 20s Celsius in some regions. However, the lack of wind is unlikely to bring much relief from the heat, with gentle breezes expected to remain below 10-15 mph.
The health implications are dire, with an increase in heat-related illnesses, including heatstroke and dehydration, anticipated across the affected areas. Infrastructure will also be under strain, with railways and roads potentially facing significant disruption due to buckling tracks and melting tarmac. An elevated risk of wildfires exists, especially in dry regions.
The public is urged to take proactive measures to stay safe, including staying indoors during peak heat hours, drinking plenty of water, and checking on vulnerable neighbours. Advice includes wearing loose, light-coloured clothing, avoiding alcohol, and keeping curtains closed in sun-facing rooms. Drivers are advised to carry water and ensure vehicles are well-ventilated.
The Met Office will continue to update its guidance as the situation develops, with employers encouraged to consider their staff's working conditions – particularly those exposed to outdoor or non-air-conditioned environments.