The Met Office has warned of water supply issues as the UK prepares for a scorching heatwave with temperatures forecast to reach 38C. The weather agency extended its extreme heat warning until Thursday after new forecasts indicated the heatwave will peak midweek, rather than Tuesday as previously thought.
Earlier predictions suggested a maximum of 34C on Tuesday, but updated models show the south of England will sizzle at 38C on Wednesday and Thursday. This could break the June temperature record of 35.6C, set in 1976 in Southampton and 1957 in Camden Square.
Health and Infrastructure Impacts
Met Office deputy chief forecaster Tom Crabtree said: "The forecast heatwave is developing into an impactful severe weather event, with record breaking June temperatures and very high humidity. The combination of heat and humidity will be oppressive and bring impacts across society from public health and infrastructure, to power and water supplies."
The UK Health Security Agency has issued Yellow and Amber Heat Health Alerts, warning of potential health and social care impacts. Overnight temperatures are expected to remain unusually high, with some urban areas staying above 20C, leading to so-called tropical nights that offer little relief.
Water Supply Concerns
South East Water is already under investigation by Ofwat over water supply failures during warm weather in May. The company attributed the issues to "exceptionally high demand, following the period of hot weather," which affected 22,000 properties at their peak.
The Met Office also warned that transport could be disrupted. High humidity will exacerbate the heat stress risk, making the heatwave particularly dangerous for vulnerable individuals.
Regional Variations
Northwest England may escape the worst of the heat, with the Met Office predicting "more near-average temperatures" through the weekend and a return to unsettled weather by Monday.
