Week-Long Heat Alerts Issued as 34C Peak Forecast
Yellow heat-health alerts covering six English regions came into force at midday and run until next Saturday evening, with the Met Office forecasting 29C tomorrow, the low 30s through the week and a peak near 34C in the South East on Thursday or Friday. The UK Health Security Agency warns of greater risk to life for vulnerable people and of “an increase in water-related incidents due to a raised risk of cold water shock and drowning”. Unlike June’s record spell, the heat will be drier — but longer.
The escalation is in the duration, not the colour: the alerts stayed yellow rather than amber, but an eight-day window is a different kind of test for the NHS and care sector than June’s short, humid spike that set a provisional UK June record of 37.7C. The water infrastructure is already responding — Southern Water’s hosepipe ban for a million customers starts Friday, with the River Test down a third in a month — and heat deaths typically peak two to three days into a spell, putting midweek in focus. Watch for amber escalation around the Thursday-Friday peak, and reservoir announcements from other water companies.