The Met Office has issued an unprecedented red weather warning for extreme heat covering large parts of England on Wednesday and Thursday, with temperatures forecast to reach 40°C (104°F) for the first time. The warning, the highest level, indicates a danger to life and likely severe disruption.
Warning Details and Affected Areas
The red warning applies from Monday 00:00 BST to Thursday 23:59 BST, covering London, the South East, East of England, and parts of the Midlands. The Met Office warned of widespread impacts on transport, infrastructure, and health services.
Chief Meteorologist Paul Gundersen said: "This is the first time we have issued a red warning for extreme heat. Temperatures are expected to reach 40°C in some places, which is unprecedented for the UK."
Health and Safety Risks
The UK Health Security Agency has issued a Level 4 heat-health alert, indicating a national emergency. People are urged to stay indoors, keep hydrated, and check on vulnerable relatives. The warning highlights a risk of serious illness or danger to life, not just for vulnerable groups but for healthy people as well.
NHS England has activated emergency measures, including cancelling non-urgent appointments and increasing ambulance capacity. A spokesperson stated: "We are taking this extremely seriously and have robust plans in place to protect patients and staff."
Transport and Infrastructure Disruptions Expected
Network Rail has warned of speed restrictions and potential delays across the network. Train operators are advising passengers not to travel unless absolutely necessary. London Underground services may also be affected, with some lines likely to run reduced services.
Highways England has issued an amber alert for the road network, warning of potential road surface damage and vehicle breakdowns. Drivers are advised to carry water and check their vehicles before setting out.
Previous Record and Climate Context
The current UK record high is 38.7°C, set in Cambridge in 2019. The Met Office believes there is a 50% chance of temperatures exceeding 40°C for the first time. Climate scientists attribute the extreme heat to climate change, with Professor Peter Stott of the Met Office Hadley Centre stating: "Human-induced climate change is making heatwaves more frequent and intense."
The warning comes as much of Europe also faces extreme temperatures, with France, Spain, and Portugal experiencing wildfires and record highs.
