The Met Office has issued a rare red weather warning for extreme heat covering central and southern England and Wales, effective from 9am Wednesday to 9pm Thursday. Temperatures could soar above 38°C, potentially breaking the June record of 35.6°C set in Southampton in 1976.
What a Red Warning Means
A Met Office Red Weather Warning for Extreme Heat is the highest alert level in the UK. It signals a severe, potentially historic heatwave that poses a widespread threat to health, daily life, and infrastructure. The core message is "Take Action." Unlike lower-level alerts, a Red Warning means even fit, healthy people are at risk of severe heat-related illnesses such as heatstroke. There is an increased risk of serious injury, ill health, and even death, according to the Met Office.
Health and Infrastructure Impacts
The UK Health Security Agency (UKHSA) warned of significant impacts across health and social care services, along with a rise in deaths, particularly among those aged 65 and over or with health conditions. The extreme heat could also disrupt rail, road, and air travel, with the possibility of tarmac melting and rail tracks buckling. Overnight temperatures may remain above 20°C, known as tropical nights, preventing the body from cooling down.
Safety Advice
The Met Office advises: drink plenty of fluids, keep out of the sun, avoid exercise between 11am and 3pm, and close curtains in sun-facing rooms. If going out, take water, stay in the shade, wear sunscreen and a wide-brimmed hat. Avoid alcohol, caffeine, and sugary drinks. Know the signs of heat exhaustion: heavy sweating, dizziness, rapid pulse, headache, and nausea. If symptoms worsen or consciousness is lost, call 999 immediately.
Travel and Water Safety
Avoid non-essential travel. If driving, ensure the car has water, coolant, and a charged phone. Expect severe delays on trains and roads. Near water, be wary of cold-water shock; enter slowly and remember "Float to Live" if in trouble.
