Exceptional heat and high humidity causing widespread disruption and a risk to life.
An intense, record-threatening heatwave is set to peak across central and southern England and Wales on Wednesday and Thursday, with temperatures reaching at least 39°C and a chance of touching 40°C in the hottest spots. Unlike previous heatwaves, this one comes with high humidity and very warm nights that will make it hard for people to recover. It is advised to stay out of the sun during the hottest part of the day (11am–3pm), drink plenty of water, and keep your home cool by closing curtains and blinds on sun-facing windows. Check on elderly relatives, neighbours and anyone with a health condition, and never leave children or pets in a parked car. Plan around possible travel disruption, take care near rivers, lakes and the sea, and learn the signs of heat exhaustion and heatstroke. Stay updated on weather warnings as they may change quickly.