Londoners are being urged to take precautions as a yellow heat-health alert comes into force across the capital this weekend, ahead of a forecasted four-day heatwave next week.
The UK Health Security Agency (UKHSA), in partnership with the Met Office, has issued the alert, which took effect at 9:00 am on Friday and will remain in place until 9:00 am on Sunday. The warning covers London alongside the East Midlands, East of England, South East, South West, and West Midlands.
Minor impacts expected on health services
The UKHSA’s alerting system is designed to provide an early warning when adverse temperatures are likely to impact the health and wellbeing of the population. During this period, minor impacts are expected across health and social care services.
According to the UKHSA, these impacts include an increased use of healthcare services by vulnerable people and a greater risk to life for those individuals. There is also an increased potential for indoor environments to become very warm, which can exacerbate health issues for those unable to cool their homes effectively.
The agency has also warned that water-related incidents may increase, including risks from cold-water shock and drowning, as people seek ways to cool off. This is particularly relevant as millions of motorists hit UK roads for the summer getaway, potentially heading to coastal areas or inland waterways.
Weekend temperatures to reach high 20s
Over the weekend, temperatures in London are expected to reach the mid to high 20s, with a possibility of hitting 30°C. This immediate heat is a precursor to a more intense period of hot weather forecasted for the following week.
A four-day heatwave is predicted to begin on Tuesday, 28 July, and last until Friday, 31 July. During this time, temperatures are expected to hover between 29°C and 32°C, with the peak of 32°C anticipated on Wednesday.
The current alert and upcoming heatwave follow a summer of record-breaking temperatures, which has led to parts of the UK declaring drought status and hosepipe bans being implemented for millions of customers.
Advice for vulnerable individuals
With the yellow heat-health alert in place, it is crucial for Londoners to check on vulnerable family members, friends, and neighbours. The elderly, young children, and those with underlying health conditions are particularly at risk during periods of high temperatures.
Practical steps to stay safe include:
- Keeping out of the sun during the hottest part of the day, typically between 11:00 am and 3:00 pm.
- Staying hydrated by drinking plenty of fluids and avoiding excess alcohol.
- Keeping indoor spaces cool by closing curtains on rooms that face the sun.
- Never leaving anyone, especially infants, young children, or animals, in a closed, parked vehicle.
As the capital prepares for the impending 32°C heatwave, residents are advised to stay informed about the latest weather forecasts and health advice. The UKHSA’s ongoing monitoring will provide updates if the situation changes or if the alert level needs to be escalated.
By taking sensible precautions and looking out for one another, Londoners can help mitigate the risks associated with the extreme heat and ensure that health and social care services are not overwhelmed during this challenging period.
