Heat health alert updated for the South East

The yellow heat health alert is in effect from4PM on 28/05/2026 until 8PM on 30/05/2026 across the South East. The yellow alert has a matrix score of 8. This means:

Minor impacts are expected across health and social care services, including:

• increased use of healthcare services by vulnerable people
• greater risk to life of vulnerable people
• increased potential for indoor environments to become very warm
• water-related incidents may increase, including risks from cold-water shock and drowning

To see our page on protecting yourself from the risks of Extreme Summer Heat click here

Heat health alert updated for the South East

The amber heat health alert is in effect from 2PM on 22/05/2026 until 5PM on 27/05/2026 across the South East. The amber alert has a matrix score of 12. This means:

Significant impacts are likely across health and social care services due to the high temperatures, including:

water-related incidents may increase, including risks from cold-water shock and drowning

a rise in deaths, particularly among those aged 65 and over or with health conditions. There may also be impacts on younger age groups

likely increased demand on all health and social care services

internal temperatures in care settings (hospitals and care homes) may exceed the recommended threshold for clinical risk assessment

the heat affecting the ability of the workforce to deliver services

indoor environments overheating increasing the risk to vulnerable people living independently in community and care settings

issues managing medicines

staffing issues due to external factors (for example, affecting transport)

increased demand for power exceeding capacity

other sector starting to observe impacts (for example, travel delays)

There are currently no flood alerts or other expected risks to our community.

Whilst we have identified no community-wide risks, we advise residents to remain vigilant and mindful to protect themselves, their neighbours and our wider community. We should be aware of risks to individual households, such as scams, cybercrime and theft. Always stay aware, and use this opportunity to prepare ourselves for any potential problems.

Use the guidance on our website to protect yourselves.

Wraysbury Flood Team are meeting regularly and monitoring the river levels closely.
The Thames is currently flowing at around 100mm above normal which means we might see some flooding to river front gardens. No house flooding is expected at this time, however we will continue to monitor and update regularly.

We advise to keep a close eye on moorings, and adjust where necessary and when it’s safe to do so.

We appreciate that surface water from the rain, can be worrying, so, please keep a close eye on your own property however we don’t have access to data to advise on specific areas.

As always, stay safe, and feel free to reach out if you have any concerns

Household flooding is not expected, but we would advise anyone, especially those with poorer mobility or health issues, who live in a flood prone area, to be prepared. Make a plan – will you need to move your car, where can you park it safely? Do you have a good supply of medication and essential food, what about your pets etc.

Look at our flooding page for information and help.