St Mary's Hospital and Kone

NHS Hampshire and Isle of Wight declares critical incident amid red heat health alert

A Critical Incident has been declared by NHS Hampshire and Isle of Wight as health services deal with extra pressure and demand due to the red heat health alert. 

Health leaders across Hampshire and Isle of Wight are urging residents to take extra precautions as the extreme hot weather is impacting health and care services. 

Portsmouth Hospitals University NHS TrustUniversity Hospitals Southampton NHS Trust and South Central Ambulance Service have all declared Critical Incidents, with other partners across the system also facing significant pressure. 

Partners are managing a range of challenges linked to the extreme temperatures, including impacts on buildings, infrastructure, equipment and services. 

Ambulance services under strain as call volumes surge
Both South Central Ambulance Service and the Isle of Wight Ambulance Service are dealing with increased call volumes and are asking people to consider alternative options for less serious conditions. Please only call 999 for serious or life-threatening emergencies. If you are expecting an ambulance, please only call back if the patient’s condition has changed since your initial call.  

It comes as the UK Health Security Agency issued a red heat-health alert due to the very high temperatures expected this week. This is alongside the Met Office Red Alert for extreme heat, which is currently in place for today (Thursday) and Friday. 

What the red heat-health alert means for you
A red heat-health alert indicates that a severe heatwave could have impacts beyond health and social care, with potential effects on transport systems, food and water supplies, energy networks and businesses. It also indicates a risk to life, including among people who are normally healthy. 

Dr Charlotte Hutchings, GP and Deputy Chief Medical Officer for NHS Hampshire and Isle of Wight, said,

“During periods of extreme heat, we can see an increase in people becoming unwell due to dehydration and overheating.  

“This can happen quickly, particularly for older people, young children, people with long-term conditions and those taking certain medicines. 

“Planning ahead is important – keep fluids nearby, try to stay cool, avoid being outside during the hottest parts of the day where possible, and check in on anyone who may need extra help. 

“If you are worried about your health or someone else’s health during the hot weather, please seek advice. NHS services are available to support you, and choosing the right service helps make sure people receive the care they need.” 

How to stay safe in the heat
During periods of extreme heat, people are encouraged to: 

  • Stay hydrated – drink plenty of fluids regularly and avoid waiting until you feel thirsty. 
  • Keep cool – stay indoors or in shaded areas where possible, particularly during the hottest parts of the day. 
  • Protect yourself from the sun – wear loose, light-coloured clothing, use sunscreen, wear a hat and take breaks from direct sunlight. 
  • Plan ahead – avoid unnecessary travel or strenuous activity during the hottest times of the day. 
  • Check on others – particularly older people, babies and young children, people with long-term health conditions, and those who may need additional support. 
  • Keep medicines stored safely – some medicines can be affected by heat; speak to your pharmacist or healthcare professional if you are unsure.  

People should attend planned appointments as usual unless they have been contacted directly and advised otherwise. 

Families and carers are also being asked to support hospital services by collecting loved ones from hospital when they are medically ready to leave, helping ensure beds remain available for people who need urgent care during this period of increased pressure. 

Which NHS service should you use?
Your NHS remains open and able to help, please choose the option most appropriate for your needs: 

  • Contact your GP practice for ongoing health concerns or advice about existing conditions. 
  • Speak to your local pharmacist for advice on minor illnesses, medicines and staying well in hot weather. 
  • Visit NHS 111 online or call 111 for urgent health advice. 
  • Urgent Treatment Centres (UTCs) across the region will also be open to support people with urgent but non-life-threatening illnesses and injuries. UTCs can often offer shorter waiting times than Emergency Departments and are in Andover, Gosport, Lymington, Petersfield, Portsmouth, Southampton and on the Isle of Wight. 
  • Call 999 in a life-threatening emergency. 

Dr Hutchings added,

“We would also like to thank the public for their continued understanding, patience and support during this period of extreme heat. By taking precautions, choosing the most appropriate NHS service for your needs, and looking out for those who may be more vulnerable, you are helping to reduce pressure on health and care services. 

“We would like to extend our sincere thanks to all NHS staff, ambulance crews, healthcare teams and partners across Hampshire and the Isle of Wight who are working tirelessly in challenging conditions to keep people safe and provide care. Their dedication, professionalism and commitment during this period are greatly appreciated.” 


News shared on behalf of Isle of Wight Integrated Care Board. Ed