Millions of Britons have been issued with the warnings.
17:25, Wed, Jun 24, 2026 Updated: 17:35, Wed, Jun 24, 2026

Power cuts can be caused by extreme heat (Image: Getty)
The Met Office has warned of potential power cuts in several parts of the UK as the blistering heatwave continues this week. An amber warning for extreme heat is in place for London & the South East, East Midlands, East of England, North West England, South West England, West Midlands, and Yorkshire & Humbur from 12am until 11.59pm on Friday, bringing hot and humid conditions both day and night.
The national weather forecaster has warned the sweltering conditions could cause "heat-sensitive systems and equipment" to break down, resulting in "power cuts and the loss of other services to homes and businesses". It added: "Population-wide adverse health effects are likely to be experienced, not limited to those most vulnerable to extreme heat, leading to potential serious illness or danger to life."
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Amber extreme heat warnings are in place for large parts of England (Image: REACH PLC)
In the event of a power cut, the Met Office offers the following advice:
- If electricity is crucial for any medical equipment you have, please contact your DNO at any time as they may be able to put you on their Priority Register or assistance during any power outage
- Make sure you have multiple torches along with extra batteries
- Make sure you keep your mobile phone charged so you can make calls in case of an emergency
- Keep fridges and freezers closed, with a blanket over as they will stay cold for many hours
- Keep important documents safe and handy
- Look out for elderly neighbours and ensure they are prepared for a possible power cut
- Switch off appliances - turn off items such as irons, ovens, electric fires and fryers as they could pose a hazard if the power comes back on when you are not there
- For people using a digital landline who don't have a mobile phone, or who live in an area with poor/no mobile signal, speak to your communications provider about additional support they can offer you in advance

Temperatures have soared this week (Image: Getty)
Areas under the heat warning
East Midlands
- Derby
- Derbyshire
- Leicester
- Leicestershire
- Lincolnshire
- Northamptonshire
- Nottingham
- Nottinghamshire
- Rutland
East of England
- Bedford
- Cambridgeshire
- Central Bedfordshire
- Essex
- Hertfordshire
- Luton
- Norfolk
- Peterborough
- Southend-on-Sea
- Suffolk
- Thurrock
London & South East England
- Bracknell Forest
- Brighton and Hove
- Buckinghamshire
- East Sussex
- Greater London
- Hampshire
- Kent
- Medway
- Milton Keynes
- Oxfordshire
- Reading
- Slough
- Surrey
- West Berkshire
- West Sussex
- Windsor and Maidenhead
- Wokingham
North West England
- Cheshire East
- Cheshire West and Chester
- Greater Manchester
- Halton
- Merseyside
- Warrington
South West England
- Gloucestershire
West Midlands
- Shropshire
- Staffordshire
- Stoke-on-Trent
- Telford and Wrekin
- Warwickshire
- West Midlands Conurbation
- Worcestershire
Yorkshire & Humber
- North East Lincolnshire
- North Lincolnshire
- South Yorkshire

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