NewsUK NewsMet OfficeThe Met Office has issued amber weather warnings for extreme heat across 71 areas of the UK from Monday, stressing the sweltering conditions could lead to power cuts and a risk to our health20:45, 20 Jun 2026The Met Office has issued amber weather warnings for extreme heat on Monday across 71 areas nationwide - and has cautioned that the scorching conditions could trigger power cuts.The forecaster warned that the blistering temperatures could cause "heat-sensitive systems and equipment" to fail, leading to "power cuts and the loss of other services to homes and businesses".The weather warnings will take effect at 1am on Monday (June 22) and will remain until 11.59pm on Tuesday (June 23). The Met Office has cautioned that a "developing hot spell through Monday and Tuesday will likely lead to widespread impacts on people and infrastructure".Forecasters have also raised their temperature predictions, with highs of 35C anticipated on Tuesday and Wednesday and increasing confidence that the UK's June temperature record of 35.6C, established in Southampton in 1976, could be surpassed. The Express reports the mercury already hit 31.2C in Writtle, Essex, on Friday.Should a power cut occur, the Met Office provides the following guidance;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 (see below) for assistance during any power outageMake sure you have multiple torches along with extra batteriesMake sure you keep your mobile phone charged so you can make calls in case of an emergencyKeep fridges and freezers closed, with a blanket over as they will stay cold for many hoursKeep important documents safe and handyLook out for elderly neighbours and ensure they are prepared for a possible power cutSwitch 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 thereFor 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 advanceAreas affected by heat warningsEast MidlandsDerbyDerbyshireLeicesterLeicestershireLincolnshireNorthamptonshireNottingham NottinghamshireRutlandEast of EnglandBedfordCambridgeshireCentral BedfordshireEssexHertfordshireLutonNorfolkPeterboroughSouthend-on-SeaSuffolkThurrockLondon & South East EnglandBracknell ForestBrighton and HoveBuckinghamshireEast SussexGreater LondonHampshireIsle of WightKent MedwayMilton KeynesOxfordshirePortsmouthReadingSloughSouthamptonSurreyWest Berkshire West SussexWindsor and MaidenheadWokinghamSouth West EnglandBath and North East SomersetBournemouth Christchurch and PooleBristolDevonDorsetGloucestershireNorth SomersetSomersetSouth GloucestershireSwindonWiltshireWalesBlaenau GwentBridgendCaerphillyCardiffMerthyr TydfilMonmouthshireNeath Port TalbotNewport PowysRhondda Cynon TafTorfaenVale of GlamorganWest MidlandsHerefordshireShropshireStaffordshireStoke-on-TrentTelford and WrekinWarwickshireArticle continues belowWest Midlands ConurbationWorcestershireChoose Daily Mirror as a 'Preferred Source' on Google News for quick access to the news you value.Met OfficeWeatherWeather warning
Met Office issues 47-hour amber heat warning for 71 areas of UK from Monday
The Met Office has issued amber weather warnings for extreme heat across 71 areas of the UK from Monday, stressing the sweltering conditions could lead to power cuts and a risk to our health
TL;DRAI
Met Office issues amber heat warning across 71 UK areas (June 22-23) with temperatures to 35°C; power cuts and infrastructure failures expected. Data centers face cooling stress—CTO teams must verify failover plans and remote systems resilience.
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