Amber heat alert extended across Barnet until Wednesday morning

Barnet is set to experience another day of high temperatures on Tuesday, as an amber heat health alert remains in place across London. The UK Health Security Agency and the Met Office issued the alert, which warns of significant health risks due to prolonged heat. It is scheduled to end at 9 am on Wednesday, when temperatures are expected to drop to a maximum of 25 °C.

The Met Office forecasts that temperatures will reach 28 °C by midday on Tuesday. If the mercury meets or exceeds this threshold for three consecutive days, it will officially mark London’s fifth heatwave of the summer. On Monday, Northolt recorded a temperature of 30.7 °C at midday, while parts of London reached 28.6 °C on Sunday.

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Health risks and service pressures

The amber alert indicates that the heat is likely to have a significant impact on health and social care services. The UK Health Security Agency has warned that the high temperatures could lead to an increase in deaths, particularly among residents aged 65 and over or those with pre-existing health conditions. Barnet Council has not issued specific local guidance, but the alert advises residents to stay hydrated and avoid direct sunlight during peak hours.

London Ambulance Service told the *Evening Standard* that it expects a rise in callouts related to heat exhaustion and dehydration. A spokesperson said, "We urge people to look out for vulnerable neighbours, family and friends who may be at greater risk during this period."

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Temperatures in the borough will reach 30°C for three consecutive days from 11 August, meeting the Met Office heatwave threshold.

Prolonged dry conditions and water restrictions

The heatwave follows one of the driest Julys on record, with England and Wales experiencing their lowest rainfall since records began. Heathrow has not recorded measurable rain since 23 June, marking 41 consecutive dry days. The lack of rainfall has led to water shortages, prompting Thames Water to impose a hosepipe ban affecting 15 million customers across London and the Thames Valley.

The Met Office has warned that much-needed rainfall may not arrive until October. In the meantime, the dry conditions have heightened the risk of wildfires. On Monday afternoon, London Fire Brigade tackled a large grass fire in outer London, though the exact location was not specified. Firefighters have urged residents to avoid using barbecues or open flames in parks and grasslands.

What residents can do

Barnet Council has not issued any additional local measures in response to the heat alert. However, residents are advised to follow general heatwave guidance: stay indoors during the hottest part of the day, keep curtains closed to reduce indoor temperatures, and drink plenty of water. Vulnerable residents, such as the elderly or those with chronic illnesses, should be checked on regularly.

Thames Water has asked customers to reduce water usage where possible. The company said in a statement, "We are monitoring the situation closely and taking steps to manage supplies, but we need everyone to play their part." Residents can report leaks or water wastage via the Thames Water website.

The amber alert will be reviewed on Wednesday morning. If temperatures remain high, the alert may be extended. The Met Office will issue updated forecasts throughout the week.