Barnet faces first rain in weeks on 17 August as heat health alert remains
Light showers expected in the afternoon, with temperatures staying above 20°C during wet days
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Barnet will see its first rainfall in weeks on 17 August, as light showers move across the borough in the afternoon. BBC Weather forecasts the rain will provide temporary relief to parched green spaces, including local parks and gardens, which have been affected by prolonged dry conditions.
The showers are expected to last for several hours, though temperatures will remain above 20°C. Both 17 and 20 August are forecast to see highs of 22-23°C, even during rainfall. This follows a period of extreme heat, with temperatures in London projected to reach 36°C on 14 August, as reported by the Met Office.
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Heat health alert in place until Tuesday
The UK Health Security Agency issued a yellow heat health alert on 8 August, covering London and several other regions in England. The alert, which remains in force until 19 August at 9pm, highlights the risks posed by high temperatures, particularly to vulnerable groups such as the elderly and those with underlying health conditions.
Deputy Chief Forecaster Mike Silverstone, speaking to MyLondon, said the heatwave is expected to peak on 14 August. He warned that humidity levels will rise through the week, making conditions feel more uncomfortable, especially at night. The alert advises residents to stay hydrated, keep out of the sun during peak hours, and check on neighbours who may be at risk.
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What happens next
After the showers on 17 August, Barnet is expected to return to dry and sunny conditions. Temperatures will rise again, with forecasts suggesting highs of up to 30°C on 18 August. The Met Office has not yet indicated whether the heat health alert will be extended beyond 19 August, but residents are advised to monitor updates from the UK Health Security Agency.
Local authorities in Barnet have not announced any specific measures in response to the heatwave or the upcoming rain. Residents are encouraged to report any concerns about public spaces, such as damaged pavements or fallen trees, through Barnet Council’s online reporting system.
Questions this report answers
+When will Barnet see rain again?
Barnet will experience light showers on the afternoon of 17 August, the first rainfall in weeks. Further light rain is forecast for the morning of 20 August, according to BBC Weather forecasts.
+How hot will it be during the rain?
Temperatures will stay above 20°C during the rain, with highs of 22-23°C expected on both 17 and 20 August. Residents should still prepare for warm conditions, despite the showers.
+Is there a heat health alert for Barnet?
Yes, the UK Health Security Agency issued a yellow heat health alert for London, including Barnet, on 8 August. The alert remains in place until 19 August, 9pm, warning of risks to vulnerable groups.
+What should residents do during the heatwave?
Residents are advised to stay hydrated, avoid the sun during peak hours, and check on vulnerable neighbours. The UK Health Security Agency recommends monitoring updates and following guidance to reduce health risks.
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