Thunderstorms and high temperatures are on the way with London set for a turbulent weekend of weather.
The Met Office has issued a yellow thunderstorm warning for the capital in effect from 3pm today (June 13) until 6am tomorrow (June 14)
At the same time a yellow heat health alert has been issued by the UK Health Security Agency as temperatures are expected to hit 30C on Friday.
The heat health alert is the first of its kind this year and is currently in place until 8am on Sunday covering London, the South East, East Midlands and East of England.
The alert warns that vulnerable people particularly those over 65 or with existing health conditions may be at increased risk.
According to the Met Office London could experience frequent and heavy thunderstorms with 10 to 15 millimetres of rain falling in under an hour and some areas potentially seeing 30 to 40 millimetres over several hours due to repeated downpours.
Other hazards include hail frequent lightning and strong gusty winds.
Commuters should prepare for possible train delays flooding and short term power outages.
The Met Office has advised the public to check travel updates and consider if their location is at risk of flash flooding People are urged to prepare flood plans and have emergency kits ready.
Dr Agostinho Sousa head of extreme events and health protection at UKHSA said“Our findings show that even moderate heat can result in serious health outcomes especially for older adults It’s important everyone takes sensible precautions while enjoying the sun”.
Met Office Chief Meteorologist Neil Armstrong said “A weather system will push northwards through tomorrow bringing heavy rain and a risk of thunderstorms to parts of southwest England most of Wales and later into Northern Ireland.
“Forty millimetres of rain could fall in 3 hours or less leading to the potential for disruption.
“Further thunderstorms will develop during the afternoon across England and Wales moving quickly northwards with hail and lightning.“Temperatures will remain high with 26 or 27C possible again in the north Midlands and parts of north London”
“The forecasted high temperatures are expected to be short lived but could primarily impact those over the age of 65 or those with preexisting health conditions.
“If you have friends’ family or neighbours who are more vulnerable it is important to check in on them and ensure they are aware of the forecasts and are following the necessary advice”.