Thunderstorms are on the way as map shows which areas are most at risk of frequent lightning with a month's worth of rain set to fall in a few hours

A spell of thunderstorms is forecast for a numbers of Brits this evening despite warm weather continuing for the rest of this week after the hottest day of the year so far. The Met Office has issued a 36-hour weather warning amid concerns some areas could see up to a month's rainfall in a few hours, resulting in flash flooding. Neil Armstrong, chief forecaster at the Met Office, said: 'The focus for Wednesday's thunderstorm Yellow warning extends across a swathe of southeastern England from Hampshire to Essex, including London and parts of the Home Counties. A person enjoys the weather in Regent's Park, London, on the hottest day of the year so far People enjoy the warm weather at Clevedon Marine Lake in Clevedon A woman makes the most of the hot weather at Clevedon Marine Lake in Clevedon before thunderstorms hit on Wednesday evening and Thursday The Met Office's Yellow thunderstorm warning covers most of England and Wales except the far South West and northwest Thunder and lightning activity is in the forecast from Wednesday evening, extending at least into Thursday Visitors pack out Brighton beach in East Sussex yesterday to enjoy the hot weather Three women enjoy the warm weather at Greenwich Park in South East London yesterday Dog walkers and joggers out first thing this morning on the Long Walk in Windsor, Berkshire Low-lying cloud formations over the Oxfordshire countryside in Dunsden this morning There is a risk of flooding in some parts of the country, but the exact locations under threat are not yet clear because the thunderstorms will be 'quite hit and miss'. For the same day, the Met Office's Yellow thunderstorm warning covers most of England and Wales except the far South West and northwest.