Yellow warning for thunderstorms issued for parts of England and Scotland

A yellow warning for thunderstorms has been issued for parts of the UK.

Heavy showers and thunderstorms are expected across northeast England and southeast Scotland on Wednesday, the Met Office said. The warning, which stretches from north of Edinburgh to south of Durham, comes into force at 11am and runs until 6pm.

Some areas could see 15-20mm of rain in less than an hour, which could bring flooding, forecasters added. There could also be damage to buildings and other structures from lightning strikes.

As the showers clear, strong winds with gusts of around 40mph may develop for a short period of time, said the Met Office. Train and road networks could also see delays, while there could be a "short term loss" to power in some areas.

Find out the forecast for your area It comes after the UK recorded its hottest day of the year so far. On Tuesday, a temperature of 34.7C (94.46F) was recorded at St James's Park in central London, the Met Office said.

Cooler conditions have been sweeping across the country from northern parts overnight. Forecasters said despite the possibility of thundery downpours, eastern areas should become drier and sunnier as evening approaches.

England and Wales are expected to be dry overnight, but it will be cloudier in Scotland and Northern Ireland with showers spreading eastwards. Tuesday was likely to have been the peak of the latest heatwave in the UK, added the Met Office.

Read more from Sky News:Heat brings concerns for player safety at Women's Euros'Catastrophic failure' led to Heathrow power outage But conservationists and green experts continue to warn of the wildfire risk amid the tinder dry conditions. Ben McCarthy, of the National Trust, said: "With record-breaking temperatures across the country this week following the driest spring on record, our ranger and countryside teams are on high alert for fires which can cause decades of damage to habitats, decimate ecosystems and result in significant losses to our wildlife.".