Lightning and thunder batter Britain overnight ahead of 'extreme' heat weather warning
The alert comes into force tomorrow morning at 9am and lasts 36 hours until 9pm on Thursday
Lightning
UK weather: Azores high sparks southward heat blast as thunderstorms threaten to strike Britain
Warmer conditions are expected in the south, which could trigger thunderstorms
Britons warned of holiday travel chaos as thunderstorms bring up to 90mm of rain in just THREE HOURS
Thunderstorm warnings has been issued for the weekend
