Lightning fills the sky over Glasgow as weather warnings issued

Lightning fills the sky over Glasgow as weather warnings issued
Four days of Met Office thunderstorm weather warnings that began yesterday will continue until Wednesday
Britain is set to be battered by thunderstorms, heavy rain, hail, lightning and flash floods over next few days
It comes after weeks of sweltering temperatures saw a drought declared across more than half of England
Truro in Cornwall saw flash flooding with hailstones the 'size of £1 coins', with some roads turning into rivers