Thunderstorms and lightning are set to batter the UK with up to 70mm of rainfall expected within a few hours after a spell of dry, warm weather.The Met Office has issued two yellow weather warnings for thunderstorms for Friday and Saturday, and said damage to buildings as a result of lightning strikes, disruption to public transport and flooding should be expected within the affected areas.Friday's alert covers most of south-west England, parts of Wales, the Midlands and west London and is in pl

Thunderstorms and lightning are set to batter the UK with up to 70mm of rainfall expected within a few hours after a spell of dry, warm weather.The Met Office has issued two yellow weather warnings for thunderstorms for Friday and Saturday, and said damage to buildings as a result of lightning strikes, disruption to public transport and flooding should be expected within the affected areas.Friday's alert covers most of south-west England, parts of Wales, the Midlands and west London and is in place from 12pm until 8pm.The second warning is in place all of Saturday from 1am and covers all of Wales and south-west England, the Midlands and parts of south-east England.The weather service has warned that hail and frequent lightning could accompany the "thunderstorms and heavy showers" and that up to 70mm of rain could fall in the worst affected areas on Saturday.The stormy weather follows a warm, dry spell as temperatures reached 25C in Inverness on Wednesday and highs of 26 are expected on