THE heatwave may come to an end tomorrow with thunder, lightning and localised flooding in York and North Yorkshire.

The Met Office has issued a 'yellow' warning of heavy thundery showers from 1pm and until 11pm tomorrow.

It says these 'have the potential to bring localised flooding, hail and frequent lightning.'

The storms may arrive after a muggy night tonight and another very warm and sunny morning tomorrow, with temperatures again soaring to about 25C.

Sunday will be cooler and fresher, with maximum temperatures down to 20C and a little sunshine likely, while Bank Holiday Monday will be cooler still, with temperatures only reaching 16C amid cloudy weather, isolated showers and a chilly north easterly breeze.