UK: Parts of country could see 30 to 40 millimeters of rainfall over just two hours

London: Millions of Britons face being hammered by a yellow thunderstorm warning, the Met Office has warned.

The UK’s national weather service issued a yellow warning stretching down from north east Scotland to the east of England.

Thunderstorms could cause disruption and localised flooding on Sunday afternoon and evening.

Rainfall could vary significantly but some areas could see 40 millimeters fall over the course of just two hours.

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Frequent lightning, large hail storms and strong winds could bring additional hazards in places.

Central, Tayside & Fife, Grampian, Highlands & Eilean Siar, Orkney & Shetland and South West Scotland & Lothian Borders have been identified as impacted areas in Scotland.

England’s impacted areas include the East Midlands, North East England and Yorkshire & Humberside.

But Sunday is also expected to see temperatures soar.