A YELLOW weather warning for “heavy and possibly” severe thunderstorms with possible flooding has been issued for Dorset for tomorrow and Saturday.

The Met Office has issued the warning for the weekend as the recent sunny weather ends heralding a period of thunderstorms and torrential rain.

Isolated heavy and possibly severe thunderstorms are forecasted to develop on Friday evening across periods of England and Wales, which are likely to become more frequent as the day progresses.

Following the downpours, the Met Office has warned that there could be localised, surface water flooding with potential large hailstones.

The Met Office has issued the warnings for the whole of England and Wales and some parts of Scotland, as there is uncertainty about the areas where the thunderstorms will be.

The warning starts from 7pm tomorrow and ends at midday on Saturday.

A spokesman for the Met Office said: “The public should be aware that there is a chance of some very localised significant disruption.”

The Met Office’s chief forecaster said: “On Friday evening another hot and increasingly humid airmass is expected to spread into the south from the continent.

“This airmass looks conducive to the development of isolated thunderstorms during the evening across England and Wales which could become more frequent later in the night as they spread northwards towards Scotland.

“With large amounts of energy again available in this atmosphere storms could be severe, with torrential downpours and large hail.

“Thirty millimetres of rain is possible in less than an hour, with as much as 50 mm possible in 3 hours very locally.

“Large uncertainty remains regarding areas most at risk from storms, and many areas will miss these altogether, staying largely dry. However, where they do develop, disruption is possible.”