The Met Office's weather warning for Norfolk and Suffolk has now been extended to more areas in the two counties. 

A yellow warning for thunderstorms is in place from 12noon until 8pm on Sunday (May 26) and this now applies to the whole of Norfolk.

Northern parts of Suffolk are also affected, including Brandon, Mildenhall, Newmarket, Bury St Edmunds, Halesworth and Beccles. 

Eastern Daily Press: The Met Office has issued a yellow weather warning for thunderstorms Picture: Denise BradleyThe Met Office has issued a yellow weather warning for thunderstorms Picture: Denise Bradley (Image: Newsquest)

The warning also spreads across the south-west, Midlands and the north of England, extending up to southern Scotland. 

READ MORE: Norfolk events cancelled amid thunderstorm weather warning

Slow-moving showers and thunderstorms are expected to develop during Sunday afternoon.

The amount of rainfall will vary significantly across the warning area, but in places where showers become organised there is the possibility of 20-30 mm of rain falling in an hour or less.

Spray and sudden flooding could lead to difficult driving conditions and some road closures.