A YELLOW weather warning has been issued for areas of Somerset - with expected thunderstorms this weekend.

The Met Office has forecast thunderstorms across parts of the UK on Sunday from 4am - 9pm.

Parts of Somerset are expected to be affected.

The main areas set to be affected by the predicted thunderstorm have been released by the Met Office. (Image: Met Office)

Thunderstorms are most likely to happen between May and August each year.

The number of thunderstorm days in the UK can vary from less than five in a quiet year to more than 20 in an active year. 

Each year the United Kingdom, Ireland and the surrounding seas typically experience 200,000 to 300,000 lightning counts.

On exceptional 'thunderstorm days' more than 50,000 can occur, as happened on 28 June 2012 when there were 64,000 strikes in the UK. 

The Met Office has posted information online about how to deal with UK weather warnings - which you can find on their website.