SOMERSET is set to be battered by heavy rain as a second weather warning in three days is issued.

The yellow warning begins at midnight and runs through to 3pm tomorrow.

The Met Office warns of travel delays and potential for flooding.

A spokesperson said: "Spells of rain and heavy showers are expected to affect southern parts of England and Wales during Tuesday.

"The heaviest rainfall is likely to be during the morning.

"Around 20 to 40 mm of rain is expected to fall quite widely, with the potential for up to 70 mm in a few locations.

"Much of the rain will fall in a relatively short space of time, typically less than 6 hours.

"The location of the very heaviest rainfall is currently still somewhat uncertain."

Another yellow warning was issued for much of the country on Sunday (September 22), as a week of rain begins.

In Somerset, the worst of the rain is scheduled to hit around 6am, when thunder is also due. 

According to the Met Office, rain is set to begin in the early hours of tomorrow morning, and won't cease until 1am on Wednesday.