The Met Office is warning that a month's worth of rain could fall in one day this weekend.

As parts of the UK face heavy rain and a small chance” lives could be put at risk in thunderstorms which are expected to hit the southwest of England and south Wales.

The Met Office has also issued a yellow weather warning for thunderstorms across the region starting at 7am until 6pm, seeing major cities including Bristol, Cardiff and Swansea affected.

Some homes and businesses are also being told that there is a danger of flooding quickly due to "torrential downpours", with up to 70mm of rainfall in a few hours.

See the full weather forecast via the Met Office website. 

Met Office warns of torrential rainfall

The Met Office's forecast also suggests that some buildings could also be damaged by lightning, hail or strong winds as well as floodwater.

There is also a “small chance” of power cuts or that other services to homes and businesses could be lost while some communities could also be cut off by floodwater, the Met Office said.

Roads may be closed at short notice due to spray and sudden floods and “difficult driving conditions” are expected on those that remain open.

Met Office meteorologist Rachel Ayers said the region has already seen some rainfall but it is expected to get worse later this weekend.

She added: “The heaviest and most persistent rain will be tomorrow morning, bringing a risk of some potential flooding in homes and businesses.”

Ms Ayers urged drivers to think about their stopping distances if they need to travel on a motorway and to look at the Met Office and RAC websites for updates before setting off.

She said the region’s weather will “remain unsettled” early next week, bringing “very changeable and autumnal” conditions.