Forecasters have issued a new yellow warning for rain as parts of the UK could face flooding and travel disruption in the coming days.

The Met Office said "15-25mm of rain is likely to accumulate quite widely" in South Wales and the South West of England on Wednesday and will fall on ground which is already saturated.

The yellow warning applies from 10am until the end of the day.

Check the forecast for your area

There is a chance of power cuts and disruption to travel networks, while some communities could "become cut off" due to the conditions, said the Met Office.

It comes as many parts of the UK were already facing warnings previously issued for Monday and Tuesday.

An amber rain warning for possible danger to life is in force until 9pm on Monday for southern parts of Wales.

Forecasters said 50mm to 80mm of rain is "likely to fall quite widely" with some places "seeing close to 100mm".

The Met Office added that "fast flowing or deep floodwater is likely, causing danger to life" and warned it was "not safe to drive, walk or swim" through such conditions.

"Given the recent wet weather and saturated ground, the likelihood of impacts is higher," the agency said.

"If you must travel, ensure you watch for possible danger and drive cautiously."

Further yellow rain warnings are also currently in place for parts of northeast, northwest and southwest England, the East Midlands, the West Midlands and Wales.

Most apply for much of Monday, but the warning for the North East of England and Yorkshire is in force until 3am on Tuesday.

Read more from Sky News:
Christmas strike by resident doctors to go ahead
US and China should collaborate over moon trips, says Tim Peake

Sky News meteorologist Dr Christopher England said the "prolonged heavy rain on already saturated ground" has led to the series of Met Office warnings.

"In Cumbria, there has been over 150mm of rain quite widely, with 360.6mm recorded at the Honister Pass - over a foot in old money - while Scotland has seen over 100mm in places," he said.

"Further rain moving in on Wednesday has led to another yellow warning in the South West, indicating the chance of some significant disruption there."

It comes after the UK faced a series of similar warnings at the weekend.