Weather warnings are in place for several parts of Britain as heavy rains could bring flooding and travel disruptions across the weekend.

Five western areas from Scotland to Plymouth are subject to a Met Office yellow warning, with a more serious amber warning current for South Wales.

Heavy rain is forecast there for much of Saturday, with up to almost 3in (70mm) expected widely within the area concerned, which covers South Wales from Pontypool in the east to Haverfordwest near the west coast.

Latest UK weather forecast

Double that amount (150mm) is expected on high ground and upslopes in the south and southwest of the amber zone and almost 8in (200mm) possible at the highest ground, the office says.

The warning, which is in place until 6pm on Saturday, says “as well as heavy rain, strong to gale-force southerly winds will be an additional hazard”.

There is a “good chance” some communities in the region will be cut off by flooded roads, while power cuts and delays and cancellations to train and bus services are likely.

Natural Resources Wales issued 37 flood alerts and 11 flood warnings on Friday evening, while the Environment Agency issued 11 flood warnings, where flooding is expected and immediate action required, and 97 flood alerts for England.

The Scottish Environment Protection Agency issued 32 flood warnings and nine flood alerts.

Yellow weather warnings are also in place across large parts of West Wales and South Wales, parts of West, southwest and central Scotland from Friday until Sunday, parts of Devon and Cornwall from Friday to Saturday and parts of Cumbria on Saturday.

⚠️With an Amber rain warning issued for south Wales #tonight and #Saturday, here is an idea of what to expect and prepare for ⚠️

Stay #WeatherAware https://t.co/XeGBREic5S pic.twitter.com/QkA7CJXLIR

Sky weather presenter Nazaneen Ghaffar said the main area of concern is southern Wales.

“Some places there could see up to 200mm of rainfall by the end of Saturday. That would be nearly double the average for February for southern Wales.

While “Monday looks fine for most places”, she warned that Tuesday “will see further outbreaks of rain with heavy downpours for the North and West as well as Ireland, which could exacerbate any flooding issues for these areas,” she said.

Met Office weather forecaster Marco Petagna said the east of the country would have a much quieter weekend with mild temperatures up to 16C in the South East, but with light and patchy rain on Sunday.

He agreed about the prognosis for next week, saying “there’s more rain to come”.

“There will be some respite Sunday and Monday but going into Tuesday there’s some more rainfall.

“Again the West and North West could see further rain developing,” he added.

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