Richard Preece, Natural Resources Wales’s Duty Tactical Manager, said: “We are asking people to be alert for potential flooding with heavy rain predicted overnight on Sunday into Monday morning, especially in parts of South Wales.

“With some rivers already swollen and the ground saturated, we expect to see a number of flood alerts and warnings issued. We also expect the rain to cause surface water issues. We’re urging people to be vigilant and to make preparations for potential flooding now. You can check if you live in an area at risk of flooding on our website and sign up for our free flood warning service.

“We also want to remind people to keep away from swollen riverbanks and not to drive or walk through flood waters as you don’t know what lies beneath.

“We do not provide flood warnings for flooding from surface water, so it’s important for everyone to know their flood risk.

“If flooding is forecast in your area, we want to make sure people are doing all they can to keep themselves safe. Think about preparing a flood kit with any important documents and medication, moving your car to higher ground and moving treasured possessions upstairs or to a higher place.

“Check the flood warning pages on our website for local Flood Alerts and Flood Warnings for river or coastal flooding. These pages are updated every 15 minutes. Visit naturalresources.wales/flooding or call Floodline on 0345 988 1188.”