The Met Office has issued a warning for rain over the weekend for the West of the UK, including parts of Powys where flood waters drain into the upper Severn and Vyrnwy which then cross the Welsh/English border in Shropshire.
Heavy rain is predicted to fall throughout the weekend continuing until midday Sunday.
See the latest forecast from The Met Office here:
Emergency response workers from Natural Resources Wales will be at key sites, checking defences are in good working order and making sure any drainage grids and screens are clear to reduce the risk to people and their homes.
Gary White, duty tactical manager for Natural Resources Wales, said: “The predicted weather may cause flooding in south and mid areas of Wales so we’re advising people to keep up to date with flood warnings issued in their area via our website, which is updated every 15 minutes.
“We are working alongside our partners from the emergency services and local authorities to minimise the risk to communities.
“Flood water can be extremely dangerous, and I urge people not to attempt to walk or drive through it, unless instructed by the emergency services.”