Heavy rain has been falling in northern England and north Wales.
Around 500 people in St Asaph, north Wales, have been told to leave their homes, after River Elwy broke its banks. Pickering in Yorkshire and the North York Moors are also at risk.
Across the UK 960 properties have flooded since Wednesday and the Environment Agency has sent 110,000 warnings to people at risk of flooding.
Ricky has been to St Asaph to see how people are coping with the situation there.