There is also a lot of information on this subject now feely available on the internet but these links are particularly useful:

https://naturalresources.wales/flooding/preparing-for-a-flood/?lang=en

https://thefloodhub.co.uk/household/

Should you wish to report any flooding issues to Flintshire County Council, please email Paul Reeves, Flood and Coastal Erosion Risk Manager : Paul.Reeves@flintshire.gov.uk