High risk of flooding from surface water and small watercourses
Surface water and small watercourse flooding happens when rainwater does not drain away through the normal drainage systems or soak into the ground, but lies on or flows over the ground instead.
What does ‘high’ mean?
High means that each year, this area has a chance of flooding of greater than 1 in 30 (3.3%).
This type of flooding can be difficult to predict, much more so than river or sea flooding as it is hard to forecast exactly where or how much rain will fall in any storm.
This is based on the best information we have available, such as ground levels and drainage.
Floods destroy - be prepared
Don’t wait until it’s too late. Prepare for flooding by following some simple steps to reduce the impact of flooding on your home or business.
- What to do before, during and after a flood
- Sign up for free flood warnings
- View the flood warnings currently in force
Planning a development
This information is not suitable for use in land-use planning. If you are planning a development, you need to use the Welsh Government's Development Advice Map. This is because for planning purposes you need to use information based on flooding without defences.
Further information
For more information on flood insurance see:
You can use the information in the Flood Risk Assessment Wales Map to see the approximate areas that would flood.
If you have any further questions on how to prepare for flooding, please call Floodline on 0345 988 1188.
This area may be at risk from other types of flooding