Eicon Platfform Map Cyhoeddus
Hafan Map Mapiau Sylfaenol Haenau Themâu Atlas Symbolau Cyfryngau Digwyddiadau Hyfforddiant
English Cymraeg
Mewngofnodwch
Hafan Map Mapiau Sylfaenol Haenau Themâu Atlas Symbolau Cyfryngau Digwyddiadau Hyfforddiant
English Cymraeg
Creu cyfrif a mewngofnodi i gadw eich newidiadau
Selected Base Map Layer
Dewisiadau haen map sylfaen chwith
Dewisiadau haen map sylfaen dde
Selected Base Map Layer

Priodweddau

Haenau Mapiau

  1. ▶
    Flood Alert Areas

    Flood Alert Areas are geographical areas where it is possible for flooding to occur from rivers or the sea. A single Flood Alert Area may cover the floodplain within the Flood Warning Service Limit of multiple catchments of similar characteristics containing a number of Flood Warning Areas. A Flood Alert Area may also match that of a corresponding Flood Warning Area and warn for the possibility of flooding in that area. In some coastal locations a Flood Alert may be issued for spray or overtopping and be defined by a stretch of coastline. Practical and administrative factors may also influence the exact extent of a Flood Alert Area. An online viewable version of the dataset is available here. Attribution Statement Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right.

    MapDataCymru