Flood Warning Areas

This record is for Approval for Access product AfA054 Flood Warning Areas. These are geographical areas where we expect flooding to occur and where we provide a Flood Warning Service. They generally contain properties that are expected to flood from rivers or the sea and in some areas, from groundwater. Specifically, Flood Warning Areas define locations within the Flood Warning Service Limit that represent a discrete community at risk of flooding. Flood Warnings are issued when flooding is expected to occur, Severe Flood Warnings are issued to similar areas when there is a danger to life or widespread disruption is expected. INFORMATION WARNING: Groundwater flood warning areas are property based, usually containing a discrete urban area, suburb, city, village, or hamlet and were created in various ways. In general specialists used the national groundwater dataset, historical maps, bedrock geology and records of properties affected by groundwater flooding in the past to create the groundwater flood warning areas. Additional data sources, including groundwater susceptibility maps, borehole data, local modelling and LiDAR may also have been used depending on the location of the area. Flood Warning Areas can be created, amended, or deleted at certain times in the year. This dataset was last updated on: 20th November 2024 The scheduled updates where changes may be introduced are: 21st February 2024 22nd May 2024 - due to the ongoing flooding, this was postponed until June 5th 14th August 2024 and 20th November 2024 Please note that these dates may change at short notice if there are system issues or a large-scale flood event.