Flood Alert Areas
This record is for Approval for Access product AfA055. Flood Alert Areas are geographical areas where it is possible for flooding of low-lying land and roads to occur from rivers, sea and in some locations groundwater. A single Flood Alert Area may cover the floodplain within the Flood Warning Service Limit of multiple catchments of similar characteristics. A Flood Alert Area may contain one or more Flood Warning Areas. In some coastal locations a Flood Alert may be issued for spray or overtopping and be defined by a stretch of coastline. A Flood Alert is issued to warn people of the possibility of flooding and encourage them to be alert, stay vigilant and make early / low impact preparations for flooding. Flood Alerts are issued earlier than Flood Warnings to provide advance notice of the possibility of flooding and may be issued when there is less confidence that flooding will occur in a Food Warning Area. Flood Warnings Areas (established to apply to discrete communities) are available in AfA054. INFORMATION WARNING: The groundwater flood alert areas are either at a community/local scale, or where this is not possible are more generalised and based on other factors, such as geology and counties. In general, specialists used the national groundwater dataset to make a comparison with historical maps and bedrock geology to create the groundwater flood alert 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 Alert Areas can be created, amended, or deleted at certain times in the year. This dataset was last updated on November 20th 2024. The next scheduled update to this data is July 9th 2025. Attribution statement: © Environment Agency copyright and/or database right 2025. All rights reserved. © Crown copyright and database rights 2025 Ordnance Survey 100024198
dataset
protocol: http
name: Flood_Alert_Areas.lyr
description: Flood_Alert_Areas.lyr download on Defra Data Services Platform
https://environment.data.gov.uk/explore/864c72de-d465-11e4-855f-f0def148f590?download=true
protocol: http
name: FloodAlertAreas_Download
description: Download data by area of interest
https://environment.data.gov.uk/spatialdata/flood-alert-areas/wms
protocol: http
name: FloodAlertAreas_WMS
description: Flood Alert Areas - WMS
https://environment.data.gov.uk/spatialdata/flood-alert-areas/wfs
protocol: http
name: FloodAlertAreas_WFS
description: Flood Alert Areas - WFS
https://environment.data.gov.uk/spatialdata/flood-alert-areas/ogc/features/v1
protocol: http
name: OGC API - Features service
description: OGC API - Features service
864c72de-d465-11e4-855f-f0def148f590
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
inlandWaters
oceans
Environment Agency
Flood
Flood Alerts
environment
inlandWaters
oceans
flood
publication
2010-01-13
flooding
publication
2010-01-13
safety measure
publication
2010-01-13
-6.236
2.072
55.816
49.943
2004-01-01
2024-11-20
creation
2004-01-01
revision
2024-11-20
continual
Greatest extent of flooding defined using Flood Zone which in turn is used to delineate the Flood Warning Service Limit which is then subdivided into Flood Alert Areas.
Open format | Shapefile (SHP)
Not Applicable
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://environment.data.gov.uk/support
description: Defra Data Services Forum
pointOfContact
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
pointOfContact
2025-01-23