Flood Alert Areas
This record is for Approval for Access product AfA055. Flood Alert Areas are geographical areas where it is possible for flooding 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 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. 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) is 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 technical 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. The triggers for groundwater flood alerts are based on actual observed groundwater levels. There are currently no flood risk maps for groundwater; as a result we are unable to identify properties definitely at risk. Attribution statement: © Environment Agency copyright and/or database right 2021. All rights reserved. © Crown copyright and database rights 2021 Ordnance Survey 100024198
dataset
https://environment.data.gov.uk/DefraDataDownload/?mapService=EA/FloodAlertAreas&Mode=spatial
protocol: DSP:ESRI
name: FloodAlertAreas_Download
description: Flood Alert Areas Download
https://environment.data.gov.uk/spatialdata/flood-alert-areas/wms
protocol: WMS
name: FloodAlertAreas_WMS
description: Flood Alert Areas WMS
https://environment.data.gov.uk/spatialdata/flood-alert-areas/wfs
protocol: WFS
name: FloodAlertAreas_WFS
description: Flood Alert Areas WFS
https://support.environment.data.gov.uk/hc/en-gb
protocol: http:
name: DSP_CUSTOMER_FORUM
description: Defra Data Services Platform Customer Forum
https://environment.data.gov.uk/arcgis/rest/services/EA/FloodAlertAreas/MapServer
protocol: WWW:LINK-1.0-http--link
name: Flood_Alert_Areas_ESRI_REST_Endpoint
description: Flood Alert Areas - ESRI REST Endpoint
864c72de-d465-11e4-855f-f0def148f590
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
inlandWaters
oceans
flood
flooding
safety measure
OpenData
publication
2008-06-13
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2021-08-18T11:30:00
creation
2004-01-01
revision
2021-08-18T11:30:00
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.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
description: Defra Data Services Forum
pointOfContact
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2021-08-23