Flood Warning Areas

This spatial Flood Warning Areas dataset are geographical areas where NRW expect flooding to occur and where NRW provide a Flood Warning Service.


Flood Warning Areas generally contain properties that are expected to flood from rivers or the sea. Specifically, Flood Warning Areas define locations within the Flood Warning Service Limit that represent a discrete community at risk of flooding. A discrete community is a recognised and named geographical community, which can be an urban area, a significant suburb of a large city or a village or a hamlet.


The purpose of Flood Warnings is to alert people that flooding is expected and they should take action to protect themselves and their property. An online viewable version of this dataset is available here https://naturalresources.wales/our-evidence-and-reports/maps/flood-risk-map/?lang=en

Identification

Identifier
NRW_DS116238
Alternative Title
  • Flood Warning Areas.LYR
  • AfA054 Flood Warning Areas
Metadata Language
English
Lineage

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.
Additional Information

Further information on our flood warning codes is available on the NRW website. Live flood warnings in force are shown on the NRW website in both tabular and map based formats. The live information is updated every 15 minutes. It is also available on our Flood Alerts Wales mobile app. Customers can also obtain recorded messages on the current Alerts and Warnings in force and information on the latest flooding situation for the Flood Alert or Flood Warning Area by telephoning Floodline on 0345 9881188 and using the menu options, or by entering a QuickDial code for the respective Alert or Warning Area.
Dataset Reference Date (Publication)
2026-09-02

Temporal Extent

Begin date
2013-04-01
 
Topic category
  • Health
  • Environment
  • Society
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Environment Agency Wales -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/regions/wales
Originator
  Environment Agency (EA) -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/
 

Extent

Extent

Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Distribution

Format Type and Description
  • Geographic Information System ( Unknown )

    Specification

    ArcGIS Format

Resource Locator
Download Data ( WWW:LINK-1.0-http--link )
Resource Locator
Web Mapping Services ( OGC:WMS )
 

Quality

Data quality

Quality Scope
Dataset
Conformity
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

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.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus
  • flood risk
  • flood risk management
  • floods (flooding)
Type
Theme

Citation

Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

NRW SMNR Keywords
  • Sea and Coast (SMNR)
  • Water Resources (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
  • Physical Geography (Physiography) (SMNR)
  • Coastal Margins (SMNR)
  • Hydrological Processes (SMNR)
  • Ecosystem (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Management Areas (SMNR)
  • Flooding (SMNR)
  • Freshwater and Wetlands (SMNR)
  • Water Quality (SMNR)
Type
Theme

Citation

Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
 

Attribution Statement

Other constraints

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.
 

Licence

Other constraints
Open Government Licence
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313136323338 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2026-09-03T10:52:00.3Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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