• {'logoName' | translate} NRW Data Discovery

Ardaloedd Rhybuddion Llifogydd Byddwch yn Barod

Mae Ardaloedd Rhybudd Llifogydd (Flood Alert Areas) yn ardaloedd daearyddol lle mae'n bosibl i lifogydd ddigwydd o afonydd neu'r môr. Gall un Ardal Rhybudd Llifogydd o fewn Terfyn Gwasanaeth Rhybuddio am Lifogydd gynnwys gorlifdir nifer o ddalgylchoedd â nodweddion tebyg sy'n cynnwys nifer o Ardaloedd Rhybuddion am Lifogydd (Flood Warning Areas). Gall Ardal Rhybudd Llifogydd gyd-daro hefyd ag Ardal Rhybuddio am Lifogydd gyfatebol a rhybuddio am y posibilrwydd o lifogydd yn yr ardal honno. Mewn rhai lleoliadau arfordirol gall Rhybudd Llifogydd gael ei gyhoeddi ar gyfer ewyn a thonnau'r môr yn torri dros y lan a chael eu diffinio gan ddarn o arfordir. Gall ffactorau ymarferol a gweinyddol ddylanwadu ar union faint Ardal Rhybudd Llifogydd hefyd.


Mae fersiwn ar-lein o'r set ddata ar gael yma - https://naturalresources.wales/flooding/check-your-flood-risk-on-a-map-flood-risk-assessment-wales-map/?lang=cy


Datganiad priodoli


Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a Hawl Cronfa Ddata. Cedwir pob hawl. Yn cynnwys data Arolwg Ordnans. Rhif Trwydded Arolwg Ordnans AC0000849444. Hawlfraint y Goron a Hawl Cronfa Ddata.

  • Dull adnabod
  • Rhychwant
  • Dosbarthiad
  • Ansawdd
  • Allweddeiriau
  • System Cyfeirio Gofodol
  • Cynnwys
  • Cyfyngiadau
  • Cynnal a chadw
  • Metadata

Dull adnabod

Dynodydd
NRW_DS116239
Teitl Amgen
  • Flood Alert Areas.LYR
  • AfA055 Flood Alert Areas
Laith Metadata
English
Datganiad

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 Flood Warning Area.


This dataset was formerly known as Flood Watch Areas and is now referred to as Flood Alert Areas.

Gwybodaeth ychwanegol

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.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
2026-09-02

Ystod amser

Dyddiad cychwyn
2004-01-01
 
Categori pwnc
  • Health
  • Environment
  • Society
Perchennog
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
  Environment Agency Wales -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/regions/wales
Cychwynnwr
  Natural Resources Wales (NRW) -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://naturalresources.wales/?lang=en
 

Rhychwant

Rhychwant

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


 
 

Dosbarthiad

Dosbarthiad

Fformat - Math a Disgrifiad
  • Geographic Information System ( Unknown )

    Math

    ArcGIS layer

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

Ansawdd

Ansawdd Data

Cwmpas Ansawdd
Dataset
Cydymffurfiad
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
Eglurhad

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

Gradd
false
Datganiad

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 Flood Warning Area.


This dataset was formerly known as Flood Watch Areas and is now referred to as Flood Alert Areas.

 

Allweddeiriau

Allweddair

GEMET - INSPIRE themes, version 1.0
  • Natural risk zones
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2008-06-01
Cod
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

  • Severe Flood Warnings
  • floods (flooding)
  • Floodline
  • Flood Warnings
  • Warning Plan
  • Warning System
  • Flood Alerts
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2026-08-27
Cod
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

IPSV Subjects List

  • Flooding
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2020-11-18
Cod
geonetwork.thesaurus.external.theme.subjects

Allweddair

NRW SMNR Keywords

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

Dyfyniad

Dyddiad (Cyhoeddiad)
2024-06-26
Cod
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

System Cyfeirio Gofodol

Cod
British National Grid (EPSG::27700)
 

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

 

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Math o Gyfyngiad
Other restrictions
 

Cyfarwyddeb Cyfyngiadau Mynediad

Cyfyngiadau
no limitations
 

Testun cyfyngiadau mynediad

Cyfyngiadau eraill

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

 

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio
Other restrictions
Cyfyngiadau eraill

© 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

 

Datganiad Priodoli

Cyfyngiadau eraill

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.

 

Math o Drwydded

Cyfyngiadau eraill
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
4f4c4942-4343-5764-6473-313136323339 XML
Laith Metadata
English
Math o adnodd
Dataset
Dyddiad Metadata
2026-09-03T10:52:52.561Z
Enw Safonol Metadata
NRW
Fersiwn Metadata

1.0

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

Corff Cyhoeddi

Mynediad i'r Porth
Mynediad llawn i'r porth a'r metadata.


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