Historic Flood Warnings and Flood Alerts
These datasets show all messages issued for flooding from rivers or the sea in Wales since 2006.
There are three flood warning codes:
Flood Alert - flooding is possible; be prepared (replaced Flood Watch in 2010)
Flood Warning - flooding is expected; take immediate action
Severe Flood Warning - severe flooding is expected; danger to life
Environment Agency Wales provided data up until 1 April 2013. Since then, it has been provided by Natural Resources Wales.
The data is split across two Excel files. The first covers February 2006 to July 2024, when the Environment Agency’s Flood Warning System (FWS) and Floodline Warnings Direct (FWD) systems were in use. The second file contains data from July 2024 onwards, following the transition to our NRW-owned Flood Warning Information Services for Wales (FWISfW).
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116342
- Alternative Title
-
- AfA435 Historic Flood Warnings and Flood Alerts
- Metadata Language
- English
- Lineage
-
Please note that from January 2011, the Flood Alert code replaced the older Flood Watch code. This historic dataset therefore contains Flood Watches rather than Flood Alerts prior to this date.
- Additional Information
-
Live flood warnings in force are available on the NRW website https://flood-warning.naturalresources.wales/
- Dataset Reference Date (Publication)
- 2026-03-17
Temporal Extent
- Begin date
- 2006-02-15
- End date
- 2026-03-13
- Topic category
-
- Health
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Delimited
(
Unknown
)
- Specification
-
Excel Spreadsheets
-
Delimited
(
Unknown
)
- Resource Locator
- Download Data and Web Service ( WWW:LINK-1.0-http--link )
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
-
Please note that from January 2011, the Flood Alert code replaced the older Flood Watch code. This historic dataset therefore contains Flood Watches rather than Flood Alerts prior to this date.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
-
NRW Thesaurus
-
- flood risk
- flood risk management
- floods (flooding)
- Type
- Theme
Citation
- Date (Publication)
- 2026-03-04
Keywords
-
IPSV Subjects List
-
- Flooding
- Type
- Theme
Citation
- Date (Publication)
- 2020-11-18
Keywords
-
NRW SMNR Keywords
-
- Hydrological Processes (SMNR)
- Freshwater and Wetlands (SMNR)
- Natural Resources (Incl. Features and Processes) (SMNR)
- Flooding (SMNR)
- Soil and Land (SMNR)
- Water Quality (SMNR)
- Physical Geography (Physiography) (SMNR)
- Ecosystem (SMNR)
- Coastal Margins (SMNR)
- Management Areas (SMNR)
- Sea and Coast (SMNR)
- Water Resources (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-26
Spatial Reference System
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. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. 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.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313136333432 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2026-03-17T15:05:59.808Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0