APIs

  • Open Data - 5-day Flood Risk for Wales API

    An assessment of flood risk is produced by the Flood Forecasting Centre (FFC) daily and issued more frequently when serious flooding is forecast. This service provides an indication of the likelihood and impact of flooding for five days: for the day of issue and the subsequent four days. Flood risk information is provided as a short commentary of the overall situation for Wales and covers flooding from rivers, the sea, surface water and groundwater. A flood risk level is displayed for each local authority, from low to high.

  • Open Data - Flood Risk Forecast API

    The flood risk forecast is produced by the Flood Forecasting Centre (FFC) on a daily basis. It is issued more frequently when serious flooding is forecast. It provides the indication of the potential for flooding for five days: the day on which it is issued and the subsequent four days ahead.

    The forecast highlights flood risk on a county by county basis and includes a short commentary on the situation. It covers flooding from rivers, the sea, surface water and groundwater for England and Wales.

  • Open Data - Live Flood Warnings and Alerts API - Version 2

    Natural Resources Wales issue warnings of floods that cover specific warning or alert areas. The floods API provides a listing of all current such warnings and is updated every 15 minutes.

    Note: This version will now return Warning & Alerts in a 'Warning no Longer in Force' Status.

  • Open Data - Live Flood Warnings and Alerts API - Version 3

    Natural Resources Wales issues flood warnings and alerts to specific geographical warning and alert areas. This API provides a listing of all current warnings and alerts and is updated within minutes of a flood warning or flood alert being issued.

    Note: This version will now return the Tidal attribute as ‘True’ if a message is in force over a tidal flood warning or alert area. The file header has less content and enforces HTTPS in line with security standards.

  • Open Data - River level, Rainfall and Sea Data API

    The Natural Resources Wales River Level, Rainfall and Sea data API provides recent and historical data relating to river levels, rainfall totals, and sea (tide) levels. Readings are taken at monitoring stations located across Wales. This data is unverified and may be subject to change. Whilst we make every effort to ensure the accuracy of the information provided, neither Natural Resources Wales, nor its employees or agents can be held responsible for any inaccuracies or omissions, whether caused by negligence or otherwise.

    This service replaces the Open Data – River Levels API currently available, which will be withdrawn from service on 31st October 2020.
  • Open Data - River Levels API

    Provides information on readings of river levels at our measurement stations across Wales.