Flood Risk Forecast Application Programming Interface (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 Wales and England.

Visit source ↗

Feature or claim this listing

Feature this listing — founding Featured slots are 50% off for 6 months

Represent Flood Risk Forecast Application Programming Interface (API)? Send a claim for review so we can discuss listing updates. Claims do not automatically grant ownership or verification.

Explore paid sponsorship →

What's in it

Data offered docs-verified: flood risk forecast: potential for flooding over five days (issue day plus four days ahead) · county-level flood risk indication · short commentary on the flood situation · flooding from rivers, sea, surface water and groundwater
Coverage docs-verified: Wales and England
Resolution docs-verified: County-by-county flood risk indication; five-day forecast horizon
Update frequency docs-verified: Daily; issued more frequently when serious flooding is forecast
Formats docs-verified: Download · Web Service
Access docs-verified: Free and open; no authentication listed; no access restrictions, NRW may release, publish or disseminate freely; re-use under Open Government Licence v3.0

Useful for

Use cases llm-inferred: Flood risk screening for Welsh and English sites using the county-level five-day outlook · Construction-phase flood risk check for site works and temporary flood exposure · Context for flood risk assessment narratives drawing on the daily FFC commentary
Audience llm-inferred: flood consultants · hydrologists · civils engineers · planners · GIS analysts

Limitations

Constraints llm-inferred: Indicative county-level forecast, not site-specific flood depth or extent · Five-day horizon only · Intended to complement, not replace, the NRW Flood Warning Service · Entry licence text is truncated; the page licence field reads 'Not set' · Web service endpoint details and formats are not documented in the supplied DOCS

Licence: ["There are no access restrictions on this data. NRW may release, publish or disseminate it freely.", "\u00a9 CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is
Authentication: Unknown — review source docs
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 16/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (data.gov.uk)