FloodWatch Beta — data may be periodically unavailable.
FloodWatch
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FloodWatch uses official flood and river level data from the Environment Agency (England), Natural Resources Wales, and SEPA (Scotland). Contains public sector information licensed under the Open Government Licence v3.0.

For situational awareness only.

Trust & Methodology

Transparency about what FloodWatch does, where our data comes from, and what we don't do.

What FloodWatch Is

FloodWatch is a visibility and aggregation tool that displays official flood warnings and river level readings from the Environment Agency (England), Natural Resources Wales, and SEPA (Scotland). We provide a portfolio view so you can monitor multiple sites in one place.

Think of it as a dashboard that collects and presents official data — we don't generate our own flood predictions or safety advice.

Data Sources & Third-Party Services

  • Environment Agency (England)
    Flood warnings, severity levels, affected areas, and river level readings for England.
  • Natural Resources Wales (NRW)
    Flood warnings, river levels, and rainfall data for Wales.
  • SEPA (Scotland)
    Hydrometric data including river levels and flood alerts for Scotland.
  • Postcodes.io
    Geocoding UK postcodes to latitude/longitude for mapping.
  • OpenStreetMap
    Base map tiles for the portfolio visualisation.
  • Stripe
    Payment processing for subscriptions. All payment card details are handled securely by Stripe — we never see or store your card numbers.
  • OpenAI
    AI-enhanced portfolio briefs. When you generate an AI brief, your site names, postcodes, and current flood/river status are sent to OpenAI for summarisation. We do not permanently store AI-generated content.
  • Google
    Optional OAuth sign-in. If you sign in with Google, we receive your email address and name from your Google account.

Refresh Cadence

Flood warnings: Fetched every 5 minutes from EA, NRW, and SEPA.

River level readings: Fetched every 15 minutes; source data typically updates every 15-30 minutes at the station.

Timestamps: Data points show when the source agency last updated the reading and when we fetched it.

Limitations

  • Not a forecast: We display current warnings, not predictions of future flooding.
  • GB coverage: England (Environment Agency), Wales (NRW), and Scotland (SEPA). Northern Ireland data is not yet available.
  • Not safety advice: Always refer to official EA guidance and emergency services for safety decisions.
  • Data latency: There may be delays between real-world events and API updates.