Privacy

Last updated November 3, 2026. HydroSentinel has no accounts and collects no personal information to work.

What we store

River and weather data from public sources (GloFAS via Open-Meteo, GDACS, the UK Environment Agency, Open-Meteo rainfall). It contains no personal data.
The latest flood-watch briefing written by our AI agent from that public data, so the dashboard can show it after a restart.
Standard server logs kept by our hosting providers (Vercel and Render), such as request times and IP addresses, for security and reliability. We do not log the text of questions or the content of photos.

What goes to Meta's models

When you use Ask, your question and the public river data are sent to Muse Spark through the Meta Model API to write an answer. We don't keep the question.
When you use the photo check, the photo is resized and sent to SAM 3.1 for analysis. We don't store it. Avoid photos that show people's faces or house numbers.
Posters are generated by Muse Image from a fixed description of the alert level; nothing you type is sent.

What your browser keeps

Your light or dark theme choice and whether you dismissed the “how to read this” tip (local storage).
The admin key, only if you enter one, until you close the tab (session storage).
A copy of recently loaded public data, so the app still opens when your signal drops (service worker cache).

Your rights

For users in the Philippines, the Data Privacy Act of 2012 (Republic Act No. 10173) gives you the right to be informed, to access, to object, to correct and to erase personal data. International users may have similar rights under laws such as the GDPR. Because we don't collect personal data, there is usually nothing to access or delete; if you have a concern, open an issue on GitHub.

Not an official warning service

HydroSentinel combines public data and AI to help people prepare. It does not replace official warnings. Always follow PAGASA, NDRRMC and your local disaster risk reduction and management office.