Frequently Asked Questions

Thalweg is a privacy-first fishing intelligence platform for Pacific Northwest anglers. The current web app combines river conditions, weather, tides, biological data, a private Locker field journal, and Safety Check-In.

Thalweg is built for privacy-conscious anglers in Oregon and Washington who are tired of checking multiple government websites before every trip. Whether you fish for steelhead, salmon, trout, or bass, Thalweg brings all the environmental data you need into one dashboard.

Thalweg is being built as a paid product. Pricing and plan details are not finalized yet.

Thalweg is currently available as a web app that works in modern desktop and mobile browsers. Native iOS and Android apps are planned after the current web product stabilizes.

Thalweg (pronounced "TAL-veg") is a geographic term for the line of deepest points along a river channel. It represents the path where water flows fastest—and often where fish are found. We chose this name because it captures our focus on river conditions and fishing intelligence.

Your data is protected with account-level access controls and encryption. In practice:

• • Locker and Safety data are private to your account by default
• • Sharing is never public by default
• • All data is encrypted in transit and at rest

By default, no. Locker activity is private to your account. Streams & Drops are planned as explicit sharing tools, but they are not live yet and nothing is public by default.

No. Thalweg does not publish public profiles, public catch feeds, or public heatmaps. Any future sharing will remain explicit and scoped.

We do not sell your Locker or Safety data to advertisers or data brokers. We do use infrastructure providers such as Supabase and AWS to host and operate the service on our behalf. See the Privacy Policy for details.

Yes. You can export your account data and delete your account from the app. Deletion removes your associated Locker and Safety data and cannot be undone.

We aggregate data from trusted government agencies and open data providers:

• • USGS NWIS: Water flow, temperature, turbidity, gage height
• • NOAA / NWS / CO-OPS: Forecasts, barometric pressure, tides, currents, and alerts
• • FPC / DART / regional agencies: Fish passage, stocking, reports, and sport catch context
• • Open-Meteo / MapTiler: Weather visualization and map support

Water conditions from USGS are updated every 15 minutes. Weather forecasts are refreshed hourly. Tide predictions are loaded daily. The dashboard shows the last update time for each data source.

Live dashboard data still requires connectivity for fresh updates. Safety Check-In is being built with offline-first and low-bandwidth handling in mind, and fuller offline sync plus cached map tiles are planned for a later mobile phase.

Thalweg covers rivers and waters in Oregon and Washington where USGS and NOAA have monitoring stations. This includes major rivers (Columbia, Willamette, Deschutes, Skagit, Skykomish, etc.) as well as many smaller streams and coastal areas.

The Locker is Thalweg’s private field journal. It is designed for activities, catches, notes, observations, media, and environmental snapshots so you can record what actually happened on the water, not just successful catches.

Safety Check-In is a return-time trip timer. You set an expected return and check-in interval, add trusted contacts, and if a timer expires the system can escalate reminders. It is a preparedness feature, not an emergency rescue service.

Thalweg works on any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile devices. For the best experience, we recommend using the latest version of your browser with JavaScript enabled.

Bug reporting will be available when the app launches. We will provide multiple channels for reporting issues at that time.

No. Thalweg is a proprietary product and the application codebase is private.

If data appears outdated, it could be due to: (1) USGS or NOAA station outages, (2) your browser cache, or (3) temporary connectivity issues. Try refreshing the page. If the problem persists, check the station status on the USGS or NOAA websites.