Fishing Intelligencefor the Pacific Northwest
Consolidate USGS water conditions, NOAA weather, and tide data into one privacy-first dashboard. Keep your catch logs private. Fish smarter.
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Everything you need, all in one place
Stop juggling multiple websites and apps. Thalweg brings together the data sources Pacific Northwest anglers actually use.
Real-Time Water Conditions
Live USGS data for flow rates, turbidity, water temperature, and gage height across Pacific Northwest rivers.
Weather Intelligence
NOAA-powered forecasts with barometric pressure trends, precipitation timing, and conditions that affect fish behavior.
Privacy-First Catch Logging
Your catch data stays yours. Row Level Security ensures only you can access your fishing logs.
Interactive Maps
MapLibre GL-powered maps with PMTiles for offline-capable navigation to your favorite spots.
Tide Predictions
NOAA CO-OPS tide data for coastal and tidal river fishing with accurate high/low predictions.
Species Database
Comprehensive Pacific Northwest species information including regulations and seasonal patterns.
One dashboard vs. scattered data
See how Thalweg simplifies your pre-trip research compared to checking multiple government websites.
| Feature | Thalweg | Scattered Sources |
|---|---|---|
| Consolidated data dashboard | — | |
| Privacy-protected catch logs | — | |
| Real-time USGS water data | Separate site | |
| NOAA weather & tides | Multiple sites | |
| Offline-capable maps | — | |
| Environmental snapshots | — | |
| Free to use |
Keep secret spots secret
Your catch logs are protected by Row Level Security at the database level. Not even our team can access your personal fishing data.
- Database-level encryption with Row Level Security
- No social features or public leaderboards
- Your data is never sold or shared
- Export or delete your data anytime
“The Locker”
Your private catch archive
Trusted by Pacific Northwest anglers
Hear from beta testers who are already using Thalweg to plan their fishing trips.
“Finally, one place to check conditions before heading out. The privacy features mean I don't have to worry about sharing my spots.”
Pacific Northwest Steelheader
Beta Tester
“The consolidated dashboard saves me from checking five different websites. Weather, water, and tides in one view.”
Coastal Salmon Angler
Early Adopter
“Love that my catch logs are truly private. The environmental snapshot feature helps me understand what conditions work best.”
Trout Enthusiast
Beta Tester
Get notified when mobile apps launch
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Ready to fish smarter?
Join Pacific Northwest anglers who trust Thalweg for real-time conditions and private catch logging.
Free to use. No credit card required.