Satellite SST, Chlorophyll, and Depth Chart for PNW Waters

A free ocean conditions map built for PNW tuna anglers.

Open the Map →

What is this?

What is the PNW Tuna Map?

The PNW Tuna Map is a real-time ocean conditions map for albacore tuna anglers fishing off Washington, Oregon, and Northern California. It pulls satellite-derived sea surface temperature, chlorophyll concentration, and bathymetric depth data into a single layered view. The kind of intel that used to require a paid subscription to multiple services.

It was built by a PNW tuna angler, for PNW tuna anglers. We don't require payment to use it. Voluntary support from anglers keeps the satellite data fees and server costs covered.

Whether you're looking for the temperature break, working a chlorophyll edge, or just trying to figure out where to start your day, the map gives you the ocean-condition picture in one place.

What you can see

How to use it

  1. Open the map

    Head to pnwfishing.net/sst-chloro-map. Create a free account on first visit. That's what lets you save spots and presets across sessions.

  2. Pick a date and layers

    Choose the most recent date with available data (usually 1-3 days behind today). Turn on the layers you want: SST, chlorophyll, depth, substrate. In any combination.

  3. Dial in the color ranges

    Use the sliders on each legend to narrow the color range to the window that matters to you. Save your favorite ranges as presets so you don't have to set them up again.

  4. Mark your spots

    Right-click (long-press on mobile) anywhere on the map to drop a pin. Name it, tag a species, and it'll be there next time you log in.

See it in action

Support the map

The PNW Tuna Map stays running thanks to anglers who chip in. We don't require payment to use it , but server costs and time put into building it are real. If it's helped you find fish, please consider chipping in to keep it going.

Chip in →

Every contribution goes toward server hosting, satellite data fees, and ongoing development.