waterNOAA CoastWatch Layer

Offshore Conditions Map Layer

See recent NOAA sea-surface temperature on your fishing map so you can compare water breaks, structure, waypoints, and routes before you run offshore.

Download for iOS View all features

Find useful water edges faster

Offshore Conditions adds a recent NOAA-backed sea-surface temperature overlay to Fish Fathom. Turn it on from Map Layers, adjust opacity, and read the water alongside relief shading, hard-bottom points, commercial tracks, and your saved fishing marks.

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    Recent SST overlay: View recent sea-surface temperature imagery over the same map you use for route and waypoint planning.
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    Adjustable opacity: Fade the layer up or down so temperature breaks do not hide structure, depth, or saved marks.
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    Viewed-tile cache: Previously viewed offshore tiles may remain visible during flaky connectivity and can be stale.
Fish Fathom map showing the Offshore Conditions sea-surface temperature layer with an example SST readout
Offshore Conditions overlays NOAA sea-surface temperature directly on the map.

Built for offshore trip planning

Use the layer as one planning signal, then combine it with local knowledge, weather, safety checks, and what you see on the water.

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Read temperature breaks

Compare warm and cool water edges with reefs, ledges, wrecks, and routes before committing fuel to a long run.

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Stack planning layers

Use SST alongside relief shading, bottom hardness, waypoints, and commercial track context.

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Inspect map context

Tap open water to bring up SST details for the coordinate you are evaluating.

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Designed for imperfect data

Source and age caveats help you understand when cloud gaps or older imagery may affect the read.

Fish Fathom Offshore Conditions context sheet showing an example NOAA SST sample with source caveats

Tap the map for source context

When the layer is active, tap open water to inspect the nearest available SST sample. Fish Fathom shows temperature in Fahrenheit and Celsius when a valid NOAA sample is available, and it keeps unavailable states, source attribution, and cloud-gap caveats visible when a point cannot be sampled.

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Temperature readout

Review Fahrenheit and Celsius values without leaving the map when a valid NOAA sample is available.

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Sample timing

Check the UTC sample time so you know the age of the source data.

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NOAA attribution

See the CoastWatch source and nearest grid coordinate for the sampled point.

How to use Offshore Conditions

A quick workflow for reading temperature edges without losing the rest of your trip-planning context.

1

Open Map Layers

Use the map layer control and enable Offshore Conditions under Fish Intel.

2

Tune opacity

Adjust the layer until temperature edges are visible while structure and saved marks remain readable.

3

Compare with structure

Look for temperature breaks near relief shading, bottom points, tracks, routes, or waypoints.

4

Tap for details

Inspect a point for SST, source timing, and data caveats before adding it to your plan.

NOAA-backed, with honest limits

Satellite SST is powerful, but it is not a guarantee. Cloud cover, source age, model/composite behavior, and fast-moving fronts can all affect what the layer shows. Fish Fathom keeps those caveats visible so the layer supports better planning decisions without pretending to replace seamanship.

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NOAA CoastWatch source

The first layer uses NOAA CoastWatch sea-surface temperature imagery exposed through Fish Fathom.

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Managed app access

Fish Fathom manages Offshore Conditions access through the app so the layer stays tied to the map workflow.

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Visible caveats

The app explains that cloud gaps, source age, and satellite limitations can affect the layer.

Offshore Conditions FAQ

What does Offshore Conditions show?

It shows a NOAA-backed sea-surface temperature overlay on the Fish Fathom map so offshore anglers can compare water temperature edges with fishing structure, routes, and saved spots.

Is this a fishing forecast?

No. Offshore Conditions is a map layer and context tool. It supports planning, but it does not guarantee fish, safe seas, or a successful trip.

Does the layer work without cell service?

The recent SST layer needs connectivity to fetch updated tiles. Previously viewed tiles may remain visible on-device during flaky offshore connectivity and can be stale.

Why might some areas have gaps?

Satellite SST can be affected by cloud cover, data age, and source availability. Fish Fathom surfaces caveats so users know when to treat a readout carefully.

Plan your next offshore run with better water context

Download Fish Fathom and add Offshore Conditions to your map workflow.

Download for iOS Download for Android