Powerboat Routing Set Up & Use

Fuel Optimised Routing using Wind, Waves and Currents for Powerboats

Matt Crockett avatar
Written by Matt Crockett
Updated over a week ago

Power Boat routing is a new weather routing and departure planning feature available through the PredictWind Forecast website https://forecast.predictwind.com/ and the App for PredictWind subscribers with a Standard or Professional subscription level.

To review your subscription and upgrade if required, please click here: https://forecast.predictwind.com/register/change/package

What is Power Routing?

Power Routing provides a recommended route between waypoints from your set start time for each available weather forecast model based on your boat's parameters and routing preferences.

The Power Boat Routing algorithm performs billions of calculations to find the most fuel-efficient or comfortable route for your boat to motor a given route. The algorithm considers the boat's drag due to windage and the drag due to wave conditions. The routing uses the world's most comprehensive ocean current and tidal currents to find the optimal route. The Router will also enable you to view the Roll, Vertical accelerations and Slamming Incidence your boat will likely experience through the route.

How to set up Powerboat Routing

Setting up the Powerboat Routing can be done on the PredictWind Website at https://forecast.predictwind.com/atlas/powerRouter/# or in the PredictWind App; once set up, all the PredictWind Apps will use these settings saved on your account.

Powerboat Routing feature walkthrough video

To set up Powerboat Routing:

  • Open the PredictWind App.

  • Under Weather Routing tap Power Routing.

  • Tap the settings cog to open Power Routing Preferences.

  • Tap Power Settings.

  • Type in the following parameters for your vessel:

    • Height (waterline to top of wheelhouse, metres)

    • Economic boat speed (knots).

    • Economic RPM.

    • Economic fuel consumption (Litres/hour).

Boat Polar and Dimensions

  • Next, tap and add your Boat Polar and Dimensions in each field:

The router will use these supplied dimensions to alter the performance of your boat based on the influence of wind and wave conditions.

Route Defaults, Tidal & Ocean Currents

Next, set the Depth Avoidance; this will use a depth contour to avoid water shallower than the depth you specify. This is an important setting. If you find a route can't be calculated, or an odd route is suggested, please check this setting is accurate for your boat or try adjusting it to a lower setting. We recommend using the lowest setting that is safe for your boat.

Select the Ocean Currents Model you wish to use in the route.

Route Optimization Selection

Next, choose to optimise for fuel efficiency or comfort.

If you select Comfort, you must specify the additional conditions you wish the router to avoid. The route will still try to optimise for fuel efficiency but will avoid the specified conditions.

These are also critical settings. If you find a route can't be calculated or an odd route is suggested, please adjust these settings upwards to increase the range of conditions available for the optimized route to follow. We recommend using the defaults or higher settings if you're comfortable with those.

Run a Power route

Now your boat parameters, dimensions and routing preferences are configured, select the Power Routing tab. Drag and drop the green Start Waypoint and the red Finish Waypoint to your desired locations.

Routing Options

You may also position these using GPS coordinates by clicking Edit on the waypoint icon to reveal the Latitude/Longitude of our start & finish positions for editing. You can also add port and starboard rounding waypoints if desired. Please make sure all your waypoints are well in the water.


To add a Boundary:

  • Tap on the Routing Options icon.

  • Tap on Boundaries, then Create Boundary.

  • Tap on the map where you want to add a boundary and add sufficient points to make it a closed shape. Once you have the points on the map, you can move each point and add a lat/long if you wish to be specific.

  • Tap X to exit the Boundary setting.

  • To delete the boundary, tap the X beside it or disable it.

Run a Powerboat Route

You can now calculate your powerboat route; click the Download button. Your route will be calculated using your Powerboat parameters and show six routes related to the six weather models, waves and currents.

When you click on the weather model from the bottom right, a control panel will pop out; you can change the display here.

Forecast Options

  • ECMWF is Black

  • UKMO is Yellow

  • Spire is Orange

  • PWG is blue

  • PWE is Red

  • GFS is Green

Display Controls

These include map display types:

  • Streamlines

  • Wind barbs with colour contours

  • Wind arrows with colour contours

Display Parameters

Parameter selections which you can select here include:

  • Wind

  • Currents

  • Rain

  • Cloud

  • Air temperature

  • Gust

  • Cape

  • Wave

The animation play speed is also adjustable in this pop-out.

Route Display & Use

Wind Maps

The displayed wind maps relate to that model and the associated route. For example, selecting the PWE model corresponds to the red track, and the boat is displayed on the active route.

You can turn off one or more of the displayed routes by clicking on toggle routes and clicking on the tick box to turn on or off. Click x to close.

Animate the route

Press the play button or control the display with the time slider ball or the forward and back arrows.

By tapping on any point on a Powerboat route, we get details for that point on the route.

Routing Tables

At the top of the screen, click on Tables. The tables include detailed data about your routes for all models. We have Graphs with many important details along our route, including the Roll, Vertical Acceleration and Boat Slamming.

Tables include Wind, Summary, Route, Wave, Atmosphere And Current.

We also have the Export function, which allows you to export the weather route in several digital formats for Navigation software.

Click on the Map button to go back to the routing Map.

Congratulations! You are now ready to use the PredictWind Powerboat routing!

Related Articles

Please review the articles below for more information available in Powerboat Routing Help about how to set up and use Powerboat Routing:

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