PredictWind Help Center

How to Calculate a Departure Plan

The Departure Planning tool is the perfect tool for yachts and powerboats to decide which day to depart on a trip. It is designed for trips as short as 15 Nm or for long offshore passages of 9 days or more.  Using the Weather Routing algorithm, the Departure Planning Tool will perform an optimum route for departing on Days 1 to Day 4. A summary table is provided so you can quickly compare the differences for leaving in the next 4 days.

Departure Planning preferences and route settings can be set from the settings wheel in the top right corner of the Departure Planning page. 

To begin your departure plan, select ‘Departure Planning’ under the main menu.

Start Time

The start time is the time that you intend to depart on your voyage, but you will be comparing the four days after that. 

Start Time Zone

Please click on the clock icon and select the timezone for your Departure Plan. Generally this is the time zone for the start of the trip, but you can select any time zone you prefer. The time displayed is corrected for daylight savings using the most recent forecast location you have selected.

Plan Departure

Click and drag the start (green) waypoint and the destination (red) waypoint for the desired trip. Please make sure your start and destination points are in the water, and not on the land. Alternatively, you can manually adjust the waypoint by lat/long or place name using the Set Waypoints box - click on the icon with the tear drop and two horizontal lines (top right of the screen).

  • You can also add waypoints along the Departure Plan. Simply click on the ‘plus’ (+) button next to the start/other waypoints. Waypoints should only be added if absolutely necessary as they constrain the route to go to the waypoints. The land avoidance (in Standard and Professional Accounts) will keep the boat clear of land.
  • The waypoints appear as white dots (near the destination waypoint), and can be dragged to the desired position, or alternatively you can enter the Lat/Long position or search for closest city. Please remember to keep all waypoints in the water.
  • When your waypoints have been set, click ‘Plan Departure’ to determine which day it would be best to leave for your next trip.
  • The optimal route is calculated between the start and destination points by using a computational mesh between these points. If the destination point is in a bay, you may need to extend the mesh area by adding another waypoint.

Note: The objective is to use the minimum amount of waypoints so the algorithm is free to find the optimal path.

 

How to use Departure Planning Results

The table below the map shows the weather information and track information for both forecasts and allows you to quickly compare 4 trips for departing from Day 1 to Day 4.

 

Please click here for more How to use Departure Planning Results.

 

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