Weather Forecasting & Routing Workshop

  • Instructor:
    Mark Thornton
  • Level:
    Advanced 301
  • Date:
    Thursday October 10, 2024
  • Time:
    8:15 - 3:45

Cruisers who have taken the two-day Master Marine Weather class often express an interest in additional hands-on training. The Advanced Weather Forecasting & Routing Workshop devotes a full day to interpreting weather maps, developing marine forecasts, analyzing weather windows, and preparing computer-generated weather routings. (Squid X, a free forecasting and routing software program, will be used during the Workshop.) Hands-on exercises are a great way to build confidence and improve your forecasting skills.

The Workshop is designed for cruisers who have taken a previous weather seminar (see prerequisites) and possess beginning to intermediate forecasting skills . The Workshop will use examples and hands-on exercises to cover the following topics:

  • Interpreting and working surface weather maps
  • Forecasting the development and movement of low pressure systems
  • Forecasting wind, waves, and ocean currents
  • Selecting weather windows
  • Understanding weather forecast models
  • Weather forecasting with grib data
  • Weather routing and analysis with grib data

Class Prerequisites

  • Completion of the Master Marine Weather class offered at Cruisers University within the past two years (or similar experience).
  • A laptop (Windows / Mac) with wi-fi is required for this hands-on class. Those attending with another person may share a laptop. (Note: A tablet will not allow you to complete most of the hands-on forecasting and routing exercises.)
  • Students will need to install Squid X Sailing Software (the software is free and available in Windows and Mac versions) on their laptop prior to arriving at the workshop.
  • Students will need to create an account with Squid Sailing Software and purchase a subscription for their HiRes North American plan for 1 month (approximately $11.00) prior to arriving at the workshop.
  • Completion of pre-workshop materials.
  • Attendance at a pre-workshop Zoom meeting.
  • Class size is limited to 10 people.


Do you have questions about the Workshop? If so, don’t hesitate to contact Mark Thornton at