Preparing Your Chicago-Mac Forecast: A Workshop for Sailors

Registration Link Coming Soon!

Workshop Overview

Long-distance sailing and weather forecasting are inseparable. Experienced Chicago-Mac sailors understand that developing a detailed weather forecast and monitoring its evolution on the racecourse is an important strategic and safety aspect of participating in this summer classic. Misjudging the wind forecast can quickly send you to the back of your fleet, while failing to properly assess the risk for severe weather can unnecessarily jeopardize the safety of the crew.

The workshop is designed for Chicago-Mac and other long-distance sailors interested in improving their marine weather forecasting and management skills.

You will develop the following skills at the workshop:

  • How to decode the confusing symbols and meteorological shorthand on forecast graphics.
  • How to predict the development and movement of low pressure systems and their accompanying frontal boundaries.
  • Why the wind behaves the way it does and how to prepare a detailed wind forecast.
  • How to prepare a detailed wave height forecast.
  • How to forecast the potential and nature of severe weather.
  • The terminology used by the National Weather Service during hazardous and severe weather events.
  • How to use Doppler weather radar to help you avoid a hair-raising encounter with thunderstorms.
  • Where to find forecast graphics and a strategy for preparing a multi-day marine forecast.
  • The advantages and challenges of using a weather routing program.

The workshop combines classroom instruction, case studies, and hands-on forecasting exercises to create an engaging learning experience.

Click here for a detailed outline of the workshop.

Chicago Boat Show

McCormick Place-South Building

Chicago, IL

Sunday, January 13, 2018

9:00 am to 5:00 pm

Details coming soon.

Registration: Registration link coming soon.

Please send questions regarding the seminar to Mark Thornton at Please click here to view the speaker's biography.