The main objective of this course is to explain Offshore, as well as Coastal weather for sailors and powerboaters, beginning to expert. Perhaps most importantly, it will explain how to interpret weather maps, and how to use onboard routing software to get GRIB files and run optimized routes. The course also shows how to use mid-level weather maps (500 mb) to forecast the movements of the weather systems reported on a surface-analysis map. A handout will be given, which provides a list of useful sources of weather information. No test is given and no certification issued.
Topics covered include:
- Weather Forecasting History
- What Causes Marine Weather
- Synoptic Weather – Highs, Lows, Fronts and Currents
- How Local Conditions Affect Weather
- How to Read Weather Maps
- Gathering Weather Data
- Using Clouds to predict weather
- Using Grib Files to predict weather
- Weather Routing
- Weather and Racing
- Keeping a Weather Log
- Attendees are encouraged to bring their laptops and try out weather websites.
The course will be instructed by John Jourdane, world renowned navigator, with over 300,000 miles experience, including 53 Pacific crossings, 12 Atlantic crossings and 3 circumnavigations including 2 Whitbread Round the World Races. Author of 2 books: “Icebergs, Port and Starboard” and “Sailing With Scoundrels and Kings.”