Weather

Weather Forecasting Apps

Not All Weather Apps Are Created Equal. Learn Which Ones You Can Trust.

Marine weather apps are everywhere. But which ones actually deliver reliable, actionable information for Great Lakes boaters? In this engaging webinar, veteran forecaster and GLCCSchool instructor Mark Thornton demystifies the world of weather apps, helping you navigate the strengths, limitations, and best uses of popular tools like Squid Sailing, PredictWind, SailFlow, Windy, GRLevel3, and RadarScope.

You’ll also gain insight into the data sources behind these apps and learn how to evaluate their accuracy and relevance for your cruising needs. Whether you're planning a weekend sail or a longer passage, this class will help you build a smarter, safer weather strategy using the right digital tools.

Perfect for cruisers, racers, and anyone who wants to make informed decisions on the water.

Meet The Instructor

Mark Thornton
Mark Thornton is widely recognized as one of the leading marine weather authorities on the Great Lakes. With nearly 30 years of sailing experience and a deep passion for weather science, Mark brings a unique blend of practical knowledge and academic expertise to his teaching.

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