The Great Circle

The Great Circle pioneers the development, distribution and compression of weather data. With a team of sailors and meteorologists, Great Circle has created a reference tool: Squid.

Squid joins forecasts data (Grib, ...) and observations data (Images Sat, ...) into a single software. Sailors and race directions benefit from a new rational and factual approach to weather preparations and routing.

Whether you are an occasional cruiser, an experienced sailor or a Transat competitor, Squid fits all your needs with different subscriptions packages, from one week to one year. Runs on Windows, and iOS Android.

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