SOUTH ATLANTIC WINDS: General circulation, the SE trade winds, the equatorial calms and the Intertropical Convergence Zone (ITCZ), the tropical calms and variable winds, the belt of low-pressure systems and their associated fronts with prevailing W winds, the pampero, tropical cyclones, and polar winds.
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When a sailboat is embarking on a long voyage, for example, crossing the Atlantic, having meteorological support on land is an additional guarantee that can contribute to safety. In this chapter, we’ll discuss some considerations regarding the information this support team analyzes and sends to the sailboat; and we’ll also watch some videos of a real-life case of this type of support.
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What do I need to perform weather routing calculations on a sailboat?, basic weather routing procedure (step by step), weather routing tools and final considerations.
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What is a GRIB weather file?, weather models that provide GRIB weather files, How to obtain GRIB weather on board? and considerations on the use of GRIB weather on board.
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Description of the analysis of weather on a sailboat, long term (Pilot Charts, publications, climatology), and short term (surface isobar maps and 24/48/72 hour forecasts, GRIB files, Passage Weather, weather warnings (GMDSS) and Weather Routing).
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