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Mastering the Offshore App (PredictWind Masterclass 5/5)
March 10, 2026 · 7 min · 5K views
What this video covers
James Evenson manages offshore weather data by prioritizing bandwidth efficiency and selective downloading within the PredictWind Offshore app. He recommends installing the application on all devices before departure and configuring account credentials while still at the dock to avoid connectivity errors at sea.▶ 1:37 His standard workflow involves downloading a large, low-resolution GRIB file once daily to monitor ocean-basin patterns, followed by smaller, high-resolution GRIBs every 9 to 12 hours for immediate local conditions.▶ 2:28 When requesting weather routing, he monitors the app’s blue download-size bar to manage data consumption, noting that cloud-based servers incorporate ocean currents and tidal data into routes even if the user does not download the visual ocean grids.▶ 3:12 He prioritizes GMDSS and AIS data for their high value and low bandwidth requirements.▶ 3:47 While Starlink provides high-speed access, he maintains an Iridium device in a ditch bag as essential emergency communication gear.▶ 5:54 Effective offshore planning requires iterative reassessment of routing as conditions evolve rather than seeking perfect data.
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