Standard marine weather (GRIB) forecasts are not very reliable because they come from satellite imaging, not from actual weather measurements. They may have been made hours ago, and assume that the wind is the same everywhere within giant cells (which is not true).

The wireless SailTimer Wind Instrument™ is the first wind sensor with crowdsourcing for better marine weather and navigation. The SailTimer Air Link™ can crowdsource from wired or wireless anemometers. You can register here for the apps that use either of those.

Note: The SailTimer™ app can display weather maps, to help plan your route. Registration for that app is in transition, and can only be done from within that app.

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