zyGrib - GRIB File Viewer
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Ventusky - Real-time weather mapping
Open Nautical Charts - Open Nautical Charts offers free seacharts for everybody.
Campbell Visual Weather - Campbell Visual Weather is weather forecasting software that is developed to provide reliable, real;-time weather data and printed reports in the absence of any technical problems related to programming or maintaining databases.
Ugrib - Our freeware application Ugrib allows instant and fully customizable access to global weather data.