prospectus to download,view and run Grib file weather forecasts.These are freely available on the internet and are highly compressed so can well be downloaded over slow internet links.Will also generate emails to download custom territory forecasts from Saildocs.com The program includes utilities to decompress and put together grib files and to extract specific areas from large files.Passage plans can also be position up and displayed on the forecasts,showing the expected boat role at the time of the forecast