The following link will take you to the Saildocs site.
Saildocs provides custom grib weather-data files per request from data downloaded from NOAA/NCEP and other sources.
Additionally, Saildocs provides document-retrieval for the delivery of text-based Internet documents either on request or by subscription.
Saildocs is supported by the Sailmail Association and can be used by anyone who agrees to the terms and conditions (below).