8 files, in Postscript, unfortunately. In text form. Federal Meteorological Handbook No. WMO Publications List of available WMO manuals and references. Draft FTP Server Directory and File Naming Standards Proposed standard for names of meteorological data files on FTP servers.
Tracks changes in codes and headings.
Ultimately will point to NCEP Manual 388. Describes two-line header, first line of which is WMO abbreviated header. References WMO publications. A current version, updated weekly, is available in the same directory. What's new on NIC server Descriptions of updates to codes such as GRIB and BUFR decoders, WAFS thickener, and documentation.