DCXMOS

    DCXMOS decodes Global Forecast System - Extended (GFSX) 
    Model Output Statistics data from a real-time data feed,
    or from a file fed to the program through standard input, and 
    writes the data to a GEMPAK surface file.  The program is controlled
    by inputs to the command line.

    The inputs are program options and the output file name or template.
    For example, for real-time data feeds:
    
	dcxmos [options] output_file

    If running the program interactively with standard input, the -c
    option must be used.  The input file must also be specified.
    For example:

	dcxmos -c YYMMDD/HHNN [other_options] output_file < input_file
    
    A template may be used to specify the output file name.  The file
    name template uses the date and time of the bulletin or report
    to replace the following characters.

	YYYY or YY	Year with or without the century
	MM		Month number
	DD		Day
	HH		Hour
	NN		Minute

    Note that for data from Hawaii (WMO bulletin header FEPA20),
    parameter PP12 (probability of precipitation fcst in a 12-hr
    period) is valid for periods of 18-30, 30-42, ..., 186-198 hours
    after 0000 or 1200 UTC.  For all other sites, PP12 is valid for
    periods of 12-24, 24-36, ..., 180-192 hours after 0000 or 1200 UTC.