SFEFIL

     SFEFIL is the name of the surface edit file to be used to update a 
     surface file.

     SFEFIL is a text file which may be created using the program SFLIST 
     with F as an output device.  A text editor may be used to create or 
     change the surface edit file.
  
     The parameters to be edited must be specified at the beginning of 
     the surface edit file.  For example:
  
		PARM = TMPF;DWPF
  
     Parameters that have character values, such as WTHR, cannot be edited.
     Instead, the numeric value must be used, e.g., WSYM in the case of 
     WTHR.  All the parameters which are to be edited must already exist 
     in the surface data file, since no parameter transformations will be 
     done.  Station information, such as latitude, longitude and elevation, 
     cannot be changed with SFEFIL.  Use GEMPAK program, SFSTNS, to update 
     station information in a surface file.
      
     The data follow the parameter list.  

     Stations and times which do not already exist in the surface data file 
     will be added.