PROCESSING MRMS mxcref in gridbox
CREF           1    10.0  -999.0 - mrms variable to process, iswitch (1=process, 0=not), vscale, rmiss_unscaled
     6.9870 - lower-left corner latitude (deg north) of output grid
  -147.0640 - lower-left corner longitude (deg east) of output grid
 11906.2500 - grid mesh (m) true at standard latitude
  -105.0000 - standard longitude (deg east) of output grid
    60.0000 - standard latitude (deg north) of output grid
         10 - nominal mesh length
       1089 - number of x-coordinate points of output grid
        641 - number of y-coordinate points of output grid
          5 - grid map projection (3 = lambert; 5 = polar stereographic)
          1 - gridbox positioning (0 = center; 1 = lower left)
          1 - number of input files (tiles)
MergedReflectivityQComposite_YYYYMMDD_HHMI.nc
 707800004 0000000MI 000000000 000000000   2 1     ! id, output ctrl, iscald
 30    dummy
 31    OUTPUT TDLPACK FILE
 99    dummy2