$ WAVEWATCH III Grid output post-processing (GrADS)
$ -------------------------------------------------
  19680606 000000 43200. 25
$
  F F F F F  T F F T F  F F F F F  F F F F F  F F F F F F  F F F F F  F
$
  N
  HS  T01  DIR SPR
$
  1 193 1 93  T T