Date: 11-12 SEP 1997
Tropical Depression 21W
ADV  LAT    LON      TIME     WIND  PR  STAT
  1  11.70  170.70 09/11/18Z   25     - TROPICAL DEPRESSION
  2  11.80  170.40 09/12/00Z   25     - TROPICAL DEPRESSION
  3  12.90  168.90 09/12/06Z   30     - TROPICAL DEPRESSION
  4  14.10  167.80 09/12/12Z   30     - TROPICAL DEPRESSION