| 12 | 1500 THU AUG 27 | Tropical Depression Ignacio | 25.4N | 127.3W | NW | 14 (12) | 1006 (29.71) | 34 (30) |
| 11 | 0900 THU AUG 27 | Tropical Depression Ignacio | 24.6N | 126.6W | NW | 14 (12) | 1005 (29.68) | 35 (30) |
| 10 | 0300 THU AUG 27 | Tropical Storm Ignacio | 23.4N | 125.4W | NW | 14 (12) | 1003 (29.62) | 40 (35) |
| 9 | 2100 WED AUG 26 | Tropical Storm Ignacio | 22.1N | 124.5W | NW | 12 (10) | 1002 (29.59) | 45 (39) |
| 8 | 1500 WED AUG 26 | Tropical Storm Ignacio | 21.6N | 124W | NW | 14 (12) | 1002 (29.59) | 45 (39) |
| 7 | 0900 WED AUG 26 | Tropical Storm Ignacio | 21.1N | 122.5W | NW | 14 (12) | 1000 (29.53) | 50 (43) |
| 6 | 0300 WED AUG 26 | Tropical Storm Ignacio | 20.4N | 121.5W | NW | 15 (13) | 1000 (29.53) | 50 (43) |
| 5 | 2100 TUE AUG 25 | Tropical Storm Ignacio | 19.4N | 120.3W | WNW | 13 (11) | 1000 (29.53) | 50 (43) |
| 4 | 1500 TUE AUG 25 | Tropical Storm Ignacio | 18.6N | 119.3W | WNW | 12 (10) | 1000 (29.53) | 50 (43) |
| 3 | 0900 TUE AUG 25 | Tropical Storm Ignacio | 18.1N | 118.5W | WNW | 12 (10) | 1004 (29.65) | 40 (35) |
| 2 | 0300 TUE AUG 25 | Tropical Storm Ignacio | 17N | 117.8W | WNW | 10 (9) | 1004 (29.65) | 40 (35) |
| 1 | 2100 MON AUG 24 | Tropical Depression Twelve-E | 16.3N | 117.2W | WNW | 10 (9) | 1005 (29.68) | 35 (30) |