| 15 | 0300 SUN AUG 17 | Tropical Depression Iselle | 18.6N | 112.7W | NW | 3 (3) | 1008 (29.77) | 35 (30) |
| 14 | 2100 SAT AUG 16 | Tropical Depression Iselle | 18.4N | 112.6W | WSW | 3 (3) | 1006 (29.71) | 35 (30) |
| 13 | 1500 SAT AUG 16 | Tropical Depression Iselle | 18.6N | 112.3W | WNW | 6 (5) | 1006 (29.71) | 35 (30) |
| 12 | 0900 SAT AUG 16 | Tropical Depression Iselle | 18.7N | 111.6W | NNW | 5 (4) | 1006 (29.71) | 35 (30) |
| 11 | 0300 SAT AUG 16 | Tropical Depression Iselle | 18.2N | 111.5W | NW | 2 (2) | 1006 (29.71) | 35 (30) |
| 10 | 2100 FRI AUG 15 | Tropical Storm Iselle | 17.6N | 111.2W | WNW | (0) | 1004 (29.65) | 40 (35) |
| 9 | 1500 FRI AUG 15 | Tropical Storm Iselle | 17.7N | 112.4W | WNW | 5 (4) | 1004 (29.65) | 40 (35) |
| 8 | 0900 FRI AUG 15 | Tropical Storm Iselle | 17.7N | 111.7W | W | 8 (7) | 1004 (29.65) | 40 (35) |
| 7 | 0300 FRI AUG 15 | Tropical Storm Iselle | 17.7N | 111.1W | W | 9 (8) | 1002 (29.59) | 45 (39) |
| 6 | 2100 THU AUG 14 | Tropical Storm Iselle | 17.8N | 110.2W | WNW | 8 (7) | 1002 (29.59) | 45 (39) |
| 5 | 1500 THU AUG 14 | Tropical Storm Iselle | 17.8N | 109.4W | NW | 8 (7) | 999 (29.5) | 50 (43) |
| 4 | 0900 THU AUG 14 | Tropical Storm Iselle | 17.6N | 108.6W | WNW | 10 (9) | 1002 (29.59) | 45 (39) |
| 3 | 0300 THU AUG 14 | Tropical Storm Iselle | 17.4N | 107.7W | WNW | 12 (10) | 1003 (29.62) | 40 (35) |
| 2 | 2100 WED AUG 13 | Tropical Storm Iselle | 16.6N | 106.7W | WNW | 10 (9) | 1003 (29.62) | 40 (35) |
| 1 | 1500 WED AUG 13 | Tropical Depression Ten-E | 16.3N | 105.8W | W | 10 (9) | 1005 (29.68) | 35 (30) |