Alert | N° | Date (UTC) | Max Winds (km/h) | Population in Tropical Storm or higher | Population in Cat 1. or higher | Countries |
| 1 | 15 Aug 2018 12:00 | 176 | 3 thousand | 2 thousand | |
| 2 | 15 Aug 2018 18:00 | 157 | 2.7 million | Few people | Japan |
| 3 | 16 Aug 2018 00:00 | 167 | 15.8 million | 10 thousand | Japan |
| 4 | 16 Aug 2018 06:00 | 213 | 940 thousand | No people | Japan |
| 5 | 16 Aug 2018 12:00 | 213 | 3.3 million | No people | Japan |
| 6 | 16 Aug 2018 18:00 | 213 | 14.3 million | 330 thousand | Japan |
| 7 | 17 Aug 2018 00:00 | 194 | 16 million | 3 million | Japan |
| 8 | 17 Aug 2018 06:00 | 185 | 36.2 million | 12.1 million | Japan |
| 9 | 17 Aug 2018 12:00 | 194 | 41.6 million | 14.2 million | Japan |
| 10 | 17 Aug 2018 18:00 | 194 | 44.1 million | 14 million | Japan |
| 11 | 18 Aug 2018 00:00 | 194 | 36.1 million | 8.9 million | Japan |
| 12 | 18 Aug 2018 06:00 | 185 | 53.4 million | 17.4 million | Japan, Korea, Republic of |
| 13 | 18 Aug 2018 12:00 | 185 | 68.7 million | 19 million | Japan, Korea, Republic of |
| 14 | 18 Aug 2018 18:00 | 185 | 78.6 million | 14.7 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 15 | 19 Aug 2018 00:00 | 111 | 95.2 million | 8.6 million | Japan, Korea, Republic of |
| 16 | 19 Aug 2018 06:00 | 157 | 98 million | 34.6 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 17 | 19 Aug 2018 12:00 | 148 | 97.9 million | 20.7 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 18 | 19 Aug 2018 18:00 | 139 | 108.4 million | 27.5 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of, China |
| 19 | 20 Aug 2018 00:00 | 120 | 118.4 million | 40 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of, China |
| 20 | 20 Aug 2018 06:00 | 120 | 97.6 million | 37.9 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of, China |
| 21 | 20 Aug 2018 12:00 | 167 | 109.5 million | 34.4 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 22 | 20 Aug 2018 18:00 | 139 | 97.8 million | 38.1 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 23 | 21 Aug 2018 00:00 | 139 | 95.2 million | 38.4 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 24 | 21 Aug 2018 06:00 | 130 | 101.6 million | 39.5 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 25 | 21 Aug 2018 12:00 | 102 | 86.8 million | 2.3 million | Japan, Korea, Republic of |
| 26 | 21 Aug 2018 18:00 | 120 | 94.7 million | 29.1 million | Japan, Korea, Republic of, Korea, Democratic People's Republic of |
| 27 | 22 Aug 2018 00:00 | 102 | 96.2 million | 1.1 million | Japan, Korea, Republic of |
| 28 | 22 Aug 2018 06:00 | 102 | 98.8 million | 3.1 million | Korea, Republic of, Japan |
| 29 | 22 Aug 2018 12:00 | 93 | 85.9 million | 20.6 million | Korea, Republic of, Japan |
| 30 | 22 Aug 2018 18:00 | 102 | 89.6 million | 4 million | Korea, Republic of, Japan |