| 八ッ場ダム | 05/15 |
| 流入量(m3/s) | |
| 12時間履歴 | ||
| 04:00 | 8.94 | ▼ |
| 03:00 | 12.82 | - |
| 02:00 | 12.82 | ▲ |
| 01:00 | 12.80 | ▼ |
| 00:00 | 12.81 | ▼ |
| 23:00 | 12.82 | ▼ |
| 22:00 | 14.36 | ▲ |
| 21:00 | 11.27 | ▼ |
| 20:00 | 12.81 | ▼ |
| 19:00 | 12.82 | ▲ |
| 18:00 | 9.72 | ▼ |
| 17:00 | 15.12 | ▼ |
| 2時間履歴(10分) | ||
| 04:10 | 10.49 | ▲ |
| 04:00 | 8.94 | ▼ |
| 03:50 | 12.82 | ▲ |
| 03:40 | 7.38 | ▼ |
| 03:30 | 12.82 | ▲ |
| 03:20 | 12.04 | ▲ |
| 03:10 | 7.38 | ▼ |
| 03:00 | 12.82 | ▲ |
| 02:50 | 9.72 | ▼ |
| 02:40 | 10.49 | ▼ |
| 02:30 | 12.83 | ▲ |
| 02:20 | 8.17 | ▼ |