| 八ッ場ダム | 05/18 |
| 総放流量(m3/s) | |
| 12時間履歴 | ||
| 23:00 | 35.83 | - |
| 22:00 | 35.83 | ▲ |
| 21:00 | 35.82 | ▼ |
| 20:00 | 35.83 | ▼ |
| 19:00 | 35.86 | - |
| 18:00 | 35.86 | ▲ |
| 17:00 | 35.82 | ▼ |
| 16:00 | 35.84 | - |
| 15:00 | 35.84 | - |
| 14:00 | 35.84 | ▼ |
| 13:00 | 35.85 | - |
| 12:00 | 35.85 | ▲ |
| 2時間履歴(10分) | ||
| 23:30 | 35.85 | ▲ |
| 23:20 | 35.83 | ▼ |
| 23:10 | 35.84 | ▲ |
| 23:00 | 35.83 | ▲ |
| 22:50 | 35.82 | ▼ |
| 22:40 | 35.86 | ▲ |
| 22:30 | 35.85 | ▲ |
| 22:20 | 35.84 | ▲ |
| 22:10 | 35.83 | - |
| 22:00 | 35.83 | ▲ |
| 21:50 | 35.82 | ▼ |
| 21:40 | 35.83 | ▼ |