| 矢木沢ダム | 06/21 |
| 流入量(m3/s) | |
| 12時間履歴 | ||
| 19:00 | 35.34 | ▲ |
| 18:00 | 34.51 | ▼ |
| 17:00 | 35.37 | ▲ |
| 16:00 | 30.24 | ▲ |
| 15:00 | 22.88 | ▼ |
| 14:00 | 26.04 | ▲ |
| 13:00 | 25.39 | ▼ |
| 12:00 | 26.04 | - |
| 11:00 | 26.04 | - |
| 10:00 | 26.04 | ▲ |
| 09:00 | 24.09 | ▲ |
| 08:00 | 22.13 | ▲ |
| 2時間履歴(10分) | ||
| 19:50 | 34.95 | ▲ |
| 19:40 | 34.91 | ▲ |
| 19:30 | 32.26 | ▼ |
| 19:20 | 35.48 | ▲ |
| 19:10 | 34.13 | ▼ |
| 19:00 | 35.34 | ▲ |
| 18:50 | 35.25 | ▲ |
| 18:40 | 33.26 | ▼ |
| 18:30 | 35.19 | ▲ |
| 18:20 | 34.51 | ▼ |
| 18:10 | 35.17 | ▲ |
| 18:00 | 34.51 | ▼ |