| 渡良瀬貯水池 | 05/15 |
| 貯水位(m) | |
| 12時間履歴 | ||
| 02:00 | 12.29 | - |
| 01:00 | 12.29 | - |
| 00:00 | 12.29 | - |
| 23:00 | 12.29 | - |
| 22:00 | 12.29 | - |
| 21:00 | 12.29 | - |
| 20:00 | 12.29 | - |
| 19:00 | 12.29 | ▲ |
| 18:00 | 12.28 | - |
| 17:00 | 休止中 | - |
| 16:00 | 休止中 | - |
| 15:00 | 休止中 | - |
| 2時間履歴(10分) | ||
| 02:50 | 12.29 | - |
| 02:40 | 12.29 | - |
| 02:30 | 12.29 | - |
| 02:20 | 12.29 | - |
| 02:10 | 12.29 | - |
| 02:00 | 12.29 | - |
| 01:50 | 12.29 | - |
| 01:40 | 12.29 | - |
| 01:30 | 12.29 | - |
| 01:20 | 12.29 | - |
| 01:10 | 12.29 | - |
| 01:00 | 12.29 | - |