| 渡良瀬貯水池 | 04/02 |
| 貯水率(%) | |
| 12時間履歴 | ||
| 12:00 | 33.2 | ▲ |
| 11:00 | 33.1 | ▲ |
| 10:00 | 32.9 | - |
| 09:00 | 32.9 | ▲ |
| 08:00 | 32.7 | - |
| 07:00 | 32.7 | ▲ |
| 06:00 | 32.6 | - |
| 05:00 | 32.6 | ▲ |
| 04:00 | 32.4 | - |
| 03:00 | 32.4 | - |
| 02:00 | 32.4 | ▲ |
| 01:00 | 32.3 | - |
| 2時間履歴(10分) | ||
| 12:40 | 33.2 | - |
| 12:30 | 33.2 | - |
| 12:20 | 33.2 | - |
| 12:10 | 33.2 | - |
| 12:00 | 33.2 | ▲ |
| 11:50 | 33.1 | - |
| 11:40 | 33.1 | - |
| 11:30 | 33.1 | - |
| 11:20 | 33.1 | - |
| 11:10 | 33.1 | - |
| 11:00 | 33.1 | - |
| 10:50 | 33.1 | - |