| 大島(国) |
(渡良瀬川) |
| 計画高水位 | ||
| 氾濫危険水位 | ||
| 避難判断水位 | ||
| 氾濫注意水位 | ||
| 水防団待機水位 | ||
| 現在水位 | 2.45 | ↓ |
| 09/09 | 04:50 | 2.18 | ↑ |
| 05:00 | 2.20 | ↑ | |
| 05:10 | 2.21 | ↑ | |
| 05:20 | 2.24 | ↑ | |
| 05:30 | 2.27 | ↑ | |
| 05:40 | 2.28 | ↑ | |
| 05:50 | 2.31 | ↑ | |
| 06:00 | 2.30 | ↓ | |
| 06:10 | 2.28 | ↓ | |
| 06:20 | 2.31 | ↑ | |
| 06:30 | 2.33 | ↑ | |
| 06:40 | 2.35 | ↑ | |
| 06:50 | 2.34 | ↓ | |
| 07:00 | 2.35 | ↑ | |
| 07:10 | 2.37 | ↑ | |
| 07:20 | 2.36 | ↓ | |
| 07:30 | 2.40 | ↑ | |
| 07:40 | 2.39 | ↓ | |
| 07:50 | 2.39 | → | |
| 08:00 | 2.40 | ↑ | |
| 08:10 | 2.42 | ↑ | |
| 08:20 | 2.41 | ↓ | |
| 08:30 | 2.44 | ↑ | |
| 08:40 | 2.46 | ↑ | |
| 08:50 | 2.45 | ↓ |