River water level information
- River conditions
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- Normal
- River flooding
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Rivers with current flood forecasts
- Flood forecast announcement types
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High Risk level Low
- River flooding
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River flooding is occurring
- Flood danger
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Flooding could occur at any time
- Flood warning
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Risk of flooding after a certain period of time
- Flood advisory
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River level expected to rise
- Normal
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Normal water level
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Rivers that have reached the benchmark water level
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Currently, there are no hydrometric stations where river levels have reached the caution stage.
Not every hydrometric station is listed here, so please check the information published by your local government as well.
- About posted information
- Information is obtained from local governments, the Japan Meteorological Agency, and the Ministry of Land, Infrastructure, Transport and Tourism.
- Ministry of Land, Infrastructure, Transport and Tourism (external site)
- Japan Meteorological Agency (external site)