Ключевые слова: alert level 4, announcement of flood hazard information, bank, clouds, disaster, equivalent to alert level 4, evacuation, evacuation instructions, flood, flood alarm, flood hazard information, flood warning, flood warning water level, flooding, heavy rain, heavy rain flood warning, heavy rain warning, japan, linear precipitation zone, muddy stream, natural disaster, natural disasters, outdoor, rain, rising, risk, river, scenery, torrential rain, typhoon, vigilance water level, water, water level, wet weather, yamato river,