warning water level

基本解释

It shows that the average chance for exceeding the local warning water level 155cm is once per 2.5years.
经对赤湾站的检验，超警戒潮位出现的机率是平均2.5年一次。
To determine the safety water level and the warning water level is of chiefly assignment for the new gauge.
确定各水文站保证水位和警戒水位，是新建水文站的首要工作任务之一。
Local authorities said the Qujiang and Bahe rivers and their branches have surpassed their warning water level, forcing thousands of people to evacuate.
当地政府表示，曲江和白河及其支流已超过警戒水位，上千名群众被迫紧急转移。