降雨概率 meaning in English

rainfall expectancy
rainfall probability

There ' s a 79 % chance of rain in the next half hour
半小时内，降雨概率是79 %
There ' s a 65 % chance of rain tonight
今天晚上的降雨概率是65 %
Now , there ' s a 20 % chance of showers for new london and points south
新伦敦以南地区现在的降雨概率为20 %
From the angle of uncertainty of inflow and water consumption , the risk of water dispatching on the lower reaches of the yellow river is analyzed . inflow series are generated by use of the method of representative disaggregation . water consumption series are generated according to rainfall probability distribution . a model for risk analysis of water dispatching is established with the technique of stochastic simulation , and a quantitative description of risk is presented , thus , making the water dispatching decision - making more scientific
从来水和用水不确定性角度分析黄河下游水量调度风险.对来水采用典型解集方法生成来水系列，对用水根据降雨概率分布生成用水系列，利用随机模拟技术建立了水量调度风险分析模型，给出风险的定量描述，从而使水量调度决策更加符合实际