Chen Lai-fa, director of the Weather Forecasting Center at the Central Weather Bureau, explains that when vapor drifting through the atmosphere runs into a mountain, it is forced to higher altitudes where cooler temperatures cause it to condense into rain.
中央氣象局預報中心主任陳來發解釋，水氣漂浮於空中，碰到山被舉升至高處，因高空溫度低而凝聚成雨滴，嘩啦拉順勢而下。