一次热带风暴外围特大暴雨分析

Study of Wenzhou Heavy Rain Associated with Tropic Cyclone 9909

运用T1 0 6数值预报产品、天气实况及卫星云图等非常规资料,对1 999年9月4日在远离990 9热带风暴中心的温州引发的特大暴雨进行探讨,发现秋季在厦门以南至广东东部登陆的台风,在浙中南沿海形成台风倒槽,该倒槽内暖湿切变线的中尺度对流云团是引起特大暴雨的重要条件。

With T106 numberial products, satellite data and observations, a study of Wenzhou heavy rain associated with tropic cyclone 9909 is made. The results show that the autumn tropic cyclone landing at the east of Guangdong Province often accompanies with an inverted trough extending to the middle-south of Zhejiang coast. At the special place MCC is occured, and at the same time, it causes the heavy rain.