山东潍坊地区的一次大风冰雹强对流天气分析

为了更好地研究潍坊地区强对流天气的发生发展机制及特点，减少大风冰雹等灾害性天气带来的危害，为日后的春夏季节强对流天气预报工作提取可利用的预报指标，提高预报准确率，特对此次强对流天气过程进行诊断分析。本文利用常规气象资料进行剖面和探空分析，同时结合雷达和卫星云图等短时临近数值预报产品进行成因分析，得出此种强对流天气的发生特点和类型。结果表明，此次强对流天气的产生的重要原因是东北冷涡东移过程中分列出的高空槽。冰雹发生在2日的下午，此时低层升温明显，能量充足。前倾结构的高空槽使高层干冷空气叠加在低层暖湿空气上，导致不稳定层结出现，从而触发了强对流天气的发生。

A wind hail strong convective weather analysis of Shandong weifang

In order to study the occurrence of severe convective weather in weifang development mechanism and characteristics of reducing wind hail about the dangers of severe weather, such as work for later spring and summer season severe convective weather forecast sum up experience, improve the prediction accuracy, especially for the severe convection weather process diagnosis analysis. This paper, by using conventional meteorological data section and sounding analysis, at the same time combined with radar and satellite cloud image short-term approaches to analyze causes of numerical forecast products, it is concluded that the occurrence of such a severe convective weather characteristics and types. The results show that the severe convective weather is one of the important reasons is the northeast cold eddy is maintained and strengthened. Hail occurred in 2 PM, the lower temperature, abundant energy. Forward the structure of the upper trough to top dry cold air superimposed on the low-level warm moist air, lead to unstable stratification, triggering the severe convective weather.