[ Objective ] The hail weather and forecast storm in Guilin were studied. L Method ] In allusion to the occurrence of hailstorm in Guilin and considering the observation data of a new generation of Doppler weather radar in Guilin, the weather situation and radar echo characteristics in Guilin was summarized so as to explore the short time forecast method. [Result] There was one or two icy storms every year in Guilin. The occurrence of icy storm was distinctly influenced by terrain. A new generation of Doppler weather radar detection ice storm was very effective. The singular intensity of echo of icy storm in Guilin was above or equal to 50 dBz and the height of echo was above or equal to 10 km. The vertical liquid content was above or equal to 40 kg/m2, accompanied by mild cyclone. When there was strong icy storm, there were three flux characteristics. The forecast of icy storm was mainly short time forecast. [ Conclusion] The study offered reference for the forecast of icy storm, artificial storm and disaster prevention and mitigation work.%[目的]研究桂林地区冰雹天气及其预报方法.[方法]针对桂林地区的冰雹发生情况,结合桂林新一代多普勒天气雷达的观测资料,总结分析影响桂林地区冰雹的天气形势和雷达回波特征,探索冰雹天气的短时临近预报方法.[结果]桂林地区每年都会出现1～2次冰雹,冰雹发生受地形影响明显,地理分布极不均匀;时间分布比较集中,主要发生在春季,且多发生在下午到傍晚时分.新一代多普勒天气雷达探测冰雹十分有效,桂林地区冰雹的回波单体强度≥50 dBz,回波顶高≥10 km,垂直液态水含量≥40 kg/m,常配合有中气旋,冰雹很强的时候,还会出现三体散射特征.冰雹的预报以短时临近预报为主.[结论]该研究为冰雹的预报、人工消雹和减灾防灾工作提供参考.
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