摘要
2022年3月16~17日武汉天河机场出现一次强雷雨过程,是2022年的初雷过程。本文利用中央气象台天气图资料、地面及探空资料、华中雷达拼图图像、自动站降水资料、本场观测报文、风廓线雷达资料对该次雷雨天气过程进行分析,主要得出以下结论:此次雷雨过程降水强度大且时空分布不均匀;高层槽线和中低层低涡东移速度较快,天河机场位于西南急流出口左侧,同时地面有冷空气南下激发动力抬升造成了此次大面积对流天气;中低层切变线与雷暴发展旺盛区、降水大值区有非常好的对应关系;预报服务中对雷暴发生时间的预报需关注中低层低涡移动速度,雷暴发生时间和低涡暖式切变线到达本场的时间基本相同,对中到大的降水发生时间需关注2000米高度西南急流发生的时间,对雷暴结束时间的预报需关注地面南风转北风的时间。
From March 16 to 17, 2022, a strong thunderstorm occurred in Wuhan Tianhe Airport, which is the initial thunderstorm process in 2022. This paper analyzes the thunderstorm weather process by using the weather map data of the Central Meteorological Observatory, ground and sounding data, central China radar puzzle image, automatic station precipitation data, Tianhe Airport METAR data and wind profile radar data. The main conclusions are as follows: the thunderstorm process has high precipitation intensity and uneven temporal and spatial distribution;the high-level trough and low-level vortex move eastward rapidly. Tianhe Airport is located on the left side of the southwest jet outlet. At the same time, there is cold air on the ground southward to stimulate dynamic uplift, resulting in this large-area convective weather;the middle and low-level shear line has a very good corresponding relationship with the areas with strong thunderstorm development and high precipitation value;in the prediction service, the prediction of thunderstorm occurrence time should pay attention to the moving speed of low vortex in the middle and low layers. The thunder-storm occurrence time is basically the same as the arrival time of low vortex warm shear line. For the occurrence time of medium to large precipitation, the occurrence time of southwest jet at the height of 2000 meters should be paid attention to. For the prediction of thunderstorm end time, the time of ground south wind to north wind should be paid attention to.
出处
《气候变化研究快报》
2022年第3期345-351,共7页
Climate Change Research Letters
