2018年6月山东省中东部一次大范围强冰雹天气分析

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基金项目 山东省气象局预报员专项（SDYBY2018-10）。

作者简介 王世杰（1986—），男，新疆伊犁人，工程师，主要从事短期及短时临近天气预报研究工作。

收稿日期 2023-07-30

Analysis of A Large-scale Severe Hail Weather in the Central and Eastern Parts of Shandong Province in June 2018

Wang Shi-jie et al（Weifang Meteorological Bureau， Weifang， Shandong 261011）

Abstract Utilizing NCEP/NCAR 1°×1°reanalysis data， conventional meteorological observations， sounding data， and Doppler weather radar data were used to analyze the large-scale circulation background， environmental parameter characteristics， small and medium-sized weather characteristics， and uplift triggering mechanism of large-scale hail weather in Weifang area on June 13， 2018. The results showed that： （1） The upper-air cold vortex， the 850 hPa shear line and jet stream， the left side of the 200 hPa jet outlet area and the surface cold front were favorable circulation conditions for hailstorms. （2） The warm advection in the lower troposphere and the cold advection in the middle and upper troposphere provided thermal instability for the occurrence of strong convection. （3） The ground dew point was 20～21 ℃， the atmospheric precipitation was more than 30 mm， and the specific humidity of 850 hPa was more than 8 g/kg. （4） The supercell storms in Hanting and Changyi were typical， with hook-shaped echoes， echo overhangs， and V-shaped inflow gaps. （5） The vertically integrated liquid water content （VIL） was a favorable indicator for judging the occurrence of large hail.

Key words Hail; Super monomer; Radar echo characteristics; Vertical integral liquid water content

摘要 利用NCEP/NCAR 1°×1°再分析资料、常规气象观测、探空资料和多普勒天气雷达资料，分析2018年6月13日潍坊地区大范围冰雹天气的大尺度环流背景、环境参数特征、中小尺度天气特征及抬升触发机制等。（剩余5260字）