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| Causal analysis of a severe rainstorm event in Huangshi in 2023 |
| Pan Mengying, Zhang Wei, Chen Yuan, Zhang Dong |
| Huangshi Meteorological Bureau,Huangshi 435000 |
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Abstract Based on conventional observations,Doppler radar,satellite data,and ERA5/FNL reanalysis datasets,this study investigates the synoptic patterns,mesoscale systems,and environmental conditions associated with the severe rainstorm that struck Huangshi on the night of June 2930,2023.The results indicate that the event was primarily driven by the combined effects of the South Asia High,the Western Pacific Subtropical High,a shortwave trough,and a lowtomidlevel shear line.Favorable environmental conditions included abundant moisture,intense upward motion,significant instability,and prolonged duration.Furthermore,the interaction between a lowlevel warmmoist jet and weak cold air generated a surface convergence line that triggered mesoscale convective systems;the resulting "train effect"led to sustained precipitation,serving as a primary cause of this severe rainstorm.
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Received: 19 March 2025
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2026, Vol. 43 
