Analysis of Heavy Precipitation Process in North China from August 23 to 24, 2020

In order to better understand the formation mechanism of rainstorm in China and promote disaster prevention reduction, based on meteorological data National Meteorological Information Center Japan Agency, this paper draws isobaric surface map 850 hPa 500 hPa, relative humidity precipitation distribution map. study, synoptic methods were used analyze heavy process North from August 23th 24th, 2020. The results show that 1) short-term requires sufficient water vapor very strong upward movement; 2) 24th 2020 was influenced by upper-level trough line, cold vortex front, which made warm air strongly converge over China, resulting convective weather; 3) rainfall also Typhoon Bawei, caused maximum humidity.