Diagnostic Analysis of Rainstorm Weather Process in Jilin Region Caused by Typhoon"Meihua"in 2022
This paper selects the automatic weather station data,NCEP reanalysis data and other relevant observa-tion data to diagnose and analyze the weather process of rainstorm caused by typhoon"Meihua"in Jilin in 2022.The results reveal:Before the occurrence of this weather event,the"Meihua"guided the airflow to move rapidly northward along the southwest direction behind the subtropical high pressure.Most areas of Jilin Province have ex-perienced small trough fluctuations in the westerly belt,with some cold air added behind it,which has had a signifi-cant impact on the warm and humid air of the"Meihua"system,providing a good circulation situation for this ex-treme precipitation weather.
Typhoon"Meihua"RainstormCirculation backgroundPhysical quantity field