2024-04-02强对流天气过程背景及成因分析

Abstract
Figure/Table
References
Related Citation (15)

Download: HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to deeply analyze the causes and characteristics of the significant squall line weather in Jiangxi on April 2,2022,this article mainly uses observation data from Jiangxi Provincial Meteorological Station,MICAPS conventional weather data,sounding maps,Jiangxi WebGIS radar echoes and other data to summarize the weather system,water vapor,heat,dynamics and other conditions of severe convective weather,as well as the radar echo characteristics of different severe convective weather such as hail,thunderstorm winds,and short-term heavy precipitation.The results indicate that the high altitude divergence at 200 hPa,the continuous eastward movement of the 500 hPa trough,the water vapor and unstable conditions supplied by the strong southwest jet stream on the shear south side,and the development of the cold air front trough on the ground have led to an increase in temperature and humidity.The strong weather background in Jiangxi,where cold air flows southward,provides the driving force,heat,and water vapor conditions for the formation of severe convective weather.The sounding structure indicates that this severe weather event has significant characteristics of the occurrence and development of multiple types of severe convective weather such as thunderstorms,strong winds,hail,and heavy precipitation.Compared with similar historical cases,the intensity of the southwest jet stream,wind vertical shear,K index,etc.have certain extremes;The strongest short-term heavy rainfall,thunderstorm gusts,and hail in this round of severe convective weather were all caused by supercells or micro supercells carried by squall line echo bands.On the echo band of the squall line,there are constantly strong convective cells moving from west to east,some of which develop into supercells.When passing through a certain area,they cause extreme short-term heavy precipitation.Super cells can cause hail while also experiencing thunderstorms and strong winds close to level 12,as well as short-term heavy rainfall of ≥70 mm/h.The research results provide typical cases and reference basis for the early warning and forecasting of squall line weather processes in Jiangxi.

Key words： squall line hail thunderstorms and strong winds heavy precipitation cause analysis

Received: 25 February 2025

ZTFLH:

P458.3

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Chen Baofa
	Ji Guiping
	Cai Junfeng
	Huang Nan

Cite this article:

Chen Baofa,Ji Guiping,Cai Junfeng等. Background and cause analysis of severe convective weather process on April 2,2024[J]. Meteorological Hydrological and Marine Instrument, 2025, 42(2): 27-31.

URL:

http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2025/V42/I2/27

[1]	李嘉,马中元,郑媛媛,等.一次强飑线过程多尺度回波系统特征分析[J].气象科学,2022,42(5):622-630.
[2]	田白,马中元,陈鲍发,等.2022年3月14日江西及周边地区冰雹回波特征分析[J].气象,2023,49(12):1521-1531.
[3]	马尚芹,马中元,谢维,等.2020-05-05江西飑线过程特征分析 [J].气象水文海洋仪器,2021,38(4):8-11.
[4]	柳守煜,马中元,陈鲍发,等.“2013.3.19”飑线天气过程分析[J].气象水文海洋仪器,2014,31(3):28-32.
[5]	卢秋芳,马中元,陈鲍发,等.一次飑线(冰雹)天气过程中尺度分析 [J].气象水文海洋仪器,2014,31(2):13-18.
[6]	柳守煜,陈鲍发.江西区域强对流气候特点及云型分析 [J].气象水文海洋仪器,2013,30(3):125-128.
[7]	孟芳,张丽,叶丹,等.宜昌市一次倒槽锋生气旋混合型对流天气特征分析[J].人民长江,2024,55(增刊1):29-34.
[8]	龚佃利,朱君鉴,林曲凤,等.一次超级单体引发的秋季特大冰雹和龙卷雷达探测分析[J].气象,2024,50(5):561-576.
[9]	侯淑梅,朱晓清,史茜,等.冷涡背景下山东省“5·17”极端强对流天气环境条件分析[J].气象,2023,49(11):1328-1342.
[10]	曹艳华,马中元,叶小峰,等.江西外来飑线的常见卫星云图特征[J].自然灾害学报,2010,19(4):54-59.
[11]	马中元,叶小峰,张瑛,等.江西三类致灾大风天气活动与回波特征分析[J].气象,2011,37(9):1108-1117.
[12]	马中元,苏俐敏,谌芸,等.一次强飑线及飑前中小尺度系统特征分析[J].气象,2014,40(8):916-929.
[13]	徐瑾薇,马中元,郑媛媛,等.玉山雷暴大风雷达回波特征分析[J].气象科学,2023,43(2):167-176.
[14]	陈鲍发,马中元.江西局地冰雹WebGIS雷达拼图回波特征分析[J].气象与环境科学,2019,42(2):104-114.
[15]	马中元,王金鑫,张林才,等.基于雷达拼图CR产品四要素识别冰雹云的方法[J].大气科学学报,2024,47(5):826-840.