What are the main areas with strong convective weather in Henan?

On the afternoon of June 3, strong convective weather such as lightning, short-term gale, local hail and short-term precipitation occurred in Anyang, Hebi, Puyang, Xinxiang, Jiaozuo, Jiyuan, Zhengzhou, Kaifeng and Shangqiu. Among them, from 3 15: 46 to 23: 00, strong squall weather occurred in Zhengzhou, Kaifeng and Shangqiu. The length of the squall line is about 140 km, and it moves rapidly to the southeast at the speed of 50~60 km per hour. Subsequently, the squall line spread to northern Anhui and Heze, Shandong. According to statistics, thunderstorm weather occurred in more than 40 counties and cities in the province, with short-term northerly winds above17 m/s (level 7) in1958 counties and cities. At 22: 42, the maximum wind speed in Yongcheng County, Shangqiu was 29 m/s (level1958).