How heavy was the rain in Guangdong on the evening of May 21st?

Hello.

To be precise, it started at 12 o'clock in the morning on the 22nd.

Basic situation of the "5.22" heavy rainstorm in Dongguan

Affected by the low vortex shear line, from the night of May 21st to the morning of May 22nd, there were heavy rains to heavy rains in our city, and the city's average The rainfall was 137.6 millimeters, with heavy rains of more than 250 millimeters falling in Gaobu Town, Dongcheng Street, Wanjiang Street, Shijie Town, Zhongtang Town, Wangniudun Town, Guancheng Street, and Daojiao Town, accompanied by strong thunder and lightning and localized Earth-level 9 short-term strong winds. From 20:00 on the 21st to 08:00 on the 22nd, the rainfall in 27 towns and streets in the city exceeded 50 mm, 21 towns and streets exceeded 100 mm, and 8 towns and streets exceeded 250 mm. The highest rainfall was 399.3 mm in Gaobu, followed by Dongcheng. 390.7 mm, Wanjiang 372.3 mm, the maximum gust is 24 m/s (level 9) in the middle hall.