What is the precipitation in the rainstorm?

The precipitation in the rainstorm exceeded 250 mm.

According to China's meteorological regulations, heavy rainfall with 24-hour precipitation exceeding 50 mm is called "rainstorm". According to its precipitation intensity, it is divided into three grades, namely, 24-hour precipitation of 50-99.9 mm is called "rainstorm", 100-249.9 mm is called "heavy rainstorm", and more than 250 mm is called "extraordinary rainstorm". However, due to the different characteristics of precipitation and topography, the standards of rainstorm and flood are different in different places.

The torrential rain lasts the longest, and it is generally a combination of continuous rainstorms in many areas. Rainfall can last intermittently for about 1 ~ 3 months, and the rain belt can last for a long time. Rainstorm is a kind of disastrous weather, which often causes floods and serious soil erosion, leading to major economic losses, such as engineering accidents, dike breaches and crop flooding. Especially for some low-lying and closed terrain areas, rainwater can not be discharged quickly, resulting in farmland water accumulation and soil water supersaturation, which will cause more disasters.