What does 50 mm heavy precipitation mean?

50 mm precipitation refers to heavy rain. The meteorological department calls it rain and snow precipitation, and precipitation is called precipitation. The unit of precipitation is usually millimeters. 1mm precipitation refers to the water depth per unit area1mm. Light rain refers to rain with the precipitation not exceeding10mm within 24 hours, ranging from 5mm to18mm,10mm to 25mm, moderate to heavy rain to18mm to 38mm, and heavy rain to 38mm to 75mm ... If the rainfall exceeds 50mm within 24 hours, it is called rainstorm; If it exceeds 100 mm, it is called a torrential rain; If it exceeds 200 mm, it is called rainstorm.

Meteorological monitoring and analysis:

Affected by the high-altitude trough, from July 20, 2065438 to July 0, 2007, there were general thunderstorms in Tianjin, with moderate to heavy rain in most areas and heavy rain in some areas. Statistics show that the average precipitation in the city is 12.4 mm, reaching the level of moderate rain. The maximum rainfall occurred in Wenchang Street, Jizhou, with a rainfall of 73.7 mm, reaching the level of rainstorm. Rainfall is unevenly distributed.

The northern and eastern regions have basically reached the level of moderate to heavy rain, and some parts of the west have scattered moderate to heavy rain. The rainfall in the urban area is at least 1.8 mm. According to meteorologists, according to the rainfall, Jizhou is 26.7 mm, Binhai New Area is 18.5 mm, and Ninghe is 18. 1 mm, all of which are moderate rains, and Xiqing, Jinghai, Jinnan and Wuqing are 6.