What is the precipitation in the rainstorm?

Rainstorm refers to the rainfall (100 ~ 250mm) with 24-hour precipitation greater than or equal to that specified by China's meteorological work. Because of the vast territory of our country and the great difference in rainfall intensity, the rainfall standards are somewhat different.

The rainstorm weather situation in China can be divided into four categories: stable meridional type, stable latitudinal type, middle and low latitudinal interaction type and transitional type.

Cause of rainstorm in China;

1, ITCZ (intertropical convergence zone) goes north;

2. A strong easterly jet formed between the offshore typhoon and the north subtropical high;

3. The combination of landing typhoon and mid-latitude westerly trough;

4. The upper trough overlaps with the easterly wave (or typhoon inverted trough);

5. The South Branch Trough interacts with the storm or typhoon in the Bay of Bengal in the South China Sea;

6. The southerly airflow in the northeast of the Bay of Bengal storm transported a lot of water vapor to the north.

The above contents refer to Baidu Encyclopedia-Rainstorm.