What are the characteristics of Prison Guard?

Characteristics of Prisoner Front Cloud Series:

1. The cloud system of the prison front appears as a cloud belt about 300 kilometers wide, starting from the top of the warm area and spiraling toward the center of the vortex. The spiral cloud system must coincide with the center of atmospheric circulation.

2． In the back of the cloud system of the prison front, due to the intrusion of cold air, a black cloud-free area with a neat and smooth rear boundary like a tongue is formed, which is called the dry tongue. The shape and extent of dry tongue often indicate cold air activity.

3. The imprisoning front cloud belt often shows that the color becomes darker toward the center along the spiral cloud belt, and the cloud height is the lowest at the center of the spiral cloud belt.

Generally speaking, severe weather prevails near the prison front, and the precipitation area is located between the vicinity of the front and the 700hPa trough line.

Gui Qiu front and Meiyu weather: Gui Qiu front has the characteristics of a cold and warm front. When the front passes through, both sides are precipitation areas. First there is warm front cloud system and continuous precipitation, and then it turns to cold front cloud system. and episodic precipitation. The frontal weather that affects our country mainly includes cold frontal weather and quasi-stationary weather. Cold fronts occur almost all year round, mostly from Russia and Mongolia. In summer, cold fronts only reach the Yellow River Basin. In winter, cold fronts often travel south and affect South China. Quasi-stationary fronts appear every spring and summer in the middle and lower reaches of the Yangtze River in my country, from the southern Yellow Sea to Japan, and these areas often form plum rainy weather.