What is convective rain?

Convective rain: the air near the ground is strongly heated, causing vertical convection of air. In the process of hot and humid air rising, the water vapor in it cools and condenses to form precipitation.

Convective precipitation is characterized by small range, large intensity, uneven distribution, short duration and rapid change with time. Convective precipitation is a common extreme weather phenomenon in the middle and lower reaches of the Yangtze River.

1 Convective precipitation is produced under the condition of unstable atmosphere, mostly in the hot afternoon in summer;

2 Its horizontal scale is very small, generally within 0. 1-50 km, and the precipitation duration is short, generally tens of minutes, forming a formation precipitation, often called shower;

3 changes in precipitation intensity. Convective precipitation is often accompanied by thunderstorms (lightning and thunder), which become thunderstorms.

Distinguishing flowing rain from frontal rain with extended data

frontal rain

When two different kinds of airflow meet, the interface between them is called front. On the front, warm, humid and lighter air is brought into cold, dry and heavier air. In the process of uplift, the water vapor in the air cools and condenses, and the precipitation formed is called frontal rain.

Frontal rain refers to the rain formed when the cold air mass meets the warm air mass and the warm air mass rises, such as plum rain in the south and cold wave in the north.

Convective rain means that when a place is heated, the air is heated and rises, resulting in rainfall, such as rainstorm in summer and convective rain, which is not typical in China. There is also midsummer in Singapore and the Yangtze River valley. Frontal rain is the most common in China. For example, Meiyu in the Yangtze River basin is the most famous.

Baidu Encyclopedia-Convective Precipitation

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