What is a little cloud called a cloud?

Little by little, the clouds are called fish scale clouds, also known as semi-transparent clouds of cumulus clouds, which are like fish scales in rows. They are a kind of cloud layer when strong cold air comes, indicating that the recent weather conditions are unstable.

Semi-transparent cumulus clouds are thin and white, and are usually arranged neatly in one or two directions. There are obvious gaps between clouds, and even the edges of seamless clouds are bright.

The appearance of such clouds is a sign that the weather will clear up, and there will be clear skies in Wan Li and Wan Li for two or three days. The reason is that the cold air at high altitude sinks, breaking through the continuous clouds and forming fish scale clouds. Cold air sinks to the ground and is heated, so the water in the air evaporates, the relative humidity decreases, the air pressure rises, and the clouds also rise, resulting in continuous sunny days. This kind of cloud usually appears in autumn. There are also signs of crisp autumn.

Misunderstanding:

Some people mistakenly think that translucent cumulus clouds are earthquake clouds. Meteorologists say that there is no such concept as "earthquake cloud" in meteorology. Semi-transparent cumulus clouds are affected by high altitude trough. Generally, cold air passes through the border, and it will rain when it meets warm and humid airflow.

If there is cold air but it doesn't rain, it means that the air is not hot and humid, and a certain humidity is maintained at high altitude; If the sky is dry, it will be sunny and cloudless in Wan Li.