Traditional Culture Encyclopedia - Weather forecast - What weather does moire cloud predict?

What weather does moire cloud predict?

Cirrus clouds are like feathers, like silk tulle, through which the sun shines on the ground without bringing rain or snow.

Cirrocumulus is like a scale wave. Will not bring rain and snow.

Cumulus clouds reflect the mild sunlight in the sky like cotton balls.

The cumulus clouds show blue sky like sheep clouds.

Cirrostratus is like a white silk curtain. It will move forward and the weather will turn cloudy.

High clouds are like ground glass, which indicates rain or snow.

Nimbostratus is full of sky, and continuous rain and snow will begin to fall.

Rain clouds form a high Yunshan, and it will rain heavily soon.

In addition, clouds with weather omen often have certain continuity, seasonality and locality in the evolution process. Clouds in the sky move from a distance in the order of Cirrus, cirrostratus and nimbostratus, and gradually change from less to more, from high to low, from thin to thick, indicating that rainy weather is coming; On the contrary, if the clouds change from low to high, from thick to thin, and from layered clouds to scattered clouds, there will be no rainy weather. In the warm season morning, if there are isolated clouds (light cumulus clouds) with flat bottom and convex top in the sky, or white broken clouds (broken cumulus clouds) that move quickly, it indicates that the air in the middle and lower layers is relatively stable and the weather is fine.

In addition, the color of clouds can also indicate some kind of weather. For example, the color of hail cloud is first white and then black, and then red appears in the cloud, forming a white, black and red distorted cloud with khaki edges. Black is caused by the sun's inability to penetrate clouds; White is the result of non-selective scattering or reflection of sunlight by clouds; Red and yellow are the phenomena that some cloud droplets (ranging from one thousandth to one hundredth of a millimeter in diameter) in the cloud selectively scatter sunlight. Sometimes rain clouds are pale yellow, but the color of the clouds is uniform and will not stir. There are also many proverbs that predict hail from the color and shape of clouds. For example, there is a proverb in Inner Mongolia, such as "I am not afraid of the darkness in the clouds, but I am afraid of the red darkness in the clouds, and I am most afraid of the white worms under Huang Yun". In Shaanxi, there is "Huang Yun turned over and hail; Stir clouds and hail in groups; There are proverbs such as "When clouds fight, it will hail" and "When the dark clouds in Huang Yun are red, they will be stirred repeatedly, and many hail disasters are serious". There are also some sayings, such as "the dark clouds roll into a ball in the afternoon, and the wind, rain and hail come together", "The sky is yellow and sultry, and the Tianhe water growls to prevent ice eggs", all of which indicate that when the air convection is strong, the clouds develop rapidly, like smoke rushing up, and the clouds roll up and down, which is easy to hail.