What clouds indicate that the weather will change?

First of all, cirrus clouds-sunny days

Among these ten kinds of clouds, cirrus is the farthest from the ground, with a height of more than 5 kilometers, belonging to high clouds. Clouds have fibrous structures, usually white and shadowless, and some are gray or dark gray, which can be divided into four types:

1, hook cloud

Shaped like a comma symbol, it is white. Its appearance indicates rain, so there is a saying that "clouds are hanging in the sky and rain is dripping on the ground". But in autumn and winter, the appearance of hook clouds indicates sunny or frosty weather, so there is a saying that "winter hook clouds will make dust glow"

2. cirrus clouds

It is usually white and looks like a feather. Its appearance indicates a sunny day. "Flower clouds in the sky will kill people on the ground" and "Flower clouds tonight will kill people tomorrow" are talking about cirrus clouds. But if it develops into cirrostratus, it will rain.

3. cirrus clouds

Thick cirrus clouds, thin sunlight can penetrate the clouds, thick ones can weaken the sunlight, and even the sun can't be seen at all. At this time, it is gray. Its appearance shows that the air is stable, but it will rain when it develops into cirrostratus. Dense cirrus clouds occasionally drop sporadic precipitation.

4. False clouds

False clouds are the anvil of cumulonimbus clouds, which are often seen when cumulonimbus clouds sink. After the cumulonimbus anvil is separated from the main body, only the anvil is left, which is the pseudo cirrus cloud. Most of them are strip, spherical, anvil, feather and so on. , the color is white or dark gray. Its appearance indicates that the air will change from unstable to stable.

Second, thistle-sunny day

The appearance of cirrocumulus indicates good weather and will not produce precipitation. But if the clouds in the sky are mainly cirrocumulus, they are related to cirrus clouds and cirrostratus, which often indicates rain. Thistle is white, the night is gray-black, and the clouds are very thin, which can penetrate the sun and moonlight and reveal fish scales.

Third, cirrostratus-sunny or cloudy?

Cirrostratus is composed of ice crystals, and halo is often seen in clouds, which is located at the top of thunderstorm layer. Sometimes, they are also related to tropical cyclones, because the winds of tropical cyclones blow outward, blowing cirrostratus away from where it was formed. When cirrostratus appears, he will be dizzy, and it will rain. There are three agricultural proverbs: "The sun is dizzy and it rains in the middle of the night, and the moon is dizzy and it is windy at noon", "The foundation is wet and it rains" and "The sun and the moon have wind circles, and it is windy when there is no rain".

Fourth, cumulus clouds-cloudy to cloudy

Altocumulus belongs to the Zhongyun family. Thin clouds are white and sunlight can penetrate them. Thick clouds are dark gray, and sunlight and moonlight can't penetrate. Flat, tile-shaped, fish-scale and wavy dense cloud belts, including translucent cumulus clouds, Oguang, pod, fort, cumulonimbus clouds and flocculent clouds. The appearance of altocumulus clouds often indicates sunny days, and there are some sayings that "Wayun will burn people to death" and "carp in the sky need not turn over when drying grain".

5. High clouds-cloudy or light rain

High-level clouds belong to the Zhongyun family, and the outline of the sun and the moon is vague, such as a layer of ground glass. Grayish white or gray, high-level clouds are caused by the thickening of cirrostratus and the thinning of nimbostratus. It looks like rain. After the upper clouds, nimbostratus will come and it will rain. High-level clouds can be divided into transparent high-level clouds and open high-level clouds.

Cumulus clouds-sunny, partly cloudy or cloudy.

Cumulus belongs to the direct spread cloud system, and the height of the cloud bottom is 2000~5000 meters. The cloud top is curved and the cloud bottom is flat. It is a faint cumulus cloud that indicates sunny day, because it is like steamed bread, commonly known as "steamed bread cloud", and there is a saying in the agricultural proverb called "steamed bread cloud, sunny day". Cumulonimbus clouds can develop into cumulonimbus clouds and produce thunderstorms.

Seven, cumulonimbus clouds-cloudy days, thunderstorms (hail)

Cumulonimbus belongs to the straight cloud family, and its appearance is a sign of thunderstorm and even hail and tornado. It can be divided into bald cumulonimbus clouds and bristle cumulonimbus clouds. Bald cumulonimbus is a transitional stage from thick cumulonimbus to bristle cumulonimbus, which exists for a short time. Bristle cumulonimbus is a strong stage of cumulonimbus.

Stratocumulus-cloudy, cloudy, light rain and snow

Stratocumulus belongs to the low cloud family, and the height of the cloud bottom is below 2500 meters. In translucent stratocumulus clouds, the clouds are thin and gray, which will not produce precipitation and will be cloudy. Our light cumulus clouds are dark gray, which can produce light rain and light snow.

Nine, nimbostratus-continuous rain and snow

Nimbostratus belongs to the low cloud family, and the height of the cloud bottom is below 2500m. It will produce precipitation for a long time. There are two words in the agricultural proverb: "If the sky is covered with gray clouds, the rain will continue" and "If the sky is covered with gray clouds, the rain will continue". The color is dark gray, low and amorphous.

Ten, stratus-Mao Mao rain.

Stratocumulus belongs to the low cloud family, the height of the cloud bottom is below 2500 meters, and it often covers halfway up the mountain. Stratocumulus can be divided into stratocumulus and stratocumulus. Stratosphere occasionally rains and snows in Mao Mao, but it doesn't rain heavily. The appearance of dark clouds indicates a sunny day.