How do I know the weather?

Clouds in the sky are varied and unpredictable: some are like feathers, floating gently in the air; Some are like fish scales, neatly arranged one by one; Some come and go like sheep; Some are like a big cotton wool, covering the sky all over the ground; Others are like mountains, rivers, lions and galloping horses ... sometimes they decorate the sky beautifully, and sometimes they cast a shadow over it. Just now, it was white clouds and the sun was shining; In a blink of an eye, it was cloudy and it rained cats and dogs. Clouds are like signs of weather. What kind of weather will happen when there are clouds hanging in the sky?

Experience tells us that thin clouds in the sky are often a symbol of sunny weather; Those low and thick clouds are usually signs of rain and snow.

The lightest and tallest clouds are called cirrus clouds. This cloud is very thin, through which the sun can shine on the ground, and the shadows of houses and trees are still very clear. Cirrus clouds are constantly floating, sometimes like a white feather, sometimes like a white silk thread. If cirrus clouds line up in the air, like ripples caused by a breeze blowing over the water, it becomes cirrus clouds. Cirrus and cirrocumulus are located in high places, with little water, and generally do not bring rain and snow. There is also a kind of white clouds like cotton balls, called cumulus clouds, which are often scattered in the sky about two kilometers, reflecting the mild sunshine, and the clouds are surrounded by golden brilliance. Cumulus clouds began to appear in the morning, most in the afternoon, and gradually dissipated at night. On sunny days, we will also encounter a kind of cumulus. This is a oblate cloud, arranged in a balanced way, with a blue sky in the middle, which looks like a snow-white sheep on the grassland from a distance. Cirrus, cirrocumulus, Cumulus and Cumulus are all beautiful.

When the continuous rain and snow came, cirrus clouds gathered, and a thin cloud gradually appeared in the sky, as if covered with a white silk curtain. This cloud is called cirrostratus. Cirrostratus is advancing slowly, and the weather will turn cloudy. Then, the clouds are getting lower and thicker. Looking at the sun and the moon through the clouds is like a layer of ground glass, hazy. At this point, cirrostratus had to change its name and surname, and it was time to call it Advanced Cloud. There are high clouds, and it often rains or snows within a few hours. Finally, the clouds are getting lower and thicker, the sun and the moon are hidden, and the sky is covered with dark gray clouds. This new cloud is called nimbostratus. As soon as nimbostratus was formed, it began to rain and snow continuously.

In summer, before a thunderstorm, cumulus clouds will appear in the sky first. Cumulonimbus clouds will become cumulonimbus clouds if they swell up quickly to form tall Yunshan, and the peaks will compete with each other and go straight to the zenith. Cumulonimbus clouds grow higher and higher, the cloud bottom turns black, and Yunfeng gradually blurs. Soon, the whole Yunshan collapsed and dark clouds filled the sky. In an instant, thunder rumbles and thunders, and it will crash underground, sometimes bringing hail or tornadoes.

We can also infer the weather from the brilliance on the clouds. Around the sun and the moon, sometimes beautiful colored apertures appear, the inner layer is red and the outer layer is purple. This aperture is called halo. Solar and lunar halos often appear on the cirrostratus. When there are large high-level clouds and nimbostratus behind cirrostratus, it is a sign of heavy rain. So there is a saying that the sun is dizzy in the middle of the night and the moon is dizzy at noon. When cirrostratus is accompanied by dizziness, the weather will get worse. There is also a color halo smaller than halo, called Hua. The arrangement of colors is purple and red, just the opposite of halo. Rihua and Yuehua mostly appear at the edge of cumulus clouds. The central part will grow from small to large, and the weather will tend to be fine. The central region of China is getting smaller from big to small, and the weather may turn rainy. In summer, after the rain clears, a colorful arc is often hung on the cloud curtain opposite the sun. This is a rainbow. People often say: "The east rainbow thunders and the west rainbow rains." If the rainbow is in the east, it will thunder and not rain; The rainbow is in the west and there will be heavy rain. There is also a cloud color, which often appears in the early morning or evening. The sun shone all over the sky and dyed the clouds red. This cloud is called Xia Xia. The morning glow indicates that rainy weather is coming; The sunset glow shows that the weather has been fine in recent days. Therefore, there is a proverb "Don't go out at sunrise, but go to Wan Li Road at sunset".

Clouds can help us identify sunny and rainy days and predict weather changes, which is of great significance to industrial and agricultural production. If you want to learn to understand the weather from the cloud, you should learn from experienced people with an open mind, pay attention to the changes of the cloud, and master its laws in repeated practice. However, the weather changes are extremely complicated, and there is a certain limit to understanding the weather from the clouds. We should accurately grasp the weather changes.