Can you see the change of weather from the change of cloud color?

In addition to the arrangement of clouds, we can also clearly see the weather changes, and we can also distinguish the weather changes from the color changes of clouds. When the clouds are dark gray, red and yellow, and so on. It may be a sign of heavy rain, so there are proverbs such as "Dark clouds are stacked in pieces in front of a thunderstorm", "Dark clouds cover the fire, and the rain comes quickly", "Red clouds are rising, so you are advised not to go out", "Fat clouds are late, and it will rain heavily tomorrow", "People are sick and it will rain yellow", which also shows that the ancients are right.

We often find this phenomenon. There will be beautiful colored apertures around the sun and the moon, usually infrared purple. This aperture is called a halo. Solar and lunar halos often appear on the cirrostratus, and the high-rise clouds behind cirrostratus and nimbostratus are signs of heavy rain. The proverb "The sun is dizzy, it rains in the middle of the night, the moon is dizzy and it is windy at noon" refers to this phenomenon.

Another color halo is smaller than "halo" and is called "Hua". Contrary to the color arrangement of halo, the aperture colors of Hua are purple and ultraviolet red. Rihua and Yuehua are mostly produced at the edge of cumulus clouds. If the wreath grows from small to large, it means that the weather will gradually get better. If the wreath changes from big to small, it means rainy weather may come.