What is the weather sign of solar halo? What does a double solar halo portend?

The appearance of solar halo is a sign of thunderstorm in modern times, but it is a bad sign in ancient times, which means that something big is going to happen. So what are the signs of solar halo weather provided by astrological knowledge? What does double solar halo mean?

What is the weather sign of solar halo? This indicates that a thunderstorm is coming. The appearance of solar halo often indicates the coming of thunderstorm weather, so it is also called the wind circle by the people. Only a large number of crystals can reflect such a colorful wreath. If people see it, they can prepare for rain and wind in advance.

According to meteorologists, double solar halo is a common atmospheric optical phenomenon, and its formation is related to high clouds. High clouds are generally composed of tiny ice crystals, which are equivalent to triangular prisms. When sunlight passes through the ice crystals contained in high clouds, it will be refracted and reflected twice, forming a solar halo. Because high clouds containing ice crystals are generally "deep-water bombs" attacked by thunderstorm weather, the appearance of solar halo often indicates that the weather will turn bad in a short time. Therefore, there is a folk saying that the sun is dizzy and rainy in the middle of the night, and the moon is dizzy and windy at noon.

The observation methods of solar halo are usually 22 degrees and 46 degrees. People can usually observe the phenomenon of "solar halo" with the naked eye. The larger the ice crystal content in the cloud, the more obvious the halo, which is easy for people to observe; On the contrary, the "solar halo" cannot be formed, or even if it is formed, it cannot be clearly observed on the ground.

Observe the situation. When the solar halo appears, don't watch it with the naked eye for a long time to avoid burning your eyes. When it's going to rain, a bird-feather cirrus cloud often appears in the sky, and then a rainy cirrostratus will appear in the air about 6 kilometers below the cirrus cloud. Due to the low temperature, the water droplets in the cloud become small hexagonal ice crystals. Sunlight can pass through clouds, that is, it is refracted on small ice crystals. There seems to be a circle around the sun, showing spectral color from the inside out. This is a solar halo.