Why does the morning glow indicate rain and the sunset glow indicates sunny day?

Beautiful morning glow and sunset glow sometimes appear in the sky. This is because sunlight is scattered on clouds containing many small water droplets. Under normal circumstances, the morning glow indicates that it will rain during the day; The sunset glow indicates that it will be sunny the next day. Therefore, there is a proverb "Don't go out at sunrise, but go to Wan Li Road at sunset".

What is the reason?

It turns out that this bright red and gorgeous brilliance is called "Xiaxia" in meteorology, called Zaoxia in the morning and Sunset in the evening. When the sun is below the horizon, it is a colored light band formed by sunlight scattering through the atmosphere. Near the horizon, because the sunlight passes through the thickest atmosphere, all kinds of short-wavelength light are almost scattered, so what we see is the residual red light. Further up, the atmosphere through which sunlight passes is slightly thinner and less scattered, so it appears orange. The scattering of the atmosphere is related to the amount of water droplets and dust in the atmosphere and the degree of the atmosphere. Before the weather turned to rain, water droplets and dust in the air increased, and the color of summer became redder.

The appearance of the morning glow shows that the water vapor and water droplets in the atmosphere have increased, and the clouds have invaded the local area from the west. It can be predicted that it will turn rainy soon in the future. The appearance of the sunset glow indicates that the rain in the west has stopped and the weather has turned fine. Moreover, red and golden sunsets often indicate that the atmospheric stability has improved, so it can be predicted that the weather will clear up in the future.