In the morning, when there is red light in the sky, what can we imagine to predict the weather?

Stay indoors at sunrise and travel thousands of miles at sunset.

In the morning, the sun shines on the clouds in the west and is scattered by the clouds, making the clouds turn deep red. This is morning glow. It shows that there are clouds in the western sky, and the morning clouds are mainly caused by the system weather. In the future, as the weather system moves eastward, the local area will gradually be affected by it, and the weather will turn rainy. On the other hand, the morning glow shows that there are clouds in the morning, which shows that the sky is not very stable. When the sun rises, the thermal effect will be enhanced, the convection will develop further, and the clouds will develop further, which is easy to cause rainy weather.

There is a proverb in the Tang Dynasty, such as "It rains in sunny days".