Idioms describing bad weather.

Thick clouds cover the sky, which indicates that it will snow.

Tang yinming

Explanation: the general meaning is red, sometimes it refers to; Sometimes it refers to the evenly distributed clouds before it snows. Thick clouds covered the sky, indicating that heavy snow was coming.

The source "The Book of Songs Xiaoya New Nanshan": "The sky is the same as the clouds, and the rain and snow are like notes."

Structural subject-predicate idioms

Used as predicate and attribute; cloud over

Synonyms Dark clouds are gathering.

Cold fog is colorful. (Xu Ming Lin Zhong's "The Love of the Gods" is back to 89)