Traditional Culture Encyclopedia - Weather inquiry - What's the word for particularly cloudy weather?

What's the word for particularly cloudy weather?

Red clouds are gathering.

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

[example] ~, cold fog is colorful. (Xu Ming Lin Zhong's "The Love of the Gods" is back to 89)