What kind of weather does the fish scale cloud represent?

Scale clouds are called "semi-transparent clouds of cumulus clouds" in meteorology, which is a weather phenomenon when strong cold air comes in autumn and winter. Generally speaking, before the cold air comes, the clouds are high and the number is small. After the cold air comes, the clouds gradually get lower and thicker, and the citizens will see thick clouds, and then it will rain. "It's a fish scale day, it's windy and it doesn't rain." Carp spots are thin clouds like carp spots in the sky, which are distributed in small pieces in the sky. After accumulating the experience of weather conditions, the ancients thought that tomorrow's sun would be brilliant, that is, "tomorrow's sun won't have to turn over the valley." What the landlord saw should be carp spots.