How does the weather proverb "Fish scales are all over the world" say?

Today is a fish scale day, it's windy and it doesn't rain.

In the blue sky, you can sometimes see neat and compact white clouds, like fish scales, rippling with microwaves. People call it "Fish Scale Day" and cirrocumulus in meteorology. Cirrocumulus usually appears at an altitude of over 5,000, and only lasts for a few minutes to more than an hour after its formation. The appearance of this cloud indicates that a trough of low pressure is approaching over the local area. The weather turns from sunny to rainy, and there will be wind and rain in a day or two.