Is the west wind strong at level 3~4?

I learned a wind song when I was studying geography in high school. I hope it can help you.

Level 0 windless smoke;

Level 1 soft wind smoke is slightly slanted;

Level 2 light wind makes the leaves ring;

Level 3 breeze causes tree branches to sway;

Level 4 breeze causes dust to rise;

Level 5 clear wind causes water to ripple;

Level 6 strong wind causes big trees to sway;

Level 7 gale makes it difficult to walk;

Level 8 wind breaks trees;

Level 9 chimneys are destroyed;

Level 10 wind uproots trees ;

A Category 11 storm is rare;

A Category 12 hurricane has huge waves.

Of course, I later saw many versions of Fengli Song, which basically have the same meaning.

The level 3 to level 4 winds you mentioned are gentle breezes and moderate winds, so they are not very strong.