Did Kunming, Lijiang and Japan flood in July?

... you worry too much. The drought in Yunnan has just ended, and now it is because of the long rainy season.

All dams in some places may have some impact, but for large ones,

At the very least, the big tourist spots you are going to have little impact. The most important thing is that the rain and wet road conditions are not good.

You'd better avoid going to places like Lugu Lake.