Fu Baoshi (1904-1965) frequently painted rainy landscapes and waterfalls. He lived through all the changes of the twentieth century, developing his own distinctive style. The Met exhibition Chinese Art in an Age of Revolution, featured Fu Baoshi. There is a video lecture of the exhibition and his life, though the images of the paintings are a bit fuzzy. You can see them better if you scroll down the exhibition site.
He did not only paint water. The Ashmolean has a charming painting of a scholar in his studio.