What do the four raindrops represent?

Rainstorm. There are four raindrops in the weather forecast representing the rainstorm level. 1 raindrops are light rain, two raindrops are moderate rain, three raindrops are heavy rain and four raindrops are heavy rain. The symbol "there are raindrops under a cloud" means that it will rain the next day, and the number of raindrops under the cloud represents the amount of rainfall.