If you don't hear it, you got hit, so never mind. Clouds just keep circling the earth around and around. There is not much else to do. Water vapor gets together in a cloud. When it is big enough to be called a drop, it does.
Humidity is the experience of looking for air and finding water.
We keep track of humidity in the air so we won't drown when we breathe. Rain is saved up in cloud banks. Rainbows are just to look at, not to really understand. The wind is like the air, only pushier. A blizzard is when it snows sideways.