Umbrellas

[…] Umbrellas have always been a mystery to me because I can’t understand why they appear just before it starts to rain.
[…] Do the umbrellas know that it is going to rain? because I know that people don’t know. The weatherman says that it will rain tomorrow but it doesn’t and you don’t see a single God-damn umbrella. Then the weatherman says that it will be a sunshiny day and suddenly there are umbrellas everywhere you look, and a few moments later, it starts raining like hell.
Who are these umbrellas?