Here's what Brf wrote in another thread
Under your /programsfiles/tropico directory, create a new directory called "Events".
Under the events directory, create a folder called "MoreRain".
In this morerain folder create the textfile "Rain.evt" containing the following lines:
GeneralEffect Addto Cloudrate 100
I see now that the file is in a subdirectory of the events folder. I didn't try this...is it necessary, Brf? For example, would it work on a PC if you put Rain.evt directly in the Events folder?
It would also be useful to me if someone with PC Tropico would list the folders that "naturally" occur in the Program Files/Tropico folder.