Where does the wind blow?
Want to figure out wind, weather, and ocean current patterns for an arbitrary world?
I'm not a metrologist, nor do I even play one on TV. I do have an insatiable appetite for odd topics, especially geographically-related ones. The level of expertise I try for is enough to make a plausible fictional climate. And remember while I present this, that I'm mostly talking climate, not weather. Weather systems will override these average winds often. This tutorial should help you figure out believable winds across your own world map. Since he was asking about how to ensure a certain area really *would* be desert, I've started with Slipguard's planet Megalaos.
The general surface winds across an idealised globe, whose axis is vertical, and whose surface is uniform, would be something like this. (Non-idealized Megalaos used as a background).