I like the idea of spawning a weak storm to show what it does! That's pretty cool honestly, and solves the problem of people not knowing what the storm does and having to wait 6 minutes to find out. I am weighing between a separate tutorial versus the current in-game tutorial style that lets you continue organically.
Pros of a standalone tutorial like you suggested is the player doesn't feel the need to rush. They can take the time to explore without consequences!
The cons is that people prefer to jump into the main game and a tutorial that forces you to do certain actions just to go through motion and get to the real game can be off-putting. Hmm