Just some friendly advice, not trying to be a discouraging gate keeper: Beginners often put way too much emphasis on their rigs and gear. Maybe it's this need to feel part of the group or to look legit. And some chasers just want to look like chasers, rather than actually chase. That's fine too. To me, it's like having a show car that you take to meets, rather than being an actual racer.
But for beginner chasers I'd recommend starting with a minimal setup. Have one camera and learn how to squeeze the most out of it. With chasing, and art in general, I feel like people get much better results when they have to be creative with limited tools, rather than being mediocre with gobs of tech. Start small and local, then figure out what you need as you go along.
How about one 360 cam? I've always found these ultrawide action cameras and 360 cameras to be a fallback, backup. Something like, "I would have missed capturing this entirely if it weren't for this camera", rather than a primary means of documenting the storm. They're so wide and relatively low resolution as a result that the quality can really suffer unless you're directly underneath whatever it is you're filming. And as a beginner, I hope you're not directly underneath the thing, but watching the whole process from the clear air ahead of the storm. In that position, one of these cameras is nice for getting a wide shot of the structure or having a continuous shot of the chase, but managing multiple cameras concurrently, most of which will be recording junk, sounds like an onerous burden for a beginner