But now we have a bunch of kids in different schools and haven't updated our plan.
Does anyone have a plan for what happens if we have a really bad event?
I don't know how much you can plan for that other than "if it happens, try to get home", and then all the usual prepper stuff.
Depending on the kids' ages, you can teach them quite a lot about the Earth's magnetic field and why the aurora concentrates at the poles, how the high-energy particles light up the sky (it's a lot like a neon light), and how the atmosphere shields us from any danger despite the spectacular show.