It’s been so long that I’ve seen one in-game so idk if it’s either normal or abnormal. The storm cloud is really huge too, I seriously don’t think this is normal.
Bro that tornados tiny, mines way bigger
Im sure it has a great personality
I think every tornado (in bronze and nimbus) has the same size, kind of hard to tell since weather events don’t spawn in servers after a very short time so
yes.
Just a normal self pillar explosion
My guess is that this is one of many tornado variants (because yes, they do variants), or a bugged tornado (as I have not once seen such a tall one before).
They should
Is that taller than the sky islands 
Imagine just sleeping in your home when a huge tornado just comes out from nowhere below the clouds
Well, that’s one of the risks of living on sky islands. Of course there’d be drawbacks to condensing water droplets and infusing it with magic energy to create new land to occupy.