>so this is not well defined as with Earthquakes? I'm not sure what you mean by this. There are a lot of different seismic magnitude scales and seismic intensi

>so this is not well defined as with Earthquakes? I'm not sure what you mean by this. There are a lot of different seismic magnitude scales and seismic intensity scales, and they measure different things. Earthquakes are a fundamentally different kind of natural effect too, and in turn the goal and messaging involved with scales is different. Amongst other things, the temporal scale and foreknowledge is quite different and in turn what preparatory actions can be taken vary. Saffir–Simpson is more of an intensity scale, and is well defined for its original design purpose. Whether that circumstances have evolved sufficiently that it needs to be updated or is simply irrelevant now is a different question.