I just read that Maria could be 140mph by the time it reaches

[bluepen]

44. Sometimes. Categories don't take storm surge into consideration

and that's often the worst aspect of a storm. There are Cat 2s with bigger storm surge than Cat 4s. And of course, the landfall timing matters with regard to where the tide is in its cycle. Saffir–Simpson is all wind.

This is why there's talk of changing the SSHWS. And as the sayings go: "run from water, hide from wind" and "evacuate for water, not wind."