Anyone who wants to see what a Cat 4 can do, search Google images for hurricane Hazel.
https://www.ourstate.com/hazel/
Sobering read.
Especially the part about the surge.
It’s the surge that kills the most people in these.
https://www.youtube.com/results?search_query=katrina+surge
Anyone who is staying on any of those FL barrier islands should have to watch some of those videos. So they know what to do (leave beforehand! duh!)
https://www.wunderground.com/education/Katrinas_surge_part13.asp (long read, but good. 911 operators would get a call that would just be a scream and the silence...during the surge)
Hazel took out a large silo on my grandfather’s farm...we could see the wreckage out the kitchen window for years afterward...