I don't know of any "harbor" that requires people to leave. I know of plenty of marinas that have the word "harbor" in their name, my marina included, who do.
But, as much as I hate to bring up Floridaanchoring laws in any context, I wonder what the policy is or will be for mooring fields during hurricanes. From what I've heard and seen about how many were installed, I wouldn't be sure a lot of them would be capable of holding a good sized boat in a real blow.
It will be interesting to see what happens the first time with those.
From St. Augustine's web site. I think this would give me pause.
"City moorings are not rated for strong storms or hurricanes because of an array of stress factors. Accordingly, the City can not ensure that the moorings will hold in such conditions."
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Founding member of the controversial Calypso rock band, Guns & Anchors!
I was told by bobbies mega yard st martin that they require boats which are hauled during hurricane season to have the mast removed. This requires a crane and a rigger: 2K to remove + 2K to re-install.