The big problem with FL is that in the event of nuclear war the state is full of high value targets. That said, the prevailing winds would blow any fallout from west to east and extreme SW Fl might be a good place to live out the apocalypse.
Those maps are so old, obsolete, and exaggerated, they are laughable.
Oh...and welcome to FR. Whereabouts in FL are you? We have a place in Longboat Key, FL. ...need a Freeper meetup if you are in Sarasota. Good eats down there.