Florida noir has deep roots, starting in the 1940’s with hard-boiled detective fiction like John D. MacDonald’s Travis McGee character. Fictional detectives, unraveling Florida mysteries, the unique atmosphere as part of the backdrop influencing characters and their actions, are all part of the Florida noir appeal. Florida fiction, along with non-fiction, even the medium of film usually draw on atmosphere, and with fiction, this affects plot as well.
In Florida fiction, an example would be Travis McGee and his boat, the Florida waters, his actions throughout, and in the medium of film, Body Heat--the sticky, humid Florida weather, how it intensifies the heated passion between Kathleen Turner and William Hurt. Both examples are part of the Florida noir formula, and fall into the Florida noir genre.