Today is mostly sunny with a chance for clouds and thunderstorms in the evening, followed by torrential down pours through the night.
Well that escalated quickly. How do you handle changing weather? How does your character handle it? What effects are brought about by the ever present and changing patterns of precipitation? Do your characters get stuck on an island, or swept away in a flash flood? What if it is winter?
Write through a scenario or two and explore the possibilities that ensure tragedy or triumph for the prepared and not so prepared.
Happy writing and may the creative forces be with you.