Increasing hurricane risk yes, but also a dysfunctional insurance market. There's a business model where roofing companies will approach homeowners telling them they have hurricane damage and are eligible to receive a free roof. The hurricane might passed through years before, but any damage that was overlooked is still the responsibility of the insurance company. The homeowners are surprised to learn that their roof has damage, since they haven't noticed anything wrong (and there is in fact no damage), but free is free, so they sign the contract. The roofing company files a claim, the insurance company denies it, the roofing company sues, and since a lawsuit costs more than a roof, the insurance company backs down. Then after this has happened repeatedly, the insurance company raises their rates or leaves the state.