Are you serious?! What about building insurance?
You can get flood insurance in many areas)maybe not the worst ones), but if its likely to get flooded you are going to have to pay a lot. Most just take the gamble or arnt even aware of the risk. The trouble is only starting if we get the possible cyclone.
At least it will be good for the wildlife, although i havnt even seen any snakes yet i think they will be well fed for a long time.