reporter: another urgent threat. 40,000 residents advised over night of evacuate. fears the could breech causing katrina style flooding. picking up debris that could turn into project tile missiles in hurricane force winds. and at zoo miami. animals moved inside. all 3,000 animals will shelter in place. with the storm less than 16 hours away, normal bustling communities including south beach, virtual ghost towns. the damage that s been done, a look at the destruction irma has already caused.