Here's a sample of before & after imagery of battered islands and structures in southern Louisiana:
Direct Relief put together
a KML layer to aid in their efforts around Hurricane Gustav. They mapped the federally qualified community health centers and free clinics along the U.S. Gulf Coast that make up the core of the medical “safety net” for the region. Combining these facility locations with the path of the hurricane, they are able to target medical material, financial, and other assistance to those places that need it most. The green icons in the layer indicate clinics that received medical supplies from Direct Relief prior to the arrival of the hurricane, the blue icons correspond to non-profit free clinics, and the red correspond to federally qualified community health centers.