the storm. >> coastal waters rise. lifetime storm surge. along florida's gulf coast. >> could reach 10 to 15 feet in some areas of the big ben. that's life-threatening. if you are there without, hits gonna be difficult to survive that. >> the tampa bay area as well. >> there will be flooding. it'll be worse. 46 inches of rain in a short amount time. >> mandatory, voluntary evacuation orders issued for parts of 22 counties. including coastal, low lying areas. >> take the effort to evacuate to a safe shelter. >> all residents are sure they want. only >> a homes here. my life here. >> coast guard preparing rescue helicopters.