mandatory evacuation notice could begin to feel the effects of the storm as early as friday night. this is a catastrophic storm that our state has never seen. reporter: over 30,000 people have left the keys and mandatory evacuationvise been ordered across southern and eastern florida counties including miami dade and broward. two nuclear power plants will be shut down until the storm passes. the size of the storm, it is wider than our entire state and could cause major and life threatening impacts from coast to coast. reporter: some in florida stocking up on food and water while others packing up and heading out. gas lines stretching for blocks. as more and more stations are running low on fuel tonight traffic on i-95 is backed up for miles. do not believe you can ride this storm out. you can rebuild your home and get possessions again.