Farther west , Dauphin Island in Alabama endured Change_event_time wind gusts as high as and a significant storm Catastrophe surge .

The Three Mile Island accident was a partial meltdown Catastrophe of reactor number 2 of Three Mile Island Nuclear Generating Station ( TMI-2 ) in Dauphin County , Pennsylvania , near Harrisburg and subsequent radiation leak Reveal_secret that occurred Coming_to_be on March 28 , 1979 .

From then on , Frederic moved Motion northwestward , intensifying Cause_change_of_strength to its peak intensity in the Gulf of Mexico with winds of 130 mph ( 210 km/h ) on September 12 , shortly before making landfall at Dauphin Island , Alabama just below the state line between Alabama and Mississippi .