ROCKDALE COUNTY – (WAOK/AJC)  Storms late Tuesday,  produced dangerous lightning that may have sparked a house fire,   and hit a cell tower in Rockdale County.     Fire investigators who fought a fire in a one story ranch,  that was heavily damaged on Lou Drive in central Rockdale county,  say no one was hurt in the late afternoon blaze.   Officials say several lightning strikes were reported in Rockdale, including one,  at the county’s 911 Center tower.   More storms were expected to move through the Atlanta area Tuesday evening.