Georgia is bracing for potentially far-flung impacts from Hurricane Irma, which could swamp the coast with storm surge and topple trees and power lines in Atlanta. The National Hurricane Center placed the entire Georgia coast under a hurricane watch Saturday as residents packed their cars and trickled onto the highways in six counties under a mandatory evacuation. A hurricane watch was also issued for the South Carolina coast from the Georgia line to Edisto Beach, about 40 miles southwest of Charleston.