BUFORD -- After a fifth day of unsuccessful searching for a Cobb County man presumed drowned on Lake Lanier, authorities are scaling back their efforts.
Jeffrey Nause, 44, has been missing since after midnight Saturday when he jumped from a friend's sailboat north of Lake Lanier Islands. Divers and sonar searches have been steady since the disappearance, but Hall County Sheriff's Office spokesman Sgt. Stephen Wilbanks said Wednesday that the former will now be only on stand-by.
"Surface and sonar searches will continue on Thursday and Friday," Wilbanks said, "but dive operations will be on stand-by pending the results of those searches."
Hall County divers will be available if searches produce a possible target area, Wilbanks said. Dive operations will also be suspended for the weekend due to heavy boat traffic, but searches will continue through Sunday.
"Continuation of the operation will be reassessed prior to Monday," Wilbanks said.
Agencies involved in the search include the Georgia Department of Natural Resources, U.S. Army Corps of Engineers and the U.S. Coast Guard Auxiliary, as well as fire departments from Hall, Dawson and Forsyth counties.
Nause is a Georgia Tech alum and the CEO of an Atlanta semiconductor company called Cermet Inc. The company develops semiconductors -- electrical components used with computer chips or other electronic devices -- for DVD and lighting, its website says.
The search for Nause's body has been complicated by heavy underwater timber, cold water temperatures and several other factors, Wilbanks said Wednesday.
"Compounding the physical difficulties of the search are the facts that the incident occurred during the hours of darkness, the vessel was moving at the time, and there was no GPS equipment on board to mark an exact location," he said.