MOAB -- Paragliders have ended a search for a missing Moab skydiving instructor without finding a trace of him.
Three men flew motorized paragliders over a 55-square-mile area around Moab on Saturday and Sunday in an effort to find 37-year-old David Brown, said family friend Micaelo Choo of Sandy.
A threat of thunderstorms caused the paragliders to halt the search after nearly three hours in the air Sunday morning, she said.
Ryan Shaw, owner of Paradrenalin of Phoenix, said he can "guarantee" that Brown is not in the large swath of backcountry that he and two other paragliders thoroughly searched.
Paraglider Ennis Zajmi, a Brown friend, agreed. "We can check that (area) off our list, and the family can feel like they've done everything they could to look for Dave," he said.
Moab police continue to investigate the disappearance of Brown, who was last seen walking into his Moab trailer on the afternoon of June 29 by his boss and longtime friend, Clint MacBeth, owner of Skydive Moab.
It will be the family's call as to how long to continue a volunteer search for Brown, Choo said.