At first , the storm was expected to continue moving northwestward and hit Guam . However , early on October 9 , it turned to the west , passing about 45 km ( 28 mi ) south of the island . Initially , the storm was predicted to continue northwestward and make landfall on Guam , though early on October 9 it turned to the west , passing about 45 km ( 28 mi ) south of the island .