 The typhoon maintained this strength for roughly twelve hours before slightly weakening as it neared Luzon.At approximately 1200 UTC on December 2, Nanmadol made landfall near Casiguran, Aurora with winds of 140 km/h (85 mph).Due to the rapid motion of Nanmadol, the typhoon crossed Luzon in under six hours, emerging into the South China Sea before 1800 UTC on December 2.