 On 9 December, deep convection over the LLCC weakened significantly when Hagupit arrived at the South China Sea and turned westward, although good poleward outflow channel tapping into the mid-latitude westerlies helped the system sustain its minimal tropical storm intensity.Soon after that, due to a marginally favorable environment, deep convection over the partially exposed LLCC increased again.Hagupit briefly intensified in the afternoon on 9 December, under moderate vertical wind shear offset by vigorous poleward outflow into the strong westerly flow to the north.