Late on January 4, 2009 the Regional Specialized Meteorological Center in Nadi Fiji (RSMC Nadi), reported that a tropical disturbance had developed about 655 kilometres (405 mi). Convection had been persistent for the last 12 hours but was poorly organized, whilst a cyclonic circulation was evident in an area of low to moderate vertical wind shear. Early the next day RSMC Nadi reported that the disturbance had developed enough to be classified as Tropical Depression 04F however the low level circulation center was exposed with convection displaced to the north of the system.
On January 6, the Fiji Meteorological Service's director Rajenda Prasad, warned that tropical depression 04F was likely to bring monsoon like weather conditions to the whole of Fiji. He stressed whilst the depression could intenisfy further into a cyclone it wasnt expected to directly affect the country. The next day it was reported that a strong wind warning and several flash flood warnings had been put in place for most parts of Fiji. Evacuation centers were also activated in Fiji whilst people living in low lying areas were urged to move to higher grounds as there was a possibility of flash flooding. All Pacific Sun flights to Kadavu, Savusavu, Taveuni, Malolo and Mana were cancelled.
^Prasad, Rajendra; Fiji Meteorological Service (1990). DeAngellis, Richard M, ed. Tropical Cyclone Rae (Mariners Weather Log: Volume 34, Issue 3: Summer 1990). United States National Oceanic and Atmospheric Administration's National Oceanographic Data Service. p. 43. Retrieved May 15, 2013.
^Browne M L; Krishna, Ram (1983). "Tropical Cyclone 'Oscar'". Weather and Climate (The Meteorological Society of New Zealand) 3 (2): 59–65.