1984–85 South Pacific cyclone season

Category 1 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	December 26 – December 28
Peak intensity	85 km/h (50 mph) (10-min); 987 hPa (mbar)

An unnamed tropical cyclone existed from December 26 to December 28.

Category 2 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	December 28 – January 3
Peak intensity	110 km/h (70 mph) (10-min); 975 hPa (mbar)

Tropical Cyclone Monica existed from December 29 to December 30.

Category 1 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	January 9 – January 16
Peak intensity	85 km/h (50 mph) (10-min); 987 hPa (mbar)

Tropical Cyclone Drena existed from January 9 to January 16.

Category 3 severe tropical cyclone (Australian scale)
Category 3 tropical cyclone (SSHWS)
Duration	January 13 – January 20
Peak intensity	150 km/h (90 mph) (10-min); 955 hPa (mbar)

On January 13, TCWC Nadi started to monitor a shallow depression that had developed within the monsoon trough about 725 km (450 mi) to the west of Espiritu Santo, Vanuatu.[3] Over the next day the system moved eastwards and developed further as gale-force winds developed near the systems centre before the JTWC initiated advisories on the system and designated it as Tropical Cyclone 11P during January 14.[3][4] The system was subsequently named Eric by TCWC Nadi as it moved closer to Espiritu Santo and became equivalent to a category 1 tropical cyclone.[3][5] During January 15, Eric passed near or over Espiritu Santo, as it continued to intensify before it turned and accelerated south-eastwards.[3] Eric subsequently became equivalent to a category 3 severe tropical cyclone early the next day, before an Air Pacific flight from Fiji to the Solomon Islands located the systems eye on radar.[3]

During January 17, Eric's well defined eye came into the range of Nadi airports surveillance radar, before TCWC Nadi estimated that Eric had peaked with 10-minute sustained wind-speeds of 150 km/h (90 mph).[3][5] During that day Eric's eye seemed to contract to around 15 km (10 mi) as it made passed through Fiji's Western Division and made landfall on the Fijian main island of Viti Levu about 10 km (5 mi) to the south of Nadi.[3] After the system had made landfall, the JTWC estimated that Eric had peaked with 1-minute sustained wind speeds of 185 km/h (115 mph), which made it equivalent to a category 3 hurricane on the SSHWS.[6] The system subsequently passed near or over Fiji's capital: Suva before emerging into the Korro Sea and weakening. Eric subsequently passed through the Tonga's Ha'apai islands just to the south of Nomuka during January 18, before it gradually weakened and was last noted during January 20, over 1,800 km (1,120 mi) to the south of Papeete, French Polynesia.[5][6]

Category 3 severe tropical cyclone (Australian scale)
Category 3 tropical cyclone (SSHWS)
Duration	January 16 – January 28
Peak intensity	150 km/h (90 mph) (10-min); 955 hPa (mbar)

Late on January 16, Tropical Cyclone Nigel moved into the South Pacific basin from the Australian region. During the next day the system continued to move eastwards and developed an eye, before it became equivalent to a modern-day category 3 severe tropical cyclone.

Category 4 severe tropical cyclone (Australian scale)
Category 2 tropical cyclone (SSHWS)
Duration	January 19 – January 21
Peak intensity	165 km/h (105 mph) (10-min); 936 hPa (mbar)

At around 1300 UTC on January 19, Severe Tropical Cyclone Odette moved into the South Pacific Basin from the Australian Region.

Category 3 severe tropical cyclone (Australian scale)
Category 1 tropical cyclone (SSHWS)
Duration	January 25 – January 30
Peak intensity	150 km/h (90 mph) (10-min); 955 hPa (mbar)

During January 26, the FMS reported that a depression was located within the vicinity of the Southern Cook Islands about 150 km (95 mi) to the west-northwest of the island of Aitutaki.

Category 2 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	March 2 – March 8
Peak intensity	95 km/h (60 mph) (10-min); 985 hPa (mbar)

Gavin caused widespread flooding within the western division of Fiji, with seven people killed as a result.[7]

Category 5 severe tropical cyclone (Australian scale)
Category 4 tropical cyclone (SSHWS)
Duration	March 11 – March 20
Peak intensity	220 km/h (140 mph) (10-min); 910 hPa (mbar)

Hina was one of the most intense tropical cyclones ever recorded in the South Pacific basin. Having a distinct rainband and well defined outflow with low wind shear and warm water temperature, Hina underwent a period of Explosive Deepening (rapid intensification) The storm continued southward. Due to unfavorable conditions and an approaching Eyewall Replacement Cycle, the storm weakened into a tropical storm. As its center became ill-defined, the storm lost winds of tropical storm force and weakened into a tropical depression. The remnants dissipated some time later.