1984–85 South Pacific cyclone season
| 1984–85 South Pacific cyclone season | |
|---|---|
Season summary map
|
|
| Seasonal boundaries | |
| First system formed | December 26, 1984 |
| Last system dissipated | March 20, 1985 |
| Strongest storm | |
| Name | Hina |
| • Maximum winds | 220 km/h (140 mph) (10-minute sustained) |
| • Lowest pressure | 910 hPa (mbar) |
| Seasonal statistics | |
| Total depressions | 9 |
| Tropical cyclones | 9 |
| Severe tropical cyclones | 5 |
| Total fatalities | Unknown |
| Total damage | Unknown |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| Category 3 severe tropical cyclone (Australian scale) | |
| Category 2 tropical cyclone (SSHWS) | |
  |
|
| Duration | January 19 – January 21 |
|---|---|
| Peak intensity | 140 km/h (85 mph) (10-min) 960 hPa (mbar) |
| 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) |
| Category 2 tropical cyclone (Australian scale) | |
| Tropical storm (SSHWS) | |
  |
|
| Duration | March 2 – March 9 |
|---|---|
| Peak intensity | 95 km/h (60 mph) (10-min) 985 hPa (mbar) |
| 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) |
The 1984–85 South Pacific cyclone season was a near normal tropical cyclone season, with nine tropical cyclones occurring within the basin between 160°E and 120°W. The season ran from November 1, 1984, to April 30, 1985, with tropical cyclones officially monitored by the Fiji Meteorological Service (FMS), Australian Bureau of Meteorology (BoM) and New Zealand's MetService. The United States Joint Typhoon Warning Center (JTWC) and other national meteorological services including Météo-France and NOAA also monitored the basin during the season. During the season there was nine tropical cyclones occurring within the basin, including three that moved into the basin from the Australian region. The BoM, MetService and RSMC Nadi all estimated sustained wind speeds over a period of 10-minutes, which are subsequently compared to the Australian tropical cyclone intensity scale, while the JTWC estimated sustained winds over a 1-minute period, which are subsequently compared to the Saffir–Simpson hurricane wind scale (SSHWS).
During November and December no significant tropical cyclones developed in or moved into the basin in the region,
An unnamed tropical cyclone existed from December 26 to December 28.
Tropical Cyclone Monica existed from December 29 to December 30.
Tropical Cyclone Drena existed from January 9 to January 16.
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. 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. 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. During January 15, Eric passed near or over Espiritu Santo, as it continued to intensify before it turned and accelerated south-eastwards. 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.
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