Meteorological history | |
---|---|
Formed | March 2,1985 |
Dissipated | March 9,1985 |
Category 2 tropical cyclone | |
10-minute sustained (FMS) | |
Highest winds | 95 km/h (60 mph) |
Lowest pressure | 985 hPa (mbar);29.09 inHg |
Tropical storm | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 100 km/h (65 mph) |
Overall effects | |
Fatalities | 3 |
Damage | FJ$1 million |
Areas affected | Vanuatu,Fiji |
Part of the 1984-85 South Pacific cyclone season |
Tropical Cyclone Gavin was the third named tropical cyclone to impact Fiji,as well as the fourth to impact Vanuatu,during the 1984-85 South Pacific cyclone season. The system was first noted as a tropical depression during March 2,while it was located within a monsoon trough of low pressure in between Espiritu Santo and Rotuma. Over the next couple of days the system gradually developed further,before it was classified as a tropical cyclone and named Gavin during March 4.
During March 2, the Fiji Meteorological Service reported that a tropical depression had developed within a monsoon trough, in between Espiritu Santo and Rotuma about 450 km (280 mi) to the northwest of Fiji. [1] [2] Over the next couple of days, the system gradually developed further as it moved southwards, while moderate to strong winds were recorded in Vanuatu's southern islands of Aneityum and Tanna. [1] [2] During March 4, the United States Joint Typhoon Warning Center initiated advisories on the depression and designated it as Tropical Cyclone 27P, while the system was located about 300 km (185 mi) to the northeast of Port Vila in Vanuatu. [3] Later that day the FMS named the system Gavin, after it had become equivalent to a category 1 tropical cyclone on the modern day Australian tropical cyclone intensity scale. [1] [3] At this time, Gavin was estimated to have an unusually large area of gale-force winds, with winds extending out to about 550 km (340 mi) in its northern semicircle and 280 km (175 mi) in its southern semicircle. [1]
During March 5, the system intensified slightly and attained storm-force winds as it moved south-eastwards, before the FMS reported that Gavin had peaked as a category 2 tropical cyclone with 10-minute sustained winds of 95 km/h (60 mph). [1] [3] Over the next couple of days, as the system moved south-eastwards brushed Fiji, there were no significant changes in Gavin's intensity, however, the wider area of gales moved into the system's semicircle. [1] During March 7, the JTWC reported that the system had peaked with 1-minute sustained wind speeds of 100 km/h (65 mph), before Gavin started to weaken and lose its tropical characteristics, as it accelerated south-eastwards towards higher latitudes. [1] [3] Later that day, the FMS handed the primary warning responsibility for the system to the New Zealand Meteorological Service (NZMS), after Gavin had moved out of their area of responsibility. [1] [3] During March 8, the NZMS reported that the system had become an extratropical depression after it had lost most of its tropical characteristics, before it was last noted during the following day, while it was located about 2,100 km (1,305 mi) to the southeast of Wellington in New Zealand. [1] [3]
Gavin was the fourth tropical cyclone to impact Vanuatu during the 1984-85 season, after Severe Tropical Cyclones Eric, Nigel and Odette had impacted the island nation during January 1985. [2] [4] Heavy rain and moderate to strong winds were reported in the island nation at various times between March 2 - 5, however, there was no significant damage or effects reported in the island nation. [2] [4] The system was also the third named tropical cyclone to impact Fiji during the 1984-85 season, after Severe Tropical Cyclones Eric and Nigel had impacted the islands during January 1985. [1]
During March 4, before the system was named the FMS issued a tropical cyclone alert for the whole of Fiji, before issuing a gale warning for the Mamanuca Islands, part of Viti Levu, as well as the islands of Vatulele, Kadavu, Ono, Dravuni and Beqa, after it had developed into a tropical cyclone. [1] Winds of near gale force or stronger that emulated from Gavin's northerly quarter affected most parts of Fiji, for varying periods between March 5 - 7. [1] This included the northern and western parts of Viti Levu and islands in the Yasawa and Mamanuca Groups, where strong winds of above 45 km/h (28 mph) were recorded for around 40 hours. [1] The wind caused relatively minor damage to various power and communication lines, relief tents, other temporary shelters, crops and vegetation. [1] However, the majority of the damage associated with Gavin was attributed by the FMS to the prolonged heavy rainfall, after rainbands associated with the monsoon trough had started to impact the island nation during March 2. [1] Over the next few days, as the system intensified and moved closer, the rainfall became heavier and more widespread, with the heaviest falls occurring between March 4 - 6, while the highest total of 697 mm (27.44 in) was reported in Monasavu. [1] This heavy rain brought widespread and significant flooding to the towns of Ba, Nadi and Lautoka, as well as other low-lying areas, along the rivers of Viti Levu, including the banks of the Rewa and the Sigatoka rivers. [1] At the height of the cyclone, seven people went missing, while local media reported that three people had died, which included two drownings and a person who was electrocuted when a tree, brought a power line down. [1] [5]
Unofficial estimates of the damage caused by Gavin were placed at about a $1 million Fiji dollars . [1] Several ships were also impacted by Gavin including the Wellington Star which sustained structural and electrical damage, while the Matthew Flinders dragged its anchor and was grounded in Lautoka. [1] About a weak, after Gavin had dissipated, a major landslide occurred in Namara village in the Yasawa Islands, which prompted the relocation of the village. [1] The FMS subsequently speculated that the prolonged heavy rain associated with Gavin, had partially contributed to the landslide. [1] During March 10, a shallow tropical depression developed within the monsoon trough over Vanua Levu and moved westwards into the Pacific Ocean, where it developed into Tropical Cyclone Hina. The system subsequently moved north-westwards and impacted Vanuatu as well as the Solomon Islands, before it started to move south-westwards and impacted Fiji between March 16 - 17.
Severe Tropical Cyclone Zoe was the second-most intense tropical cyclone on record within the Southern Hemisphere and was the strongest tropical cyclone worldwide in 2002. The system was first noted on December 23, 2002, as a tropical depression that had developed, within the South Pacific Convergence Zone to the east of Tuvalu. Over the next couple of days, the system moved southwestwards and crossed the International Dateline early on December 25. After this, the system became better organized and was declared to be a tropical cyclone and named Zoe later that day. Zoe subsequently rapidly intensified in very favorable conditions as it continued to move west-southwest towards the Solomon Islands. The system subsequently became a Category 5 tropical cyclone on both the Australian tropical cyclone intensity scale and the Saffir-Simpson hurricane wind scale on December 27. The system subsequently affected the Solomon Islands Temotu Province during that day, before it peaked with 10-minute sustained wind speeds of 240 km/h (150 mph). As the system peaked, it performed a small clockwise cyclonic loop within the vicinity of Tikopia island, as a result of the steering flow over the cyclone becoming weak and variable. The system subsequently started to move towards the southeast during December 29, in response to a strengthening steering flow, provided by an upper level trough of low pressure and a baroclinic system near New Caledonia. Over the next few days the system weakened and degenerated into a tropical depression during January 1, 2003. The system was subsequently last noted during January 4, while it was located to the southeast of New Caledonia.
The 2004–05 South Pacific cyclone season was an above-average season in which tropical cyclones formed within the South Pacific Ocean to the east of 160°E. The season officially ran from November 1, 2004 to April 30, 2005, however a tropical cyclone could form at any time between July 1, 2004 and June 30, 2005 and would count towards the season total. The season got off to an early start, when Tropical Depression 01F developed near the Solomon Islands on October 28, three days before the official start of the season. The final disturbance of the season dissipated as the season was drawing to a close on May 1. The season was above-average in terms of activity, with 9 tropical cyclones and 5 severe tropical cyclones forming during the season. The season featured Cyclone Percy, the most intense of the season in terms of pressure.
The 2008–09 South Pacific cyclone season was a below average tropical cyclone season, which featured six named tropical cyclones compared to an average of about nine. Ahead of the season officially starting on November 1, 2008, the Island Climate Update tropical cyclone outlook predicted that the season, would feature an average risk of tropical cyclones impacting the South Pacific between 160°E and 120°W. The first tropical disturbance of the season developed to the northeast of the Samoan Islands on December 1, however, it remained weak and was last noted during the next day.
Severe Tropical Cyclone Gene was the deadliest storm as well as the most damaging tropical cyclone of the 2007–08 South Pacific cyclone season east of 160ºE. RSMC Nadi monitored Gene as the 12th tropical disturbance, as well as the fourth tropical cyclone and the third severe tropical cyclone to form west of 160ºE during the 2007–08 South Pacific cyclone season. Gene was also recognised by RSMC Nadi as the fifth tropical cyclone and fourth severe tropical cyclone to form within the South Pacific Ocean during the 2007-08 season.
The 1992–93 South Pacific cyclone season was an above-average tropical cyclone season with ten tropical cyclones occurring within the South Pacific to the east of 160°E. The season officially ran from November 1, 1992, to April 30, 1993, with the first disturbance of the season forming on December 3 and the last disturbance dissipating on April 6.
The 1988–89 South Pacific cyclone season was an active tropical cyclone season with an above average number of tropical cyclones observed.
The 1970–71 South Pacific cyclone season, in terms of severe tropical cyclones, was the least active season on record, with none of its six storms strengthening above Category 2 tropical cyclone intensity. It was a below average season, beginning late and ending early. The season officially began on November 15 and ended on April 30, but the first storm formed a month after that, on December 15.
The 1979–80 South Pacific cyclone season saw mostly weak systems.
The 1982–83 South Pacific cyclone season was one of the most active and longest South Pacific tropical cyclone seasons on record, with 16 tropical cyclones occurring within the South Pacific basin between 160°E and 120°W. During the season tropical cyclones were monitored by the meteorological services of Australia, Fiji, French Polynesia and New Zealand. The United States Armed Forces through the Joint Typhoon Warning Center (JTWC) and Naval Pacific Meteorology and Oceanography Center (NPMOC), also monitored the basin and issued unofficial warnings for American interests. The first tropical cyclone of the season developed a day before the season officially began on October 30, while the last tropical cyclone of the season dissipated on May 16. Most of the activity during the season occurred within the central and eastern parts of the basin with French Polynesia affected by several systems.
Severe Tropical Cyclone Susan was one of the most intense tropical cyclones on record within the South Pacific basin. It was first noted on December 20, 1997, as a weak tropical disturbance located to the north of American Samoa. Over the next 12 days, the disturbance remained weak while it gradually moved towards the southwest before it started to rapidly develop on January 2, 1998 while it was located near the Fijian dependency of Rotuma. The disturbance was declared a tropical cyclone later that day, but was not named Susan until the next day, after it had intensified into a category 2 tropical cyclone on the Australian Scale. Over the next few days, Susan moved towards the southwest and continued to intensify before it reached its peak intensity as a category five tropical cyclone during January 5 while it was located about 400 km (250 mi) to the northwest of Vanuatu's capital city Port Vila.
Severe Tropical Cyclone Joni was a damaging tropical cyclone that impacted the island nations of Tuvalu and Fiji. It was first noted within the South Pacific Convergence Zone at the start of December 1992, as a shallow tropical depression in the vicinity of the island nation Tuvalu. Over the next few days the system gradually developed further as it affected Tuvalu, before it was declared to be a tropical cyclone and named Joni by the Fiji Meteorological Service (FMS) during December 7. Over the next couple of days the system intensified further as it was steered south-westwards and posed a threat towards the Fijian dependency of Rotuma and the French territory of Wallis and Futuna. The system subsequently peaked as a Category 4 severe tropical cyclone on the Australian tropical cyclone intensity scale as it approached the Fijian Islands during December 10. Over the next couple of days the system moved through the Fijian Islands, before it became an extratropical cyclone during December 13. The system was last noted during the next day as it was absorbed by a mid-latitude trough of low pressure to the east of New Zealand.
Severe Tropical Cyclone Kina was at the time the costliest storm to impact Fiji on record. Total losses from Kina are estimated to be near $F170 million ($US110 million). The system was first noted as a tropical depression, to the east of the Solomon Islands on 23 December. Over the next few days the system moved south-eastwards and gradually developed further, before it was named Kina, after it had developed into a tropical cyclone on 26 December.
Severe Tropical Cyclone Sina was the only named tropical cyclone to develop within the South Pacific basin during the 1990–91 season. The system was first noted as a shallow depression within the South Pacific Convergence Zone to the west of Wallis Island. Over the next three days the system moved towards the west-northwest, before it was named Sina during November 24, after it had developed into a tropical cyclone. Over the next couple of days the system intensified further and developed an eye feature as it erratically moved towards Fiji. Sina subsequently peaked in intensity during November 26, before the system passed through the Fijian Islands over the next two days as it started to gradually weaken. Sina subsequently passed just to the north of Tongatapu in Tonga during November 29, before it passed about 160 km (100 mi) to the south of Niue and near the Southern Cook Islands during the next day. The system subsequently rapidly weakened and became an extratropical cyclone during December 1, before they were absorbed by an advancing trough of low pressure near 50°S on December 4.
The 1984–85 South Pacific cyclone season was an above-average 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).
The 2016–17 South Pacific cyclone season was the least active South Pacific cyclone season since the 2011–12 season, with only four tropical cyclones occurring within the South Pacific Ocean to the east of 160°E. Two of the four systems developed into severe tropical cyclones on the Australian tropical cyclone intensity scale. The season officially ran from November 1, 2016 until April 30, 2017. However, May featured two post-season systems: Donna and Ella, of which the former was the strongest post-season South Pacific tropical cyclone ever recorded in that month. Overall, 22 tropical disturbances were monitored by a combination of the Fiji Meteorological Service (FMS), Australian Bureau of Meteorology (BoM) and New Zealand's MetService.
The 2018–19 South Pacific cyclone season was a below-average season that produced 5 tropical cyclones, 2 of which became severe tropical cyclones. The season officially runs from November 1, 2018, to April 30, 2019; however, a tropical cyclone could have formed at any time between July 1, 2018, and June 30, 2019, and would count towards the season total. During the season, tropical cyclones were officially monitored by the Fiji Meteorological Service, Australian Bureau of Meteorology, and New Zealand's MetService. The United States Armed Forces through the Joint Typhoon Warning Center (JTWC) also monitored the basin and issued warnings for American interests. RSMC Nadi attaches a number and an F suffix to tropical disturbances that form in or move into the basin, while the JTWC designates significant tropical cyclones with a number and a P suffix. The FMS, the BoM and MetService all use the Australian Tropical Cyclone Intensity Scale and estimate wind speeds over a period of ten minutes, while the JTWC estimates sustained winds over a 1-minute period, which are subsequently compared to the Saffir–Simpson hurricane wind scale (SSHWS).
Severe Tropical Cyclone Gavin was the most intense tropical cyclone to affect Fiji, since Cyclone Oscar of the 1982–83 cyclone season and was the first of three tropical cyclones to affect the island nations of Tuvalu and Wallis and Futuna during the 1996–97 season. The system that was to become Gavin was first identified during March 2, as a weak tropical depression that had developed within the monsoon trough of low pressure. Over the next two days the depression gradually developed further, before it was named Gavin by RSMC Nadi early on March 4 as it had developed into a tropical cyclone.
Severe Tropical Cyclone Eric was one of two tropical cyclones to affect the island nations of Vanuatu and Fiji within a week during January 1985. The precursor shallow depression developed within the monsoon trough during 13 January, to the west of Espiritu Santo, Vanuatu. On 16 January, the storm developed-hurricane-force winds and Eric began to undergo rapid deepening. While two different agencies differ on when and how strong Eric was at its peak, it was believed to have peaked on 17 January while passing through the Fiji island group. Shortly after its peak, Eric began to weaken steadily, and by 20 January, Severe Tropical Cyclone Eric had ceased to exist as a tropical cyclone. Combined with another storm – Cyclone Nigel – Eric caused 25 fatalities and $40 million worth of damage. A total of 299 farms were affected as well as the airport in Nadi. About 30,000 people were left homeless. Severe crop damage was also reported. Viti Levu sustained the worst effects from Cyclone Eric. During the aftermath of the storm, a number of first world countries distributed aid for victims of Eric.
Severe Tropical Cyclone Yasa was the second Category 5 severe tropical cyclone in 2020 after Harold in the 2019–20 South Pacific cyclone season. Yasa was the second tropical disturbance, as well as the first tropical cyclone and severe tropical cyclone of the 2020–21 South Pacific cyclone season. Yasa was first noted as an area of low pressure to the north of Port Vila in Vanuatu during December 10. Over the next few days, the system gradually developed further as it absorbed Tropical Depression 01F, before it was classified as a tropical cyclone and named Yasa by the Fiji Meteorological Service on December 13.
Severe Tropical Cyclone Ana was one of three tropical cyclones to impact the island nation of Fiji towards the end of January 2021. The fifth tropical disturbance, third tropical cyclone and second severe tropical cyclone of the 2020–21 South Pacific cyclone season, Ana was first noted as Tropical Disturbance 05F during January 26, while it was located about 220 km (135 mi) to the northeast of Port Vila in Vanuatu. Over the next few days, the system moved eastwards and gradually developed further, before it was declared to be a tropical cyclone and named Ana during January 29. Over the next day, the system moved south-eastwards towards Fiji before it made landfall on the island of Viti Levu. After emerging into the Pacific Ocean, the system intensified into a Category 3 severe tropical cyclone, before it rapidly degenerated into a subtropical low during February 1.