Category 4 is the second-highest classification on the

Australian tropical cyclone intensity scale Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few scales of classifications are used officially by the mete ...

which is used to classify tropical cyclones, that have 10-minute sustained winds of at least wind speeds of . 47 tropical cyclones have peaked Category 4 severe tropical cyclones in the Australian tropical cyclone basin, which is denoted as a part of the Indian and Pacific Oceans to the south of the equator and between 90°E - 160°E. The earliest tropical cyclone to be classified as a Category 4 severe tropical cyclone was Gyan which was classified as a Category 4 during December 22, 1981, as it impacted New Caledonia. The latest was Pola as it passed between Fiji and Tonga. This list does include any tropical cyclones that peaked as a Category 5 severe tropical cyclone, while in the Australian region.

Background

The Australian region tropical cyclone basin is located to the south of the

Equator The equator is a circle of latitude, about in circumference, that divides Earth into the Northern and Southern hemispheres. It is an imaginary line located at 0 degrees latitude, halfway between the North and South poles. The term can als ...

between

90°E The meridian 90° east of Prime Meridian, Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole. It is the border between two trop ...

and 160°E. The basin is officially monitored by the

Australian Bureau of Meteorology Australian(s) may refer to: Australia * Australia, a country * Australians, citizens of the Commonwealth of Australia ** European Australians ** Anglo-Celtic Australians, Australians descended principally from British colonists ** Aboriginal Aus ...

as well as the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), and the Papua New Guinea National Weather Service. The United States

Joint Typhoon Warning Center The Joint typhoon Warning Center (JTWC) is a joint United States Navy – United States Air Force command in Pearl Harbor, Hawaii. The JTWC is responsible for the issuing of tropical cyclone warnings in the North-West Pacific Ocean, South P ...

(JTWC) and other national meteorological services such as New Zealand's MetService,

Météo-France Météo-France is the French national meteorological service. Organisation The organisation was established by decree in June 1993 and is a department of the Ministry of Transportation. It is headquartered in Paris but many domestic operatio ...

and the

Fiji Meteorological Service The Fiji Meteorological Service (FMS) is a Department of the government of Fiji responsible for providing weather forecasts and is based on the grounds of Nadi Airport in Nadi. The current director of Fiji Meteorological Service is Misaeli Funaki. ...

, also monitor parts of the basin in an unofficial capacity. Within the basin a Category 4 severe tropical cyclone is a

tropical cyclone A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...

that has 10-minute mean maximum sustained wind speeds of on the

. A named storm could also be classified as a Category 4 tropical cyclone if it is estimated, to have 1-minute mean maximum sustained wind speeds of between on the Saffir-Simpson hurricane wind scale. This scale is not officially used by any of the warning centres for the region, however, tropical cyclones are compared to it by various agencies including NASA. On both scales Category 5 tropical cyclones are expected to cause widespread devastation, if it significantly impacts land at or near its peak intensity.

Systems

1970s

, - ,

Kerry Kerry or Kerri may refer to: * Kerry (name), a given name and surname of Gaelic origin (including a list of people with the name) Places * Kerry, Queensland, Australia * County Kerry, Ireland ** Kerry Airport, an international airport in County ...

, , , , , , , , Wesrern Australia , , , , , , , - , Madge , , , , , , , , Northern Territory, Queensland , , , , , , , - , Pam , , , , , , , , Wallis and Futuna, Vanuatu
New Caledonia, Queensland , , Significant , , Unknown , , , - , Tracy , , , , , , , , Northern Territory , , , , , , , - , Vanessa (1976) , , January 1976 , , , , , , Western Australia , , , , , , , - , Watorea , , , , , , , , , , , , , , , - ,

Ted TED may refer to: Economics and finance * TED spread between U.S. Treasuries and Eurodollar Education * ''Türk Eğitim Derneği'', the Turkish Education Association ** TED Ankara College Foundation Schools, Turkey ** Transvaal Education Depa ...

, , , , , , , , Queensland , , , , , , , - , Leo (1977) , , , , , , , , , , , , , , , - , Trudy (1978) , , , , , , , , , , , , , , , - , Winnie (1978) , , , , , , , , , , , , , , , - , Kerry (1979) , , , , , , , , , , , , , , , - , Hazel (1979) , , , , , , , , , , , , , , , - , Idylle (1979) , , , , , , , , , , , , , ,

1980s

, - , Brian (1980) , , , , , , , , , , , , , , , - , Fred (1980) , , , , , , , , , , , , , , , - , Simon , , , , , , , , Queensland, New Zealand , , , , , , , - , Doris-Gloria (1980) , , , , , , , , , , , , , , , - , Alice-Adelaide (1980) , , , , , , , , , , , , , , , - , Felix (1980) , , , , , , , , , , , , , , , - , Neil (1981) , , , , , , , , , , , , , , , - , Olga (1981) , , , , , , , , , , , , , , , - , Chris-Damia (1982) , , , , , , , , , , , , , , , - , Bernie (1982) , , , , , , , , , , , , , , , - , Jane , , , , , , , , Western Australia , , , , , , , - , Elinor , , , , , , , , Queensland , , , , , , , - , Quenton (1983) , , , , , , , , , , , , , , , - , Bobby (1984) , , , , , , , , , , , , , , , - , Chloe (1984) , , , , , , , , , , , , , , , - , Daryl (1984) , , , , , , , , , , , , , , , - , Odette , , , , , , , , Cape York Peninsula, Vanuatu , , , , , , , - , Sandy , , , , , , , , Northern Territory, Western Australia , , N/A , , , , , - , Victor (1986) , , , , , , , , , , , , , , , - , Billy – Lila , , , , , , , , Western Australia , , None , , None , , , - , Elsie , , , , , , , , Western Australia , , N/A , , , , , - , Gwenda-Ezenina (1988) , , , , , , , , , , , , , , , - , Ned , , , , , , , , Western Australia , , , , , ,

1990s

, - , Ivor , , , , , , , , Cape York Peninsula , , , , , , , - , Joy , , , , , , , , Solomon Islands, Queensland , , , , , , , - , Errol (1991) , , , , , , , , , , , , , , , - , Marian (1991) , , , , , , , , , , , , , , , - , Betsy , , , , , , , , Solomon Islands, Vanuatu, New Caledonia, New Zealand , , , , , , , - , Harriet-Heather (1992) , , , , , , , , , , , , , , , - , Ian , , , , , , , , Western Australia , , , , , , , - ,

Esau Esau ''Ēsaû''; la, Hesau, Esau; ar, عِيسَوْ ''‘Īsaw''; meaning "hairy"Easton, M. ''Illustrated Bible Dictionary'', (, , 2006, p. 236 or "rough".Mandel, D. ''The Ultimate Who's Who in the Bible'', (.), 2007, p. 175 is the elder son o ...

, , , , , , , , Vanuatu , , Minimal , , , , , - , Jane-Irna (1992) , , , , , , , , , , , , , , , - ,

Nina Nina may refer to: * Nina (name), a feminine given name and surname Acronyms *National Iraqi News Agency, a news service in Iraq * Norwegian Institute for Nature Research, on the campus of Norwegian University of Science and Technology *No income, ...

, , , , , , , , Queensland, Tonga, Papua New Guinea, Solomon Islands, Wallis and Futuna , , , , , , , - , Oliver , , , , , , , , Queensland , , , , , , , - , Sharon , , , , , , , , Indonesia, Western Australia , , , , , , , - , Annette , , , , , , , , Western Australia, South Australia , , , , , , , - , Bobby , , , , , , , , Northern Territory, Western Australia , , , , , , , - , Agnes , , , , , , , , , , , , , , , - , Frank , , , , , , , , Western Australia , , , , , , , - , Barry , , , , , , , , Queensland , , , , , , , - , Kirsty , , , , , , , , Western Australia , , , , , , , - ,

Olivia Olivia may refer to: People * Olivia (name), including a list of people and fictional characters with the name * Olivia (singer) (Olivia Longott, born 1981), American singer * Olívia (basketball) (Carlos Henrique Rodrigues do Nascimento, born 1974 ...

, , , , , , , , Western Australia, South Australia , , , , , , , - , Drena (1997) , , , , , , , , , , , , , , , - , Rhonda , , , , , , , , Cocos Islands, Western Australia , , , , , , , - ,

Katrina Katrina or Katrine may refer to: People * Katrina (given name) * Katrine (given name) Meteorology * List of storms named Katrina, a list of tropical cyclones designated as Katrina ** Hurricane Katrina, an exceptionally powerful Atlantic hurrican ...

, , , , , , , , Solomon Islands, Vanuatu, Queensland , , , , , , , - , Tiffany (1998) , , , , , , , , , , , , , , , - , Elaine , , , , , , , , Western Australia , , , , , , , - , Frederic-Evrina (1999) , , , , , , , , , , , , , ,

2000s

, - , Norman (2000) , , , , , , , , , , , , , , , - , Fiona (2003) , , , , , , , , , , , , , , , - ,

Monty Monty is a masculine given name, often a short form of Montgomery, Montague and other similar names. It is also a surname. Notable people with the name or nickname include: First name Nickname * Bernard Montgomery (1887–1976), British Secon ...

, , , , , , , , Western Australia , , , , , - , Oscar-Itseng (2004) , , , , , , , , , , , , , , , - , Bertie-Alvin (2005) , , , , , , , , , , , , , , , - ,

Larry Larry is a masculine given name in English, derived from Lawrence (given name), Lawrence or Laurence. It can be a shortened form of those names. Larry may refer to the following: People Arts and entertainment *Larry D. Alexander, American arti ...

, , , , , , , , Queensland , , , , , , , - , Floyd (2006) , , , , , , , , , , , , , , , - , Pancho (2008) , , , , , , , , , , , , , , , - , Billy (2008) , , , , , , , , , , , , , , , - , Ilsa (2009) , , , , , , , , , , , , , ,

2010's

, - , Ului , , , , , , , , Vanuatu, Solomon Islands, Queensland , , , , , , , - , Zelia , , , , , , , , None , , , , , , , - ,

Bianca Bianca is a feminine given name. It means "white" and is an Italian cognate of Blanche. Variants * Blanche: French * Bianca: Italian * Bianka (Polish, Hungarian, Slovak, German, English, French, Icelandic, Finnish, Dutch, Norwegian, Co ...

, , , , , , , , Western Australia , , , , , , , - , Narelle , , , , , , , , Western Australia , , , , , , , - ,

Rusty Rusty may refer to something covered with rust or with a rust (color). Rusty is also a nickname for people who have red hair, have a rust-hued skin tone, or have the given name Russell. Rusty may also refer to: People *Rusty Anderson (born 1959 ...

, , , , , , , , Western Australia , , , , , , , - ,

Christine Christine may refer to: People * Christine (name), a female given name Film * ''Christine'' (1958 film), based on Schnitzler's play ''Liebelei'' * ''Christine'' (1983 film), based on King's novel of the same name * ''Christine'' (1987 fil ...

, , , , , , , , Western Australia , , , , , , , - , Lam , , , , , , , , Northern Australia , , , , , , , - ,

Nathan Nathan or Natan may refer to: People *Nathan (given name), including a list of people and characters with this name *Nathan (surname) *Nathan (prophet), a person in the Hebrew Bible * Nathan (son of David), biblical figure, son of King David an ...

, , , , , , , , Northern Australia , , , , , , , - ,

Ikola Ikola may refer to: Geography * Ikola, Finland, a former village in the former municipality Kivennapa, Finland * Ikola, Tanzania, a ward in Mpanda District, Tanzania People with the surname * Heikki Ikola (born 1947), Finnish biathlete * W ...

, , , , , , , , None , , , , , , , - , Quang , , , , , , , , Western Australia , , , , , , , - ,

Debbie Debbie (or Debby or Deb) is a feminine given name, commonly but not always short for Deborah (or Debra and related variants). Notable people * Debbie Allen, American actress, choreographer and film director * Debbie Armstrong, American athlete * ...

, , , , , , , , Queensland, New South Wales , , , , , , , - ,

Savannah A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the Canopy (forest), canopy does not close. The open canopy allows sufficient light to rea ...

, , , , , , , , Cocos Islands , , , , , , , - ,

Trevor Trevor (Trefor (disambiguation), Trefor in the Welsh language) is a common given name or surname of Welsh language, Welsh origin. It is an habitational name, deriving from the Welsh ''tre(f)'', meaning "homestead", or "settlement" and ''fawr'', ...

, , , , , , , , Papua New Guinea, Queensland, Northern Territory , , , , , ,

2020's

, - , Ferdinand , , , , , , , , None , , , , , , , - , Vernon , , , , , , , , None , , , , , , , - ,

Charlotte Charlotte ( ) is the List of municipalities in North Carolina, most populous city in the U.S. state of North Carolina. Located in the Piedmont (United States), Piedmont region, it is the county seat of Mecklenburg County, North Carolina, Meckl ...

, , , , , , , , Timor-Leste, Western Australia , , , , , , , - , Freddy , , , , , , , , None , , , , , ,

Other systems

*Chris-Damia - Cat 4 in SWIO. *Walter-Gregoara - Cat 4 in SWIO. *Harriet-Heather - Cat 4 in SWIO. * Uriah - Cat 4 in SWIO. Over the years, the intensity estimates of tropical cyclones have been reanalysed for various reasons and were found to have been underestimated by the various warning centres. In particular, during a database repair project that took place between 2005 and 2007, the BoM discovered that Severe Tropical Cyclone Pam of 1974, had been reanalysed at some point after 1979. This reanalysis showed that Pam had moved out of the South Pacific region and into the Australian region, as a category 5 severe tropical cyclone. However, a later reanalysis by the BoM during 2021 downgraded it to a category 4 severe tropical cyclone, as it was thought that the width of the southern eyewall was too narrow for a category 5 severe tropical cyclone.

Background

Systems

1970s

1980s

1990s

2000s

2010's

2020's

Other systems

Impacts

Records and statistics

See also

References

External links