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Tropical cyclones and subtropical cyclones are named by various warning centers to simplify communication between forecasters and the general public regarding forecasts, watches and warnings. The names are intended to reduce confusion in the event of concurrent storms in the same basin. Once storms develop sustained wind speeds of more than 33 knots (61 km/h; 38 mph), names are generally assigned to them from predetermined lists, depending on the basin in which they originate. Some tropical depressions are named in the Western Pacific, while tropical cyclones must contain a significant amount of gale-force winds before they are named in the Southern Hemisphere.
Before it became standard practice to give personal (first) names to tropical cyclones, they were named after places, objects, or the saints' feast days on which they occurred. Credit for the first usage of personal names for weather systems is generally given to Queensland Government meteorologist Clement Wragge, who named systems between 1887 and 1907. When Wragge retired, the practice fell into disuse for several years until it was revived in the latter part of World War II for the Western Pacific. Formal naming schemes and lists have subsequently been used for major storms in the Eastern, Central, Western and Southern Pacific basins, and the Australian region, Atlantic Ocean and Indian Ocean.
Tropical cyclone naming institutions | |||
---|---|---|---|
Basin | Institution | Area of responsibility | |
Northern Hemisphere | |||
North Atlantic Eastern Pacific | United States National Hurricane Center | Equator northward, European and African Atlantic Coasts – 140°W | [1] |
Central Pacific | United States Central Pacific Hurricane Center | Equator northward, 140°W – 180° | [1] |
Western Pacific | Japan Meteorological Agency PAGASA (unofficial) | Equator – 60°N, 180 – 100°E 5°N – 21°N, 115°E – 135°E | [2] [3] |
North Indian Ocean | India Meteorological Department | Equator northward, 100°E – 40°E | [4] |
Southern Hemisphere | |||
South-West Indian Ocean | Mauritius Meteorological Services Météo Madagascar Météo-France Reunion | Equator – 40°S, 55°E – 90°E Equator – 40°S, African Coast – 55°E Equator – 40°S, African Coast – 90°E | [5] |
Australian region | Indonesian Agency for Meteorology, Climatology and Geophysics Papua New Guinea National Weather Service Australian Bureau of Meteorology | Equator – 10°S, 90°E – 141°E Equator – 10°S, 141°E – 160°E 10°S – 40°S, 90°E – 160°E | [6] |
Southern Pacific | Fiji Meteorological Service Meteorological Service of New Zealand | Equator – 25°S, 160°E – 120°W 25°S – 40°S, 160°E – 120°W | [6] |
South Atlantic | Brazilian Navy Hydrographic Center (unofficial) | Equator – 35°S, Brazilian Coast – 20°W | [7] |
Before the formal start of naming, tropical cyclones were often named after places, objects, or saints' feast days on which they occurred. The credit for the first usage of personal names for weather systems is generally given to the Queensland Government meteorologist Clement Wragge, who named systems between 1887 and 1907. This system of naming weather systems subsequently fell into disuse for several years after Wragge retired until it was revived in the latter part of World War II for the Western Pacific. Formal naming schemes have subsequently been introduced for the North Atlantic, Eastern, Central, Western and Southern Pacific basins as well as the Australian region and Indian Ocean. [8]
As of 2014 [update] , tropical cyclones are officially named by one of eleven warning centers and retain their names throughout their lifetimes to facilitate the effective communication of forecasts and storm-related hazards to the general public. [9] This is especially important when multiple storms are occurring simultaneously in the same ocean basin. [9] Names are generally assigned in order from predetermined lists, once they produce one, three, or ten-minute sustained wind speeds of more than 65 km/h (40 mph). [1] [4] [5] However, standards vary from basin to basin, with some systems named in the Western Pacific when they develop into tropical depressions or enter PAGASA's area of responsibility. [3] Within the Southern Hemisphere, systems must be characterized by a significant amount of gale-force winds occurring around the center before they are named. [5] [6]
Any member of the World Meteorological Organization's hurricane, typhoon and tropical cyclone committees can request that the name of a tropical cyclone be retired or withdrawn from the various tropical cyclone naming lists. [1] [2] [6] A name is retired or withdrawn if a consensus or majority of members agree that the system has acquired a special notoriety, such as causing a large number of deaths and amounts of damage, impact, or for other special reasons. [1] A replacement name is then submitted to the committee concerned and voted upon, but these names can be rejected and replaced with another name for various reasons: these reasons include the spelling and pronunciation of the name, the similarity to the name of a recent tropical cyclone or on another list of names, and the length of the name for modern communication channels such as social media. [1] [2] [10] PAGASA also retires the names of significant tropical cyclones when they have caused at least ₱ 1 billion (US$20.3 million) in damage or have caused at least 300 deaths. [11]
Within the North Atlantic Basin, tropical or subtropical storms are named by the United States National Hurricane Center (NHC/RSMC Miami), when they are judged to have 1-minute sustained winds of at least 34 kn (39 mph; 63 km/h). [1] The name selected comes from one of six rotating alphabetic lists of twenty-one names, that are maintained by the World Meteorological Organization's (WMO) RA IV Hurricane Committee. [1] These lists skip the letters Q, U, X, Y and Z, rotate from year to year and alternate between male and female names. [1] Should all of the names for a given year be used up, then any additional storms would be named using names from a supplemental list. [1] The names of significant tropical cyclones are retired from the lists, with a replacement name selected at the next meeting of the Hurricane Committee. [1]
2024 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Names | Alberto | Beryl | Chris | Debby | Ernesto | Francine | Gordon | Helene | Isaac | Joyce | Kirk |
Leslie | Milton | Nadine | Oscar | Patty | Rafael | Sara | Tony | Valerie | William | ||
2025 | |||||||||||
Names | Andrea | Barry | Chantal | Dexter | Erin | Fernand | Gabrielle | Humberto | Imelda | Jerry | Karen |
Lorenzo | Melissa | Nestor | Olga | Pablo | Rebekah | Sebastien | Tanya | Van | Wendy | ||
2026 | |||||||||||
Names | Arthur | Bertha | Cristobal | Dolly | Edouard | Fay | Gonzalo | Hanna | Isaias | Josephine | Kyle |
Leah | Marco | Nana | Omar | Paulette | Rene | Sally | Teddy | Vicky | Wilfred | ||
2027 | |||||||||||
Names | Ana | Bill | Claudette | Danny | Elsa | Fred | Grace | Henri | Imani | Julian | Kate |
Larry | Mindy | Nicholas | Odette | Peter | Rose | Sam | Teresa | Victor | Wanda | ||
2028 | |||||||||||
Names | Alex | Bonnie | Colin | Danielle | Earl | Farrah | Gaston | Hermine | Idris | Julia | Karl |
Lisa | Martin | Nicole | Owen | Paula | Richard | Shary | Tobias | Virginie | Walter | ||
2029 | |||||||||||
Names | Arlene | Bret | Cindy | Don | Emily | Franklin | Gert | Harold | Idalia | Jose | Katia |
Lee | Margot | Nigel | Ophelia | Philippe | Rina | Sean | Tammy | Vince | Whitney | ||
Supplemental list | |||||||||||
Names | Adria | Braylen | Caridad | Deshawn | Emery | Foster | Gemma | Heath | Isla | Jacobus | Kenzie |
Lucio | Makayla | Nolan | Orlanda | Pax | Ronin | Sophie | Tayshaun | Viviana | Will | ||
Within the Eastern Pacific Ocean, there are two warning centers that assign names to tropical cyclones on behalf of the World Meteorological Organization when they are judged to have intensified into a tropical storm with winds of at least 34 kn (39 mph; 63 km/h). [1] Tropical cyclones that intensify into tropical storms between the coast of Americas and 140°W are named by the National Hurricane Center (NHC/RSMC Miami), while tropical cyclones intensifying into tropical storms between 140°W and 180° are named by the Central Pacific Hurricane Center (CPHC/RSMC Honolulu). [1] Significant tropical cyclones have their names retired from the lists and a replacement name selected at the next World Meteorological Organization Hurricane Committee. [1]
When a tropical depression intensifies into a tropical storm to the north of the Equator between the coastline of the Americas and 140°W, it will be named by the NHC. There are six lists of names which rotate every six years and begin with the letters A—Z used, skipping Q and U, with each name alternating between a male or a female name. [1] The names of significant tropical cyclones are retired from the lists, with a replacement name selected at the next meeting of the Hurricane Committee. [1] If all of the names on the annual name list are used, any additional tropical or subtropical storms will receive a name from a supplemental list. [1]
2024 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Names | Aletta | Bud | Carlotta | Daniel | Emilia | Fabio | Gilma | Hector | Ileana | John | Kristy | Lane |
Miriam | Norman | Olivia | Paul | Rosa | Sergio | Tara | Vicente | Willa | Xavier | Yolanda | Zeke | |
2025 | ||||||||||||
Names | Alvin | Barbara | Cosme | Dalila | Erick | Flossie | Gil | Henriette | Ivo | Juliette | Kiko | Lorena |
Mario | Narda | Octave | Priscilla | Raymond | Sonia | Tico | Velma | Wallis | Xina | York | Zelda | |
2026 | ||||||||||||
Names | Amanda | Boris | Cristina | Douglas | Elida | Fausto | Genevieve | Hernan | Iselle | Julio | Karina | Lowell |
Marie | Norbert | Odalys | Polo | Rachel | Simon | Trudy | Vance | Winnie | Xavier | Yolanda | Zeke | |
2027 | ||||||||||||
Names | Andres | Blanca | Carlos | Dolores | Enrique | Felicia | Guillermo | Hilda | Ignacio | Jimena | Kevin | Linda |
Marty | Nora | Olaf | Pamela | Rick | Sandra | Terry | Vivian | Waldo | Xina | York | Zelda | |
2028 | ||||||||||||
Names | Agatha | Blas | Celia | Darby | Estelle | Frank | Georgette | Howard | Ivette | Javier | Kay | Lester |
Madeline | Newton | Orlene | Paine | Roslyn | Seymour | Tina | Virgil | Winifred | Xavier | Yolanda | Zeke | |
2029 | ||||||||||||
Names | Adrian | Beatriz | Calvin | Debora | Eugene | Fernanda | Greg | Hilary | Irwin | Jova | Kenneth | Lidia |
Max | Norma | Otilio | Pilar | Ramon | Selma | Todd | Veronica | Wiley | Xina | York | Zelda | |
Supplemental list | ||||||||||||
Names | Aidan | Bruna | Carmelo | Daniella | Esteban | Flor | Gerardo | Hedda | Izzy | Jacinta | Kenito | Luna |
Marina | Nancy | Ovidio | Pia | Rey | Skylar | Teo | Violeta | Wilfredo | Xinia | Yariel | Zoe | |
When a tropical depression intensifies into a tropical storm to the north of the Equator between 140°W and 180°, it is named by the CPHC. [1] Four lists of Hawaiian names are maintained by the World Meteorological Organization's hurricane committee, rotating without regard to year, with the first name for a new year being the next name in sequence that was not used the previous year. [1] The names of significant tropical cyclones are retired from the lists, with a replacement name selected at the next Hurricane Committee meeting. [1]
List | Names | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Akoni | Ema | Hone | Iona | Keli | Lala | Moke | Nolo | Olana | Pena | Ulana | Wale | |
2 | Aka | Ekeka | Hene | Iolana | Keoni | Lino | Mele | Nona | Oliwa | Pama | Upana | Wene | |
3 | Alika | Ele | Huko | Iopa | Kika | Lana | Maka | Neki | Omeka | Pewa | Unala | Wali | |
4 | Ana | Ela | Halola | Iune | Kilo | Loke | Malia | Niala | Oho | Pali | Ulika | Walaka | |
References: [1] |
Tropical cyclones that occur within the Northern Hemisphere between the anti-meridian and 100°E are officially named by the Japan Meteorological Agency when they become tropical storms. [2] However, PAGASA also names tropical cyclones that occur or develop into tropical depressions within their self-defined area of responsibility between 5°N–25°N and 115°E–135°E. [3] This often results in tropical cyclones in the region having two names. [3]
Tropical cyclones within the Western Pacific are assigned international names by the Japan Meteorological Agency when they become tropical storms with 10-minute sustained winds of at least 34 kn (39 mph; 63 km/h). [2] The names are used sequentially without regard to year and are taken from five lists of names that were prepared by the ESCAP/WMO Typhoon Committee, after each of the 14 members submitted 10 names in 1998. [2] The order of the names to be used was determined by placing the English name of the members in alphabetical order. [2] Members of the committee are allowed to request the retirement or replacement of a system's name if it causes extensive destruction or for other reasons such as number of deaths. [2]
Since 1963, PAGASA has independently operated its own naming scheme for tropical cyclones that occur within its own self-defined Philippine Area of Responsibility. [3] [14] The names are taken from four different lists of 25 names and are assigned when a system moves into or develops into a tropical depression within PAGASA's jurisdiction. [3] [14] The four lists of names are rotated every four years, with the names of significant tropical cyclones retired if they have caused at least ₱ 1 billion in damage and/or at least 300 deaths within the Philippines; [14] [15] replacements to retired names are taken from the agency's list of reserved names. [14] If the list of names for a given year are exhausted, names are taken from an auxiliary list, the first ten of which are published every year. [14]
2024 | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Main | Aghon | Butchoy | Carina | Dindo | Enteng | Ferdie | Gener | Helen | Igme | Julian | Kristine | Leon | Marce | ||||||
Nika | Ofel | Pepito | Querubin | Romina | Siony | Tonyo | Upang | Vicky | Warren | Yoyong | Zosimo | ||||||||
Auxiliary | Alakdan | Baldo | Clara | Dencio | Estong | Felipe | Gomer | Heling | Ismael | Julio | |||||||||
2025 | |||||||||||||||||||
Main | Auring | Bising | Crising | Dante | Emong | Fabian | Gorio | Huaning | Isang | Jacinto | Kiko | Lannie | Mirasol | ||||||
Nando | Opong | Paolo | Quedan | Ramil | Salome | Tino | Uwan | Verbena | Wilma | Yasmin | Zoraida | ||||||||
Auxiliary | Alamid | Bruno | Conching | Dolor | Ernie | Florante | Gerardo | Hernan | Isko | Jerome | |||||||||
2026 | |||||||||||||||||||
Main | Ada | Basyang | Caloy | Domeng | Ester | Francisco | Gardo | Henry | Inday | Josie | Kiyapo | Luis | Maymay | ||||||
Neneng | Obet | Pilandok | Queenie | Rosal | Samuel | Tomas | Umberto | Venus | Waldo | Yayang | Zeny | ||||||||
Auxiliary | Agila | Bagwis | Chito | Diego | Elena | Felino | Gunding | Harriet | Indang | Jessa | |||||||||
2027 | |||||||||||||||||||
Main | Amang | Betty | Chedeng | Dodong | Emil | Falcon | Gavino | Hanna | Ineng | Jenny | Kabayan | Liwayway | Marilyn | ||||||
Nimfa | Onyok | Perla | Quiel | Ramon | Sarah | Tamaraw | Ugong | Viring | Weng | Yoyoy | Zigzag | ||||||||
Auxiliary | Abe | Berto | Charo | Dado | Estoy | Felion | Gening | Herman | Irma | Jaime | |||||||||
References: [14] |
Within the North Indian Ocean between 45°E – 100°E, tropical cyclones are named by the India Meteorological Department (IMD/RSMC New Delhi) when they are judged to have intensified into cyclonic storms with 3-minute sustained wind speeds of at least 34 kn (39 mph; 63 km/h). [4] If a cyclonic storm moves into the basin from the Western Pacific, then it will keep its original name. [4] However, if the system weakens into a deep depression and subsequently reintensifies after moving into the region, then it will be assigned a new name. [4] In May 2020, the naming of Cyclone Amphan exhausted the original list of names established in 2004. [4] A new list of names has been prepared and is being used in alphabetical order for storms after Amphan. [4] [16]
List | Contributing nation | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bangladesh | India | Iran | Maldives | Myanmar | Oman | Pakistan | Qatar | Saudi Arabia | Sri Lanka | Thailand | U.A.E. | Yemen | |
1 | Nisarga | Gati | Nivar | Burevi | Tauktae | Yaas | Gulab | Shaheen | Jawad | Asani | Sitrang | Mandous | Mocha |
2 | Biparjoy | Tej | Hamoon | Midhili | Michaung | Remal | Asna | Dana | Fengal | Shakhti | Montha | Senyar | Ditwah |
3 | Arnab | Murasu | Akvan | Kaani | Ngamann | Sail | Sahab | Lulu | Ghazeer | Gigum | Thianyot | Afoor | Diksam |
4 | Upakul | Aag | Sepand | Odi | Kyarthit | Naseem | Afshan | Mouj | Asif | Gagana | Bulan | Nahhaam | Sira |
5 | Barshon | Vyom | Booran | Kenau | Sapakyee | Muzn | Manahil | Suhail | Sidrah | Verambha | Phutala | Quffal | Bakhur |
6 | Rajani | Jhar | Anahita | Endheri | Wetwun | Sadeem | Shujana | Sadaf | Hareed | Garjana | Aiyara | Daaman | Ghwyzi |
7 | Nishith | Probaho | Azar | Riyau | Mwaihout | Dima | Parwaz | Reem | Faid | Neeba | Saming | Deem | Hawf |
8 | Urmi | Neer | Pooyan | Guruva | Kywe | Manjour | Zannata | Rayhan | Kaseer | Ninnada | Kraison | Gargoor | Balhaf |
9 | Meghala | Prabhanjan | Arsham | Kurangi | Pinku | Rukam | Sarsar | Anbar | Nakheel | Viduli | Matcha | Khubb | Brom |
10 | Samiron | Ghurni | Hengame | Kuredhi | Yinkaung | Watad | Badban | Oud | Haboob | Ogha | Mahingsa | Degl | Shuqra |
11 | Pratikul | Ambud | Savas | Horangu | Linyone | Al-jarz | Sarrab | Bahar | Bareq | Salitha | Phraewa | Athmad | Fartak |
12 | Sarobor | Jaladhi | Tahamtan | Thundi | Kyeekan | Rabab | Gulnar | Seef | Alreem | Rivi | Asuri | Boom | Darsah |
13 | Mahanisha | Vega | Toofan | Faana | Bautphat | Raad | Waseq | Fanar | Wabil | Rudu | Thara | Saffar | Samhah |
Within the South-West Indian Ocean in the Southern Hemisphere between Africa and 90°E, a tropical or subtropical disturbance is named when it is judged to have intensified into a tropical storm with winds of at least 34 kn (39 mph; 63 km/h). [5] [17] This is defined as being when gales are either observed or estimated to be present near a significant portion of the system's center. [5] Systems are named in conjunction with Météo-France Reunion by either Météo Madagascar or the Mauritius Meteorological Service. [5] If a disturbance reaches the naming stage between Africa and 55°E, then Météo Madagascar names it; if it reaches the naming stage between 55°E and 90°E, then the Mauritius Meteorological Service names it. [5] The names are taken from three pre-determined lists of names, which rotate on a triennial basis, with any names that have been used automatically removed. [5] These names are then replaced by the WMO's RA I Tropical Cyclone Committee, with names submitted by member nations. [5]
2023–24 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Names | Alvaro | Belal | Candice | Djoungou | Eleanor | Filipo | Gamane | Hidaya | Ialy | Jeremy | Kanga | Ludzi | Melina |
Noah | Onias | Pelagie | Quamar | Rita | Solani | Tarik | Urilia | Vuyane | Wagner | Xusa | Yarona | Zacarias | |
2024–25 | |||||||||||||
Names | Ancha | Bheki | Chido | Dikeledi | Elvis | Faida | Garance | Honde | Ivone | Jude | Kanto | Lira | Maipelo |
Njazi | Oscar | Pamela | Quentin | Rajab | Savana | Themba | Uyapo | Viviane | Walter | Xangy | Yemurai | Zanele | |
2025–26 | |||||||||||||
Names | Awo | Blossom | Chenge | Dudzai | Ewetse | Fytia | Gezani | Horacio | Indusa | Juluka | Kundai | Lisebo | Michel |
Nousra | Olivier | Pokera | Quincy | Rebaone | Salama | Tristan | Ursula | Violet | Wilson | Xila | Yekela | Zaina | |
References: [5] [17] |
Within the Australian region in the Southern Hemisphere between 90°E – 160°E, a tropical cyclone is named when observations or Dvorak intensity analysis indicate that a system has gale force or stronger winds near the center which are forecast to continue. [6] The Indonesian Badan Meteorologi, Klimatologi, dan Geofisika names systems that develop between the Equator and 10°S and 90°E and 141°E, while Papua New Guinea's National Weather Service names systems that develop between the Equator and 10°S and 141°E and 160°E. [6] Outside of these areas, the Australian Bureau of Meteorology names systems that develop into tropical cyclones. [6] In order to enable local authorities and their communities in taking action to reduce the impact of a tropical cyclone, each of these warning centres reserve the right to name a system early if it has a high chance of being named. [6] If a name is assigned to a tropical cyclone that causes loss of life or significant damage and disruption to the way of life of a community, then the name assigned to that storm is retired from the list of names for the region. [6] A replacement name is then submitted to the next World Meteorological Organization's RA V Tropical Cyclone Committee meeting. [6]
If a system intensifies into a tropical cyclone between the Equator – 10°S and 90°E – 141°E, it will be named by the Badan Meteorologi, Klimatologi, dan Geofisika (BMKG/TCWC Jakarta). [6] Names are assigned in sequence from list A, while list B details names that will replace names on list A that are retired or removed for other reasons. [6]
List A | |||||||||
---|---|---|---|---|---|---|---|---|---|
Anggrek | Bakung | Cempaka | Dahlia | Flamboyan | Kenanga | Lili | Melati | Rambutan | Teratai |
List B | |||||||||
Anggur | Belimbing | Duku | Jambu | Lengkeng | Manggis | Nangka | Pepaya | Terong | Sawo |
References: [6] [18] |
If a system intensifies into a tropical cyclone between the Equator – 10°S and 141°E – 160°E, then it will be named by Papua New Guinea National Weather Service (NWS, TCWC Port Moresby). [6] Names are assigned in sequence from list A and are automatically retired after being used regardless of any damage caused. [6] List B contains names that will replace names on list A that are retired or removed for other reasons. [6]
List A | |||||||||
---|---|---|---|---|---|---|---|---|---|
Alu | Buri | Dodo | Emau | Fere | Hibu | Ila | Kama | Lobu | Maila |
List B | |||||||||
Nou | Obaha | Paia | Ranu | Sabi | Tau | Ume | Vali | Wau | Auram |
References: [6] |
When a system develops into a tropical cyclone below 10°S between 90°E and 160°E, then it will be named by the Australian Bureau of Meteorology (BOM/TCWC Melbourne). [6] The names are assigned in alphabetical order and used in rotating order without regard to year. [6]
List A | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Names | Anika | Billy | Charlotte | Darian | Ellie | TBA [nb 4] | Gemm | Herman | Isabella | Julian | Kima |
Lincoln | Merryn | Neville | Olga | Paul | Robyn | Sean | Taliah | Vince | Zelia | — | |
List B | |||||||||||
Names | Anthony | Bianca | Courtney | Dianne | Errol | Fina | Grant | Hayley | Iggy | Jenna | Koji |
Luana | Mitchell | Narelle | Oran | Peta | Riordan | Sandra | Tim | Victoria | Zane | — | |
List C | |||||||||||
Names | Alessia | Bruce | Catherine | Dylan | Edna | Fletcher | Gillian | Hadi | Ivana | Jack | Kate |
Laszlo | Mingzhu | Nathan | Oriana | Quincey | Raquel | Stan | Tatiana | Uriah | Yvette | — | |
List D | |||||||||||
Names | Alfred | Blanche | Caleb | Dara | Ernie | Frances | Greg | Hilda | Irving | Joyce | Kelvin |
Linda | Marco | Nora | Owen | Penny | Riley | Savannah | Trung | Verity | Wallace | — | |
List E | |||||||||||
Names | Amber | Blake | Claudia | Declan | Esther | Ferdinand | Gretel | Heath | Imogen | Joshua | Kimi |
Lucas | Marian | Niran | Odette | Paddy | Ruby | Stafford | Tiffany | Vernon | — | — | |
References: [6] |
Within the Southern Pacific basin in the Southern Hemisphere between 160°E – 120°W, a tropical cyclone is named when observations or Dvorak intensity analysis indicate that a system has gale force or stronger winds near the centre which are forecast to continue. [6] The Fiji Meteorological Service (FMS) names systems that are located between the Equator and 25°S, while the New Zealand MetService names systems (in conjunction with the FMS) that develop to the south of 25°S. [6] In order to enable local authorities and their communities in taking action to reduce the impact of a tropical cyclone, the FMS reserves the right to name a system early if it has a high chance of being named. [6] If a tropical cyclone causes loss of life or significant damage and disruption to the way of life of a community, then the name assigned to that cyclone is retired from the list of names for the region. [6] A replacement name is then submitted to the next World Meteorological Organization's RA V Tropical Cyclone Committee meeting. [6] The name of a tropical cyclone is determined by using Lists A–D in order, without regard to the year before restarting with List A. [6] List E contains names that will replace names on Lists A–D when needed. [6]
List A | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Names | Aru | Bina | Carol | Dovi | Eva | Fili | Gina | Hale | Irene | Josese | Kirio | Lute | Mata |
Nat | Osai | Pita | Rae | Seru | Tam | Urmil | Vaianu | Wati | Xavier | Yani | Zita | ||
List B | |||||||||||||
Names | Arthur | Becky | Chip | Denia | Elisa | Fotu | Glen | Hettie | Innis | Julie | Ken | Lin | Maciu |
Nisha | Orea | Palu | Rene | Sarah | Troy | Uinita | Vanessa | Wano | — | Yvonne | Zaka | ||
List C | |||||||||||||
Names | Alvin | Bune | Cyril | Danial | Eden | Florin | Garry | Haley | Isa | June | Kofi | Louise | Mike |
Niko | Opeti | Perry | Reuben | Solo | Tuni | Ulu | Victor | Wanita | — | Yates | Zidane | ||
List D | |||||||||||||
Names | Amos | Bart | Crystal | Dean | Ella | Fehi | Garth | Hola | Iris | Jo | Kala | Liua | Mona |
Neil | Oma | Pana | Rita | Samadiyo | Tasi | Uesi | Vicky | Wasi | — | Yabaki | Zazu | ||
List E (Standby) | |||||||||||||
Names | Adama | Ben | Christy | Dakai | Emosi | Feki | Germaine | Hart | Ili | Junina | Kosi | Lia | Manoah |
Neta | Olina | Paea | Rex | Sete | Temo | Uila | Velma | Wane | — | Yavala | Zanna | ||
References: [6] |
When a tropical or subtropical storm exists in the South Atlantic Ocean, the Brazilian Navy Hydrographic Center's Marine Meteorological Service names the system using a predetermined list of names. The names are assigned in alphabetical order and used in rotating order without regard to year. [7] The name "Kurumí" replaced "Kamby" in 2018 without the latter being used. In 2022, 32 new names were added. [20]
Names | Arani | Bapo | Cari | Deni | Eçaí | Guará | Iba | Jaguar | Kurumí | Mani | Oquira | Potira | Raoni | — | — | Ubá | Yakecan |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Akará | Biguá | Caiobá | — | Endy | Guarani | Iguaçú | Jaci | Kaeté | Maracá | Okanga | Poti | Reri | Sumé | Tupã | Upaba | Ybatinga | |
Aratu | Buri | Caiçara | — | Esapé | Guaí | Itã | Juru | Katu | Murici | Oryba | Peri | Reia | Samburá | Taubaté | Uruana | Ytu | |
References: [7] [20] |
A typhoon is a tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere and which produces sustained hurricane-force winds of at least 119 km/h (74 mph). This region is referred to as the Northwestern Pacific Basin, accounting for almost one third of the world's tropical cyclones. The term hurricane refers to a tropical cyclone in the north central and northeast Pacific, and the north Atlantic. In all of the preceding regions, weaker tropical cyclones are called tropical storms. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern, central, and western. The Regional Specialized Meteorological Center (RSMC) for tropical cyclone forecasts is in Japan, with other tropical cyclone warning centres for the northwest Pacific in Hawaii, the Philippines, and Hong Kong. Although the RSMC names each system, the main name list itself is coordinated among 18 countries that have territories threatened by typhoons each year.
The 1974 Pacific typhoon season was the first season on record to not feature a Category 5 equivalent super typhoon; a feat later repeated by the 1977 and 2017 seasons. Even so, the season was overly active, with 32 tropical storms and 16 typhoons being developed this year. It has no official bounds; it ran year-round in 1974, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
The 1969 Pacific typhoon season was the fourth least-active season on record. The season had no official bounds; it ran year-round in 1969, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
The 1968 Pacific typhoon season has no official bounds; it ran year-round in 1968, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
The 1967 Pacific typhoon season was one of the most active Pacific typhoon seasons on record, witnessing the formation of 35 tropical storms during the season. It began on January 1, 1967, though most storms usually form between June and December within the basin. The first storm of the season, Ruby, formed on January 28 west of the Philippines. The scope of this article is limited to the Pacific Ocean, north of the equator and west of the International Date Line. Storms that form east of the date line and north of the equator are called hurricanes; see 1967 Pacific hurricane season. Tropical depressions that are monitored by the United States' Joint Typhoon Warning Center (JTWC) were given a numerical designation with a "W" suffix, and any storms reaching 1-minute sustained winds of over 40 mph were given a name. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.
The 1965 Pacific typhoon season has no official bounds; it ran year-round in 1965, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.
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 classifications are used officially by the meteorological agencies monitoring the tropical cyclones, but other scales also exist, such as accumulated cyclone energy, the Power Dissipation Index, the Integrated Kinetic Energy Index, and the Hurricane Severity Index.
A Regional Specialized Meteorological Centre (RSMC) is responsible for the distribution of information, advisories, and warnings regarding the specific program they have a part of, agreed by consensus at the World Meteorological Organization as part of the World Weather Watch.
The 1997–98 Australian region cyclone season was a slightly below average tropical cyclone season. It ran from 1 November 1997 to 30 April 1998. The regional tropical cyclone operational plan also defines a tropical cyclone year separately from a tropical cyclone season, and the "tropical cyclone year" ran from 1 July 1997 to 30 June 1998.
The 1996–97 Australian region cyclone season was an above average tropical cyclone season. It ran from 1 November 1996 to 30 April 1997. The regional tropical cyclone operational plan also defines a tropical cyclone year separately from a tropical cyclone season, and the "tropical cyclone year" ran from 1 July 1996 to 30 June 1997.
The 2009–10 South-West Indian Ocean tropical cyclone season was a near average event in tropical cyclone formation. The season officially started on July 1, 2009, and ended on June 30, 2010, after incorporating the tropical cyclone season which ran from November 1 to April 30 for all areas except for Mauritius and the Seychelles, for which it ended on May 15, 2010. In this basin which officially runs from 30 to 90E, and is, to the south of the equator, the main warning center is the Regional Specialized Meteorological Center on La Réunion Island; however they delegate the naming of Cyclones to the Meteorological services of Mauritius and Madagascar.
The following outline is provided as an overview of and topical guide to tropical cyclones:
The practice of using names to identify tropical cyclones goes back several centuries, with storms named after places, saints or things they hit before the formal start of naming in each basin. Examples of such names are the 1928 Okeechobee hurricane and the 1938 New England hurricane. The system currently in place provides identification of tropical cyclones in a brief form that is easily understood and recognized by the public. The credit for the first usage of personal names for weather systems is given to the Queensland Government Meteorologist Clement Wragge, who named tropical cyclones and anticyclones between 1887 and 1907. This system of naming fell into disuse for several years after Wragge retired, until it was revived in the latter part of World War II for the Western Pacific. Over the following decades, formal naming schemes were introduced for several tropical cyclone basins, including the North and South Atlantic, Eastern, Central, Western and Southern Pacific basins as well as the Australian region and Indian Ocean.
Throughout 2006, 133 tropical cyclones formed in seven bodies of water known as tropical cyclone basins. Of these, 80 have been named, including two tropical cyclones in the South Atlantic Ocean, and a tropical cyclone in the Mediterranean Sea, by various weather agencies when they attained maximum sustained winds of 65 km/h (40 mph). The strongest storms of the year were Typhoon Yagi in the Western Pacific, and Cyclone Glenda of the Australian region. The deadliest and costliest storms of the year were a series of five typhoons that struck the Philippines and China; Chanchu, Bilis, Saomai, Xangsane, and Durian, with most of the damage being caused by Durian of November. So far, 27 Category 3 tropical cyclones formed, including five Category 5 tropical cyclones in the year. The accumulated cyclone energy (ACE) index for the 2006, as calculated by Colorado State University was 761 units.
During 1991, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, a total of 100 systems formed with 75 of these developing further and were named by the responsible warning centre. The strongest tropical cyclone of the year was Typhoon Yuri, which was estimated to have a minimum barometric pressure of 895 hPa (26.43 inHg). The deadliest tropical cyclone was Cyclone BOB 01, which caused 138,866 fatalities in Bangladesh, Northeastern India, Myanmar, Yunnan, while the costliest was Typhoon Mireille, which caused an estimated $10 billion USD in damage after striking Japan. Four Category 5 tropical cyclones formed in 1991.
Throughout 2008, 124 tropical cyclones have formed in bodies of water known as tropical cyclone basins. Of these, 83 have been named, by various weather agencies when they attained maximum sustained winds of 35 knots. The strongest storm of the year was Typhoon Jangmi in the Western Pacific Ocean. The deadliest storm of the year was Cyclone Nargis, which caused devastating and castatrophic destruction in Myanmar with 138,373 fatalities. The costliest storm of the year was Hurricane Ike, which wreaked havoc thorough Cuba and Texas, with $38 billion in damage. Throughout the year, 24 Category 3 tropical cyclones formed, including one Category 5 tropical cyclone in the year. The accumulated cyclone energy (ACE) index for the 2008, as calculated by Colorado State University was 613.9 units.
The 2025 Pacific typhoon season is an ongoing event in the annual cycle of tropical cyclone formation in the western Pacific Ocean. The season will run throughout 2025, though most tropical cyclones typically develop between May and October. The scope of this article is limited to the Pacific Ocean to the north of the equator between 100°E and 180th meridian. Within the northwestern Pacific Ocean, there are two separate agencies that assign names to tropical cyclones which can often result in a cyclone having two names. The Japan Meteorological Agency (JMA) will name a tropical cyclone if it has 10-minute sustained wind speeds of at least 65 km/h (40 mph) anywhere in the basin. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigns names to tropical cyclones which move into or form as a tropical depression in the Philippine Area of Responsibility (PAR), located between 135°E and 115°E and between 5°N–25°N, regardless of whether or not a tropical cyclone has already been given a name by the JMA. Tropical depressions that are monitored by the United States' Joint Typhoon Warning Center (JTWC) are given a number with a "W" suffix; W meaning west, a reference to the western pacific region.
During 2023, tropical cyclones formed in seven major bodies of water, commonly known as tropical cyclone basins. They were named by various weather agencies when they attained maximum sustained winds of 35 knots. Throughout the year, a total of 115 systems formed, with 79 of them being named. The most intense storm this year was Typhoon Mawar, which had a minimum pressure of 900 hPa (26.58 inHg). The deadliest tropical cyclone of the year was Storm Daniel, which killed at least 5,591 people in Libya, Greece, Turkey, and Bulgaria. Meanwhile, the costliest tropical cyclone was Typhoon Doksuri which caused at least $28.4 billion (USD) worth of damage in China, the Philippines and Taiwan, becoming the costliest on record outside the Atlantic Ocean basin. Among this year's systems, thirty became major tropical cyclones, of which nine intensified into Category 5 tropical cyclones on the Saffir–Simpson scale (SSHWS), the most since 2018. The accumulated cyclone energy (ACE) index for the 2023, as calculated by Colorado State University (CSU) was 857.4 units, which was above the 1991–2020 mean of 770.2 units.
In 2025, tropical cyclones will form in seven major bodies of water, commonly known as tropical cyclone basins. Tropical cyclones will be named by various weather agencies when they attain maximum sustained winds of 35 knots. The year has started, one determined strongest but so far no deadliest, or costliest storm yet.