During 2021,

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 ...

s formed in seven major bodies of water, commonly known as

tropical cyclone basins Traditionally, areas of tropical cyclone formation are divided into seven basins. These include the north Atlantic Ocean, the eastern and western parts of the northern Pacific Ocean, the southwestern Pacific, the southwestern and southeastern Ind ...

. Tropical cyclones will be assigned names by various weather agencies if they attain

maximum sustained winds The maximum sustained wind associated with a tropical cyclone is a common indicator of the intensity of the storm. Within a mature tropical cyclone, it is found within the eyewall at a distance defined as the radius of maximum wind, or RMW. Unl ...

of . During the year, one hundred forty-five systems have formed and ninety-one were named, including one subtropical depression and excluding one system, which was unofficial. One storm was given two names by the same RSMC. The most intense storm of the year was

Typhoon Surigae Typhoon Surigae, known in the Philippines as Super Typhoon Bising, was the strongest Northern Hemisphere tropical cyclone to form before the month of May, one of the most intense tropical cyclones on record and the strongest tropical cyclone wor ...

, with maximum 10-minute sustained wind speeds of and a minimum pressure of . The deadliest tropical cyclone was

Typhoon Rai Typhoon Rai, known in the Philippines as Super Typhoon Odette, was the second costliest typhoon in Philippine history behind Typhoon Haiyan in 2013. Rai was a powerful rare tropical cyclone that struck the Philippines in December 2021. Rai beca ...

, which caused 410 fatalities in the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

and 1 in

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

, while the costliest was

Hurricane Ida Hurricane Ida was a deadly and extremely destructive Category 4 Atlantic hurricane in 2021 that became the second-most damaging and intense hurricane to make landfall in the U.S. state of Louisiana on record, behind Hurricane Katrina in 200 ...

, which caused an estimated $75.25 billion

USD The United States dollar (symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official ...

in damage after striking

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

and the

Northeastern United States The Northeastern United States, also referred to as the Northeast, the East Coast, or the American Northeast, is a geographic region of the United States. It is located on the Atlantic coast of North America, with Canada to its north, the Southe ...

. Six Category 5 tropical cyclones formed during the year, tying

2003 File:2003 Events Collage.png, From top left, clockwise: The crew of STS-107 perished when the Space Shuttle Columbia disintegrated during reentry into Earth's atmosphere; SARS became an epidemic in China, and was a precursor to SARS-CoV-2; A des ...

. Tropical cyclones are primarily monitored by a group of ten warning centers, which have been designated as a

Regional Specialized Meteorological Centre 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 p ...

(RSMC) or a

Tropical Cyclone Warning Center 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 p ...

(TCWC) by the

World Meteorological Organization The World Meteorological Organization (WMO) is a specialized agency of the United Nations responsible for promoting international cooperation on atmospheric science, climatology, hydrology and geophysics. The WMO originated from the Internati ...

. These are the United States

National Hurricane Center The National Hurricane Center (NHC) is the division of the United States' NOAA/National Weather Service responsible for tracking and predicting tropical weather systems between the Prime Meridian and the 140th meridian west poleward to the 3 ...

(NHC) and

Central Pacific Hurricane Center The Central Pacific Hurricane Center (CPHC) of the United States National Weather Service is the official body responsible for tracking and issuing tropical cyclone warnings, watches, advisories, discussions, and statements for the Central Pacifi ...

, the

Japan Meteorological Agency The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation an ...

(JMA), the

Indian Meteorological Department The India Meteorological Department (IMD) is an agency of the Ministry of Earth Sciences of the Government of India. It is the principal agency responsible for meteorological observations, weather forecasting and seismology. IMD is headquarter ...

(IMD),

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 ...

(MFR), Indonesia's Badan Meteorologi, Klimatologi, dan Geofisika, the Australian

Bureau of Meteorology The Bureau of Meteorology (BOM or BoM) is an executive agency of the Australian Government responsible for providing weather services to Australia and surrounding areas. It was established in 1906 under the Meteorology Act, and brought together ...

(BOM), Papua New Guinea's National Weather Service, 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. ...

(FMS) as well as New Zealand's

MetService Meteorological Service of New Zealand Limited (MetService - Te Ratonga Tirorangi) is the national meteorological service of New Zealand. MetService was established as a state-owned enterprise in 1992. It employs about 300 staff, and its headqua ...

. Other notable warning centers include the

Philippine Atmospheric, Geophysical, and Astronomical Services Administration Pagasa may refer to: * ''Pagasa'' (genus), an insect genus in the family Nabidae *PAGASA, an acronym for the Philippine Atmospheric, Geophysical and Astronomical Services Administration *"May Pagasa", a pen-name of José Rizal *Pagasa, alternate s ...

(PAGASA), 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 the Brazilian Navy Hydrographic Center (BNHC). Major Tropical Cyclones of 2021

Global atmospheric and hydrological conditions

The La Niña from the previous year persisted into 2021, though by March and April it had begun to weaken. On May 13, the

National Oceanic and Atmospheric Administration The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...

(NOAA) assessed that the

El Niño–Southern Oscillation El Niño–Southern Oscillation (ENSO) is an irregular periodic variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean, affecting the climate of much of the tropics and subtropics. The warming phase of the sea te ...

(ENSO) transitioned into its neutral phase. However, following cooler than normal temperatures in the tropical eastern Pacific Ocean, NOAA declared that the global weather conditions shifted back to La Niña by October. Two systems, Tropical Depression 05 and Severe Tropical Storm Danilo persisted into 2021 after developing within the South-West Indian Ocean during December 2020. The

COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identif ...

disrupted responses and recovery in areas affected by tropical cyclones.

Summary

ImageSize = width:1600 height:325 PlotArea = top:10 bottom:80 right:20 left:20 Legend = columns:3 left:20 top:58 columnwidth:180 AlignBars = early DateFormat = dd/mm/yyyy Period = from:28/12/2020 till:10/01/2022 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/01/2021 Colors = id:canvas value:gray(0.88) id:NATL value:blue legend: North_Atlantic_Ocean id:EPAC/CPAC value:green legend: East_and_Central_Pacific_Ocean id:WPAC value:red legend: West_Pacific_Ocean id:NIO value:orange legend: North_Indian_Ocean id:SWIO value:purple legend: Southwest_Indian_Ocean id:SPAC value:yellow legend: South_Pacific_Ocean id:AUSR value:pink legend: Australian_Region id:SATL value:black legend: South_Atlantic_Ocean id:MED value:gray(0.99) legend: Mediterranean_Sea Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:28/12/2020 till:03/01/2021 color:SWIO text:"05" from:28/12/2020 till:12/01/2021 color:SWIO text:"Danilo" from:01/01/2021 till:06/01/2021 color:AUSR text:" Imogen" from:05/01/2021 till:10/01/2021 color:AUSR text:"06U" from:13/01/2021 till:17/01/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip from:17/01/2021 till:19/01/2021 color:SWIO text:"Joshua" from:14/01/2021 till:25/01/2021 color:SWIO text:" Eloise" from:15/01/2021 till:23/01/2021 color:AUSR text:"08U" from:16/01/2021 till:19/01/2021 color:AUSR text:" Kimi" from:19/01/2021 till:27/01/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:27/01/2021 till:29/01/2021 color:SWIO text:"09" from:19/01/2021 till:20/01/2021 color:WPAC text:"TD" from:22/01/2021 till:28/01/2021 color:SPAC text:"04F" from:25/01/2021 till:01/02/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:01/02/2021 till:03/02/2021 color:SPAC text:"Lucas" from:26/01/2021 till:01/02/2021 color:SPAC text:" Ana" from:27/01/2021 till:28/01/2021 color:SPAC text:"06F" from:28/01/2021 till:05/02/2021 color:AUSR text:"12U" from:29/01/2021 till:31/01/2021 color:SPAC text:"Bina" from:04/02/2021 till:13/02/2021 color:SWIO text:"Faraji" from:06/02/2021 till:06/02/2021 color:SATL text:"01Q" barset:break from:06/02/2021 till:07/02/2021 color:AUSR text:"13U" from:07/02/2021 till:11/02/2021 color:SPAC text:"09F" from:10/02/2021 till:23/02/2021 color:SWIO text:" Guambe" from:14/02/2021 till:17/02/2021 color:SATL text:"SD" from:16/02/2021 till:23/02/2021 color:WPAC text:" Dujuan" from:18/02/2021 till:23/02/2021 color:AUSR text:"TL" from:21/02/2021 till:01/03/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:01/03/2021 till:02/03/2021 color:SWIO barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:02/03/2021 till:09/03/2021 color:AUSR text:"Marian" from:22/02/2021 till:24/02/2021 color:SPAC text:"10F" from:27/02/2021 till:05/03/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:05/03/2021 till:08/03/2021 color:SPAC text:"

Niran Na'aran ( he, נערן), formerly known as Niran () is an Israeli settlement organized as a kibbutz in the West Bank. Located in Area C of the Jordan Valley near Jericho,

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Koguma is a Japanese professional wrestler, currently working for the Japanese promotion World Wonder Ring Stardom where she is a former two-time Goddess of Stardom Champion with Hazuki and a former High Speed Champion. Professional wrestling career In ...

from:12/06/2021 till:16/06/2021 color:EPAC/CPAC text:"Carlos" from:14/06/2021 till:16/06/2021 color:NATL text:"Bill" from:18/06/2021 till:20/06/2021 color:EPAC/CPAC text:"

Dolores Dolores, Spanish for "pain; grief", most commonly refers to: * Our Lady of Sorrows or La Virgen María de los Dolores * Dolores (given name) Dolores may also refer to: Film * ''Dolores'' (2017 film), an American documentary by Peter Bratt * ' ...

" from:19/06/2021 till:22/06/2021 color:NATL text:"

Claudette Claudette is a feminine form of the masculine given name Claude (given name), Claude. Claudette may refer to: People * Claudette Boyer (born 1938), Canadian politician * Claudette Bradshaw (1949–2022), Canadian politician * Claudette Bryanston ...

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Enrique Enrique () is the Spanish language, Spanish variant of the given name Heinrich (given name), Heinrich of Germanic origin. Equivalents in other languages are Henry (given name), Henry (English), Enric (Catalan), Enrico (Italian), Henrik (Swedish, D ...

" from:28/06/2021 till:29/06/2021 color:NATL text:"

Danny Danny is a masculine given name. It is related to the male name Daniel. It may refer to: People *Danny Altmann, British immunologist *Danny Antonucci, Canadian animator, director, producer, and writer *Danny Baker (born 1957), English journalis ...

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Fred Fred may refer to: People * Fred (name), including a list of people and characters with the name Mononym * Fred (cartoonist) (1931–2013), pen name of Fred Othon Aristidès, French * Fred (footballer, born 1949) (1949–2022), Frederico Ro ...

" from:13/08/2021 till:21/08/2021 color:NATL text:"

Grace Grace may refer to: Places United States * Grace, Idaho, a city * Grace (CTA station), Chicago Transit Authority's Howard Line, Illinois * Little Goose Creek (Kentucky), location of Grace post office * Grace, Carroll County, Missouri, an uninco ...

" from:16/08/2021 till:23/08/2021 color:NATL text:"

Henri Henri is an Estonian, Finnish, French, German and Luxembourgish form of the masculine given name Henry (given name), Henry. People with this given name ; French noblemen :'' See the 'List_of_rulers_named_Henry#France, List of rulers named Henry ...

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Nora Nora, NORA, or Norah may refer to: * Nora (name), a feminine given name People with the surname * Arlind Nora (born 1980), Albanian footballer * Pierre Nora (born 1931), French historian Places Australia * Norah Head, New South Wales, headland ...

" from:26/08/2021 till:01/09/2021 color:NATL text:"

Ida Ida or IDA may refer to: Astronomy * Ida Facula, a mountain on Amalthea, a moon of Jupiter *243 Ida, an asteroid *International Docking Adapter, a docking adapter for the International Space Station Computing *Intel Dynamic Acceleration, a techn ...

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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 ...

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Olaf Olaf or Olav (, , or British ; Old Norse: ''Áleifr'', ''Ólafr'', ''Óleifr'', ''Anleifr'') is a Scandinavian and German given name. It is presumably of Proto-Norse origin, reconstructed as ''*Anu-laibaz'', from ''anu'' "ancestor, grand-father" a ...

" from:08/09/2021 till:10/09/2021 color:NATL text:"

Mindy Mindy is an English feminine given name, originally a diminutive of Melinda. Notable people with the name include: People *Mindy Aloff, American editor, journalist, essayist, and dance critic * Mindy Baha El Din (1958-2013), American-born Egyptian ...

" from:12/09/2021 till:15/09/2021 color:NIO text:"BOB 03" from:12/09/2021 till:16/09/2021 color:NATL text:"

Nicholas Nicholas is a male given name and a surname. The Eastern Orthodox Church, the Roman Catholic Church, and the Anglicanism, Anglican Churches celebrate Saint Nicholas every year on December 6, which is the name day for "Nicholas". In Greece, the n ...

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Dianmu Dianmu (), also known as Leizi, is the Chinese goddess of lightning, who is said to have used flashing mirrors to send bolts of lightning across the sky. She is married to Leigong, the god of thunder. She is one of the gods who work together to ...

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Lionrock Lionrock was a British big beat group, comprising record producer Justin Robertson, MC Buzz B, and producer, engineer, programmer and synthesist Roger Lyons. Lyons replaced recording engineer Mark Stagg in 1995. Their biggest chart success came ...

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Pamela Pamela may refer to: *''Pamela; or, Virtue Rewarded'', a novel written by Samuel Richardson in 1740 *Pamela (name), a given name and, rarely, a surname *Pamela Spence, a Turkish pop-rock singer. Known as her stage name "Pamela" * MSC ''Pamela'', ...

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Rick Rick may refer to: People *Rick (given name), a list of people with the given name *Alan Rick (born 1976), Brazilian politician, journalist, pastor and television personality *Johannes Rick (1869–1946), Austrian-born Brazilian priest and mycol ...

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Apollo Apollo, grc, Ἀπόλλωνος, Apóllōnos, label=genitive , ; , grc-dor, Ἀπέλλων, Apéllōn, ; grc, Ἀπείλων, Apeílōn, label=Arcadocypriot Greek, ; grc-aeo, Ἄπλουν, Áploun, la, Apollō, la, Apollinis, label= ...

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Wanda Wanda is a female given name of Polish origin. It probably derives from the tribal name of the Wends.Campbell, Mike"Meaning, Origin, and History of the Name Wanda."''Behind the Name.'' Accessed on August 12, 2010. The name has long been popular in ...

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Blas Basic Linear Algebra Subprograms (BLAS) is a specification that prescribes a set of low-level routines for performing common linear algebra operations such as vector addition, scalar multiplication, dot products, linear combinations, and matrix ...

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Jawad Jawad is a Tehsil and a Nagar Panchayat in Neemuch district in the Indian state of Madhya Pradesh. There are six towns and 105 villages in Jawad. Demographics As of the 2011 Census of India The 2011 Census of India or the 15th India ...

" from:10/12/2021 till:13/12/2021 color:SATL text:"

Ubá Ubá is a municipality located in the Zona da Mata mesoregion of Minas Gerais, Brazil, southeast of Belo Horizonte, and north of Rio de Janeiro. The estimated population of the city of Ubá was 116,797 in 2020. The current mayor of Ubá is Eds ...

" from:10/12/2021 till:13/12/2021 color:AUSR barset:break barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip barset:skip from:13/12/2021 till:14/12/2021 color:SPAC text:

Ruby A ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sa ...

from:11/12/2021 till:21/12/2021 color:WPAC text:"

Rai RAI – Radiotelevisione italiana (; commercially styled as Rai since 2000; known until 1954 as Radio Audizioni Italiane) is the national public broadcasting company of Italy, owned by the Ministry of Economy and Finance. RAI operates many ter ...

" from:13/12/2021 till:15/12/2021 color:AUSR text:"06U" from:14/12/2021 till:17/12/2021 color:WPAC text:" 29W" from:17/12/2021 till:21/12/2021 color:SPAC text:"02F" from:24/12/2021 till:06/01/2022 color:AUSR text:"Seth" barset:break from:26/12/2021 till:03/01/2022 color:AUSR text:"TL" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:28/12/2020 till:01/01/2021 text:Dec. '20 from:01/01/2021 till:31/01/2021 text:January from:01/02/2021 till:28/02/2021 text:February from:01/03/2021 till:31/03/2021 text:March from:01/04/2021 till:30/04/2021 text:April from:01/05/2021 till:31/05/2021 text:May from:01/06/2021 till:30/06/2021 text:June from:01/07/2021 till:31/07/2021 text:July from:01/08/2021 till:31/08/2021 text:August from:01/09/2021 till:30/09/2021 text:September from:01/10/2021 till:31/10/2021 text:October from:01/11/2021 till:30/11/2021 text:November from:01/12/2021 till:31/12/2021 text:December from:01/01/2022 till:10/01/2022 text: Jan. '22 TextData = pos:(540,30) text:"This table is based on the" pos:(660,30) text:"

North Atlantic Ocean

2021 Atlantic hurricane season summary map

The 2021 Atlantic hurricane season officially ran from June 1 to November 30. A total of 21 tropical depressions formed, all of which reached at least tropical or subtropical intensity. The season ranks as the third-most active of all time in the Atlantic basin, behind only

2005 File:2005 Events Collage V2.png, From top left, clockwise: Hurricane Katrina in the Gulf of Mexico; the Funeral of Pope John Paul II is held in Vatican City; "Me at the zoo", the first video ever to be uploaded to YouTube; Eris was discovered in ...

and

2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...

. Consequently, the 2021 Atlantic hurricane season was the third on record to exhaust its naming list. Nine of the systems lasted for two days or less, tied with

2007 File:2007 Events Collage.png, From top left, clockwise: Steve Jobs unveils Apple's first iPhone; TAM Airlines Flight 3054 overruns a runway and crashes into a gas station, killing almost 200 people; Former Pakistani Prime Minister of Pakistan, Pr ...

for the most since the NHC began monitoring subtropical systems in

1968 The year was highlighted by protests and other unrests that occurred worldwide. Events January–February * January 5 – "Prague Spring": Alexander Dubček is chosen as leader of the Communist Party of Czechoslovakia. * Januar ...

. Although the season was highly active in terms of the number of named storms, seven of those tropical or subtropical systems intensified into a hurricane and four of those became a major hurricane, which is near-average and just slightly above-average, respectively. Nonetheless, 2021 marked the record sixth consecutive above-average season in the Atlantic. The ongoing warm Atlantic multidecadal oscillation, which began in

1995 File:1995 Events Collage V2.png, From left, clockwise: O.J. Simpson is O. J. Simpson murder case, acquitted of the murders of Nicole Brown Simpson and Ronald Goldman from the 1994, year prior in "The Trial of the Century" in the United States; The ...

, contributed to the season's high level of activity, as it led to above-average

sea surface temperature Sea surface temperature (SST), or ocean surface temperature, is the ocean temperature close to the surface. The exact meaning of ''surface'' varies according to the measurement method used, but it is between and below the sea surface. Air mass ...

s in the Atlantic basin. Other factors included the presence of a

La Niña La Niña (; ) is an oceanic and atmospheric phenomenon that is the colder counterpart of as part of the broader El Niño–Southern Oscillation (ENSO) climate pattern. The name ''La Niña'' originates from Spanish for "the girl", by an ...

and abnormally heavy West African Monsoon precipitation. Collectively, the tropical and subtropical systems of the 2021 Atlantic hurricane season caused 194 deaths and about $80.727 billion in damage, making it the third costliest season on record. Eight named storms struck the United States, which is the third most ever, behind only the previous season and

1916 Events Below, the events of the First World War have the "WWI" prefix. January * January 1 – The British Royal Army Medical Corps carries out the first successful blood transfusion, using blood that had been stored and cooled. * ...

. In conjunction with 2020, 19 systems of at least tropical storm intensity made landfall in the country during the two seasons, surpassing the record of 15 during the

2004 2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and its Abolition (by UNESCO). Events January * January 3 – Flash Airlines Flight 6 ...

and 2005 seasons combined. As a result, some regions significantly impacted during the 2020 season were once again hit hard in 2021, especially eastern

and portions of the

Rhode Island Rhode Island (, like ''road'') is a U.S. state, state in the New England region of the Northeastern United States. It is the List of U.S. states by area, smallest U.S. state by area and the List of states and territories of the United States ...

was struck by two tropical systems, Elsa and

, an unusual occurrence especially given that the state had recorded no landfalls since

Bob Bob, BOB, or B.O.B. may refer to: Places *Mount Bob, New York, United States *Bob Island, Palmer Archipelago, Antarctica People, fictional characters, and named animals *Bob (given name), a list of people and fictional characters *Bob (surname) ...

1991 File:1991 Events Collage.png, From left, clockwise: Boris Yeltsin, elected as Russia's first president, waves the new flag of Russia after the 1991 Soviet coup d'état attempt, orchestrated by Soviet hardliners; Mount Pinatubo erupts in the Phil ...

. Four tropical cyclones or their remnants Elsa,

, and

each caused at least $1 billion in damage in the United States. The ACE index for the 2021 Atlantic hurricane season, as calculated by Colorado State University using data from the NHC, was approximately 146 units. The totals represent the sum of the squares for every (sub)tropical storm's intensity of over 39 mph (63 km/h), divided by 10,000. Therefore, the ACE index value does not include tropical depressions. Each season dating back to 2016 recorded ACE index values exceeding 129, which senior research associate Brian McNoldy of the

University of Miami The University of Miami (UM, UMiami, Miami, U of M, and The U) is a private research university in Coral Gables, Florida. , the university enrolled 19,096 students in 12 colleges and schools across nearly 350 academic majors and programs, incl ...

described as "unprecedented even for four years, let alone six!" Throughout the season,

NOAA Hurricane Hunters The NOAA Hurricane Hunters are a group of aircraft used for hurricane reconnaissance by the United States National Oceanic and Atmospheric Administration (NOAA). They fly through hurricanes to help forecasters and scientists gather operational an ...

logged 462.2 flight hours, conducting 58 eyewall passages and deploying 1,310

dropsonde A dropsonde is an expendable weather reconnaissance device created by the National Center for Atmospheric Research (NCAR), designed to be dropped from an aircraft at altitude over water to measure (and therefore track) storm conditions as the devi ...

s in the process. NOAA also deployed 66 underwater gliders, which made 78,328 observations on oceanic salinity and temperatures. Additionally, NOAA used five unmanned saildrones to increase documentation on atmospheric and oceanic conditions across the Atlantic basin. One of the five saildrones became the first research vessel to ever enter a major hurricane when it reached

Hurricane Sam Hurricane Sam was a strong, long-lived Cape Verde hurricane that threatened Bermuda, lasting from late September through early October. It was the fifth longest-lasting intense Atlantic hurricane, as measured by accumulated cyclone energy, since r ...

on September 30. It recorded sustained winds of 125 mph (205 km/h) and waves up to in height while also capturing video footage from inside the storm. Tropical Storm Ana formed on May 22, making 2021 the seventh consecutive year in which a tropical or subtropical cyclone formed before the season's official start. Ana formed in a location where no tropical storms within the month of May had been documented since before 1950. In mid-June, a rapidly developing non-tropical low offshore of the

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...

coast became Tropical Storm Bill. The system lasted for only two days before becoming extratropical. Later that month,

Tropical Storm Claudette The name Claudette has been used for eight tropical cyclones in the Atlantic Ocean and for one in the South-West Indian Ocean. In the Atlantic Ocean: *Tropical Storm Claudette (1979), traversed the Greater Antilles and made its final landfall near ...

formed just off the coast of Louisiana and Tropical Storm Danny developed offshore

South Carolina )''Animis opibusque parati'' ( for, , Latin, Prepared in mind and resources, links=no) , anthem = " Carolina";" South Carolina On My Mind" , Former = Province of South Carolina , seat = Columbia , LargestCity = Charleston , LargestMetro = ...

. Overall, June featured three named storms, tied with

1886 Events January–March * January 1 – Upper Burma is formally annexed to British Burma, following its conquest in the Third Anglo-Burmese War of November 1885. * January 5– 9 – Robert Louis Stevenson's novella ''Strange ...

1909 Events January–February * January 4 – Explorer Aeneas Mackintosh of the Imperial Trans-Antarctic Expedition escaped death by fleeing across ice floes. * January 7 – Colombia recognizes the independence of Panama. * Januar ...

1936 Events January–February * January 20 – George V of the United Kingdom and the British Dominions and Emperor of India, dies at his Sandringham Estate. The Prince of Wales succeeds to the throne of the United Kingdom as King E ...

, and 1968 for the most during that month. Elsa formed on June 30 and became a tropical storm on the following day, making it the earliest fifth-named storm on record, surpassing the previous record by five days, set by Tropical Storm Edouard in 2020. It soon became the first hurricane of the season before impacting the

Caribbean The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Se ...

and making landfall in

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

. Later, Elsa brought impacts to the Eastern United States, striking Florida on July 7 and New York and Rhode Island on July 9. Thereafter, activity came to a monthlong halt due to unfavorable conditions across the basin. On August 11, Fred formed in the eastern Caribbean, bringing impacts to the Greater and

Lesser Antilles The Lesser Antilles ( es, link=no, Antillas Menores; french: link=no, Petites Antilles; pap, Antias Menor; nl, Kleine Antillen) are a group of islands in the Caribbean Sea. Most of them are part of a long, partially volcanic island arc betwe ...

, and the Southeastern United States. A few days later,

formed and strengthened into the second hurricane and first major hurricane of the season, and brought impacts to the Greater Antilles and the

Yucatán Peninsula The Yucatán Peninsula (, also , ; es, Península de Yucatán ) is a large peninsula in southeastern Mexico and adjacent portions of Belize and Guatemala. The peninsula extends towards the northeast, separating the Gulf of Mexico to the north ...

, before making landfall in the

Mexican state The states of Mexico are first-level administrative territorial entities of the country of Mexico, which is officially named Mexico, United Mexican States. There are 32 federal entities in Mexico (31 states and the capital, Mexico City, as a sepa ...

Veracruz Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y Soberano de Veracruz de Ignacio de la Llave), is one of the 31 states which, along with Me ...

. A third tropical system, Henri, developed on August 16, near

Bermuda ) , anthem = "God Save the King" , song_type = National song , song = " Hail to Bermuda" , image_map = , map_caption = , image_map2 = , mapsize2 = , map_caption2 = , subdivision_type = Sovereign state , subdivision_name = , e ...

. Henri meandered for several days before becoming the third hurricane of the season on August 21 and impacted New England, causing record flooding in some places. Towards the end of the month, Hurricane Ida formed, leaving major damage in western Cuba before rapidly intensifying into a Category 4 hurricane and making landfall in southeastern Louisiana at peak intensity, producing widespread, catastrophic damage. Its remnants then generated a deadly tornado outbreak and widespread, record-breaking flooding across the Northeastern United States. Two other tropical storms, Julian and Kate, also existed briefly during this time but remained at sea.

formed on the last day of August and strengthened into a major hurricane early in September. It became the first hurricane to make landfall on

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

since

Igor Igor may refer to: People * Igor (given name), an East Slavic given name and a list of people with the name * Mighty Igor (1931–2002), former American professional wrestler * Igor Volkoff, a professional wrestler from NWA All-Star Wrestling * ...

2010 File:2010 Events Collage New.png, From top left, clockwise: The 2010 Chile earthquake was one of the strongest recorded in history; The Eruption of Eyjafjallajökull in Iceland disrupts air travel in Europe; A scene from the opening ceremony of ...

. As the mid-point of the hurricane season approached, Mindy formed on September 8 and struck the

Florida Panhandle The Florida Panhandle (also West Florida and Northwest Florida) is the northwestern part of the U.S. state of Florida; it is a Salient (geography), salient roughly long and wide, lying between Alabama on the north and the west, Georgia (U. ...

shortly thereafter. It was followed by Nicholas, which developed on September 12 and made landfall along the central

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

coast two days later as a hurricane. Three tropical storms—Odette, Peter, and Rose—then formed in quick succession and were steered by prevailing winds away from any interaction with land. The busy pace of storm-formation continued late into September. Sam, a long-lived major hurricane, developed in the central tropical Atlantic and proceeded to rapidly intensify from a tropical depression to a hurricane within 24 hours on September 23 and 24. Sam peaked in strength on September 26 as a high-end Category 4 hurricane. It remained a major hurricane (Category 3 or stronger) for nearly eight consecutive days, the longest continuous stretch at that intensity for an Atlantic hurricane since

Ivan Ivan () is a Slavic languages, Slavic male given name, connected with the variant of the Greek name (English: John (given name), John) from Hebrew language, Hebrew meaning 'God is gracious'. It is associated worldwide with Slavic countries. T ...

, in 2004. Meanwhile,

Subtropical Storm A subtropical cyclone is a weather system that has some characteristics of both tropical and an extratropical cyclone. As early as the 1950s, meteorologists were uncertain whether they should be characterized as tropical or extratropical cyclo ...

Teresa formed north of Bermuda on September 24. Short-lived Victor developed late in the month at an unusually low

latitude In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pol ...

of 8.1°N, tying Kirk in 2018 and behind only an unnamed 1902 hurricane (7.7°N) for the southernmost location in which an Atlantic system has reached tropical storm intensity. However,

tropical cyclogenesis Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropical cyclogenesis occurs are distinctly different from those through which temperate cyclogenesis occurs. Tropi ...

then paused again for much of the month of October, primarily due to the presence of drier air. For the first time since

2006 File:2006 Events Collage V1.png, From top left, clockwise: The 2006 Winter Olympics open in Turin; Twitter is founded and launched by Jack Dorsey; The Nintendo Wii is released; Montenegro 2006 Montenegrin independence referendum, votes to declare ...

and only the second time during the hyperactive era which began in 1995, no named storms developed between October 6 and October 30. Finally, Subtropical Storm Wanda formed in the central North Atlantic on October 30 and transitioned into a fully tropical storm on November 1. This system was the same storm that previously had brought rain and damaging wind gusts to southern

New England New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian provinces ...

as a potent

nor'easter A nor'easter (also northeaster; see below), or an East Coast low is a synoptic-scale extratropical cyclone in the western North Atlantic Ocean. The name derives from the direction of the winds that blow from the northeast. The original use o ...

. Wanda remained a tropical cyclone until transitioning into an extratropical low on November 7, which marked the conclusion of activity during the 2021 Atlantic hurricane season.

Eastern & Central Pacific Oceans

2021 Pacific hurricane season summary map

The 2021 Pacific hurricane season began on May 15 in the East Pacific and on June 1 in the Central Pacific. Overall activity included 19 named storms, 8 hurricanes, and 2 major hurricanes. The total of named storms was above the 1991–2020 average, while the number of hurricanes was average, and the sum of major hurricanes was below average. The official start date was preceded by the formation of Tropical Storm Andres, the earliest named storm on record in the East Pacific. It was accompanied by Tropical Storm Blanca later in May. The following month included the formations of tropical storms Carlos and Dolores, in addition to Hurricane Enrique. While Carlos remained away from land, Dolores made landfall on the Mexico coastline and Enrique delivered impacts across southwestern sections of the country while it passed just offshore. Above-average seasonal activity continued into July with the development of hurricanes Felicia and Hilda, Tropical Storm Guillermo, and Tropical Depression Nine-E; none of these cyclones impacted land. In August, Hurricane Nora made landfall along the west-central coastline of Mexico. Its formation was preceded by Hurricane Linda and tropical storms Ignacio, Kevin, and Marty, which did not impact land. September marked a stark turn around to the activity of the previous months, as it only featured Olaf, which struck

San José del Cabo San José del Cabo (, ''Saint Joseph of the Cape'') is a city located in southern Baja California Sur state, Mexico. It is the seat of Los Cabos Municipality lying at a shallow bay northeast of Cabo San Lucas on the Gulf of California. The city h ...

as a Category 2 hurricane. Two hurricanes – Pamela and Rick – moved ashore the Mexico coastline in October. An additional two storms, Terry and Sandra, developed in November, the fourth consecutive November with at least one named storm. Furthermore, those cyclones existed simultaneously, the first occurrence in the East Pacific during November on record. The Accumulated Cyclone Energy index for the 2021 Pacific hurricane season as calculated by Colorado State University using data from the National Hurricane Center was approximately 94 units, about 30 percent below average.

Western Pacific Ocean

On January 19, a tropical depression formed, becoming the first Northern Hemisphere tropical cyclone of the year and of the 2021 Pacific typhoon season. It brought minor damage to the

. On February 16, another system formed, with the PAGASA giving it the name ''Auring'' and the JTWC designating the system as ''01W''. On February 17, it was named '' Dujuan'' by the JMA. After passing over

Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Caro ...

, it brought minor damage to the Philippines before dissipating on February 22. On March 14, a tropical depression formed near the

Sulu Sea The Sulu Sea ( fil, Dagat Sulu; Tausug: ''Dagat sin Sūg''; Chavacano: ''Mar de Sulu''; Cebuano: ''Dagat sa Sulu''; Hiligaynon: ''Dagat sang Sulu''; Karay-a: ''Dagat kang Sulu''; Cuyonon: ''Dagat i'ang Sulu''; ms, Laut Sulu) is a body o ...

, though it was short-lived and it quickly degenerated back into a low-pressure area. On April 12, a tropical depression formed south of

Woleai Woleai, also known as Oleai, is a coral atoll of twenty-two islands in the western Caroline Islands in the Pacific Ocean, and forms a legislative district in the Yap State in the Federated States of Micronesia and is located approximately west-n ...

, and on the next day, the JMA upgraded it to a tropical storm, giving it the name '' Surigae''. On April 16, it was given the name Bising by the PAGASA as it entered the

Philippine Area of Responsibility The Philippine Area of Responsibility (PAR) is an area in the Northwestern Pacific where PAGASA, the Philippines' national meteorological agency, monitors weather occurrences. Significant weather disturbances, specifically tropical cyclones tha ...

. Surigae underwent

rapid intensification In meteorology, rapid intensification is a situation where a tropical cyclone intensifies dramatically in a short period of time. The United States National Hurricane Center defines rapid intensification as an increase in the maximum sustained w ...

, becoming the strongest tropical cyclone to form before May in the Northern Hemisphere. After bringing severe damages to the Philippines, it transitioned into an

extratropical cyclone Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth. Extratropical cyclones are capable of ...

on April 24 and dissipated on April 30. On May 12, the JTWC began tracking a tropical depression, giving it the designation ''03W'' with the PAGASA assigning it the local name ''Crising''. It made landfall on the Philippines as a weak tropical storm, however damage was minimal due to the storm's small size. Two tropical depressions formed near Palau on May 29 and May 30 respectively, with the former being assigned the name ''Choi-wan'' by the JMA. Choi-wan moved through the Philippines before merging with the

Meiyu front The ''meiyu'' front, also known as ''baiu'' front, is a persistent nearly stationary weak Weather front, baroclinic zone in the lower troposphere. It is located over the east coast of China and Taiwan at its western end, and over the Pacific Ocea ...

on June 4. After a week gap on June 11, another tropical depression formed over the

South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phil ...

and it intensified further to a tropical storm named as ''Koguma''. However, it remained short-lived and made landfall over the nation of

by the next day and soon dissipated thereafter. After 10 days on June 21, Tropical Storm Champi formed. As a tropical depression, it affected the

Mariana Islands The Mariana Islands (; also the Marianas; in Chamorro: ''Manislan Mariånas'') are a crescent-shaped archipelago comprising the summits of fifteen longitudinally oriented, mostly dormant volcanic mountains in the northwestern Pacific Ocean, betw ...

and

Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...

before intensifying into a weak typhoon. It became extratropical on 27 June. A tropical depression with its Filipino name, Emong, formed a couple hundred miles from

Mainland China "Mainland China" is a geopolitical term defined as the territory governed by the People's Republic of China (including islands like Hainan or Chongming), excluding dependent territories of the PRC, and other territories within Greater China. ...

. The storm remained a tropical depression and later dissipated. Another tropical depression formed near Vietnam a couple days later, the storm later made landfall in the country as a weak tropical depression. A tropical depression formed later in the month having the Filipino name Fabian, later intensifying to a tropical storm with the JMA giving it the name '' In-fa''. In-fa later intensified to a typhoon, made several landfalls in China and dissipated on July 31. Meanwhile, Cempaka formed in the

and made landfall on Southern China and Vietnam causing moderate damage. Later, Tropical Storm Nepartak struck Miyagi Prefecture in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. The system had disturbed the ongoing Summer Olympics held in Japan. Nepartak was also the first tropical storm to hit Miyagi since records began in 1951. By the end of July, activities exploded as 8 systems formed within a week however, 5 of them were rather weak and dissipated without becoming tropical storms. The remaining 3 were named Lupit, Nida, and Mirinae. Lupit affected most of

East Asia East Asia is the eastern region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea and ...

while Nida and Mirinae approached

but stayed away from land. Later, a tropical wave from the Central Pacific traveled a long distance and became a tropical storm over the

Philippine Sea The Philippine Sea is a marginal sea of the Western Pacific Ocean east of the Philippine archipelago (hence the name), the largest in the world, occupying an estimated surface area of . The Philippine Sea Plate forms the floor of the sea. Its ...

, which was named Omais (Isang). Omais caused minor damage to The Ryukyu Islands and

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...

. After Omais, the rest of August remained quiet when Conson formed off the coast of the Philippines and became a typhoon in less than 24 hours. Conson struck the Philippines and Vietnam causing severe damage. Then, Chanthu formed and became the second super typhoon of the season. Chanthu then headed over to the

East China Sea The East China Sea is an arm of the Western Pacific Ocean, located directly offshore from East China. It covers an area of roughly . The sea’s northern extension between mainland China and the Korean Peninsula is the Yellow Sea, separated b ...

where the system weakened and stalled. It later made landfall over

Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...

and dissipated south of the country. On September 21, two new systems formed and was named Dianmu and Mindulle. Dianmu headed over to

where it made landfall. Meanwhile, following Chanthu, Mindulle rapidly intensified into the season's third super typhoon. Mindulle weakened and strengthened multiple times due to cool dry air and cool sea-surface temperatures. Mindulle eventually passed through

Izu Islands The are a group of volcanic islands stretching south and east from the Izu Peninsula of Honshū, Japan. Administratively, they form two towns and six villages; all part of Tokyo Prefecture. The largest is Izu Ōshima, usually called simply Ō ...

causing minor damage. On the start of October, Tropical storm

formed east of the

and made landfall on the Chinese Island of

Hainan Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...

. Soon, two tropical depressions named ''Maring'' and ''Nando'' formed. However, the two storms eventually merged into Tropical Storm Kompasu due to the storms being close to each other. Kompasu then intensified near typhoon strength and affected the same area where Lionrock had struck. The storm caused severe damage. Later, another tropical depression formed near

Wake Island Wake Island ( mh, Ānen Kio, translation=island of the kio flower; also known as Wake Atoll) is a coral atoll in the western Pacific Ocean in the northeastern area of the Micronesia subregion, east of Guam, west of Honolulu, southeast of To ...

, which was eventually named Namtheun. Namtheun however, stayed away from any landmass and became an

. On October 23, a tropical depression formed near

which then was named Malou. Malou reached its peak as a Category 2 typhoon but it did not effect any land. A day after Malou formed, another tropical depression formed near the Philippines and the JTWC designating the system as ''26W''. The storm then made landfall over Vietnam and dissipated. In November, Typhon Nyatoh being the only storm of the month formed southeast of

and unexpectedly rapidly intensified to a Category 4 super typhoon due to jet interaction. However, it was short lived and the JMA declared the storm became a remnant low. On December,

formed very late during the season and struck

and caused severe destruction in the

. Rai also became a Category 5 super typhoon twice near the Philippines and in the

. Rai became the first Category 5 super typhoon since Nock-ten to form in the month on December. It was also the first Category 5 super typhoon recorded in the South China Sea other being

1954 Events January * January 1 – The Soviet Union ceases to demand war reparations from West Germany. * January 3 – The Italian broadcaster RAI officially begins transmitting. * January 7 – Georgetown-IBM experiment: The fir ...

and Rammasun in

2014 File:2014 Events Collage.png, From top left, clockwise: Stocking up supplies and personal protective equipment (PPE) for the Western African Ebola virus epidemic; Citizens examining the ruins after the Chibok schoolgirls kidnapping; Bundles of wat ...

. Additionally, a tropical depression classified as ''29W'' formed near the equator in the

. The depression then made landfall on

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

flooding A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrolog ...

some states within the country.

North Indian Ocean

On April 2, a tropical depression formed in the north

Andaman Sea The Andaman Sea (historically also known as the Burma Sea) is a marginal sea of the northeastern Indian Ocean bounded by the coastlines of Myanmar and Thailand along the Gulf of Martaban and west side of the Malay Peninsula, and separated from ...

near the

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

coast. It remained short-lived, however, dissipating the next day. It was the fourth system to form within the first fifteen days of April since the satellite era began in 1960. Formation during this time is considered rare since the first storm of a season usually forms in mid-April or May. A month later, on May 14, another tropical depression formed in the

Arabian Sea The Arabian Sea ( ar, اَلْبَحرْ ٱلْعَرَبِيُّ, Al-Bahr al-ˁArabī) is a region of the northern Indian Ocean bounded on the north by Pakistan, Iran and the Gulf of Oman, on the west by the Gulf of Aden, Guardafui Channel ...

. Later that day, it intensified into a cyclonic storm, being assigned the name '' Tauktae'' by the IMD. It intensified to an extremely severe cyclonic storm and made landfall on

Gujarat Gujarat (, ) is a state along the western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the fifth-largest Indian state by area, covering some ; and the ninth ...

. Ten days later another tropical depression formed in the Bay of Bengal in May 23, before strengthening into a cyclonic storm and receiving the name '' Yaas''. It rapidly intensified further to a very severe cyclonic storm and made landfall in

Odisha Odisha (English: , ), formerly Orissa ( the official name until 2011), is an Indian state located in Eastern India. It is the 8th largest state by area, and the 11th largest by population. The state has the third largest population of ...

. Both of these storms caused considerable loss of lives and damage. On September 12, after a long period of inactivity, BOB 03 formed. BOB 03 intensified to a deep depression, before making landfall in India. It dissipated on September 15. On September 24, a tropical depression formed in the Bay of Bengal. It was designated BOB 04 by the IMD. In the next two days, it intensified into a cyclonic storm and was named '' Gulab''. It made landfall in India. Later, the remnants of Gulab later re-intensified into '' Shaheen'' in the

. Shaheen entered the

Gulf of Oman The Gulf of Oman or Sea of Oman ( ar, خليج عمان ''khalīj ʿumān''; fa, دریای عمان ''daryâ-ye omân''), also known as Gulf of Makran or Sea of Makran ( ar, خلیج مکران ''khalīj makrān''; fa, دریای مکرا� ...

, where it became a Severe Cyclonic Storm. However, it struggled to intensify any further, due to lack of convection. Shaheen eventually made landfall near

Al Suwaiq Al Suwaiq ( ar, السويق) is a coastal wilayah (province) in the region of Al Bāţinah, in northeastern Oman. It is located at around . The name of the town refers in Arabic Language to Market, it is named by this name because it located in ...

in the governorate of Al Batinah North in

Oman Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is situated on the southeastern coast of the Arabian Peninsula, and spans the mouth of t ...

. Shaheen became the first cyclone to hit the country since

Cyclone Hikaa Very Severe Cyclonic Storm Hikaa was a tropical cyclone that struck eastern Oman in September 2019. The third named storm of the 2019 North Indian Ocean cyclone season, Hikaa formed on September 22 west of India in the Arabian Sea. The storm ...

in 2019. It was also the first cyclone to enter the

since

Cyclone Gonu Super Cyclonic Storm Gonu was an extremely powerful tropical cyclone that became the strongest cyclone on record in the Arabian Sea. The second named tropical cyclone of the 2007 North Indian Ocean cyclone season, Gonu developed from a persis ...

in 2007. On November 7, ARB 03 formed. It stayed out to sea and dissipated two days later. On November 10, a tropical depression formed. It was designated BOB 05 by the IMD. It was short lived, dissipating two days later. However, this depression caused severe flooding in

Tamil Nadu Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...

and

Andhra Pradesh Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to the ...

South-West Indian Ocean

January - June

From the 2020 season, two systems crossed into the 2021 season after having formed during the previous year. The systems were Danilo, which peaked as a high-end severe tropical storm and briefly passed near the

Mascarene Islands The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of the islands belonging to the Republic of Mauritius as well as the French department of Réunion. Thei ...

, and a tropical depression designated as 05 which entered the South-West Indian Ocean basin on December 28, causing a

Fujiwhara effect The Fujiwhara effect, sometimes referred to as the Fujiwara effect, Fujiw(h)ara interaction or binary interaction, is a phenomenon that occurs when two nearby cyclonic vortices move around each other and close the distance between the circulations ...

with Danilo before dissipating on January 3. In the 2021 season, a tropical disturbance formed in the South-West Indian Ocean, which intensified into a tropical storm, being given the name Eloise. After making landfall on Madagascar, it rapidly intensified into a tropical cyclone in the

Mozambique Channel The Mozambique Channel (french: Canal du Mozambique, mg, Lakandranon'i Mozambika, pt, Canal de Moçambique) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long ...

before making a second landfall on Beira. Its remnants affected

Zimbabwe Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozam ...

Eswatini Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its no ...

, and

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

. Joshua entered the basin from the Australian Region on the same day. On January 27, ''10U'' from the Australian region entered the basin and was designated as ''Tropical Depression 09'' before quickly dissipating thereafter. On February 4, a tropical depression formed and intensified into a tropical cyclone named ''Faraji'' which further intensified into the season's first intense and very intense tropical cyclone. On February 10, a subtropical depression intensified into a tropical cyclone, being named Guambe and peaking as a Category 2 equivalent tropical cyclone. On March 1, Marian briefly entered the basin before exiting the basin the next day. On March 2, two tropical disturbances formed, and both intensified, being given the names Habana and Iman respectively. While Iman peaked as a moderate tropical storm and then dissipated, Habana continued to intensify and became the season's second intense tropical cyclone. After a short period of inactivity, a tropical depression designated as ''15'' formed on March 25, though it remained weak and dissipated by March 28. On April 10, a low-pressure area formed, but due to unfavorable conditions, development was limited. By April 19, the low-pressure area intensified into a tropical depression. The tropical depression intensified shortly into a moderate tropical storm earning the name ''Jobo''. It then rapidly intensified into a tropical cyclone before weakening due to an increase in wind shear, dissipating on April 24. Its remnant made landfall on

Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...

, causing little damages in the area.

July - December

The South-West Indian Ocean featured no storms forming during the year which became the first since the

1997–98 South-West Indian Ocean cyclone season The 1997–98 South-West Indian Ocean cyclone season was fairly quiet and had the latest start in 30 years. The first tropical disturbance originated on January 16, although the first named storm, Anacelle, was not upgraded until Februar ...

Australian region

January - June

At the beginning of the 2021 season, a new tropical low formed in the Australian region near the

Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an states and territories of Australia, Australian territory in the central and central northern regions of Australia. The Northern Territory ...

of Australia, which further intensified into the first named cyclone of 2021, being given the name Imogen before making landfall on

Far North Queensland Far North Queensland (FNQ) is the northernmost part of the Australian state of Queensland. Its largest city is Cairns and it is dominated geographically by Cape York Peninsula, which stretches north to the Torres Strait, and west to the Gulf C ...

. Another tropical low formed northeast of the

Cocos Islands ) , anthem = "''Advance Australia Fair''" , song_type = , song = , image_map = Australia on the globe (Cocos (Keeling) Islands special) (Southeast Asia centered).svg , map_alt = Location of the Cocos (Keeling) Islands , map_caption = ...

which lasted for five days and dissipated on January 10. Joshua formed on January 13 and crossed into the South-West Indian Ocean basin four days later. A new tropical low formed on January 16 near

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

, which intensified into a cyclone named Kimi on the next day. Four additional tropical lows formed after Kimi, of which one managed to intensify into Cyclone Lucas before crossing into the South Pacific basin on February 3, while the other three had minor effects on land. In the month of February, four tropical disturbances formed out of which two were named, being given the names

Marian Marian may refer to: People * Mari people, a Finno-Ugric ethnic group in Russia * Marian (given name), a list of people with the given name * Marian (surname), a list of people so named Places * Marian, Iran (disambiguation) * Marian, Queenslan ...

and

Niran Na'aran ( he, נערן), formerly known as Niran () is an Israeli settlement organized as a kibbutz in the West Bank. Located in Area C of the Jordan Valley near Jericho,

respectively. Marian formed on February 23 and rapidly intensified into a Category 3 severe tropical cyclone on the Australian scale. It briefly entered the MFR's area of responsibility between March 1 and March 2 before re-entering into the basin on March 3, where it peaked as a Category 4 severe tropical cyclone on the Australian Scale. Niran formed on February 27 and also rapidly intensified, peaking as a Category 5 severe tropical cyclone. Although it remained offshore, its slow-motion caused damage to banana crops in Queensland. Niran exited the basin on March 5. In March, three tropical lows developed, though they did not intensify into tropical cyclones. In the month of April, four systems have formed, with two being named '' Seroja'' by TCWC Jakarta and '' Odette'' by BoM. The two systems engaged in a Fujiwhara interaction, with Seroja eventually absorbing Odette. The former would go on to intensify and strike

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

as a Category 3 severe tropical cyclone. On April 9, a tropical low formed off the east coast of Australia and quickly exited on the same day. On April 23, a late-season tropical low formed to the east of the

Arafura Sea The Arafura Sea (or Arafuru Sea) lies west of the Pacific Ocean, overlying the continental shelf between Australia and Western New Guinea (also called Papua), which is the Indonesian part of the Island of New Guinea. Geography The Arafura Sea is ...

. On May 31 a very rare tropical low formed near the

and dissipated without any significant intensification on 4 June.

July - December

2021-2022 Australian region cyclone season summary

On November 10, a tropical low formed near the island of

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

. However the storm dissipated a few days later. On November 17, another low formed which then formed into

Paddy Paddy may refer to: People *Paddy (given name), a list of people with the given name or nickname *An List of ethnic slurs#P, ethnic slur for an Irishman Birds *Paddy (pigeon), a Second World War carrier pigeon *Snowy sheathbill or paddy, a bird ...

. Following Paddy, another depression formed near the

before exiting the basin. On November 29, Teratai formed south of

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

Island however the cyclone struggled to develop due to the lack of sufficient outflow.

became a named storm on December 12, and intensified to category 1-equivalent strength before crossing into the South Pacific basin on December 13.

South Pacific Ocean

2020-2021 South Pacific cyclone season summary

January - June

In January 2021, four tropical disturbances formed in the South Pacific, all four of which intensified into tropical depressions, with Ana and Bina intensifying into tropical cyclones. On February 1, Lucas entered from the Australian region and affected

New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...

and

Vanuatu Vanuatu ( or ; ), officially the Republic of Vanuatu (french: link=no, République de Vanuatu; bi, Ripablik blong Vanuatu), is an island country located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is east of no ...

. A tropical depression designated as ''09F'' formed on February 7, before it was upgraded into a tropical storm by the JTWC. However, it accelerated southwards and became extratropical on February 11. Another tropical depression designated as ''10F'' formed on February 22, before dissipating on February 24. Niran entered the basin on March 5 and caused extensive damage in New Caledonia before accelerating southeast as it transitioned into an extratropical cyclone. On March 5, a short-lived tropical depression designated as ''11F'' existed from March 5 to March 6. On April 9, a tropical depression designated as ''13F'' entered the basin, however, it dissipated on April 11 without intensifying into a tropical cyclone.

July - December

2021-2022 South Pacific cyclone season summary

On December 13, the basin's first storm started off with Ruby, which entered the basin from the Australian basin as a Category 2 tropical cyclone on the Australian scale. Ruby eventually made landfall over

South Atlantic Ocean

On February 6, a weak system unofficially designated as ''01Q'' was briefly tracked by the

NOAA The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...

. The system formed and dissipated on the same day without being monitored by the Brazilian Navy. Another system formed on February 14 near

Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...

, being designated as a subtropical depression by the Brazilian Navy. On April 19, a subtropical depression formed, although its precursor formed off the coast of

Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the state of the same name, Brazil's third-most populous state, and the second-most populous city in Brazil, after São Paulo. Listed by the GaWC as a b ...

. On April 20 the subtropical depression gained strength and was classified as a subtropical storm by the Brazilian Navy, being assigned the name ''Potira''. It brought gale-force winds to Copacabana. On June 28, an extratropical cyclone in

Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...

transitioned into a subtropical depression on the evening of the same day, being given the designation Invest 1N by the NOAA. A day later, the storm strengthened into a subtropical storm. On June 29, as the subtropical storm entered Brazilian maritime territory, the Brazilian Navy named it ''Raoni''. On December 10, a subtropical cyclone evolved into a subtropical depression and on the morning of the same day it turned into a subtropical storm, called ''Ubá'' by the Brazilian Navy.

Systems

January

January was unusually above-average, with fourteen tropical cyclones forming and seven being named. Before that, two systems crossed into the 2021 season after having formed during the previous year. Danilo was one of the systems that crossed over, peaking as a severe tropical storm and briefly passing near the Mascarene Islands. A tropical depression designated as 05 entered the South-West Indian Ocean basin on December 28 and caused a brief interaction with Danilo before dissipating on January 3. In the Australian region, Cyclone Imogen formed on January 1 and affected Far North Queensland, bringing minimal damage to the area. Following Imogen, Cyclone Joshua, Cyclone Kimi, and Cyclone Lucas developed, with Joshua later entering the South-West Indian Ocean on January 17. Kimi threatened to strike the coast of Queensland, but weakened suddenly due to unexpected wind shear, remaining just offshore instead. Lucas formed on January 25 and entered the South Pacific basin on February 1. Additionally, four tropical lows formed in the basin, out of which one system entered the South-West Indian Ocean basin. In the South-West Indian Ocean, Cyclone Eloise formed and first made landfall on

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

as a severe tropical storm. It rapidly intensified over the Mozambique Channel and became the strongest storm of the month shortly before making a damaging landfall on

Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...

, with its remnants entering Zimbabwe, Eswatini, and South Africa. In the South Pacific, two tropical depressions formed, which were later assigned the names Ana and Bina, both of them affected

Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists ...

and Vanuatu. In the West Pacific, a tropical depression formed, which became the first Northern Hemisphere tropical cyclone of 2021 and also marked the beginning of the

2021 Pacific typhoon season The 2021 Pacific typhoon season was the second consecutive to have below-average tropical cyclone activity, with twenty-two named storms, and was the least active since 2011. Nine became typhoons, and five of those intensified into super typho ...

February

February was slightly above-average, featuring eleven systems, of which five were named. One system was unofficial and another was subtropical. In the Australian region, two tropical lows formed on February 6 and 18 respectively. Cyclone Marian formed on February 23 and rapidly intensified, reaching Category 3-equivalent strength on February 28 with Niran following on February 27 and reaching Category 5 strength on both the Australian scale and the

Saffir–Simpson scale The Saffir–Simpson hurricane wind scale (SSHWS) classifies hurricanes—which in the Western Hemisphere are tropical cyclones that exceed the intensities of tropical depressions and tropical storms—into five categories distinguished by ...

, bringing impacts to Queensland and New Caledonia. In the South Pacific, a tropical depression formed north of Fiji and strengthened, though it accelerated southwards and became extratropical on February 11. Another tropical disturbance also briefly existed from February 22 to 24. In the South-West Indian Ocean, Cyclone Faraji formed and rapidly intensified, being classified as a very intense tropical cyclone before becoming the strongest storm of the month as it strengthened into the first Category 5-equivalent tropical cyclone in the basin since

Cyclone Fantala Very Intense Tropical Cyclone Fantala was the List of the most intense tropical cyclones, most intense tropical cyclone recorded in the South-West Indian Ocean tropical cyclone, South-West Indian Ocean in terms of sustained winds. Part of the 201 ...

in 2016. It also became the first very intense tropical cyclone recorded in the month of February. It then began to gradually weaken, dissipating on February 13. Another system formed on February 10 and made landfall on Mozambique before re-emerging back over water, and was given the name '' Guambe'' before reaching tropical cyclone status. In the Western Pacific, Tropical Storm Dujuan formed and became the basin's first named storm, bringing minor damage to the Philippines. In the South Atlantic, one system was unofficially monitored by NOAA, being given the unofficial designation of ''01Q''. However, the Brazilian Navy did not monitor the system. Another system formed near Rio Grande do Sul and was designated as a

subtropical depression A subtropical cyclone is a weather system that has some characteristics of both tropical and an extratropical cyclone. As early as the 1950s, meteorologists were uncertain whether they should be characterized as tropical or extratropical cyclon ...

by the Brazilian Navy.

March

March was slightly below-average, featuring nine tropical cyclones with only two being named. In the Australian region, five tropical lows formed on March 10, 18, 21, and 29 respectively. In the South Pacific, a tropical depression formed and was designated as ''11F'', though it was short-lived, dissipating the next day. In the South-West Indian Ocean,

Habana Havana (; Spanish: ''La Habana'' ) is the capital and largest city of Cuba. The heart of the La Habana Province, Havana is the country's main port and commercial center.

formed and explosively intensified to an intense tropical cyclone, persisting for two weeks and reaching three individual peak intensities. Forming along with Habana was Tropical Storm Iman, which made landfall on Madagascar as a tropical depression and bringing heavy rainfall to

Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island ...

, dissipating a few days later. In the West Pacific, a tropical depression formed on March 14, however it was short-lived, dissipating the same day.

April

April was above-average, featuring nine systems, of which five were named. In the Australian region, Cyclone Seroja formed near

East Timor East Timor (), also known as Timor-Leste (), officially the Democratic Republic of Timor-Leste, is an island country in Southeast Asia. It comprises the eastern half of the island of Timor, the exclave of Oecusse on the island's north-weste ...

and

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

. Its precursor caused catastrophic damage and deadly landslides in the

West Nusa Tenggara West Nusa Tenggara ( id, Nusa Tenggara Barat – NTB) is a province of Indonesia. It comprises the western portion of the Lesser Sunda Islands, with the exception of Bali which is its own province. Mataram, on Lombok, is the capital and largest ...

and

East Nusa Tenggara East Nusa Tenggara ( id, Nusa Tenggara Timur – NTT; pt, Sonda Oriental) is the southernmost province of Indonesia. It comprises the eastern portion of the Lesser Sunda Islands, facing the Indian Ocean in the south and the Flores Sea in the nor ...

provinces of Indonesia and East Timor, causing 229 fatalities before strengthening to a Category 3 severe tropical cyclone and making a rare landfall on Midwestern Australia, becoming the first since Elaine in 1999. Odette also formed in the region near the Cocos Islands before undergoing a

Fujiwhara interaction The Fujiwhara effect, sometimes referred to as the Fujiwara effect, Fujiw(h)ara interaction or binary interaction, is a phenomenon that occurs when two nearby cyclonic vortices move around each other and close the distance between the circulations ...

with Seroja quickly after its formation and later being absorbed by it. Additionally, two tropical lows formed on April 7 and April 9, of which one entered the South Pacific basin. In the North Indian Ocean, a short-lived tropical depression formed off the Myanmar coast in the north Andaman Sea, however it dissipated the next day. In the Australian region, a tropical low formed before later moving into the South Pacific basin, being designated as ''13F''; it was short-lived and dissipated on April 11. In the South-West Indian Ocean, Cyclone Jobo developed near the

Seychelles Seychelles (, ; ), officially the Republic of Seychelles (french: link=no, République des Seychelles; Creole: ''La Repiblik Sesel''), is an archipelagic state consisting of 115 islands in the Indian Ocean. Its capital and largest city, V ...

, undergoing a brief period of rapid intensification before dissipating near Tanzania on April 24. In the West Pacific, Typhoon Surigae formed south of Woleai and rapidly intensified into a Category 5-equivalent typhoon, becoming the strongest typhoon recorded in the month of April as it passed near the Philippines. In the South Atlantic, Subtropical Storm Potira formed just off the coast of Rio de Janeiro, causing gale-force winds in Copacabana.

May

May was well above average, even though tropical cyclogenesis started in mid-May. It featured the formation of nine systems, with six being named. In the Australian region near the Cocos Islands, an off-season tropical low formed before dissipating on June 3. In the East Pacific, Tropical Storm Andres formed and peaked as a tropical storm, becoming the earliest named storm in the basin in the East Pacific east of 140°W, breaking the previous record of Adrian in

2017 File:2017 Events Collage V2.png, From top left, clockwise: The War Against ISIS at the Battle of Mosul (2016-2017); aftermath of the Manchester Arena bombing; The Solar eclipse of August 21, 2017 ("Great American Eclipse"); North Korea tests a ser ...

by twelve hours. Tropical Storm Blanca also formed and peaked as a tropical storm near the end of the month. In the North Atlantic, Tropical Storm Ana formed northeast of

as a subtropical storm before later transitioning into a tropical storm, marking the seventh consecutive Atlantic hurricane season to feature a storm formed before the official start date. In the North Indian Ocean, Cyclone Tauktae formed off the coast of

Kerala Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South ...

and

Lakshadweep Lakshadweep (), also known as Laccadives (), is a union territory of India. It is an archipelago of 36 islands in the Arabian sea, located off the Malabar Coast. The name ''Lakshadweep'' means "one lakh islands" in Sanskrit, though the Lac ...

and rapidly intensified to Category 4 equivalent storm, becoming the strongest storm of the month. It made a devastating landfall in Gujarat. Ten days later, Cyclone Yaas formed in the

Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line between ...

and intensified into a Category 1 equivalent strength, eventually making landfall in northwestern Odisha on May 26. Both storms brought considerable damage and loss of lives. In the West Pacific, a tropical depression formed on May 12 before making landfall on the Philippines and dissipating shortly thereafter. Tropical Storm Choi-wan and a tropical depression also formed later in the month, with Choi-wan peaking as a tropical storm. Choi-wan made several landfalls in the Philippines, causing severe damage. It later weakened into a tropical depression before transitioning into an extratropical cyclone.

June

June was a slightly above average-month, featuring the formation of ten tropical cyclones with nine being named. In the East Pacific, Tropical Storm Carlos,

Tropical Storm Dolores The name Dolores (or Delores, a misspelling) has been used for twelve tropical cyclones in the Eastern Pacific Ocean and for one in the Western Pacific. In the Eastern Pacific: * Hurricane Dolores (1966) – Category 1 hurricane that stayed out at ...

and Hurricane Enrique formed, with Dolores making landfall near the border between

Michoacán Michoacán, formally Michoacán de Ocampo (; Purépecha: ), officially the Free and Sovereign State of Michoacán de Ocampo ( es, Estado Libre y Soberano de Michoacán de Ocampo), is one of the 32 states which comprise the Federal Entities of ...

and

Colima Colima (), officially the Free and Sovereign State of Colima ( es, Estado Libre y Soberano de Colima), is one of the 31 states that make up the Political divisions of Mexico, 32 Federal Entities of Mexico. It shares its name with its capital and ...

in Mexico near hurricane strength, killing 3 people, while Enrique intensified to a hurricane in a similar location to Dolores later in the month, becoming the strongest storm of the month. In the North Atlantic,

Tropical Storm Bill The name Bill has been used for five tropical cyclones in the Atlantic Ocean. * Hurricane Bill (1997), threatened Bermuda, but passed the island without incident * Tropical Storm Bill (2003), made landfall west of New Orleans killing four and causin ...

formed off the coast of North Carolina,

formed over southeastern

and brought heavy rain and severe weather to the

Southeastern United States The Southeastern United States, also referred to as the American Southeast or simply the Southeast, is a geographical region of the United States. It is located broadly on the eastern portion of the southern United States and the southern por ...

, while Tropical Storm Danny formed off the coast of

late in the month, tying the Atlantic for the most active June. In the North Atlantic,

Hurricane Elsa Hurricane Elsa was the earliest-forming fifth named storm on record in the Atlantic Ocean, surpassing Edouard of the previous year, and was the first hurricane of the 2021 Atlantic hurricane season. It formed over the central tropical Atlantic, ...

formed, becoming the earliest fifth-named storm on record and beating the record of Tropical Storm Edouard of the previous year, bringing substantial damage to the

and eastern

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. In the West Pacific,

Tropical Storm Koguma Tropical Storm Koguma was a weak tropical cyclone that made landfall in Vietnam, causing minor damage. The fourth named storm of the 2021 Pacific typhoon season, the system was first noted as an area of persistent convection on the South China Se ...

formed near

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

and crossed

before making landfall in Vietnam. Champi formed later in the month, passing close to Guam and the

Northern Mariana Islands The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI; ch, Sankattan Siha Na Islas Mariånas; cal, Commonwealth Téél Falúw kka Efáng llól Marianas), is an unincorporated territory and commonw ...

before recurving out to sea and then intensifying into a typhoon. In the South Atlantic, Subtropical Storm Raoni formed off the coast of Uruguay, causing some impacts in

Montevideo Montevideo () is the Capital city, capital and List of cities in Uruguay, largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of . M ...

and

Punta del Este Punta del Este () is a seaside city and peninsula on the Atlantic Coast in the Maldonado Department of southeastern Uruguay. Starting as a small town, Punta del Este later became internationally known as a resort for the Latin and North American j ...

July

July was average, featuring fourteen tropical cyclones, with seven being named. In the East Pacific, Hurricane Felicia and Tropical Storm Guillermo formed in the middle half of the month, with Felicia becoming the first major hurricane of its respective Pacific hurricane season.

Hurricane Hilda Hurricane Hilda was an intense tropical cyclone that ravaged areas of the United States Gulf Coast, particularly Louisiana. In addition to its damage inland, the hurricane greatly disrupted offshore oil production, and at its time was the costlie ...

would then form at the end of the month. In the West Pacific, two tropical depressions formed and were designated as ''07W'' and ''08W'' respectively. The former received the name ''Emong'' from PAGASA. Further into the month, two typhoons named In-fa and Cempaka and Tropical Storm Nepartak formed, with In-fa making landfall in China as severe tropical storm while Cempaka made landfall in Southern China as a typhoon; both were associated with the

2021 Henan floods China's Henan Province experienced flooding between 17 and 31 July 2021 as a result of heavy rainfall. On July 20, Zhengzhou, the provincial capital, recorded of rainfall within an hour, the highest ever figure recorded since measurements bega ...

. Nepartak, on the other hand, made landfall on the Miyagi Prefecture in Japan. The storm disturbed the ongoing Summer Olympics held in the country.

August

August was fair-above average, featuring eighteen tropical cyclones, with sixteen of them being named. In the East Pacific, Tropical Storm Ignacio formed, but dissipated a few days later due to strong wind shear partially due to its proximity to Hurricane Hilda. Tropical Storm Kevin would then form a couple of days later, off the coast of Mexico with Hurricane Linda following shortly after, peaking as a low-end Category 4-equivalent hurricane. Linda was to be followed by Tropical Storm Marty and Hurricane Nora. In the West Pacific, tropical storms Lupit,

Mirinae Mirinae is a subfamily of plant bugs, insects in the family Miridae. Tribes * Herdoniini * Hyalopeplini * Mecistoscelini * Mirini * Restheniini * Scutelliferini * Stenodemini Stenodemini is a tribe of plant bugs in the family Miridae ...

Nida Nida or NIDA may refer to: People * Nida Allam (born 1993), American politician * Nida Fazli (1938–2016), Indian Hindi and Urdu poet and lyricist * Nida Eliz Üstündağ (born 1996), Turkish female swimmer * Eugene Nida (1914–2011), American l ...

and Omais formed, with Lupit making landfall in

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

and

. In the North Atlantic,

Tropical Storm Fred The name Fred has been used for a total of six tropical cyclones worldwide, three in the Atlantic Ocean, two in the Western Pacific Ocean, and one in the Australian region of the Indian Ocean. In the Atlantic: * Hurricane Fred (2009) – Category& ...

formed south of

Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated ...

and made landfall in the

, with Hurricanes

and

forming later. Grace impacted the

before making landfall on the

before rapidly intensifying in the Bay of Campeche and making landfall as a category 3 hurricane in mainland Mexico. Henri would impact the

as a tropical storm, becoming the first tropical cyclone to make landfall in

since

Hurricane Bob Hurricane Bob was one of the costliest hurricanes in New England history. The second named storm and first hurricane of the 1991 Atlantic hurricane season, Bob developed from an area of low pressure near The Bahamas on August 16. The depressio ...

in 1991. At the end of the month, Hurricanes

and

, as well as tropical storms Julian and

Kate Kate name may refer to: People and fictional characters * Kate (given name), a list of people and fictional characters with the given name or nickname * Gyula Káté (born 1982), Hungarian amateur boxer * Lauren Kate (born 1981), American autho ...

, and formed. Ida, which became the strongest storm of the month, brought impacts to Cuba before striking Louisiana on August 29, notably on the 16th anniversary of

Hurricane Katrina Hurricane Katrina was a destructive Category 5 Atlantic hurricane that caused over 1,800 fatalities and $125 billion in damage in late August 2005, especially in the city of New Orleans and the surrounding areas. It was at the time the cost ...

, tying with

Hurricane Laura Hurricane Laura was a deadly and destructive Category 4 hurricane that is tied with the 1856 Last Island hurricane and 2021's Hurricane Ida as the strongest hurricane on record to make landfall in the U.S. state of Louisiana, as measur ...

of the previous year and the

1856 Last Island Hurricane The 1856 Last Island hurricane (also known as the Great Storm of 1856) was a deadly and destructive tropical cyclone that is tied with Hurricane Laura and Hurricane Ida as the strongest hurricane on record to make landfall in the U.S. state of Lou ...

as the strongest hurricane to make landfall in the state by maximum winds.

September

September was well–above average, featuring nineteen storms, with fifteen of them being named. In the East Pacific, Hurricane Olaf being the only system in the basin, formed on the east coast of Mexico and later made landfall on the Baja California Peninsula as a Category 2 hurricane. In the West Pacific, Tropical Storms Conson and

, Typhoons Chanthu and Mindulle as well as three short-lived depressions formed, with Chanthu becoming the strongest storm of the month. Conson made a series of landfalls in the

while Chanthu affected most of

, due to the system stalling in the

. Mindulle on the other hand caused minor damage on

. In the Atlantic, (Sub)Tropical Storms

, Odette,

Peter Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a sur ...

Rose A rose is either a woody perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be ...

Teresa Teresa (also Theresa, Therese; french: Thérèse) is a feminine given name. It originates in the Iberian Peninsula in late antiquity. Its derivation is uncertain, it may be derived from Greek θερίζω (''therízō'') "to harvest or re ...

Victor The name Victor or Viktor may refer to: * Victor (name), including a list of people with the given name, mononym, or surname Arts and entertainment Film * ''Victor'' (1951 film), a French drama film * ''Victor'' (1993 film), a French shor ...

as well as Hurricanes

and Sam formed. Mindy made landfall on St. Vincent Island in Florida, while Nicholas made landfall near Sargent in

was a slow moving Category 4 hurricane which traveled across the Atlantic for two weeks. In the North Indian Ocean, Cyclonic Storm Gulab, Shaheen (a regeneration of Gulab), and BOB 03 formed. Gulab made landfall in India, causing minor damage. Soon, the remnants of Gulab regenerated into Shaheen in the

west of India. Shaheen entered the

and eventually made landfall near

in the governorate of Al Batinah North in

. Shaheen became the first cyclone to hit the country since

in 2019 and was the first cyclone to hit the area since 1890. It was also the first cyclone to enter the

since

in 2007.

October

October was unusually below-average, featuring only ten storms, with eight of them being named. The month also includes an unofficial cyclone named

which formed in the

Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...

. In the East Pacific, two hurricanes named

and

formed with both of them impacting

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

formed on the southern coast of

Zihuatanejo Zihuatanejo (), or Ixtapa-Zihuatanejo, is the fourth-largest city in the Mexican state of Guerrero. It was known by 18th century English mariners as Chequetan or Seguataneo. Politically the city belongs to the municipalities of Mexico, municipali ...

where it made landfall in

Sinaloa Sinaloa (), officially the Estado Libre y Soberano de Sinaloa ( en, Free and Sovereign State of Sinaloa), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. It is d ...

and then rapidly weakened to a tropical depression. Almost a week after Pamela dissipated,

formed south of Mexico and made landfall on the country as a Category 2 hurricane. In the West Pacific, Typhoon Malou, Tropical storms

, Kompasu, Namtheun, and along with two tropical depressions formed. One of the depressions was named

Nando Nando (from "News and Observer") was an American internet news service and Internet service provider (ISP), founded in 1993 by the publishers of ''The News & Observer'' newspaper in Raleigh, North Carolina. Initially it relied on access via bullet ...

by the PAGASA. Nando formed east of another developing tropical depression, where it then merged with the depression and contributed to the formation of Kompasu.

struck

Southern China South China () is a geographical and cultural region that covers the southernmost part of China. Its precise meaning varies with context. A notable feature of South China in comparison to the rest of China is that most of its citizens are not n ...

and

. Kompasu also affected the same area where Lionrock struck a week prior, causing severe loss of life and damage. The Atlantic was unusually quiet, only featuring a tropical storm named

. Wanda developed from a strong late October nor'easter that had previously affected much of the

. The naming of Wanda made the

2021 Atlantic hurricane season The 2021 Atlantic hurricane season was the third-most active Atlantic hurricane season on record, producing 21 named storms and the second season in a row (third overall) in which the designated 21-name list of storm names was exhausted. ...

the second season in a row after the previous year to run out of names on the standard naming list.

November

November was an average month in terms of activity, featuring eleven storms, of which six were named. The month also includes another unofficial cyclone named

which formed in the

near

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. In the East Pacific, Tropical Storms

Terry Terry is a unisex given name, derived from French Thierry and Theodoric. It can also be used as a diminutive nickname for the names Teresa or Theresa (feminine) or Terence (given name), Terence or Terrier (masculine). People Male * Terry Albrit ...

and Sandra formed, with both of the storms being named simultaneously on November 7. The West Pacific only featured a super typhoon named

Nyatoh Nyatoh is a trade name for wood of a number of hardwood species of the genera ''Palaquium'' and '' Payena'' growing in rainforest environments in southeast Asia, especially in Indonesia and the Philippines. Nyatoh wood is reddish and most species ...

which developed near

, ending the record-long streak without a major tropical cyclone worldwide since October 3. Nyatoh became the strongest cyclone of November, later crossing into December and dissipating. In the North Indian Ocean, three depressions classified as ARB 03, BOB 05 and BOB 06 formed. BOB 05 caused severe flooding in Southern India and

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

which killed more than 40 people, with BOB 06 causing additional damages over the same places; the worst damages occurred in the

Rayalaseema Rayalaseema () is a geographic region in the Indian state of Andhra Pradesh. It comprises eight south western districts of the State namely, Kurnool, Nandyal, Anantapur, Sri Sathya Sai, YSR, Annamayya, Tirupati and Chittoor districts ...

region of

. Additionally, a tropical low formed in the Southern Hemisphere which began the 2021–22 Australian region cyclone season. Later, another low formed which was then named ''Paddy''. Following Paddy, a few more depressions formed but dissipated a few days later. At the end of the month, Tropical Cyclone Teratai formed south of

but struggled to develop due to the lack of outflow. It then re-strengthened back into a tropical storm before weakening again and dissipating.

December

December was slightly inactive, featuring nine storms, with five of them being named. The month started off with the formation of Cyclone Jawad which formed in the North Indian Ocean. However, Jawad rapidly weakened due to wind shear shortly after being named, and degenerated into a low-pressure area before it could make landfall over

West Bengal West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the fourt ...

. The Western Pacific featured a tropical depression classified as ''29W'' and a deadly and destructive typhoon,

. Rai formed east of

before rapidly intensifying into a Category 5 super typhoon. It then made multiple landfalls on the

causing serious damage. Rai then entered the

, re-strengthening into a Category 5 super typhoon east of

before dissipating near

. Rai became the first Category 5 super typhoon since Nock-ten to form in the month on December. It was also the third Category 5 super typhoon recorded in the South China Sea, behind

and Rammasun in

. On the other hand, ''29W'' formed near the equator before making landfall on

Peninsular Malaysia Peninsular Malaysia ( ms, Semenanjung Malaysia; Jawi: سمننجڠ مليسيا), or the States of Malaya ( ms, Negeri-negeri Tanah Melayu; Jawi: نڬري-نڬري تانه ملايو), also known as West Malaysia or the Malaysian Peninsula, ...

some states within

. The Southern Hemisphere was inactive, only featuring three tropical lows and two cyclones named

and

Seth Seth,; el, Σήθ ''Sḗth''; ; "placed", "appointed") in Judaism, Christianity, Islam, Mandaeism, and Sethianism, was the third son of Adam and Eve and brother of Cain and Abel, their only other child mentioned by name in the Hebrew Bible. A ...

. Ruby intensified into a Category 2 tropical cyclone on the Australian scale and entered the South Pacific basin, making it the first storm in the basin. Ruby then made landfall on the French overseas island of

, on the other hand, first originated in the

. It then wandered around the northern regions of Australia before being named in the

Solomon Sea The Solomon Sea is a sea located within the Pacific Ocean. It lies between Papua New Guinea and Solomon Islands. Many major battles were fought there during World War II. Extent The International Hydrographic Organization defines the limits of ...

. The Southern Atlantic featured its third named storm of the year,

Subtropical Storm Ubá Subtropical Storm Ubá was the fourth tropical or subtropical cyclone to form in the South Atlantic Ocean in 2021. Ubá originated from an area of low pressure that formed off the coast of Rio de Janeiro and evolved into a subtropical cyclone on ...

Global effects

There are a total of nine

, seven are seasonal and two are non-seasonal, thus all nine basins are active. In this table, data from all these basins are added.

Notes

² Only systems that formed either on or after January 1, 2021 are counted in the seasonal totals.
³ Only systems that formed either before or on December 31, 2021 are counted in the seasonal totals.
⁴ The wind speeds for this tropical cyclone/basin are based on the IMD Scale which uses 3-minute sustained winds.
⁵ The wind speeds for this tropical cyclone/basin are based on the Saffir Simpson Scale which uses 1-minute sustained winds.
⁶The wind speeds for this tropical cyclone are based on

which uses wind gusts.

References

External links

{{Tropical cyclone season, 2021 Tropical cyclones by year 2021 natural disasters

Global atmospheric and hydrological conditions

Summary

North Atlantic Ocean

Eastern & Central Pacific Oceans

Western Pacific Ocean

North Indian Ocean

South-West Indian Ocean

January - June

July - December

Australian region

January - June

July - December

South Pacific Ocean

January - June

July - December

South Atlantic Ocean

Systems

January

February

March

April

May

June

July

August

September

October

November

December

Global effects

See also

Notes

References

External links