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Tropical cyclones in 2018

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Tropical cyclones in 2018
Year summary map
Year boundaries
First system07U
FormedJanuary 1, 2018
Last systemPenny
DissipatedJanuary 9, 2019
Strongest system
NameKong-rey & Yutu
Lowest pressure900 mbar (hPa); 26.58 inHg
Longest lasting system
NameIris & Leslie
Duration21 days
Year statistics
Total systems145
Named systems101
Total fatalities1,383 total
Total damage> $86.65 billion (2018 USD)
Related articles
Other years
2016, 2017, 2018, 2019, 2020
Hurricanes Walaka and Sergio, Tropical Depression Rosa, Tropical Storm Leslie and Typhoon Kong-rey on October 2, 2018
Taken by various of satellites throughout 2018, these are the 31 tropical cyclones that reached at least Category 3 on the Saffir-Simpson scale during that year, from Berguitta in January to Cilida in December (though Hola and Sergio are out of order). Among them, Kong-rey (second image in the fifth row) and Yutu (first image in the sixth row) were the most intense with a minimum central pressure of 900 hPa.

During 2018, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, a total of 151 tropical cyclones had formed this year to date. 102 tropical cyclones were named by either a Regional Specialized Meteorological Center (RSMC) or a Tropical Cyclone Warning Center (TCWC).

With 151 tropical cyclones, 2018 was one of the most active years on record, also was regarded as the second-most intense tropical cyclone years on record, featuring eleven Category 5 tropical cyclones, according to the Saffir–Simpson Hurricane Wind Scale (SSHWS), only behind 1997. The most active basin in the year was the Western Pacific, which documented 28 named systems. The Eastern Pacific also saw an incredibly above-average year with 23 named systems, reaching the highest Accumulated Cyclone Energy (ACE) on record in the basin. Activity in the Atlantic Basin was unusually above-average with 15 tropical storms developing, despite the El Niño, which would usually suppress Atlantic activity. The North Indian Ocean was also above-average, documented seven named storms, making it the second-most active season in the basin's history since reliable records began. Activity across the Southern Hemisphere's three basins—South-West Indian, Australian, and South Pacific—was spread evenly, with each region recording seven named storms apiece. The accumulated cyclone energy (ACE) index for the 2018 (seven basins combined), as calculated by Colorado State University (CSU) was 1108.4 units, the second-highest since 1997.

The strongest tropical cyclones were Typhoon Kong-rey and Typhoon Yutu with a minimum pressure of 900 mbar/hPa (26.58 inHg), while the costliest tropical cyclone of the year was Hurricane Michael in the Atlantic which struck Florida in October causing US$25.1 billion in damage. The deadliest tropical cyclone of the year was Tropical Storm Son-Tinh in the West Pacific which killed 170 people in Vietnam and Laos.

Global atmospheric and hydrological conditions

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In the Eastern Pacific Ocean, there was an active El Niño. This was one of the primary causes for the Eastern Pacific's record activity in 2018.

In the North Atlantic Ocean, atmospheric and hydrological conditions were generally unfavorable for tropical cyclogenesis. In the tropical Atlantic, sea surface temperatures were cooler than average, characteristic of a negative phase of the Atlantic multidecadal oscillation (AMO).[1] Additionally, high quantities of Saharan dust along with stronger than average upper-level wind shear over the tropical Atlantic created an unfavorable atmospheric environment.

Summary

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Tropical Storm Pabuk (2019)Tropical Depression UsmanCyclone PhethaiCyclone OwenTropical Storm Toraji (2018)Tropical Storm Usagi (2018)Cyclone GajaTyphoon YutuHurricane WillaTropical Storm Vicente (2018)Cyclone TitliHurricane MichaelCyclone LubanHurricane WalakaHurricane Sergio (2018)Typhoon Kong-rey (2018)Cyclone ZorbasHurricane Rosa (2018)Hurricane Leslie (2018)Tropical Storm Kirk (2018)Typhoon TramiTropical Depression Nineteen-E (2018)Tropical Storm BarijatTyphoon MangkhutTropical Storm Gordon (2018)Hurricane Olivia (2018)Hurricane FlorenceTyphoon JebiTyphoon Cimaron (2018)Hurricane Lane (2018)Typhoon Soulik (2018)Tropical Storm RumbiaTropical Storm Bebinca (2018)Tropical Storm Yagi (2018)Tropical Storm Ileana (2018)Typhoon Shanshan (2018)Hurricane Hector (2018)Typhoon JongdariTropical Depression JosieTropical Storm AmpilTropical Storm Son-Tinh (2018)Hurricane Chris (2018)Hurricane Beryl (2018)Typhoon Maria (2018)Typhoon Prapiroon (2018)Tropical Storm Carlotta (2018)Hurricane Bud (2018)Tropical Storm Maliksi (2018)Tropical Storm Ewiniar (2018)Tropical Storm Alberto (2018)Cyclone MekunuCyclone SagarCyclone FakirTyphoon Jelawat (2018)Cyclone NoraCyclone MarcusTropical Storm EliakimCyclone HolaCyclone DumazileCyclone KelvinTropical Storm Sanba (2018)Cyclone GitaCyclone BerguittaTropical Storm Bolaven (2018)Cyclone Avatropical cyclone basins

North Atlantic Ocean

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2018 Atlantic Ocean hurricane season summary map
Main article: 2018 Atlantic hurricane season

The 2018 Atlantic hurricane season was the third in a consecutive series of above-average and damaging Atlantic hurricane seasons, featuring fifteen named storms, eight hurricanes, and two major hurricanes,[nb 1] which caused a total of over $50 billion (2018 USD) in damages and at least 172 deaths.

The season began with the formation of Tropical Storm Alberto on May 25, marking the fourth consecutive year that activity began early.[3] However, no storms developed in the month of June. July saw the formation of Beryl and Chris, both of which intensified into hurricanes. August also featured two named storms, Debby and Ernesto, though neither strengthened further than tropical storm status. On August 31, the depression that would later become Hurricane Florence developed. September featured the most activity, with Florence, Gordon, Helene, Isaac, Joyce, Tropical Depression Eleven, Kirk, and Leslie also forming or existing in the month.[4] Florence, Helene, Isaac, and Joyce existed simultaneously for a few days in September, becoming the first time since 2008 that four named storms were active at the same time.[3] The season also became the second consecutive year with three hurricanes simultaneously active.[5]

Activity continued in October, with Michael forming on October 7 and strengthening into a major hurricane over the Gulf of Mexico, before making landfall in the Florida Panhandle at peak intensity. Michael, which peaked as a Category 5 hurricane with maximum sustained winds of 160 miles per hour (260 km/h) and a minimum barometric pressure of 919 mbar (27.1 inHg), was the most intense tropical cyclone of the season and one of only four storms to make landfall in the United States mainland as a Category 5,[4][6] the others being the 1935 Labor Day hurricane, Hurricane Camille in 1969, and Hurricane Andrew in 1992.[7] After 15 consecutive days as a tropical cyclone, Leslie transitioned into a powerful extratropical cyclone on October 13 while situated approximately 120 mi (195 km) west of the Iberian Peninsula, before making landfall soon afterward. A two-week period of inactivity ensued as the season began to wind down. Oscar, forming as a subtropical storm on October 26, intensified into a hurricane the next day, making it the eighth hurricane of the season. Oscar's extratropical transition ended the season's activity on October 31.[4] No systems formed in the month of November for the first time since 2014.[3]

The seasonal activity was reflected with an accumulated cyclone energy index value of 133 units. ACE is, broadly speaking, a measure of the power of a hurricane multiplied by the length of time it existed; therefore, long-lived storms and particularly strong systems result in high levels of ACE. The measure is calculated at full advisories for cyclones at tropical storm strength—storms with winds in excess of 39 miles per hour (63 km/h).[8]

Eastern Pacific & Central Pacific Oceans

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2018 Pacific hurricane season summary map
Main article: 2018 Pacific hurricane season

The 2018 Pacific hurricane season was one of the most active Pacific hurricane seasons on record, producing the highest accumulated cyclone energy value on record in the basin. The season had the fourth-highest number of named storms – 23, tied with 1982. The season also featured eight landfalls, six of which occurred in Mexico. The season produced 26 tropical depressions formed, with 23 reaching tropical storm intensity. Thirteen of the tropical storms became hurricanes, with 10 reaching major hurricane intensity. The accumulated cyclone energy (ACE) index for the 2018 Pacific hurricane season was 316.565 units (201.9725 units for the Eastern Pacific and 114.5925 units for the Central Pacific).

The season started with the formation of Tropical Depression One-E on May 10, which was five days before the official start of hurricane season in the Eastern Pacific.[9] The month of June saw record activity, with the formation of six tropical cyclones – Aletta, Bud, Carlotta, Daniel, Emilia, and Seven-E. With five named systems, the record for most June tropical storms, which was set in 1985, was tied. Aletta and Bud both intensified into Category 4 major hurricanes, marking the first time since 2010 that two occurred in June.[10] Tropical Storm Carlotta moved along the southern coast of Mexico, causing flooding rains.[11] Activity during the month of July was below normal across the basin. Although a total of four tropical depressions formed, only two became storms – Fabio and Gilma.[12] Fabio's intensification into a tropical storm on July 1 marked the earliest date of a season's sixth named storm, beating the previous record of July 3 set in both 1984 and 1985.[13]

August was an above-average month for the Eastern Pacific, with a total of seven named storms occurring during the month – Hector, Ileana, John, Kristy, Lane, Miriam, and Norman.[14] Forming from a July tropical depression, Hurricane Hector spent more days as a major hurricane than any other storm in the basin.[15] It also had the highest accumulated cyclone energy since Hurricane John in 1994.[16] Around the same time, Tropical Storm Ileana paralleled the southwestern coast of Mexico, bringing heavy rainfall to the region.[17] Forming in mid-August, Hurricane Lane became the first Category 5 hurricane to form during the year.[14] Lane brought record rainfall to Hawaii's Big Island, becoming the wettest tropical cyclone for that state and the second wettest in the United States.[18] September saw the formation of five tropical cyclones – Olivia, Paul, Nineteen-E, Rosa, and Sergio.[19] Hurricane Olivia became the first tropical cyclone in recorded history to make landfall on the islands of Maui and Lanai on September 12.[20][21] Tropical Depression Nineteen-E formed in the Gulf of California on September 19, the first such instance in recorded history. It made landfall in Sonora on the next day, causing severe flooding.[22] Additionally, one named storm formed in the Central Pacific in September – Walaka. In October, Walaka intensified into a Category 5 hurricane in the Central Pacific – the season's second Category 5 storm.[23]

October yielded an above-average number of tropical cyclones with three named storms forming – Tara, Vicente, and Willa.[24] Sergio became the eighth system to obtain Category 4 intensity during the season, breaking the old record of seven which was set in 2015.[25] Rosa and Sergio both made landfall on the Baja California Peninsula during October, bringing gale-force winds and rain to the region before impacting western Mexico.[26][27] Willa became the season's third and last Category 5 hurricane before making landfall in Sinaloa, Mexico, in late October.[24] The cyclone brought strong winds to the area where it made landfall and dropped torrential rainfall throughout the region.[28] Tropical Storm Vicente caused severe flooding and landslides in western Mexico at the same time as Willa, compounding the latter's effects in some areas.[29] November featured the season's last system, Tropical Storm Xavier, which dissipated on November 6, marking the end of the season.[30]

Western Pacific Ocean

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2018 Pacific typhoon season summary map
Main article: 2018 Pacific typhoon season

The 2018 Pacific typhoon season was the costliest Pacific typhoon season on record, until the record was beaten by the following year. The season was above-average, producing 29 storms, 13 typhoons, and 7 super typhoons.

The season began with Tropical Depression Agaton active to the east of the Philippines. Over the course of two days, the system moved over to the South China Sea and intensified into the first named storm, Bolaven. A month later, Tropical Storm Sanba developed and affected the southern Philippines. About another month later, Tropical Depression 03W formed in the open Pacific and was named Jelawat. Jelawat intensified into the season's first typhoon on March 30, and then the season's first super typhoon. Tropical activity fired up by June, when a series of storms developed, with Tropical Storm Ewiniar making landfall over mainland China. Later that month, Typhoon Prapiroon developed and affected the Korean Peninsula, the first since 2013. Thereafter, Typhoon Maria developed and reached its peak intensity as a Category 5 super typhoon, being the first typhoon to reach that intensity since Typhoon Nock-ten in 2016. Hurricane Hector crossed the International Date Line on August 13, the first to do so since Genevieve in 2014. Systems like Tropical Storms Son-tinh, Ampil, Josie, Wukong, Jongdari, Shanshan, Yagi, Leepi, Bebinca, and Rumbia formed between late July to early August.

On August 16, Typhoon Soulik developed and headed north, until a Fujiwhara interaction with Typhoon Cimaron (which formed later than Soulik) made it head west towards the East China Sea. It later made landfall in South Korea, making it the first typhoon to make landfall in South Korea since Typhoon Chaba in 2016. Cimaron made landfall near Kyoto, Japan on August 23. When Cimaron was nearing landfall, Tropical Depression Luis formed, which made landfall in China and Taiwan. Later that month, Typhoon Jebi developed over the West Pacific and intensified into the third super typhoon of the season.

In September, Typhoon Mangkhut became the fourth super typhoon of the season and made landfall on the island of Luzon in the Philippines.[31] On the same day, Tropical Depression Neneng formed, which later became Tropical Storm Barijat and made landfall in Vietnam. By late September, Typhoon Trami (Paeng) formed, becoming the 5th super typhoon of 2018. While Typhoon Trami was in the Western Pacific, nearing Okinawa with winds of 165 kilometres per hour (103 mph), Tropical Depression 30W formed, and was named Kong-rey by the JMA after strengthening into a tropical storm. It intensified into a super typhoon on October 2, becoming the 5th Category 5 super typhoon. Later on in the month, it was followed by the sixth and final Category 5-equivalent storm of the season, Yutu.

North Indian Ocean

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2018 North Indian Ocean cyclone season summary map
Main article: 2018 North Indian Ocean cyclone season

The 2018 North Indian Ocean cyclone season was one of the most active North Indian Ocean cyclone season since 1992, with the formation of fourteen depressions and seven cyclones.

The season started with ARB 01 which was formed on March 14 making one of the rarest system formed in March since tropical cyclone development stays relatively low between January and March. It caused heavy rainfall in Maldives, Lakshadweep and Kerala. After a two-month gap, another low formed near the Horn of Africa, which later became Sagar. It became unofficially the strongest cyclone to make landfall until it was broken by Gati in 2020. It caused heavy rainfall in Somaliland and local flooding was reported in the Yemeni coast. The storm made the westernmost landfall surpassing the record of Tropical Storm One. A day after Sagar dissipation, another low pressure formed off the coast of Oman which later organised into Cyclone Mekunu. It then peaked as a Category 3 tropical cyclone according to JTWC and an Extremely Severe Cyclonic Storm according to IMD. It caused 30 people dead and heavy rainfall recorded in Salalah, Oman. After that, a low pressure quickly intensified into a deep depression and peaking as a tropical storm made landfall in Myanmar causing heavy downpour. Five monsoonal depression also formed between June and September.

Cyclogenesis continued with Cyclone Daye which made landfall in Odisha state. Heavy downpour and flood mainly in Malkangiri district and its outer bands also caused heavy rainfall in West Bengal. Following with Daye, Luban and Titli both formed in the Arabian sea and the Bay of Bengal respectively, causing heavy damages in Oman and Andhra Pradesh. Gaja on November 10, also formed and caused extensive damage in Tamil Nadu and Andaman and Nicobar Islands. The season ended with Cyclone Phethai causing agricultural damage in Andhra Pradesh and eight dead.

South-West Indian Ocean

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2017–18 South-West Indian Ocean cyclone season summary map
2018–19 South-West Indian Ocean cyclone season summary map

January–June

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Main article: 2017–18 South-West Indian Ocean cyclone season

The 2017–18 season was a below-average season that produced only 8 tropical storms, of which 6 became tropical cyclones.

The season started with Tropical Depression 01U which was designated by the BOM, entered the basin on August 8 however quickly dissipated overseas. After a three-month gap another low formed off the coast of Madagascar on December 27 which intensified into Tropical Cyclone Ava. It caused powerful winds up to 190 km/h (120 mph), caused extensive damage Toamasina and heavy downpour triggered flash flooding Tamatave and Antananarivo. After that another low formed on the Australian region and entered the basin. It was named Irving by the Bureau of Meteorology and peaked as a powerful Category 2 equivalent tropical cyclone. It dissipated off the coast of Madagascar. A day later after Ava and Irving, a low pressure formed near Mauritius and explosively intensified into a powerful Category 3 equivalent tropical cyclone named Berguitta. It passed near Mauritius and strong winds affected the textile industry, it then passed 50 km (31 mi) southeast of Réuníon and strong winds knocked down power lines and trees and left 72,000 people without power. Following with Berguitta, a tropical depression formed northeast of Madagascar and caused heavy downpour, damage is unknown however MFR gave advisories.

Five days after Berguitta's dissipation, another tropical depression formed on January 25, it then peaked as a very powerful Category 4 equivalent tropical cyclone named Cebile, however no advisories given by MFR and JTWC because it was formed overseas . A month after Cebile, a tropical depression formed near the coast of Madagascar which then named as Dumazile. It peaked as a Category 3 equivalent tropical cyclone and caused agricultural damage in Reunion Island. Week after Dumazile dissipation, another low pressure formed off the east coast of Madagascar. It caused heavy downpour which destroyed 260 homes and flash flooding caused additional 630 homes destroyed, its remnants affected Reunion. Month later, Fakir formed east of Réuníon and dumped 415 mm (16.3 in) of rainfall which triggered landslide and took two people's lives. The season ended with Flamboyan which was the first system to be named by TCWC Jarkata, it peaked as Category 1 equivalent tropical cyclone and dissipated on May 1 without making landfall.

July–December

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Main article: 2018–19 South-West Indian Ocean cyclone season

The 2018–19 season was the costliest and the most active season ever recorded since reliable records began in 1967. Additionally, it is also the deadliest cyclone season recorded in the South-West Indian Ocean, surpassing the 1891–92 season, in which the 1892 Mauritius cyclone devastated the island of Mauritius.[32]

The first tropical cyclone was an unnamed moderate tropical storm that formed northeast of Madagascar on September 13, 2018, two months before the official start of the season. Two cyclones formed in the month of November, with Intense Tropical Cyclone Alcide forming on November 5, and Severe Tropical Storm Bouchra entering the basin from the Australian region on November 9. Two tropical cyclones formed in the month of December, Cilida and Kenanga. Intense Tropical Cyclone Kenanga crossed into the basin from the Australian region, retaining its name assigned by TCWC Jakarta. Two moderate tropical storms formed in January, Desmond and Eketsang. Five more intense tropical cyclones formed during February and March: Funani, Gelena, Haleh, Idai, and Joaninha. In addition, Savannah crossed into the basin from the Australian basin as an intense tropical cyclone in March. On April 21, 2019, final two storms of the season formed at the same time, Kenneth and Lorna.

Systems

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January

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Cyclone Cebile

A total of thirteen tropical systems of all intensities were monitored during January 2018, of which seven developed further and were named by the various warning centres. As the year opened a tropical depression that was being monitored by the JMA within the Western Pacific, while a weak tropical low existed within the Australian region to the south of Sumatra. During that day, the depression entered PAGASA's self-defined area of responsibility, where it was assigned the name Agaton. In the middle of the month, Cyclone Berguitta passed very close to Mauritius and Réunion, causing millions in damages and a fatality. The only system to cause significant damage was Tropical Cyclone Fehi which caused tens of millions in damages when it brought severe flooding to New Zealand in late January.

Tropical cyclones formed in January 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
07U January 1–2 N/A 1006 None None None
Irving January 3–9 150 (90) 964 None None None
Joyce January 7–16 85 (50) 978 Western Australia None None
Berguitta January 9–20 165 (105) 940 Mauritius, Réunion $26.5 million 1
04 January 14–16 55 (35) 999 Madagascar, Mozambique $5.1 million 11
10U January 14–19 Unspecified Unspecified Christmas Island None None
11U January 20–February 1 75 (45) 985 Top End, Western Australia None None
12U January 23–24 Unspecified Unspecified None None None
Cebile January 25–February 4 185 (115) 944 None None None
05F January 26–27 Unspecified 996 New Caledonia None None
Fehi January 28–30 85 (50) 986 New Caledonia, New Zealand $67 million None [33]

February

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Cyclone Gita

The month of February was inactive, with only six tropical cyclones forming. However, Cyclone Gita became the most intense tropical cyclone to affect Tonga since records began. Gita was also one of the worst tropical cyclones to affect the island nation, causing significant agricultural and structural damages totalling in the hundreds of millions as well as a couple fatalities. Tropical Storm Sanba was a system that made landfall in the Philippines, resulting in a few million in damage and over a dozen fatalities. Cyclone Kelvin was unusual in that it maintained a healthy structure over land through a process known as the brown ocean effect, leading to tens of millions in damages.

Tropical cyclones formed in February 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
14U February 1 Unspecified Unspecified None None None
Gita February 3–19 205 (125) 927 Vanuatu, Fiji, Wallis and Futuna, Samoa, American Samoa, Niue, Tonga, New Caledonia, Queensland, New Zealand $250 million 2 [33]
08F February 3–11 Unspecified 994 Fiji None None
Sanba (Basyang) February 8–16 65 (40) 1000 Caroline Islands, Philippines $3.23 million 15 [34]
15U February 9–12 Unspecified Unspecified None None None
Kelvin February 11–20 150 (90) 955 Top End, Western Australia, South Australia $25 million None [35][33]

March

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Cyclone Marcus

March was an active month with twelve systems. Early in the month, Cyclone Hola formed near Vanuatu causing a few fatalities and later passed by New Caledonia and New Zealand where it caused minor damages. At the same time, Tropical Depression 18U made landfall in Northern Territory, causing tens of millions in damage despite being a weak system. In the middle of the month, Cyclone Eliakim made landfall in Madagascar, causing close to two dozen deaths and an unknown amount of damage. Also forming in the middle of month, Cyclone Marcus was a very intense tropical cyclone that affected the Tanimbar Islands, Top End, and Kimberley, causing tens of millions in damages. Cyclone Iris was a very long lived system that formed several days later, lasting for nearly four weeks as a tropical cyclone before dissipating in mid-April. Cyclone Josie was a system that formed in late March. It affected southern Fiji, causing millions in damages and several deaths.

Tropical cyclones formed in March 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Dumazile March 1–6 165 (105) 945 Madagascar, Réunion None None
Hola March 3–11 165 (105) 952 Vanuatu, New Caledonia, New Zealand Unknown 3 [36][37]
18U March 4–9 Unspecified 1001 Northern Territory $40 million None [33]
Eliakim March 13–20 110 (70) 980 Madagascar $3.21 million 21 [38][39]
Linda March 13–16 75 (45) 993 Solomon Islands, New Caledonia, South East Queensland None None
ARB 01 March 13–15 45 (30)3 1006 South India, Maldives None None
Marcus March 14–24 250 (155) 905 Tanimbar Islands, Top End, Kimberley $75 million None [33]
Nora March 20–26 155 (100) 958 Cape York Peninsula, New Guinea, Top End None None
Iris March 20–April 9 100 (65) 987 None None None
23U March 23–25 Unspecified 1004 None None None
Jelawat (Caloy) March 24–April 1 195 (120) 915 Caroline Islands Unknown 2 [40][41]
Josie March 29–April 2 75 (45) 993 Vanuatu, Fiji, Tonga $10 million 6 [33]

April

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Cyclone Keni

April was an inactive month with only four systems forming. Tropical Cyclone Keni made landfall in Fiji, causing millions in damages. Later in the month, Tropical Cyclone Fakir passed by Réunion, causing millions in damages and a small number of fatalities.

Tropical cyclones formed in April 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Keni April 5–11 140 (85) 970 Vanuatu, Fiji, Tonga $50 million None [33]
14F April 17–20 Unspecified 1000 Rotuma None None
Fakir April 20–24 130 (80) 975 Madagascar, Réunion, Mauritius $24.5 million 2 [42][33]
Flamboyan April 26–May 1 110 (70) 983 None None None

May

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Cyclone Mekunu

May was a relatively active month with seven systems forming. In the middle of the month, Cyclone Sagar affected Yemen, Somalia, Djibouti, Ethiopia, causing tens of millions in damages and several dozen deaths. Several days later, Cyclone Mekunu affected Yemen, Oman, and Saudi Arabia, causing hundreds of millions in damages and close to a few dozen deaths. At the same time, Tropical Storm Alberto caused over a hundred million in damages and a dozen fatalities throughout the Northwest Caribbean and the Eastern United States. Late in the month, BOB 01 caused a few deaths in Myanmar.

Tropical cyclones formed in May 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Lexi May 4–9 75 (45)4 988 Alejandro Selkirk Island, Juan Fernández Islands, Chile None None
04W May 10–15 Unspecified 1008 None None None
One-E May 10–11 55 (35)4 1007 None None None
Sagar May 16–20 85 (50)3 994 Yemen, Horn of Africa $30 million 79 [43][44][45]
Mekunu May 21–27 175 (110)3 960 Yemen, Oman, Saudi Arabia $1.5 billion 31 [46][47][48]
Alberto May 25–31 100 (65)4 990 Yucatán Peninsula, Cayman Islands, Cuba, Gulf Coast of the United States, Southeastern United States, Midwestern United States, Ontario $125 million 18 [49]
BOB 01 May 29–30 55 (35)3 990 Myanmar None 5 [50]

June

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Hurricane Aletta
Hurricane Bud

June was an active month with fourteen systems having formed. In early June, Tropical Storm Ewiniar impacted South China and Vietnam, causing hundreds of millions in damages and over a dozen deaths. At the same time, Severe Tropical Storm Maliksi killed a couple people in the Philippines despite never making landfall. In the middle of the month, Tropical Storm Gaemi made landfall in Taiwan, causing a few fatalities. Late in the month, Prapiroon affected Japan and the Korean Peninsula, killing a few people and causing over ten million in damages.

Tropical cyclones formed in June 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Ewiniar June 2–9 75 (45) 998 Vietnam, Philippines, South China, Taiwan, Ryukyu Islands $812 million 13 [48][51]
Maliksi (Domeng) June 3–11 110 (70) 970 Ryukyu Islands, Philippines, Honshu None 2 [52]
TD June 4–5 Unspecified 1006 None None None
Aletta June 6–11 220 (140)4 943 None None None
Bud June 9–15 220 (140)4 943 Western Mexico, Baja California Sur, Southwestern United States Minimal None
BOB 02 June 10–11 45 (30)3 989 Bangladesh None None
07W June 13–15 65 (40) 996 Taiwan, Ryukyu Islands None None
Gaemi (Ester) June 13–16 85 (50) 990 Taiwan, Ryukyu Islands None 3 [53]
Carlotta June 14–18 100 (65)4 997 Southwestern Mexico Unknown None
TD June 17–18 Unspecified 1000 South China None None
Daniel June 24–26 75 (45)4 1004 None None None
Emilia June 27–July 1 95 (60)4 997 None None None
Prapiroon (Florita) June 28–July 4 120 (75) 960 Japan, Korean Peninsula $10 million 4 [54][55]
Fabio June 30–July 6 175 (110)4 964 None None None

July

[edit]
Typhoon Maria

July was an active month with fourteen systems having formed. In the middle of the month, Typhoon Maria caused a few hundred million in damages and a couple deaths in East China. Around the same time, Hurricane Chris killed a person off the coast of North Carolina. Later in the month, Tropical Storm Son-Tinh impacted the Philippines, South China, Vietnam, Laos, Thailand, and Myanmar, causing over a $235 million in damages and several dozen deaths.

Tropical cyclones formed in July 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Maria (Gardo) July 3–12 195 (120) 915 Mariana Islands, Ryukyu Islands, Taiwan, East China $623 million 1 [56][54]
Beryl July 5–16 130 (80)4 991 Lesser Antilles, Hispaniola, Puerto Rico, Cuba, The Bahamas, Bermuda, Atlantic Canada Minimal None
Chris July 6–12 165 (105)4 969 Bermuda, East Coast of the United States, Atlantic Canada, Iceland Minimal 1 [57]
Son-Tinh (Henry) July 16–24 75 (45) 994 Philippines, South China, Vietnam, Laos, Thailand, Myanmar $256 million 170 [54]
TD July 16–17 Unspecified 998 South China, Vietnam, Laos $14.9 million None [58]
Ampil (Inday) July 17–24 95 (60) 985 Ryukyu Islands, China, Russian Far East $241 million 1 [59]
13W (Josie) July 20–23 55 (35) 996 Philippines, Taiwan, Ryukyu Islands, East China $87.4 million 16 [60]
BOB 03 July 21–23 45 (30)3 989 East India, North India Unknown 69
Wukong July 22–26 95 (60) 990 None None None
Jongdari July 23–August 4 140 (85) 960 Japan, East China $1.48 billion None [61][62]
Gilma July 26–29 75 (45)4 1005 None None None
Nine-E July 26–27 55 (35)4 1007 None None None
16W July 31–August 1 55 (35) 1002 None None None
Hector July 31–August 16 250 (155)4 936 Hawaii, Johnston Atoll Minimal None

August

[edit]
Typhoon Jebi

August was an active month with 21 systems having formed. Hurricane Florence made landfall in North Carolina with deadly flooding, resulting in $24.23 billion in damages[63] and killed 53 people, making it one of the costliest hurricanes to strike North Carolina, and the fourth deadliest to strike. Florence was also the first storm in the turn of activity. In the same month, Hurricane Lane made an extremely close pass near Hawaii after peaking as a Category 5 Hurricane, becoming Hawaii's wettest tropical cyclone on record[64] and the second wettest tropical cyclone in U.S. history, only behind Hurricane Harvey.

Tropical cyclones formed in August 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Shanshan August 2–10 130 (80) 970 Mariana Islands, Japan $132 thousand None
Ileana August 4–7 100 (65)4 998 Western Mexico, Baja California Sur Unknown 8 [65]
John August 5–10 175 (110)4 964 Western Mexico, Baja California Sur, Southern California None None
Yagi (Karding) August 6–15 75 (45) 990 Philippines, Taiwan, Ryukyu Islands, China $386 million 8 [66][67]
Kristy August 7–12 110 (70)4 991 None None None
BOB 04 August 7–8 45 (30)3 992 East India None None
Debby August 7–9 85 (50)4 998 None None None
Bebinca August 9–17 85 (50) 985 South China, Laos, Vietnam, Thailand, Myanmar $367 million 19 [68][69]
Leepi August 10–15 95 (60) 994 Japan, South Korea None None
Rumbia August 14–19 85 (50) 985 Ryukyu Islands, China, Korean Peninsula, Russian Far East $5.36 billion 53 [70][71]
Soulik August 15–24 155 (100) 950 Caroline Islands, Mariana Islands, Northeast China, Japan, Korean Peninsula, Russian Far East, Alaska $84.5 million 86 [72]
Lane August 15–29 260 (160)4 926 Hawaii $250 million 1 [62][73]
BOB 05 August 15–17 45 (30)3 994 East India, Central India, West India Unknown None
Ernesto August 15–18 75 (45)4 1003 Ireland, United Kingdom None
Cimaron August 16–24 155 (100) 950 Marshall Islands, Mariana Islands, Japan, Aleutian Islands $30.6 million None
24W (Luis) August 22–26 55 (35) 994 Taiwan, East China $34 million 7 [74][62]
TD August 24–26 Unspecified 1000 Ryukyu Islands, East China None None
Miriam August 26–September 2 155 (100)4 974 None None None
Jebi (Maymay) August 26–September 4 195 (120) 915 Mariana Islands, Taiwan, Japan, Russian Far East, Arctic $3.29 billion 17 [75][76][77][78]
Norman August 28–September 10 240 (150)4 937 Hawaii None None
Florence August 31–September 17 240 (150)4 937 West Africa, Cape Verde, Bermuda, Southeastern United States, Mid-Atlantic States, Atlantic Canada >$24.23 billion 57

September

[edit]
Typhoon Kong-rey

September was the most active month in the year at 23 tropical cyclones, including Hurricane Walaka, the third most intense in the Central Pacific on record and Typhoon Mangkhut as the third most intense worldwide of the year. Typhoon Kong-rey along with Hurricane Walaka both were Category 5 tropical cyclones on the Saffir–Simpson scale simultaneously in the Northern Hemisphere, marking the first time since 2005 that this rare occurrence happened. In the Atlantic, a turning point in the activity was also to be seen, with the 2018 Atlantic hurricane season to be the second Atlantic season in a row to see three hurricanes active at once on September 13.

Tropical cyclones formed in September 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Olivia September 1–13 215 (130)4 951 Hawaii $25 million None
Gordon September 3–6 110 (70)4 996 Greater Antilles, The Bahamas, Florida, Gulf Coast of the United States, Eastern United States, Ontario $200 million 3 [79][80]
TD September 5–8 55 (35) 1000 Ryukyu Islands None None
BOB 06 September 6–7 55 (35)3 990 East India Unknown None
Mangkhut (Ompong) September 7–17 205 (125) 905 Marshall Islands, Mariana Islands, Philippines, Taiwan, Hong Kong, Macau, South China, Vietnam $3.74 billion 134
Helene September 7–16 175 (110)4 967 West Africa, Cape Verde, Azores, Ireland, United Kingdom, Norway Unknown 3 [81]
Isaac September 7–15 120 (75)4 995 West Africa, Lesser Antilles, Haiti, Jamaica, Cayman Islands, Cuba Minimal None
Barijat (Neneng) September 8–13 75 (45) 998 Philippines, Taiwan, South China, Vietnam $7.3 million None
Paul September 8–11 75 (45)4 1002 None None None
Joyce September 12–19 85 (50)4 995 None None None
01 September 13–17 75 (45) 1004 None None None
Nineteen-E September 19–20 55 (35)4 1002 Baja California Sur, Northwestern Mexico, Southwestern United States, Texas, Oklahoma, Arkansas >$296 million 14
Daye September 19–22 65 (40)3 992 Andhra Pradesh, East India, Central India, North India Minimal None
Trami (Paeng) September 20–October 1 195 (120) 915 Mariana Islands, Taiwan, Japan, Russian Far East, Alaska $1 billion 4
TD September 21–22 Unspecified 1006 None None None
Eleven September 21–22 55 (35)4 1007 None None None
Kirk September 22–29 100 (65)4 998 Lesser Antilles $444,000 2
Leslie September 23–October 13 150 (90)4 968 Azores, Bermuda, East Coast of the United States, Madeira, Iberian Peninsula, France >$500 million 17
Rosa September 25–October 2 240 (150)4 936 Baja California Peninsula, Northwestern Mexico, Southwestern United States $50.5 million 3
29W September 25–27 55 (35) 1008 None None None
Liua September 26–29 75 (45) 994 Solomon Islands, Papua New Guinea None None
Zorbas September 27–October 1 120 (75) 987 Tunisia, Libya, Greece, Italy, Turkey Unknown 6
Kong-rey (Queenie) September 28–October 6 215 (130) 900 Caroline Islands, Mariana Islands, Japan, Taiwan, South Korea $172 million 3
Sergio September 29–October 13 220 (140)4 943 Baja CalifornNorthwestern Mexico, Southwestern United States $352.1 million 2
Walaka September 29–October 6 260 (160)4 921 Johnston Atoll, Northwestern Hawaiian Islands, Alaska, British Columbia Minimal None

October

[edit]
Typhoon Yutu

October was an active month of the year but less so than previous months at 11 tropical cyclones. Typhoon Yutu became the strongest tropical cyclone in 2018, neck-to-neck with Typhoon Kong-rey. Hurricane Michael caused $25.1 billion in damage after making landfall on the Florida Panhandle, becoming the third most intense hurricane to make landfall in the Continental United States in terms of minimum pressure. Cyclonic Storms Luban and Titli caused extensive damage throughout countries of Yemen and India, also becoming the first pair of tropical cyclones ever recorded to be active in both the Arabian Sea and Bay of Bengal simultaneously. Hurricane Willa also became the closest Category 5 to Mexico since Patricia.

Tropical cyclones formed in October 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Luban October 6–15 140 (85)3 976 Yemen, Oman $1 billion 14
Michael October 7–11 260 (160)4 919 Central America, Yucatán Peninsula, Cayman Islands, Cuba, Southeastern United States, East Coast of the United States, Atlantic Canada, Iberian Peninsula $25.1 billion 74
Titli October 8–12 150 (90)3 970 Andhra Pradesh, East India $920 million 85
Nadine October 9–13 100 (65)4 995 None None None
Tara October 14–17 100 (65)4 995 Southwestern Mexico Unknown None [82]
Vicente October 19–23 85 (50)4 1002 Honduras, El Salvador, Guatemala, Southwestern Mexico $7.05 million 16 [83]
TD October 19–20 Unspecified 1008 Vietnam, Cambodia, Thailand, Myanmar None None
Willa October 20–24 260 (160)4 925 Central America, Southwestern Mexico, Texas $825 million 9 [84][85]
TD October 20 Unspecified 1008 None None None
Yutu (Rosita) October 21–November 2 215 (130) 900 Caroline Islands, Mariana Islands, Philippines, South China, Taiwan $198 million 30
Oscar October 27–31 175 (110)4 966 None None None

November

[edit]
Typhoon Man-yi

November featured 10 tropical cyclones. Cyclone Gaja made landfall in South India, resulting in about 60 fatalities.

Tropical cyclones formed in November 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Xavier November 2–5 100 (65)4 995 Southwestern Mexico None None
Alcide November 5–11 165 (105) 965 Agaléga, Madagascar, Tanzania None None
TD November 9 <55 (35) 1002 None None None
Bouchra November 9–19 95 (60) 990 None None None
Gaja November 10–19 110 (70)3 992 Andaman Islands, South India, Sri Lanka $775 million 52
02F November 11–16 Unspecified 1003 Solomon Islands None None
TL November 14–18 Unspecified 1004 Java, Christmas Island None None
Usagi (Samuel) November 14–26 110 (70) 990 Caroline Islands, Philippines, Vietnam, Cambodia, Laos $16 million 4
Toraji November 16–22 65 (40) 1004 Vietnam, Malay Peninsula $43.2 million 22
Man-yi (Tomas) November 20–28 150 (90) 960 Caroline Islands, Alaska None None
Owen November 29–December 17 150 (90) 958 Solomon Islands, Papua New Guinea, Queensland, Northern Territory $25 million 1

December

[edit]
Cyclone Cilida

December was an active month with 13 tropical cyclones forming. Cyclone Cilida intensified into an Intense Tropical Cyclone, while never directly making landfall.

Tropical cyclones formed in December 2018
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
TL December 9–12 Unspecified 1005 Solomon Islands, Queensland None None
Phethai December 13–18 100 (65)3 993 East India, Northeast India $100 million 8
Kenanga December 14–22 185 (115) 942 None None None
Cilida December 16–24 215 (130) 940 Mauritius Minimal None
35W (Usman) December 25–29 55 (35) 1000 Palau, Philippines $103 million 156 [86]
TL December 27–28 Unspecified 1001 Top End, Timor, Kimberley None None
Penny December 26–January 9 95 (60) 987 Papua New Guinea, Queensland Minimal None
Mona December 28–January 7 95 (60) 985 Solomon Islands, Fiji Minimal None
03F December 28–January 1 55 (35) 998 Solomon Islands, Fiji None None
TL December 29–30 Unspecified 1007 Tagula Island None None
TL December 30–January 2 Unspecified 1007 Java None None
05F December 31–January 2 Unspecified 998 None None None

Global effects

[edit]
Season name Areas affected Systems formed Named storms Damage (USD) Deaths
2018 Atlantic hurricane season West Africa, Cape Verde, Lesser Antilles, Greater Antilles, Cayman Islands, Central America, Gulf Coast of the United States, East Coast of the United States, Southeastern United States, Eastern United States, Midwestern United States, Bermuda, Ontario, Atlantic Canada, Iceland, Iberian Peninsula, Madeira, Azores, Ireland, United Kingdom, France, Norway 16 15 >$50.205 billion 172
2018 Pacific hurricane season Central America, Mexico, Baja California Peninsula, Hawaii, Johnston Atoll, Northwestern Hawaiian Islands, Southwestern United States, Texas, Oklahoma, Arkansas, Alaska, British Columbia 26 23 >$1.258 billion 52
2018 Pacific typhoon season1 Caroline Islands, Marshall Islands, Mariana Islands, Guam, Philippines, Taiwan, China, Hong Kong, Macau, Myanmar, Vietnam, Cambodia, Laos, Thailand, Malay Peninsula, Ryukyu Islands, Honshu, Japan, Korean Peninsula, Russian Far East, Alaska, Aleutian Islands, Palau 43 28 >$30.23 billion 772
2018 North Indian Ocean cyclone season Andaman Islands, Myanmar, India, Bangladesh, Maldives, Arabian Peninsula, Horn of Africa, 14 7 $4.325 billion 343
2017–18 South-West Indian Ocean cyclone season1 Madagascar, Mozambique, Mauritius, Réunion 7 6 $63.9 million 108
2018–19 South-West Indian Ocean cyclone season2 Agaléga, Madagascar, Tanzania, Mauritius 4 4 None None
2017–18 Australian region cyclone season1 Western Australia, Christmas Island, Top End, Solomon Islands, South Australia, New Caledonia, South East Queensland, Tanimbar Islands, East Timor, Papua New Guinea 15 7 $165 million 41
2018–19 Australian region cyclone season2 Papua New Guinea, Solomon Islands, Java, Christmas Island, Timor, Queensland, Northern Territory 6 3 $25 million 1
2017–18 South Pacific cyclone season1 Fiji, New Caledonia, Vanuatu, Tonga, New Zealand, Samoan Islands, Wallis and Futuna, Niue, Solomon Islands 10 6 $377 million 11
2018–19 South Pacific cyclone season2 Solomon Islands, Fiji 3 1 None None
Mediterranean tropical-like cyclone Tunisia, Libya, Italy, Greece, Turkey 1 1 Unknown 6
Worldwide (See above) 145 [a] 101 >$86.65 billion 1,506[b]
  1. ^ The sum of the number of systems in each basin will not equal the number shown as the total. This is because when systems move between basins, it creates a discrepancy in the actual number of systems.
  2. ^ The sum of the number of fatalities in each basin will not equal the number shown as the total. This is because when systems move between basins, it creates a discrepancy in the actual number of fatalities.

Notes

[edit]

1 Only systems that formed either on or after January 1, 2018 are counted in the seasonal totals.
2 Only systems that formed either before or on December 31, 2018 are counted in the seasonal totals.
3 The wind speeds for this tropical cyclone/basin are based on the IMD Scale which uses 3-minute sustained winds.–
4 The wind speeds for this tropical cyclone/basin are based on the Saffir–Simpson scale which uses 1-minute sustained winds.
5 The wind speeds for this tropical cyclone are based on Météo-France which uses gust winds.
6 04F formed as a tropical low in the Australian region on December 28 before crossing into the South Pacific basin on December 31. This system was later named Mona in January 2019 and thus only counts for that year.
7 36W was the last tropical depression to form in the 2018 Pacific typhoon season. It was later named Pabuk on January 1, 2019, and as such only counts for that year.

See also

[edit]

Notes

[edit]
  1. ^ A major hurricane is a storm that ranks as Category 3 or higher on the Saffir–Simpson hurricane wind scale.[2]

References

[edit]
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  85. ^ "Hurricane — Category 5 Willa 2018". AccuWeather. Retrieved 25 September 2023.
  86. ^ "At least 50 killed in Bicol during Tropical Depression Usman". Rappler. December 30, 2018. Retrieved December 30, 2018.
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Tropical cyclone year articles (2010–2019)
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

Regional specialized meteorological centers

Tropical cyclone warning centers

Public Domain This article incorporates public domain material from websites or documents of the National Weather Service.

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