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The 2018 North Atlantic hurricane season was a very active hurricane season that, with a damage total of at least $25 billion (USD), was the second costliest tropical cyclone season on record. With over 5.000 estimated deaths, 2018 was the deadliest season on records,it also featured strong storms that made landfall in some countries of the third world.

The season officially began on June 15 and ended on November 30. These dates historically describe the period of year when most tropical cyclones form in the Atlantic basin. However, the formation of tropical cyclones is possible at other times of the year.

Initial predictions for the season anticipated that an La Niña would develop, lowering tropical cyclone activity. However, the predicted La Niña failed to develop, with warm conditions .This led forecasters to raise their predicted totals, with some later anticipating that the season could be the most active since 2004.

In mid-June, Subtropical Storm Arani caused gale winds in Sao Paulo area, which is rarely struck by tropical cyclones, due to its stable climatic conditions and cold waters. In late July, Eçai caused very severe damages in the central-north coast of Angola,flooding harbours and pulling devasting rains mainland and killing a unknow number of people,later in the next month,Kamby made landfall as a weakening hurricane in the nearly zone devasted by Eçai,causing severe damages too,in the middle of august,another cyclone called Nicolaus,became the strongest cyclone of the season,causing catastrofic damages in the south Angolan coast,travelling in mainland Africa until it disipated several days later,other cyclones caused severe damages in other countries,but minor in comparison with the earlier explained cyclones.Overall,the season was more deadly than expected because of the changing death tolls of some storms.

Seasonal forecasts[]

Predictions of tropical activity in the 2018 season
Source Date Named
storms
Hurricanes Major
hurricanes
Average (1981–2010) 12.1 6.4 2.7
Record high activity 28 15 7
Record low activity 4 2 0
–––––––––––––––––––––––––––––––––––––––––––––––––––––––
TSR December 7, 2017 15 7 3
CSU April 5, 2018 14 7 3
TSR April 5, 2018 12 6 2
NCSU April 16, 2018 14–18 7–11 3–5
BHN April 19, 2018 13 7 2
NOAA May 24, 2018 10–16 5–9 1–4
UKMO May 25, 2018 11* 6* N/A
BHN May 30, 2018 9 4 1
TSR May 31, 2018 14 6 2
BHN July 2, 2018 11 4 2
TSR July 5, 2018 18 10 5
CSU August 2, 2018 14 5 2
BHN August 6, 2018 16 7 3
NOAA August 9, 2018 9–16 4–8 2–5

–––––––––––––––––––––––––––––––––––––––––––––––––––––––

Actual activity
16 10 5
* June–November only.
† Most recent of several such occurrences.

Ahead of and during the season, several national meteorological services and scientific agencies forecast how many named storms, hurricanes, and major hurricanes (Category 3 or higher on the Saffir-Simpson scale) will form during a season and/or how many tropical cyclones will affect a particular country. These agencies include the Tropical Storm Risk (TSR) Brazilian Navy Hydrographic (BHN) Consortium of University College London, the National Oceanic and Atmospheric Administration (NOAA) and Colorado State University (CSU). The forecasts include weekly and monthly changes in significant factors that help determine the number of tropical storms, hurricanes, and major hurricanes within a particular year.

Season summary[]

Saffir-Simpson Hurricane Scale

Storms[]

Subtropical Storm Arani[]

Subtropical storm (SSHWS)
Leslie22 Noratlsts1
DurationJune 18 – June 21
Peak intensity70 mph (110 km/h) (1-min) 986 mbar (hPa)

Tropical Storm Bapo[]

Tropical storm (SSHWS)
Amazona21 Noratlsts2
DurationJune 20 – June 25
Peak intensity40 mph (65 km/h) (1-min) 998 mbar (hPa)

Hurricane Cari[]

Category 1 hurricane (SSHWS)
Leslie 3 Noratlsts3
DurationJuly 1 – July 8
Peak intensity80 mph (130 km/h) (1-min) 980 mbar (hPa)

Tropical Depression Four[]

Tropical depression (SSHWS)
Amazonasdepresion Noratlsts5
DurationJuly 2 – July 5
Peak intensity30 mph (45 km/h) (1-min) 1004 mbar (hPa)

Tropical Storm Deni[]

Tropical storm (SSHWS)
Deni storm Noratlsts6
DurationJuly 2 – July 9
Peak intensity70 mph (110 km/h) (1-min) 990 mbar (hPa)

Hurricane Eçai[]

Category 3 hurricane (SSHWS)
Flrence 2 Noratlsts7
DurationJuly 19 – August 2
Peak intensity120 mph (195 km/h) (1-min) 940 mbar (hPa)

Tropical Storm Guará[]

Tropical storm (SSHWS)
95L 2018-07-04 1555Z Noratlsts8
DurationJuly 19 – July 24
Peak intensity45 mph (75 km/h) (1-min) 992 mbar (hPa)

Subtropical Storm Iba[]

Subtropical storm (SSHWS)
768px-Leslie 2018-09-28 1555Z Noratlsts9
DurationJuly 21 – July 25
Peak intensity60 mph (95 km/h) (1-min) 994 mbar (hPa)

Hurricane Jaguar[]

Category 2 hurricane (SSHWS)
Miriam 2018-08-31 2110Z Noratlsts10
DurationAugust 2 – August 18
Peak intensity105 mph (165 km/h) (1-min) 967 mbar (hPa)

Hurricane Kamby[]

Category 4 hurricane (SSHWS)
Kenneth afek Noratlsts11
DurationAugust 2 – August 14
Peak intensity150 mph (240 km/h) (1-min) 932 mbar (hPa)

Tropical Storm Mani[]

Tropical storm (SSHWS)
Guambi2 Noratlsts12
DurationAugust 5 – August 8
Peak intensity50 mph (85 km/h) (1-min) 996 mbar (hPa)

Hurricane Nicolaus[]

Category 5 hurricane (SSHWS)
Mekunu 22 Noratlsts13
DurationAugust 9 – August 26
Peak intensity180 mph (285 km/h) (1-min) 912 mbar (hPa)

Hurricane Olavo[]

Category 4 hurricane (SSHWS)
Jelawat 2018-03-30 0550Z Noratlsts14
DurationAugust 24 – September 10
Peak intensity140 mph (220 km/h) (1-min) 941 mbar (hPa)

Hurricane Pascual[]

Category 5 hurricane (SSHWS)
Jebi 2018-08-31 033vv2Z Noratlsts15
DurationSeptember 14 – September 29
Peak intensity160 mph (260 km/h) (1-min) 928 mbar (hPa)

Hurricane Quim[]

Category 1 hurricane (SSHWS)
Berly in angola Noratlsts16
DurationOctober 2 – October 5
Peak intensity85 mph (140 km/h) (1-min) 976 mbar (hPa)

Hurricane Rosalicia[]

Category 2 hurricane (SSHWS)
Eduardo Noratlsts17
DurationOctober 4 – October 9
Peak intensity100 mph (155 km/h) (1-min) 958 mbar (hPa)

Tropical Depression Eighteen[]

Tropical depression (SSHWS)
Eighteen122 Noratlsts18
DurationOctober 24 – October 25
Peak intensity35 mph (55 km/h) (1-min) 1001 mbar (hPa)

Tropical Storm Salomão[]

Tropical storm (SSHWS)
Saloñai Noratlsts19
DurationNovember 3 – November 7
Peak intensity50 mph (85 km/h) (1-min) 998 mbar (hPa)

Storm names[]

The following names are published by the Brazilian Navy Hydrographic Center and used for named storms that form in the area west of 20ºW and south of equator in the North Atlantic Ocean since 1951.

  • Arani
  • Bapo
  • Cari
  • Deni
  • Eçaí
  • Guará
  • Iba
  • Jaguar
  • Kamby
  • Mani
  • Nicolaus
  • Olavo
  • Pascual
  • Quim
  • Rosalicia
  • Salomão
  • Tacito (unused)
  • Uiara (unused)
  • Verônica (unused)
  • Zita (unused)


Season effects[]

This is a table of the storms and their effects in the 2018 Atlantic hurricane season. This table includes the storm's names, duration, peak intensity, Areas affected (bold indicates made landfall in that region at least once), damages, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but are still storm-related. Damage and deaths include totals while the storm was extratropical, a wave or a low. All of the damage figures are in 2018 USD (the listed damage figure is in millions).

2018 North Atlantic tropical cyclone season statistics
Storm
name
Dates active Storm category
at peak intensity
Max 1-min
wind
mph (km/h)
Min.
press.
(mbar)
Areas affected Damage
(USD)
Deaths
Arani June 18 – June 21 Subtropical storm 70 (110) 986 Sao Paulo 200 3
Bapo June 20 – June 25 Tropical storm 40 (65) 998 Amazonas delta 15 5
Cari July 1 – July 8 Category 1 hurricane 80 (130) 980 None 0 0
Four July 2 – July 5 Tropical depression 30 (45) 1004 Amazonas Unknow Unknow
Deni July 2 – July 9 Tropical storm 70 (110) 990 None 0 0
Eçai July 19 – August 2 Category 3 hurricane 120 (195) 940 Angola 15 5
Guará July 19 – July 24 Tropical storm 45 (75) 992 None 0 0
Iba July 21 – July 25 Subtropical storm 60 (95) 994 None 0 0
Jaguar August 2 – August 18 Category 2 hurricane 105 (165) 967 West Brazil 100 4
Kamby August 2 –August 14 Category 4 hurricane 150 (240) 932 Namibia 1460 243
Mani August 5 – August 8 Tropical storm 50 (85) 996 Angola Unknow 32
Nicolaus August 9 – August 26 Category 5 hurricane 180 (285) 912 Western Africa 5000 Over 3000
Olavo August 24 – September 10 Category 4 hurricane 140 (220) 941 North Namibia,South Africa Unknow 12
Pascual September 14 – September 29 Tropical storm 160 (260) 928 None 0 0
Quim October 2 – October 5 Tropical storm 85 (140) 976 Angola 2000 520
Rosalicia October 4 – October 9 Category 2 hurricane 100 (155) 976 Namibia 13,300 178
Eighteen October 24 – October 25 Tropical depression 35 (55) 1001 Inland Angola Unknow 12
Salomão November 2 – November 7 Tropical storm 50 (85) 998 Paraná Minimal 1
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