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Timeline of the 2018 Pacific typhoon season

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Timeline of the 2018 Pacific typhoon season
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The 2018 Pacific typhoon season was formerly the costliest Pacific typhoon season on record before being surpassed the following year. The season had no official boundaries, and storms can form year-round. Despite this, activity usually peaks between May and November. The season featured above-average activity, with 29 named storms, 13 typhoons, and 7 super typhoons forming in the West Pacific.[2][4][nb 2] The season's first named storm, Bolaven, developed on January 3, while the season's last named storm, Man-yi, dissipated on November 28. The season's first typhoon, Jelawat, reached typhoon status on March 29, eventually becoming also the first super typhoon the next day.

Quick facts Timeline of the 2018 Pacific typhoon season, Season boundaries ...

This timeline documents all of the events of the 2018 Pacific typhoon season. Most of the tropical cyclones form between May and November. The scope of this article is limited to the Pacific Ocean, north of the equator between 100°E and the International Date Line. The Japan Meteorological Agency (JMA) is the official Regional Specialized Meteorological Centre for the Western Pacific Basin. As such, it is responsible for assigning names to all tropical cyclones that reach 10-minute maximum sustained winds of at least 65 kilometres per hour (40 mph) in the region.[6] The Joint Typhoon Warning Center (JTWC) also monitors systems in the Western Pacific Basin, assigning systems a number with a "W" suffix if the system is a tropical depression or stronger. PAGASA also assigns local names to tropical depressions or stronger which form within or enter their area of responsibility, regardless if the JMA has assigned the cyclone a name; however, these names are not in common use outside of PAGASA's area of responsibility.[7] In this season, 21 systems entered or formed in the Philippine Area of Responsibility (PAR), of which 7 of them made landfall over the Philippines.

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Timeline

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Tropical Storm Pabuk (2019)Tropical Depression UsmanTropical Storm Toraji (2018)Tropical Storm Usagi (2018)Typhoon YutuTyphoon Kong-rey (2018)Typhoon TramiTropical Storm BarijatTyphoon MangkhutTyphoon Jebi (2018)Typhoon Cimaron (2018)Typhoon Soulik (2018)Tropical Storm RumbiaHurricane Hector (2018)Tropical Storm Bebinca (2018)Tropical Storm Yagi (2018)Typhoon JongdariTropical Depression JosieTropical Storm AmpilTropical Storm Son-Tinh (2018)Typhoon Maria (2018)Typhoon Prapiroon (2018)Tropical Storm Maliksi (2018)Tropical Storm Ewiniar (2018)Typhoon Jelawat (2018)Tropical Storm Sanba (2018)Tropical Storm Bolaven (2018)

January

January 1

Thumb
Track of Bolaven during early January.

January 2

January 3

  • 00:00 UTC
    • At 10.4°N 116.0°E / 10.4; 116.0  The JMA upgrades 01W (Agaton) to a tropical storm, assigning it the name Bolaven, estimating it has peaked in intensity with 10-minute maximum sustained winds of 35 kn (65 kph, 40 mph) and a minimum central pressure of 1002 hPa (mbar, 29.59 inHg).[2]
    • At 10.4°N 115.9°E / 10.4; 115.9  The JTWC also upgrades Bolaven (Agaton) to a tropical storm, with 1-minute sustained winds of 35 kn (65 kph, 40 mph) and a minimum central pressure of 1,001 hPa (1,001 mbar; 29.56 inHg).[9]
    • (08:00 PHT) at 10.6°N 116.0°E / 10.6; 116.0  PAGASA follows suit, upgrading Bolaven (Agaton) to a tropical storm, with 10-minute sustained winds of 35 knots (65 km/h; 40 mph) and a minimum central pressure of 1,002 hPa (1,002 mbar; 29.59 inHg).[8]
  • Around 06:00 UTC (14:00 PHT) at 11.1°N 114.8°E / 11.1; 114.8  PAGASA reports Bolaven (Agaton) has exited the PAR.[8]
  • 12:00 UTC at 11.5°N 113.2°E / 11.5; 113.2  The JTWC downgrades Bolaven to a tropical depression as it traverses west-northwest over the South China Sea.[9]

January 4

February

February 8

February 9

  • 06:00 UTC at 10.1°N 146.9°E / 10.1; 146.9  The tropical depression's central pressure continues to fluctuate as it slightly deepens to 1,004 hPa (1,004 mbar; 29.65 inHg) while moving to the southeast of Guam.[2]
  • 18:00 UTC at 9.1°N 145.0°E / 9.1; 145.0  The tropical depression's central pressure slightly deepens to 1,006 hPa (1,006 mbar; 29.71 inHg) after a brief rise while located south of Guam.[2]

February 10

February 11

  • 00:00 UTC at 6.6°N 137.4°E / 6.6; 137.4  The JTWC upgrades 02W to a tropical storm.[9]
  • 06:00 UTC at 6.8°N 135.8°E / 6.8; 135.8  The JMA upgrades 02W to a tropical storm, assigning it the name Sanba, assessing it has peaked in intensity with 10-minute winds of 35 knots (65 km/h; 40 mph) and a minimum central pressure of 1,000 hPa (1,000 mbar; 29.53 inHg) while moving towards Palau.[2]
  • Around 11:00 UTC (19:00 PHT)  PAGASA reports Sanba has entered the PAR and assigned the system Basyang with the agency assessing it with 10-minute winds of 35 knots (65 km/h; 40 mph) and a minimum central pressure of 1,000 hPa (1,000 mbar; 29.53 inHg).[8]
  • 12:00 UTC at 7.1°N 134.4°E / 7.1; 134.4  The JTWC assesses that Sanba (Basyang) has peaked in intensity, with 1-minute winds of 40 knots (74 km/h; 46 mph) and a minimum central pressure of 999 hPa (999.0 mbar; 29.50 inHg) as the system is about to hit Palau.[9]
  • Between 12:00 - 13:00 UTC (21:00 - 22:00 PWT) at 7.0°N 134.3°E / 7.0; 134.3  Tropical Storm Sanba (Basyang) hits the island of Peleliu in southern Palau.[8][10]
Thumb
Sanba approaching Mindanao on February 12.

February 12

  • 18:00 UTC at 9.0°N 127.3°E / 9.0; 127.3  The JTWC assesses Sanba (Basyang)'s central pressure slightly deepens to 1,002 hPa (1,002 mbar; 29.59 inHg) as it moves west-northwestwards towards northeastern Mindanao.[9]

February 13

February 14

  • 18:00 UTC
    • At 7.2°N 120.0°E / 7.2; 120.0  The JMA assesses Sanba (Basyang)'s central pressure at 1,008 hPa (1,008 mbar; 29.77 inHg) before rising again as the system moves northwestward.[2]
    • At 7.8°N 119.9°E / 7.8; 119.9  The JTWC assesses that Sanba (Basyang) re-strengthened into a tropical depression with 1-minute winds of 25 knots (46 km/h; 29 mph) and a minimum central pressure of 1,006 hPa (1,006 mbar; 29.71 inHg).[9]
    • (02:00 PHT, February 15) at 7.2°N 119.9°E / 7.2; 119.9  PAGASA also assesses Sanba (Basyang)'s central pressure at 1,008 hPa (1,008 mbar; 29.77 inHg) as the system turns towards Palawan.[8]

February 15

  • 00:00 UTC at 8.0°N 119.8°E / 8.0; 119.8  The JTWC downgrades Sanba (Basyang) into a tropical disturbance as it further weakens.[9]
  • 06:00 UTC
    • At 8.7°N 119.2°E / 8.7; 119.2  Sanba (Basyang)'s central pressure drops back to 1,008 hPa (1,008 mbar; 29.77 inHg) per the JMA.[2]
    • (14:00 PHT, February 15) at 8.6°N 119.2°E / 8.6; 119.2  PAGASA also reports Sanba (Basyang) re-attains a central pressure of 1,008 hPa (1,008 mbar; 29.77 inHg) as the system is about to make landfall.[8]
  • 14:00 UTC (22:00 PHT)  Sanba (Basyang) makes its final landfall at the border of Narra and Sofronio Española towns, Palawan.[8]

February 16

  • 00:00 UTC (08:00 PHT) at 10.0°N 116.0°E / 10.0; 116.0  PAGASA downgrades Sanba (Basyang) to a low-pressure area now over the South China Sea.[8]
  • 06:00 UTC at 9.8°N 115.7°E / 9.8; 115.7  The JMA assesses Sanba attaining a pressure drop of 1,010 hPa (1,010 mbar; 29.83 inHg) as the system decays.[2]
  • 12:00 UTC  Sanba weakens and dissipates to a low-pressure area.[2][12]

March

March 24

March 25

  • 00:00 UTC at 6.2°N 141.1°E / 6.2; 141.1  The JTWC designates the tropical depression near the Caroline Islands as 03W with 1-minute winds of 30 knots (56 km/h; 35 mph) and a central pressure of 1,000 hPa (1,000 mbar; 29.53 inHg).[9]
  • 06:00 UTC at 6.6°N 140.3°E / 6.6; 140.3  The JMA upgrades 03W to a tropical storm, assigning it the name Jelawat while moving northwestward.[2]

March 26

  • 18:00 UTC at 9.1°N 135.5°E / 9.1; 135.5  After briefly weakening, Jelawat re-deepens to a central pressure of 1,000 hPa (1,000 mbar; 29.53 inHg) per the JTWC as the system is about to enter the PAR.[9]

March 27

March 28

  • 00:00 UTC (08:00 PHT) at 12.5°N 135.0°E / 12.5; 135.0  Jelawat (Caloy) attains its within-PAR peak of 10-minute winds of 45 knots (83 km/h; 52 mph) and a minimum central pressure of 994 hPa (994.0 mbar; 29.35 inHg) as it turns to a north-northeastward heading.[8]
  • Around 01:00 UTC (09:00 PHT)   PAGASA reports Jelawat (Caloy) has exited the PAR.[8]
  • 06:00 UTC at 13.7°N 135.0°E / 13.7; 135.0  The JMA upgrades Jelawat to a severe tropical storm.[2]

March 29

Thumb
Morphed Microwave Imagery (MMI) of Jelawat rapidly intensifying on March 29-30.

March 30

  • 00:00 UTC at 15.7°N 137.4°E / 15.7; 137.4  Jelawat continues intensifying, reaching Category 2-equivalent typhoon status as it moves east-northeast.[9]
  • 06:00 UTC at 16.2°N 138.1°E / 16.2; 138.1  The JMA estimates that Jelawat has peaked in intensity with 10-minute sustained winds of 105 knots (194 km/h; 121 mph) and a minimum central pressure of 915 hPa (915.0 mbar; 27.02 inHg). The JTWC, meanwhile, further upgrades Jelawat to a Category 4-equivalent typhoon as it continues rapidly intensifying.[2][9]
  • 12:00 UTC at 16.8°N 139.1°E / 16.8; 139.1  The JTWC further upgrades Jelawat to a Category 4 super typhoon, peaking with maximum 1-minute winds of 130 knots (240 km/h; 150 mph) and a minimum central pressure of 926 hPa (926.0 mbar; 27.34 inHg) while moving northeastward.[9][13]
  • 18:00 UTC at 17.5°N 139.9°E / 17.5; 139.9  The JTWC downgrades Jelawat back to a Category 4 typhoon.[9]

March 31

April

April 1

May

Thumb
Track of 04W during early-mid May.

May 10

May 11

May 12

May 13

  • 06:00 UTC at 20.1°N 145.8°E / 20.1; 145.8  The JMA reports 04W has re-attained a central pressure of 1,008 hPa (1,008 mbar; 29.77 inHg) while the JTWC downgrades the system to a tropical depression as it continues to move west-northwest.[18][19][9]
  • 18:00 UTC at 20.6°N 144.4°E / 20.6; 144.4  The JMA assesses 04W's central pressure fluctuates to its lower limit of 1,008 hPa (1,008 mbar; 29.77 inHg)[18][20]

May 14

May 15

  • 00:00 UTC  The JMA last notes Ex-04W as it becomes absorbed by an extratropical low, with the system fully dissipating six hours later.[23]

June

June 2

June 3

June 4

June 5

June 6

Thumb
Ewiniar at its peak intensity on June 7.

June 7

June 8

June 9

Thumb
Maliksi at its peak intensity on June 10.

June 10

  • 00:00 UTC
    • (08:00 PHT) at 25.0°N 130.7°E / 25.0; 130.7  Both the JMA and PAGASA estimate Maliksi (Domeng) has peaked in intensity with 10-minute winds of 60 knots (110 km/h; 69 mph) and a central pressure of 970 hPa (970.0 mbar; 28.64 inHg) while gradually accelerating to the northeast.[2][8]
    • At 25.3°N 130.7°E / 25.3; 130.7  The JTWC also reports Maliksi (Domeng) has peaked in intensity with 1-minute winds of 60 knots (110 km/h; 69 mph) and a central pressure of 974 hPa (974.0 mbar; 28.76 inHg) southeast of Okinawa.[9]
  • 01:00 UTC (09:00 PHT)  PAGASA reports Maliksi (Domeng) has left the PAR.[8]
  • 06:00 UTC at 23.1°N 118.6°E / 23.1; 118.6  The JMA reports Tropical Depression Ewiniar has re-attained its lowest pressure of 998 hPa (998.0 mbar; 29.47 inHg) as the system emerges over the Taiwan Strait.[2]
  • Between 06:00 - 12:00 UTC (14:00 - 20:00 TST)  Tropical Depression Ewiniar rapidly crosses Taiwan from west to east.[2]
  • 18:00 UTC at 23.9°N 122.8°E / 23.9; 122.8  Ewiniar deepens again to its lowest pressure of 998 hPa (998.0 mbar; 29.47 inHg) as the system moves east-northeast near the Ryukyu Islands.[2]

June 11

June 12

  • 18:00 UTC at 38.8°N 157.7°E / 38.8; 157.7  The JMA last notes the extratropical remnants of Maliksi as it dissipates well east of Japan; the system fully dissipates six hours later.[2]

June 13

June 14

  • 00:00 UTC at 25.3°N 124.5°E / 25.3; 124.5  The JTWC reports 07W has intensified to a subtropical storm with 1-minute winds of 35 knots (65 km/h; 40 mph) and a central pressure of 993 hPa (993.0 mbar; 29.32 inHg) as it starts its extratropical transition.[9]
  • 06:00 UTC at 26.8°N 126.4°E / 26.8; 126.4  The JTWC assesses that 07W has transitioned into an extratropical cyclone west of Okinawa.[9]
  • 06:00 UTC at 21.7°N 119.0°E / 21.7; 119.0  The JTWC begins tracking the tropical depression west-southwest of Taiwan, designating it 08W as it moves closer to the said country.[9]
  • Around 16:00 UTC (00:00 PHT, June 15)  08W enters the PAR, prompting the PAGASA to assign it the name Ester'.[8]
  • 18:00 UTC at 22.7°N 120.2°E / 22.7; 120.2  The JTWC upgrades 08W (Ester) to a tropical storm with an initial peak of 1-minute winds of 35 knots (65 km/h; 40 mph) and a central pressure of 993 hPa (993.0 mbar; 29.32 inHg) as it is about to strike Taiwan.[9]
Thumb
Track of Gaemi at mid-June.

June 15

  • 00:00 UTC
  • 06:00 UTC at 23.6°N 122.0°E / 23.6; 122.0  The JTWC re-upgrades Gaemi (Ester)to a tropical storm with a secondary peak of 1-minute winds of 35 knots (65 km/h; 40 mph) and a higher central pressure of 995 hPa (995.0 mbar; 29.38 inHg) as it emerges over the northern Philippine Sea.[9]
  • 12:00 UTC (20:00 PHT)  Tropical Storm Gaemi (Ester) reaches its within-PAR peak of 10-minute winds of 35 knots (65 km/h; 40 mph) and a central pressure of 992 hPa (992.0 mbar; 29.29 inHg) as it accelerates northeastward.[8]
  • Around 15:00 UTC (23:00 PHT)  Tropical Storm Gaemi (Ester) exits the PAR while paralleling the Ryukyu Islands.[8]
  • 18:00 UTC at 25.7°N 124.8°E / 25.7; 124.8  The JTWC analyzes Gaemi has turned to a subtropical storm as it continues moving northeastward.[9]

June 16

  • Between 00:00 - 06:00 UTC (09:00 - 15:00 JST)  Tropical Storm Gaemi crosses Okinawa.[9][8]
  • 06:00 UTC at 26.8°N 128.9°E / 26.8; 128.9  The JMA estimates that Gaemi has peaked in intensity with 10-minute winds of 45 knots (83 km/h; 52 mph) and a central pressure of 990 hPa (990.0 mbar; 29.23 inHg) as it continues to move east-northeastward.[2]

June 17

June 18

June 21

June 28

June 29

July

July 1

Thumb
Prapiroon near Japan at peak intensity on July 2.

July 2

  • 00:00 UTC at 27.2°N 127.0°E / 27.2; 127.0  The JMA upgrades Prapiroon to a typhoon, subsequently peaking in 10-minute winds of 65 knots (120 km/h; 75 mph) as it passes west of Okinawa.[2]
  • 06:00 UTC at 28.2°N 127.2°E / 28.2; 127.2  The JTWC estimates that Prapiroon has reached its maximum 1-minute sustained winds of 80 knots (150 km/h; 92 mph).[9]
  • 18:00 UTC

July 3

July 4

July 5

July 6

July 8

July 9

July 10

July 11

July 13

  • 00:00 UTC  Maria dissipates over Central China.[2]

July 14

July 15

July 16

11W made 3 landfalls on Camiguin de Babuyanes, Fuga Island, and Dalupiri Island.[37]

July 17

July 18

Son-Tinh made a fifth landfall on Hà Tĩnh Province.[42]

July 19

July 20

July 21

July 22

Son-Tinh made a sixth landfall on Hainan.[9]

July 23

Son-Tinh made a seventh and eighth landfall on the Leizhou Peninsula.[9]

July 24

July 25

July 26

July 27

July 28

July 29

July 30

July 31

August

August 1

August 2

August 3

August 4

August 5

August 6

August 7

  • 00:00 UTC  the PAGASA upgrades 18W to a tropical depression, assigning it the local name Karding.[57]
  • 06:00 UTC at 31.2°N 143.9°E / 31.2; 143.9  the JTWC upgrades Shanshan to a Category 2-equivalent typhoon on the SSHWS, estimating maximum 1-minute sustained winds of 155 km/h (100 mph).[9]
  • 12:00 UTC at 32.0°N 143.1°E / 32.0; 143.1  the JTWC downgrades Shanshan to a Category 1-equivalent typhoon on the SSHWS.[9]

August 8

August 9

August 10

August 11

August 12

August 13

August 14

August 15

August 16

August 17

August 18

August 19

August 20

August 21

August 22

August 23

August 24

August 25

August 26

August 27

August 28

August 29

August 30

August 31

  • 00:00 UTC at 17.9°N 144.2°E / 17.9; 144.2  the JMA estimates that Jebi has peaked in intensity with maximum sustained winds of 195 km/h (120 mph) and a minimum central pressure of 915 hPa (mbar; 27.02 inHg).[2]
  • 06:00 UTC at 18.2°N 142.7°E / 18.2; 142.7  the JTWC estimates that Jebi has peaked in intensity with maximum 1-minute sustained winds of 285 km/h (180 mph).[9]

September

September 1

September 2

September 3

September 4

September 5

September 6

  • 00:00 UTC at 21.2°N 129.2°E / 21.2; 129.2  the JMA estimates that the Philippine Sea tropical depression has peaked in intensity, with maximum sustained winds of 55 km/h (35 mph) and a minimum central pressure of 1004 hPa (mbar; 29.65 inHg).[77]
  • 12:00 UTC at 11.8°N 170.2°E / 11.8; 170.2  the JMA begins tracking a tropical depression near the Marshall Islands.[2]

September 7

September 8

September 9

September 10

September 11

September 12

  • 06:00 UTC at 14.0°N 135.2°E / 14.0; 135.2  the JTWC estimates that Mangkhut has peaked in intensity with maximum 1-minute sustained winds of 285 km/h (180 mph).[9]
  • 07:00 UTC  Mangkhut enters the PAR, prompting the PAGASA to assign it the local name Ompong.[81]

September 13

September 14

  • 17:30 UTC  Mangkhut makes its first landfall on Baggao.[81]

September 15

September 16

September 17

September 18

  • 00:00 UTC  Mangkhut dissipates over Southern China.[2]

September 20

September 21

September 22

September 23

  • 02:30 UTC  Trami enters the PAR, prompting the PAGASA to assign it the local name Paeng.[85]
  • 06:00 UTC  the International Date Line tropical depression dissipates.[86]
  • 06:00 UTC at 17.3°N 134.2°E / 17.3; 134.2  the JTWC upgrades Trami to a Category 3-equivalent typhoon on the SSHWS.[9]
  • 12:00 UTC at 17.5°N 133.3°E / 17.5; 133.3  the JTWC upgrades Trami to a Category 4-equivalent typhoon on the SSHWS.[9]

September 24

September 25

September 26

September 27

September 28

September 29

September 30

October

October 1

October 2

October 3

October 4

October 5

October 6

October 7

  • 18:00 UTC  Kong-rey dissipates.[2]

October 19

  • 00:00 UTC at 9°N 109°E / 9; 109  the JMA begins tracking a tropical depression in the South China Sea, estimating a minimum central pressure of 1008 hPa (mbar; 29.77 inHg).[93]

October 20

October 21

October 22

October 23

October 24

October 25

October 26

  • 06:00 UTC at 17.0°N 139.1°E / 17.0; 139.1  the JTWC upgrades Yutu to a Category 5-equivalent typhoon on the SSHWS.[9]
  • 22:30 UTC  Yutu enters the PAR, prompting the PAGASA to assign it the local name Rosita.[95]

October 27

October 28

October 29

October 30

October 31

November

November 2

November 3

  • 06:00 UTC  Yutu dissipates over the South China Sea.[2]

November 13

November 16

November 17

November 18

November 20

November 21

November 22

November 23

November 24

November 25

November 26

November 27

November 28

November 30

  • 12:00 UTC  Man-yi crosses the International Date Line.[2]

December

December 25

  • 06:00 UTC at 8°N 135°E / 8; 135  the JMA begins tracking a tropical depression in the Philippine Sea.[102]
  • 07:00 UTC  the Philippine Sea tropical depression enters the PAR, prompting the PAGASA to assign it the local name Usman.[103]

December 27

  • 06:00 UTC at 9.9°N 130.9°E / 9.9; 130.9  the JTWC begins tracking the Philippine Sea tropical depression, designating it 35W.[9]
  • 18:00 UTC at 10.7°N 128.4°E / 10.7; 128.4  the JMA estimates that 35W has peaked in intensity with maximum sustained winds of 55 km/h (35 mph) and a minimum central pressure of 1000 hPa (mbar; 29.53 inHg).[104]

December 28

December 29

  • 15:00 UTC  the JMA stops tracking 35W.[105]

December 31

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Notes

  1. While Pabuk formed during the 2018 season as being the last system, it was considered to be part of the 2019 Pacific typhoon season, based on the JMA's annual report, thus, 35W (Usman) would be the last system of this season while Pabuk would be the first system for the following season.[1][2][3]
  2. Super typhoons are an unofficial classification given by the Joint Typhoon Warning Center for storms whose strength are 130 knots (240 km/h; 150 mph) or above.[5]
  3. Operationally, the JTWC marked the system as a tropical cyclone, but post-analysis reconsiders 07W as a subtropical cyclone.[27]
  4. The position is as of 14:00 UTC.
  5. The position is as of 02:00 UTC.
  6. The position is as of 07:00 UTC.
  7. The position is as of 20:00 UTC.
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