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Timeline of the 2018 North Indian Ocean cyclone season

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Timeline of the
2018 North Indian Ocean cyclone season
Season summary map
Season boundaries
First system formedMarch 13, 2018
Last system dissipatedDecember 17, 2018
Strongest system
NameMekunu
Maximum winds175 km/h (110 mph)
(3-minute sustained)
Lowest pressure960 hPa (mbar)
Longest lasting system
NameGaja
Duration9.625 days
Storm articles
Other years
2016, 2017, 2018, 2019, 2020

The 2018 North Indian Ocean cyclone season was an above-average period of tropical cyclone formation in the Northern Indian Ocean. The season featured 14 depressions, 10 deep depressions, 7 cyclonic storms, 5 severe cyclonic storms, 4 very severe cyclonic storms, and 1 extremely severe cyclonic storm. The season has no official boundaries,[citation needed] though storms typically form between April and December, with peaks in tropical cyclone activity from May–June and in November.[1]

The India Meteorological Department (IMD) is the official Regional Specialized Meteorological Centre for the Northern Indian Ocean basin,[2] and as such, it is responsible for tracking and issuing advisories on systems in the Arabian Sea and in the Bay of Bengal.[3] If tropical cyclones in the Northern Indian Ocean reach winds of 34 kn (63 km/h; 39 mph), it is given a name from a pre-defined naming list.[4] The Joint Typhoon Warning Center (JTWC) unofficially issues advisories on systems in the Northern Indian Ocean,[5] assigning tropical cyclones a numerical identifier[6] and suffixing it with the letter A for systems in the Arabian Sra and B for systems in the Bay of Bengal.[7] The IMD measures tropical cyclone wind speeds over a 3-minute average[8] while the JTWC uses a 1-minute average.[6]

Timeline

[edit]
Cyclone PhethaiCyclone GajaCyclone TitliCyclone LubanCyclone MekunuCyclone Sagar

March

[edit]

March 13

  • 03:00 UTC at 5°00′N 76°00′E / 5.0°N 76.0°E / 5.0; 76.0 – the IMD upgrades a well-marked low-pressure area in the Arabian Sea to a depression, estimating maximum 3-minute sustained winds of 45 km/h (30 mph) and a minimum central pressure of 1006 hPa (mbar; 29.71 inHg).[9]: 32–33 

March 15

  • 00:00 UTC – the IMD downgrades the depression to a well-marked low over Lakshadweep.[9]: 33 

May

[edit]

May 16

May 17

May 18

May 19

May 20

May 21

May 22

May 23

May 25

May 26

May 27

May 28

May 29

May 30

June

[edit]

June 10

June 11

  • 00:00 UTC – the IMD downgrades the depression to a well-marked low.[9]: 88 

July

[edit]

July 21

July 23

  • 00:00 UTC – the IMD downgrades the system to a well-marked low.[9]: 95 

August

[edit]

August 7

  • 09:00 UTC at 21°30′N 87°30′E / 21.5°N 87.5°E / 21.5; 87.5 – the IMD upgrades a well-marked low in the Bay of Bengal to a depression, estimating maximum 3-minute sustained winds of 45 km/h (30 mph) and a minimum central pressure of 992 Hpa (mbar; 29.29 inHg).[9]: 102–103 
  • between 14:30 and 16:30 UTC – the depression makes landfall close to Balasore.[9]: 103 

August 8

  • 03:00 UTC – the IMD downgrades the depression to a well-marked low.[9]: 103 

August 15

August 17

  • 03:00 UTC – the IMD downgrades the depression to a well-marked low.[9]: 113 

September

[edit]

September 6

September 7

September 19

September 20

September 21

September 22

  • 12:00 UTC – the IMD downgrades Daye to a well-marked low.[9]: 133 

October

[edit]

October 6

October 7

October 8

October 9

October 10

October 11

October 12

October 13

October 14

October 15

  • 03:00 UTC – the IMD downgrades Luban to a well-marked low.[9]: 153 

November

[edit]

November 10

November 11

November 12

November 13

November 15

November 16

November 17

November 18

November 19

December

[edit]

December 13

December 15

December 16

December 17

December 18

  • 00:00 UTC – the IMD downgrades Phethai to a well-marked low.[9]: 245 

See also

[edit]

References

[edit]
  1. ^ Kruk, Michael C. (September 1, 2019). "State of the Climate in 2018". North Indian Ocean Basin. Bulletin of the American Meteorological Society. 100 (9). American Meteorological Society: S127–S128. doi:10.1175/2019BAMSStateoftheClimate.1. hdl:10669/80308.
  2. ^ "Worldwide Tropical Cyclone Centers". National Hurricane Center. Miami, Florida. Retrieved August 24, 2021.
  3. ^ "Activities of RSMC, New Delhi". India Meteorological Department. Retrieved August 24, 2021.
  4. ^ Tropical Cyclone Operational Plan for the Bay of Bengal and the Arabian Sea: 2020 (Report). Geneva, Switzerland: World Meteorological Organization. 2020. p. 12. Retrieved August 24, 2021.
  5. ^ "Products and Services Notice". Joint Typhoon Warning Center. Pearl Harbor, Florida. Retrieved August 24, 2021.
  6. ^ a b "Frequently Asked Questions". Joint Typhoon Warning Center. Pearl Harbor, Florida. Retrieved August 24, 2021.
  7. ^ "North Indian Ocean Best Track Data". Joint Typhoon Warning Center. Pearl Harbor, Florida. Retrieved August 24, 2021.
  8. ^ Mohapatra, Mrutyunjay; et al., eds. (2016). WMO/ESCAP Panel on Tropical Cyclones Annual Review 2016 (PDF) (Report). World Meteorological Organization, United Nations Economic and Social Commission for Asia and the Pacific. p. ix. Retrieved August 25, 2021 – via India Meteorological Department.
  9. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da Report on Cyclonic Disturbances over North Indian Ocean During 2018 (PDF) (Report). New Delhi: India Meteorological Department. July 2019. Retrieved August 23, 2021.
  10. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw "2018 North Indian Ocean Best Track Data". Joint Typhoon Warning Center. Pearl Harbor, Hawaii. Retrieved August 23, 2021.