List of very severe cyclonic storms explained

A Very Severe Cyclonic Storm is the third highest category used by the India Meteorological Department (IMD) to classify tropical cyclones, within the North Indian Ocean tropical cyclone basin between the Malay Peninsula and the Arabian Peninsula. Within the basin a very severe cyclonic storm is defined as a tropical cyclone that has 3-minute mean maximum sustained wind speeds of between NaNkn. The category was introduced alongside the Super Cyclonic Storm category during 1999 in order to replace the previously used Severe Cyclonic Storm with Core of Hurricane Winds. However, it was bifurcated during 2015, when the IMD introduced a new Extremely Severe Cyclonic Storm category. There have been at least eight storms that have attained such an intensity. The most recent super cyclonic storm was Cyclone Kyarr in 2019 North Indian Ocean cyclone season.

Background

The North Indian Ocean tropical cyclone basin is located to the north of the Equator, and encompasses the Bay of Bengal and the Arabian Sea, between the Malay Peninsula and the Arabian Peninsula.[1] [2] The basin is officially monitored by the India Meteorological Department's Regional Specialized Meteorological Centre in New Delhi, however, other national meteorological services such as the Bangladesh and Pakistan Meteorological Department's also monitor the basin.[1] [2]

The Very Severe Cyclonic Storm category was introduced during 1999 alongside Super Cyclonic Storms in order, to replace the previously used Severe Cyclonic Storm with Core of Hurricane Winds.[2] At the time it was the second-highest category with systems having 3-minute sustained wind speeds of between NaNkn.[3] However, during 2015 the category was bifurcated, after the IMD introduced a new Extremely Severe Cyclonic Storm category. As a result, very severe cyclonic storms are currently estimated, to have 3-minute sustained wind speeds of between NaNkn.[1]

Systems

NameSystem datesSustained
wind speeds		PressureAreas affectedDeathsDamage
(USD)
Unnamed Orissa [4]
Unnamed West Bengal
[5]
85kn 980sigfig=4NaNsigfig=4 [6]
80kn 986sigfig=4NaNsigfig=4
70kn 988sigfig=4NaNsigfig=4
70kn 984sigfig=4NaNsigfig=4 [7]
75kn 970sigfig=4NaNsigfig=4
80kn 975sigfig=4NaNsigfig=4 Bangladesh, Myanmar [8]
70kn 980sigfig=4NaNsigfig=4 Tamil Nadu, West Bengal, Bangladesh
65kn 979sigfig=4NaNsigfig=4 West Bengal, Bangladesh [9]
70kn 987sigfig=4NaNsigfig=4 Arabia
80kn 983sigfig=4NaNsigfig=4 [10]
65kn 984sigfig=4NaNsigfig=4
80kn 985sigfig=4NaNsigfig=4
75kn 984sigfig=4NaNsigfig=4
75kn 984sigfig=4NaNsigfig=4 [11]
75kn 970sigfig=4NaNsigfig=4 [12]
80kn 979sigfig=4NaNsigfig=4 [13]
85kn 976sigfig=4NaNsigfig=4
70kn 970sigfig=4NaNsigfig=4 [14]
70kn 977sigfig=4NaNsigfig=4
65kn 987sigfig=4NaNsigfig=4
80kn 981sigfig=4NaNsigfig=4
75kn 984sigfig=4NaNsigfig=4 [15]
80kn 965sigfig=4NaNsigfig=4 [16]
70kn 980hPa [17]
65kn 983hPa [18]
65kn 983hPa
75kn 980hPa
65kn [19]
75kn 970hPa [20]
65kn 986hPa
65kn 984hPa
77kn 978hPa
77kn 978hPa
65kn 984hPa
77kn 982hPa
65kn 984hPa
65kn 980hPa
85kn 964hPa
75kn 969hPa
75kn 980hPa Malay Peninsula, Andaman and Nicobar Islands, India
70kn 975hPa Sumatra, Andaman and Nicobar Islands, Thailand
Malaysia, Sri Lanka, India
85kn 976hPa Sri Lanka, South India, Western India, Maldives [21]
75kn 978hPa Yemen, Oman [22]
Titli 80kn 972hPa Andhra Pradesh, Odisha, West Bengal, Bangladesh
70kn 976hPa Andaman Islands, India, Sri Lanka
80kn 970hPa Maldives, India, Pakistan, Oman [23]
75kn 972hPa Western India, Oman, Saudi Arabia, Yemen [24]
75kn 976hPa Myanmar, Andaman and Nicobar Islands
Eastern India, Bangladesh 		[25]
GatiNovember 21 – 24, 202075kn976 hPaSocotra, Yemen, Somalia, Djibouti, Ethiopia9$1 million
November 23 – 27, 202065kn980 hPaSri Lanka, India14$600 million
May 23 – 28, 202170kn972 hPaSri Lanka, Andaman and Nicobar Islands, Myanmar, India, Bangladesh20$2.84 billion[26]

External links

Notes and References

  1. RA I Tropical Cyclone Committee . World Meteorological Organization . Tropical Cyclone Operational Plan for the Tropical Cyclone Operational Plan for the Bay of Bengal and the Arabian Sea 2019. May 8, 2020.
  2. Best track data of tropical cyclonic disturbances over the north Indian Ocean. July 14, 2009. India Meteorological Department. October 31, 2015.
  3. Best track data of tropical cyclonic disturbances over the north Indian Ocean. July 14, 2009. India Meteorological Department. October 31, 2015.
  4. Web site: Historical records of 12 most devastating cyclones, which formed in the Bay of Bengal and made landfall on the East coast of India . National Cyclone Risk Mitigation Project. June 5, 2010. May 23, 2020. https://web.archive.org/web/20100605095539/http://ncrmp.gov.in/ncrmp/AnnIIb.html. dead.
  5. [ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/cd024_pdf/005ED278.pdf India Weather Review Annual Summary — Part-C: Storms and Depressions 1966]. India Meteorological Department. 1967. May 30, 2020.
  6. [ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/cd024_pdf/005ED27B.pdf India Weather Review Annual Summary — Part-C: Storms and Depressions 1967]. India Meteorological Department. 1969. May 30, 2020.
  7. [ftp://ftp.library.noaa.gov/docs.lib/htdocs/rescue/cd024_pdf/005ED27E.pdf India Weather Review Annual Summary — Part-C: Storms and Depressions 1968]. India Meteorological Department. 1969. May 26, 2020.
  8. India Weather Review Annual Summary — Part-C: Storms and Depressions 1970. India Meteorological Department. 1971. May 26, 2020. PDF.
  9. Das, P K. George, C A. Jambunathan, R. Cyclones and Depressions of 1971 - Bay of Bengal and Arabian Sea. Mausam. 31. 3. 453–356.
  10. Das, P K. George, C A. Jambunathan, R. Cyclones and Depressions of 1972 - Bay of Bengal and Arabian Sea. Mausam. 1973 . 24. 4. 327–344. 10.54302/mausam.v24i4.5165 . 247045331 .
  11. Alexander, George. George, C A. Jambunathan, R. Cyclones and Depressions of 1973 - Bay of Bengal and Arabian Sea. Mausam. 1974 . 25. 3 & 4. 347–362. 10.54302/mausam.v25i3.5240 . 249031839 .
  12. Alexander, George. George, C A. Jambunathan, R. Cyclones and Depressions of 1974 - Bay of Bengal and Arabian Sea. Mausam. 1976 . 27. 2. 113–126. 10.54302/mausam.v27i2.2417 . 246971391 .
  13. Alexander, George. George, C A. Jambunathan, R. Cyclones and Depressions of 1975 - Bay of Bengal and Arabian Sea. Mausam. 1977 . 28. 1. 3–20. 10.54302/mausam.v28i1.2655 . 246968196 .
  14. Alexander, George. George, C A. Jambunathan, R. Cyclones and Depressions in the Indian Seas in 1976. Mausam. 29. 4. 613–628.
  15. Pant, P S. Ramakrishnan, A R. Jambunathan, R. Cyclones and Depressions over the Indian Seas in 1977 . Mausam. 1980 . 31. 3. 337–356. 10.54302/mausam.v31i3.3533 . 246784388 .
  16. Srinivasan, V. Ramakrishnan, A R. Jambunathan, R. Cyclones and Depressions over the Indian Seas in 1978 . Mausam. 31. 4. 495–506. 10.54302/mausam.v31i4.3444 . 246781079 .
  17. Mukherjee, A K. Ramakrishnan, A R. Jambunathan, R. Cyclones and Depressions over the Indian Seas in 1979 . Mausam. 1981 . 32. 2. 115–126. 10.54302/mausam.v32i2.3398 . 246848511 .
  18. Mukherjee, A K. Ramakrishnan, A R. Jambunathan, R. Cyclones and Depressions over Indian Seas in 1981 . Mausam. 34. 1. 1–8. 10.54302/mausam.v34i1.2029 . 246915439 .
  19. Das, Nooton. Rao, M R M. Biswas, N C. Cyclones and Depressions over Indian Seas and the Indian sub-continent during 1987. Mausam. 38. 1. 1–8. 10.54302/mausam.v38i1.2629 . 249004871 .
  20. Das, Nooton. Dessai, D S. Biswas, N C. Cyclones and Depressions over Indian Seas and the Indian sub-continent during 1987. Mausam. 40. 1. 1–8.
  21. Report on Cyclonic Disturbances (Depressions and Tropical Cyclones) over North Indian Ocean in 2017. April 2018. India Meteorological Department. May 17, 2020 .
  22. Report on Cyclonic Disturbances (Depressions and Tropical Cyclones) over North Indian Ocean in 2018. July 2019. India Meteorological Department. May 30, 2020.
  23. India Meteorological Department. July 2019. Very Severe Cyclonic Storm "Vaya" over the Arabian Sea. May 30, 2020.
  24. India Meteorological Department. Very Severe Cyclonic Storm "Hikka" over eastcentral and adjoining northeast Arabian Sea. May 30, 2020.
  25. India Meteorological Department. Very Severe Cyclonic Storm "Bulbul" over the Bay of Bengal. May 30, 2020.
  26. Web site: Khanra. Sujoy. Mandal. Suman. May 29, 2021. Debashis. Konar . Initial Cyclone Yaas damage Rs 20,000 crore, West Bengal CM Mamata Banerjee tells PM Modi. 2021-05-29. The Times of India. en.

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