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 64–89 knots (119–165 km/h ; 74–102 mph ). 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.
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 64–119 kn (119–220 km/h; 74–137 mph). [2] 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 64–89 kn (119–165 km/h; 74–102 mph). [1]
Name | System dates | Sustained wind speeds | Pressure | Areas affected | Deaths | Damage (USD) | Refs |
---|---|---|---|---|---|---|---|
Unnamed | October 31, 1831 | Not Specified | Not Specified | Orissa | 22,000 | [3] | |
Unnamed | October 2 – 5, 1864 | Not Specified | Not Specified | West Bengal | 50,000 | [3] | |
Unnamed | April 28 – May 5, 1966 | Not Specified | Not Specified | [4] | |||
Unnamed | October 8 – 11, 1967 | 155 km/h (100 mph) | 980 hPa (28.94 inHg) | [5] | |||
Unnamed | October 20 – 24, 1967 | 150 km/h (90 mph) | 986 hPa (29.12 inHg) | [5] | |||
Unnamed | December 4 – 8, 1967 | 130 km/h (80 mph) | 988 hPa (29.18 inHg) | [5] | |||
Unnamed | September 29 – October 4, 1968 | 130 km/h (80 mph) | 984 hPa (29.06 inHg) | [6] | |||
Unnamed | November 9 – 15, 1968 | 140 km/h (85 mph) | 970 hPa (28.64 inHg) | [6] | |||
Unnamed | May 2 – 7, 1970 | 150 km/h (90 mph) | 975 hPa (28.79 inHg) | Bangladesh, Myanmar | [7] | ||
Unnamed | October 18 – 22, 1970 | 130 km/h (80 mph) | 980 hPa (28.94 inHg) | Tamil Nadu, West Bengal, Bangladesh | 200-300 | [7] | |
Unnamed | September 27 – October 1, 1971 | 120 km/h (75 mph) | 979 hPa (28.91 inHg) | West Bengal, Bangladesh | [8] | ||
Unnamed | December 14 – 21, 1971 | 130 km/h (80 mph) | 987 hPa (29.15 inHg) | Arabia | [8] | ||
Unnamed | April 7 – 11, 1972 | 150 km/h (90 mph) | 983 hPa (29.03 inHg) | [9] | |||
Unnamed | October 19 – 25, 1972 | 120 km/h (75 mph) | 984 hPa (29.06 inHg) | [9] | |||
Unnamed | November 15 – 23, 1972 | 150 km/h (90 mph) | 985 hPa (29.09 inHg) | [9] | |||
Unnamed | December 1 – 8, 1972 | 140 km/h (85 mph) | 984 hPa (29.06 inHg) | [9] | |||
Pradeep | November 3 – 9, 1973 | 140 km/h (85 mph) | 984 hPa (29.06 inHg) | [10] | |||
Contai | August 13 – 20, 1974 | 140 km/h (85 mph) | 970 hPa (28.64 inHg) | [11] | |||
Unnamed | May 1 – 11, 1975 | 150 km/h (90 mph) | 979 hPa (28.91 inHg) | [12] | |||
Unnamed | May 4 – 8, 1975 | 155 km/h (100 mph) | 976 hPa (28.82 inHg) | [12] | |||
Mahuva | May 29 – June 3, 1976 | 130 km/h (80 mph) | 970 hPa (28.64 inHg) | [13] | |||
Contai | September 8 – 19, 1976 | 130 km/h (80 mph) | 977 hPa (28.85 inHg) | [13] | |||
Machilipatnam | November 3 – 6, 1976 | 120 km/h (75 mph) | 987 hPa (29.15 inHg) | [13] | |||
Unnamed | December 28, 1976 – January 3, 1976 | 150 km/h (90 mph) | 981 hPa (28.97 inHg) | [13] | |||
Unnamed | November 8 – 12, 1977 | 140 km/h (85 mph) | 984 hPa (29.06 inHg) | [14] | |||
Unnamed | May 14 – 17, 1978 | 150 km/h (90 mph) | 965 hPa (28.50 inHg) | [15] | |||
Unnamed | September 18 - 24, 1979 | 130 km/h (80 mph) | 980 hPa (28.94 inHg) | [16] | |||
Unnamed | October 28 - November 3, 1981 | 120 km/h (75 mph) | 983 hPa (29.03 inHg) | [17] | |||
Unnamed | November 16 - 20, 1981 | 120 km/h (75 mph) | 983 hPa (29.03 inHg) | [17] | |||
Unnamed | December 4 - 11, 1981 | 140 km/h (85 mph) | 980 hPa (28.94 inHg) | [17] | |||
BOB 01 | May 21 - 26, 1985 | 120 km/h (75 mph) | Not Specified | [18] [19] | |||
BOB 01 | January 30 - February 4, 1987 | 140 km/h (85 mph) | 970 hPa (28.64 inHg) | [18] [20] | |||
ARB 01 | November 12 - 15, 1993 | 120 km/h (75 mph) | 986 hPa (29.12 inHg) | [18] | |||
ARB 02 | November 15 - 20, 1994 | 120 km/h (75 mph) | 984 hPa (29.06 inHg) | [18] | |||
BOB 07 | November 8 - 9, 1995 | 145 km/h (90 mph) | 978 hPa (28.88 inHg) | [18] | |||
BOB 08 | November 6, 1996 | 145 km/h (90 mph) | 978 hPa (28.88 inHg) | [18] | |||
BOB 09 | December 3 - 4, 1996 | 120 km/h (75 mph) | 984 hPa (29.06 inHg) | [18] | |||
BOB 08 | November 15, 1998 | 145 km/h (90 mph) | 982 hPa (29.00 inHg) | [18] | |||
BOB 09 | November 21 - 22, 1998 | 120 km/h (75 mph) | 984 hPa (29.06 inHg) | [18] | |||
BOB 01 | May 12 - 14, 2003 | 120 km/h (75 mph) | 980 hPa (28.94 inHg) | [18] | |||
Phet | June 2 - 4, 2010 | 155 km/h (100 mph) | 964 hPa (28.47 inHg) | [18] | |||
Thane | December 25 - 31, 2011 | 140 km/h (85 mph) | 969 hPa (28.61 inHg) | [18] | |||
Lehar | November 23 – 28, 2013 | 140 km/h (85 mph) | 980 hPa (28.94 inHg) | Malay Peninsula, Andaman and Nicobar Islands, India | [18] | ||
Vardah | December 6 – 13, 2016 | 130 km/h (80 mph) | 975 hPa (28.79 inHg) | Sumatra, Andaman and Nicobar Islands, Thailand Malaysia, Sri Lanka, India | [18] | ||
Ockhi | November 29 - December 6, 2017 | 155 km/h (100 mph) | 976 hPa (28.82 inHg) | Sri Lanka, South India, Western India, Maldives | 137 | [21] | |
Luban | October 6 – 15, 2018 | 140 km/h (85 mph) | 978 hPa (28.88 inHg) | Yemen, Oman | 14 | [22] | |
Titli | October 8 – 13, 2018 | 150 km/h (90 mph) | 972 hPa (28.70 inHg) | Andhra Pradesh, Odisha, West Bengal, Bangladesh | 85 | [22] | |
Gaja | November 10 – 18, 2018 | 130 km/h (80 mph) | 976 hPa (28.82 inHg) | Andaman Islands, India, Sri Lanka | 46 | [22] | |
Vayu | June 10 – 17, 2019 | 150 km/h (90 mph) | 970 hPa (28.64 inHg) | Maldives, India, Pakistan, Oman | [23] | ||
Hikaa | September 22 – 25, 2019 | 140 km/h (85 mph) | 972 hPa (28.70 inHg) | Western India, Oman, Saudi Arabia, Yemen | [24] | ||
Bulbul | November 5 – 11, 2019 | 140 km/h (85 mph) | 976 hPa (28.82 inHg) | Myanmar, Andaman and Nicobar Islands Eastern India, Bangladesh | [25] | ||
Gati | November 21 – 24, 2020 | 140 km/h (85 mph) | 976 hPa | Socotra, Yemen, Somalia, Djibouti, Ethiopia | 9 | $1 million | |
Nivar | November 23 – 27, 2020 | 120 km/h (75 mph) | 980 hPa | Sri Lanka, India | 14 | $600 million | |
Yaas | May 23 – 28, 2021 | 130 km/h (80 mph) | 972 hPa | Sri Lanka, Andaman and Nicobar Islands, Myanmar, India, Bangladesh | 20 | $2.84 billion | [26] |
Month | Number of storms |
---|---|
January | 1 |
February | 0 |
March | 0 |
April | 1 |
May | 7 |
June | 2 |
July | 0 |
August | 1 |
September | 5 |
October | 7 |
November | 16 |
December | 8 |
Period | Number of storms |
---|---|
1960s | 5 |
1970s | 19 |
1980s | 5 |
1990s | 7 |
2000s | 1 |
2010s | 11 |
2020s | 0 |
In the Indian Ocean north of the equator, tropical cyclones can form throughout the year on either side of India, although most frequently between April and June, and between October and December.
The 1992 North Indian Ocean cyclone season was unofficially the most active year on record for the basin, with 10 tropical storms developing, according to the Joint Typhoon Warning Center (JTWC). There are two main seas in the North Indian Ocean – the Bay of Bengal to the east of the Indian subcontinent – and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the JTWC releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
The 2010 North Indian Ocean cyclone season was the one of the most active tropical cyclone season in the North Indian Ocean since 1998. The season saw 8 depressions and 5 named storms forming in the region.
This is a timeline of the 2009 North Indian Ocean cyclone season, which contains details of when a depression forms, strengthens, weakens, makes landfalls, and dissipates during the 2009 North Indian Ocean cyclone season. It also includes information from post-storm analysis by the Joint Typhoon Warning Center (JTWC), and the India Meteorological Department (IMD) who run the Regional Specialized Meteorological Center in New Delhi, India. RSMC New Delhi's area of responsibility is officially between 45°E and 100E which is east of the Horn of Africa and west of the Malay Peninsula. There are two main seas within the North Indian Ocean, the Arabian Sea and the Bay of Bengal. For storms, these are abbreviated as BOB and ARB by the IMD.
Cyclonic Storm Phyan developed as a tropical disturbance to the southwest of Colombo in Sri Lanka on November 4, 2009. Over the next couple of days, the disturbance gradually developed before weakening as it made landfall on Southern India on November 7. After the disturbance emerged into the Arabian Sea, it rapidly became more of a concern to the India Meteorological Department (IMD) reporting early on November 9 that the disturbance had intensified into a Depression, and designated it as Depression ARB 03 whilst the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert. Later that day, the JTWC designated the system as Cyclone 04A. During the next day, the Depression turned towards the northeast the IMD reported that it had intensified into a Cyclonic Storm and named it as Phyan.
India is a country in the North Indian Ocean that is the most vulnerable to getting hit by tropical cyclones in the basin, from the east or from the west.On average, 2–3 tropical cyclones make landfall in India each year, with about one being a severe tropical cyclone or greater.
The 1961 North Indian Ocean cyclone season had no bounds, but cyclones tend to form between April and December, with peaks in May and November. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
The 1962 North Indian Ocean cyclone season had no bounds, but cyclones tend to form between April and December, with peaks in May and November. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
The 1964 North Indian Ocean cyclone season had no bounds, but cyclones tend to form between April and December, with peaks in May and November. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
The 1963 North Indian Ocean cyclone season had no bounds, but cyclones tend to form between April and December, with peaks in May and November. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. An average of four to six storms form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
The 2019 North Indian Ocean cyclone season was the most active North Indian Ocean cyclone season on record, in terms of cyclonic storms, however the 1992 season was more active according to the Joint Typhoon Warning Center. The season featured 12 depressions, 11 deep depressions, 8 cyclonic storms, 6 severe cyclonic storms, 6 very severe cyclonic storms, 3 extremely severe cyclonic storms, and 1 super cyclonic storm, Kyarr, the first since Cyclone Gonu in 2007. Additionally, it was also the third-costliest season recorded in the North Indian Ocean, only behind the 2020 and 2008 seasons.
The 2020 North Indian Ocean cyclone season was the costliest North Indian Ocean cyclone season on record, mostly due to Cyclone Amphan. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and November, with peaks in late April to May and October to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The season began on May 16 with the designation of Depression BOB 01 in the Bay of Bengal, which later became Amphan. Cyclone Amphan was the strongest storm in the Bay of Bengal in 21 years and would break Nargis of 2008's record as the costliest storm in the North Indian Ocean. The season concluded with the dissipation of Cyclone Burevi on December 5. Overall, the season was slightly above average, seeing the development of five cyclonic storms.
The 2021 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, peaking between May to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The season began on April 2, when a depression designated as BOB 01 was formed in the north Andaman Sea and quickly made landfall in Myanmar. The basin remained quiet for over a month before Cyclone Tauktae formed. It rapidly intensified into an extremely severe cyclonic storm before making landfall in Gujarat, become the strongest storm ever to strike that state since the 1998 Gujarat cyclone. Later that month, BOB 02 formed and later strengthened into Cyclone Yaas. Yaas rapidly intensified into a very severe cyclonic storm before making landfall in northwestern Odisha. The season's strongest tropical cyclone was Cyclone Tauktae, with maximum wind speeds of 185 km/h (115 mph) and a minimum barometric pressure of 950 hPa (28.05 inHg).
The 2022 North Indian Ocean cyclone season is an ongoing event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with the peak from May to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
Severe Cyclonic Storm Asani was a strong tropical cyclone that made landfall in India in May 2022. The third depression and deep depression, and the first named storm of the 2022 North Indian Ocean cyclone season, Asani originated from a depression that the Indian Meteorological Department first monitored on May 7. Conditions rapidly favored development as the system became a deep depression by that day before intensifying to a Cyclonic Storm Asani. On the next day it further intensified and peak to a severe cyclonic storm, before making landfall as a deep depression system over Andhra Pradesh. It degenerated into a well marked low-pressure on May 12.
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