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Present day Bangladesh, due to its unique geographic location, suffers from devastating tropical cyclones frequently. The funnel-shaped northern portion of the Bay of Bengal amplifies the storm surge of landfalling tropical cyclones, affecting thousands of people. Some of the most devastating natural disasters in recorded history with high casualties were tropical cyclones that hit the region now comprising present-day Bangladesh. Among them, the 1970 Bhola cyclone alone claimed approximately 300,000 to 500,000 lives, making it the deadliest tropical cyclone on record.
Tropical cyclones affecting Bangladesh have killed about 1.54 million people in the Bengal region.
Bangladesh Space Research and Remote Sensing Organisation (SPARRSO), a government agency under the Ministry of Defence [1] provides storm predictions and early warnings using feeds from NASA and NOAA's satellites. The warnings are usually given in a scale of 10, with 10 being used for the deadliest storms.
A detailed program for storm prevention was outlined by the government following the cyclone of 1991. A Comprehensive Cyclone Preparedness Programme (CPP) is jointly planned, operated, and managed by the Ministry of Disaster Management and Relief and the Bangladesh Red Crescent Society; a volunteer force of more than 32,000 are trained to help in warning and evacuation in the coastal areas. [2] Around 2,500 cyclone shelters have been constructed in the coastal regions. The shelters are built on elevated platforms and serve the dual role of schools or community centers during normal weather. In Patenga, Chittagong, the coast has been heavily protected with concrete levees. Also, afforestation has been initiated in the coastal regions to create a green belt.
SL. No. | Date/Year | Type of Disturbance | Deaths | Relevant Information | Reference/Source of Information |
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1. | 1582 AD (Date and month N/A) | Severe Cyclonic Storm with a core of hurricane winds | ~200,000 killed | Coast: The cyclone crossed the coast of Backerganj (Sarkar Bala). Loss and damage: People killed = about 200,000 killed. The destruction was reported to have been caused by a storm wave. According to Banglapedia, a five-hour hurricane and thunderstorm destroyed houses and boats in the coast near Bakerganj (presently in Barisal and Patuakhali). [2] Only Hindu temples with a strong foundation were spared. |
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2. | 1585 (Date and month N/A) | N/A | A tropical storm hit the eastern side of Bakerganj (now Barisal) near the mouth of the Meghna River estuary, causing devastation of crops. Casualty: unknown. |
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3. | 1699 (Date and month N/A) | Severe Cyclonic Storm | ~50,000 killed | Coast: The cyclone crossed the Sundarbans coast Loss and damage: Other information is not available. |
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4. | 1760 (Date and month N/A) | Severe Cyclonic Storm | Coast: The cyclone crossed the Sundarbans coast Loss and damage: N/A. The whole area was almost damaged. Other information is not available. |
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5. | 1765 (Date and month N/A) | Severe Cyclonic Storm | Coast: The cyclone crossed Chittagong coast Loss and damage: N/A. The whole area was destroyed. Other information is not available. |
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6. | 1767 (Date and month N/A) | Severe Cyclonic Storm | 30,000 | Coast: The cyclone crossed Backerganj (Barisal) coast. Surge height: 13.03 m (43 ft) Loss and damage: People killed: 30,000. Other information is not available. |
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7. | May–June 1797 (exact date N/A) | Severe Cyclonic Storm with a core of hurricane winds | Coast: The cyclone crossed Chittagong coast Loss and damage: Every house in the area was destroyed. Two ships were sunk in Chittagong Port. Other information is not available. |
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8. | June 1822 (Actual date N/A) | Severe Cyclonic Storm with a core of hurricane winds | 50,000 | Coast: The cyclone crossed the coast of Backerganj (Barisal), Sarkar Bala. Loss and damage: People killed = 50,000. Cattle killed = 100,000. Storm wave swept away the collectorate records. Other information is not available. |
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9. | 2 June 1823 | Cyclonic Storm | Coast: The cyclone crossed Chittagong coast Other information is not available. |
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10. | 8 June 1824 | Heavy Storm (Severe Cyclonic Storm) | Coast: The cyclone crossed Chittagong coast Other information is not available. |
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11. | 31 October 1831 | Severe Cyclonic Storm | 22,000 | Coast: The cyclone crossed Barisal coast (Grazed the Balasore-Orissa coast) Surge height: 2.12–4.55 m (7–15 ft) Loss and damage: People killed = 22,000 (along the coast of India and Bengal) Cattle killed > 50,000 Other information is not available. |
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12. | 3–5 June 1839 | Cyclonic Storm | Coast: Crossed Head Bay (Bengal coast) Other information is not available. |
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13. | 19–21 September 1839 | Cyclonic Storm | Coast: The storm passed north across Sundarbans coast between Calcutta and Barisal. Other information is not available. |
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14. | 11 May 1844 | Cyclonic Storm (Gale) | Coast: Crossed Noakhali and Chittagong coast. Other information is not available. |
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1847 | Cyclonic storm | ~75,000 killed | Various locations in Bengal | Dipankar C. Patnaik & N. Sivagnanam (November 2007). "DISASTER VULNERABILITY OF COASTAL STATES: A Short Case Study of Orissa, India". Social Science Research Network. p. 4. SSRN 1074845. Missing or empty | |
15. | 12–13 May 1849 | Cyclonic Storm (Gale) | Coast: The cyclone crossed Chittagong coast Other information is not available. |
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16. | 23–28 April 1850 | Cyclonic Storm | Formation: Formed over West Nicobars. Coast: It moved north to Bengal from West Nicobars. Other information is not available. |
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17. | 12–15 May 1852 | Cyclonic Storm | Formation: Formed near 15°N. Coast: It moved northward and crossed the Sundarbans coast; the center passed 39 miles (63 km) east of Calcutta Other information is not available. |
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1864 | Kolkata Cyclone | More than 60,000 Bengalis were killed in Kolkata [3] | Kolkata and Bengal | Most houses collapsed and more than 60,000 Bengali children were killed due to severe head injuries in Kolkata [4] Most houses collapsed and more than 60,000 Bengali children were killed in Kolkata due to severe head injuries in Kolkata [5] Most houses collapsed and more than 60,000 Bengalis were killed due to severe head injuries in Kolkata [6] Most houses collapsed and more and 60,000 Indians were killed due to severe head injuries in Kolkata [7] Most houses collapsed and more and 60,000 Indian children were killed due to severe head injuries in Kolkata [8] | |
18. | 13–17 May 1869 | Cyclonic Storm | The storm moved northwestward from Cape Negrais to Bengal and crossed the Bengal coast Other information is not available. |
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19. | 5–10 June 1869 | Cyclonic Storm | Coast: From the North Bay the cyclone passed over Bengal. Other information is not available. |
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20. | October 1872 (Date was not available) | Cyclonic Storm | Coast: The cyclone hit the coast of Cox's Bazar Other information is not available. |
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21. | 29 October – 1 November 1876 | Severe Cyclonic Storm with a core of hurricane winds. | ~200,000 killed | Coast: The cyclone crossed the coast of Backerganj (present Barisal) near Meghna estuary. Maximum wind: 220 km/h (119 knots) Surge height: 3–13.6 m (10–45 ft) According to Banglapedia, a cyclone with a storm-surge of 12.2 metres (40 ft) hit Meghna River estuary near Chittagong, Barisal, and Noakhali. [2] Casualty: about 200,000. The storm also caused epidemic and famine, and vast property damage. |
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22. | 24 October 1897 | Cyclonic Storm | 14,000 | Coast:Kutubdia island near Chittagong. Casualty: 14,000. The resulting epidemic of Cholera killed another 18,000 | The Mercury (Hobart, Tas. : 1860 - 1954) [9] --- |
23. | May 1898 (Date N/A) | Tropical cyclone with storm surge | Coast:Teknaf Casualty: unknown | --- | |
24. | November 1904 (Date N/A) | Cyclonic storm | 143 | Coast:Sonadia 143 killed and fishing fleet wrecked. | --- |
25. | 16 October 1909 | Cyclonic Storm | 698 | Coast:Khulna Casualty: 698 people and 70,654 cattle. | --- |
26. | October 1913 (Actual Date N/A) | Cyclonic Storm | 500 | Coast:Muktagachha upazila (Mymensingh District) A tropical cyclone, having moved inland destroyed villages. Casualty: 500 people. | --- |
27. | 24 September 1917 | Cyclonic Storm | 432 | Coast:Khulna Casualty: 432 people and 28,029 cattle. | --- |
28. | May 1941 (Date N/A) | Cyclonic Storm | Coast:Eastern Meghna River estuary Casualty: unknown. | --- | |
29. | October 1942 (date N/A) | Cyclonic Storm | Coast:The Sundarbans Casualty: unknown. | --- | |
30. | 17–19 May 1948 | Cyclonic Storm | 1,200 | Coast:Deltan between Chittagong and Noakhali Casualty: approximately 1,200 people and 20,000 cattle. | --- |
31. | 16–19 May 1958 | Cyclonic Storm | 870 | Coast:East and West Meghna River estuary, east of Barisal and Noakhali Casualty: 870 people and 14,500. Also standing crops were destroyed. | --- |
32. | 21–24 October 1958 | Cyclonic Storm | Coast:Chittagong Casualty:Approx. 100,000 families were rendered homeless. | --- | |
33. | 9–10 October 1960 | Severe Cyclonic Storm | Coast:Eastern Meghna River estuary near Noakhali, Bakerganj, Faridpur and Patuakhali. Maximum Wind:201 km/hour Maximum Surge: 3.05 metres Casualty: 3,000 people. Other effects: 62,725 houses destroyed. Crops on 94,000 acres (380 km2) of land were destroyed | --- | |
34. | 30–31 October 1960 | Severe Cyclonic Storm | Coast:Chittagong, Noakhali, Bakerganj, Faridpur, Patuakhali and eastern Meghna estuary Maximum Wind:210 km/h Surge: 4.5–6.1 m Casualty: about 10,000 people, 27,793 cattle . Losses: 568,161 houses destroyed (including 70% houses in Hatiya). Also, two large ocean-going ships ran aground in the shore, and 5–7 vessels capsized in Karnaphuli River. | --- | |
35. | 9 May 1961 | Severe Cyclonic Storm | 11,468 | Coast:Bagerhat and Khulna Maximum Wind:161 km/h Surge height:2.44-3.05 m Casualty: 11,468 people (mostly in Char Alexander), 25,000 cattle. Damages: The railway tracks between Noakhali and Harinarayanpur were damaged. | --- |
36. | 26–30 October 1962 | Severe Cyclonic Storm | Coast:Feni Maximum Wind:161 km/h Surge height:2.5-3.0 m Casualty: about 1,000 people, many domestic cattle. | --- | |
37. | 28–29 May 1963 | Severe Cyclonic Storm | Coast:Chittagong, Noakhali, Cox's Bazar and coastal islands of Sandwip, Kutubdia, Hatiya and Maheshkhali. Maximum Wind:203 km/h (164 km/h at Cox's Bazar) Surge height:4.3-5.2 m Casualty: 11,520 people, 32,617 cattle. Damages: 376,332 houses, 4,787 boats, and standing crops. | --- | |
38. | 11–12 May 1965 | Cyclonic Storm | 19,279 | Coast:Barisal and Bakerganj Maximum Wind:162 km/h Surge height:3.7 m Casualty:19,279 people (out of that, 16,456 in Barisal). | --- |
39. | 14–15 December 1965 | Cyclonic Storm | Coast: near Cox's Bazar and Patuakhali Maximum Windspeed:210 km/h at Cox's Bazar Surge height:4.7-6.1 m Casualty 873 people. Damage: 40,000 salt beds destroyed | --- | |
40. | 1 October 1966 | Cyclonic Storm | 850 | Coast:Sandwip, Bakerganj, Khulna, Chittagong, Noakhali and Comilla Surge height:4.7-9.1 m Maximum Wind:146 km/h Total people affected: 1.5 million people. Casualty: 850 people, 65,000 cattle. | --- |
41. | 7-13 November: The 1970 Bhola cyclone | Extremely severe Cyclonic storm | 500,000+ | Coast:entire coast of Bangladesh (then East Pakistan) Most affected were Chittagong, Barguna, Khepupara, Patuakhali, north of Char Burhanuddin, Char Tazumuddin and south of Maijdi, Haringhata. The official death toll was 500,000 but the number is likely to be higher. Damages include destruction of approximately 20,000 fishing boats, and also property and crops. Total loss of cattle reached more than one million. More than 400,000 houses and 3,500 educational institutions were destroyed. Maximum Wind:222 km/h Maximum Surge:10.6 m. | --- |
42. | 5–6 November 1971 | Cyclonic Storm | Coast:Coastal areas of Chittagong Casualty:unknown | --- | |
43. | 28–30 November 1971 | Cyclonic Storm | Coast:near the Sundarbans Wind Speed:97–113 km/h Surge height:1 m Effect:Low-lying areas of Khulna town inundated | --- | |
44. | 6–9 December 1973 | Cyclonic Storm | Coast:near the Sundarbans Coastal areas near Patuakhali and nearby islands were submerged under the tidal bore. | --- | |
45. | 13–15 August 1974 | Cyclonic Storm | 600 | Coast:Khulna Maximum Wind:80.5 km/h Casualty:600 people. | --- |
46. | 24–28 November 1974 | Cyclonic Storm | 200 | Coast:near Cox's Bazar and Chittagong Maximum Wind:161 km/h Surge height:2.8-5.2 m Casualty: 200 people, 1000 cattle. Damages: 2,300 houses destroyed. | --- |
This is a partial list of the tropical cyclones in Bangladesh or the historical region of Bengal of pre-partitioned India in general. Some of the years and dates may be slightly incorrect. Most of the figures have been taken from Banglapedia. [2]
The 1991 Bangladesh cyclone was among the deadliest tropical cyclones in recorded history. It was also one of the most powerful cyclones in the Indian Ocean. Forming out of a large area of convection over the Bay of Bengal on April 24, the tropical cyclone initially developed gradually while meandering over the southern Bay of Bengal. On April 28, the storm began to accelerate northeastwards under the influence of the southwesterlies, and rapidly intensified to super cyclonic storm strength near the coast of Bangladesh on April 29. After making landfall in the Chittagong district of southeastern Bangladesh with winds of around 250 km/h (155 mph), the cyclone rapidly weakened as it moved through northeastern India, degenerating into a remnant low over the Yunnan province in western China.
The years before 1890 featured the pre-1890 North Indian Ocean cyclone seasons. Each season was an event in the annual cycle of tropical cyclone formation. The North Indian tropical cyclone season has no bounds, but they tend to form between April and December, peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. Below are the most significant cyclones in the time period. Because much of the North Indian coastline is near sea level and prone to flooding, these cyclones can easily kill many with storm surge and flooding. These cyclones are among the deadliest on earth in terms of numbers killed.
Cyclonic Storm Akash was the first named tropical cyclone of the 2007 North Indian Ocean cyclone season. Warned by both India Meteorological Department (IMD) and Joint Typhoon Warning Center (JTWC), it formed from an area of disturbed weather on the Bay of Bengal on May 12, and gradually organized as it drifted northward. An eye began to develop as it approached land, and after reaching peak 3-min sustained winds of 85 km/h (55 mph) it struck about 115 km (71 mi) south of Chittagong in Bangladesh. Akash rapidly weakened over land, and advisories were discontinued on May 15.
The Great Backerganj Cyclone of 1876 was one of the deadliest tropical cyclones in history. It hit the coast of Backerganj, Bengal Presidency, British India, killing about 200,000 people, half of whom were drowned by the storm surge, while the rest died from the subsequent famine.
Extremely Severe Cyclonic Storm Sidr was a tropical cyclone that resulted in one of the worst natural disasters in Bangladesh. The fourth named and the deadliest storm of the 2007 North Indian Ocean cyclone season, Sidr formed in the central Bay of Bengal, and quickly strengthened to reach peak 1-minute sustained winds of 260 km/h (160 mph), making it a Category-5 equivalent tropical cyclone on the Saffir–Simpson scale. The storm eventually made landfall in Bangladesh on November 15, 2007, causing large-scale evacuations. At least 3,447 deaths have been blamed on the storm, with some estimates reaching 15,000.
The 1995 North Indian Ocean cyclone season was below-average and was primarily confined to the autumn months, with the exception of three short-lived deep depressions in May. There were eight depressions in the basin, which is Indian Ocean north of the equator. The basin is subdivided between the Bay of Bengal and the Arabian Sea on the east and west coasts of India, respectively. Storms were tracked by the India Meteorological Department (IMD), which is the basin's Regional Specialized Meteorological Center, as well as the American-based Joint Typhoon Warning Center (JTWC) on an unofficial basis.
Cyclonic Storm Bijli, was the first tropical cyclone to form during the 2009 North Indian Ocean cyclone season. Bijli formed from an area of Low Pressure on April 14. Later that evening, RSMC New Delhi upgraded the low-pressure area to a Depression and designated it as BOB 01. The Joint Typhoon Warning Center (JTWC) then issued a Tropical Cyclone Formation Alert for the system and soon after designated it as Tropical Depression 01B. On the evening of April 15, both RSMC New Delhi and the JTWC reported that the system had intensified into a tropical storm, with the former naming it Bilji. Soon after, Bilji reached its peak intensity as it approached the coast of Bangladesh. However, on the morning of April 17, Bijli weakened to a deep depression due to land interaction, before making landfall just south of Chittagong. The remnants of Bilji continued to weaken as they tracked across northern Myanmar, before RSMC New Delhi issued their last advisory on April 18. The word Bijli refers to lightning in Hindi.
The May 1997 Bangladesh cyclone was a powerful and deadly storm that caused widespread damage and death throughout Bangladesh. Originating from a near-equatorial trough on May 15, 1997, the cyclone tracked in a general northward direction throughout its existence. The system gradually intensified over the following days, reaching the equivalent of a Category 1 hurricane on the Saffir–Simpson hurricane scale by May 17. The following day, the storm attained its peak intensity with winds of 215 km/h (135 mph) according to the JTWC and 165 km/h (105 mph) according to the IMD along with a barometric pressure of 964 mbar. On May 19, the cyclone made landfall near Chittagong, Bangladesh before rapidly dissipating the next day.
India is a country in the north of 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 2002 West Bengal cyclone was a deadly tropical cyclone that affected India and Bangladesh in November 2002. The sixth tropical cyclone and fourth cyclonic storm of the 2002 North Indian Ocean cyclone season, it developed in the Bay of Bengal northeast of Sri Lanka on November 10, as a tropical depression. After tracking northeast, the system strengthened into a cyclonic storm on November 11, as maximum sustained winds exceeded 65 km/h (40 mph). On November 12, it further intensified into a severe cyclonic storm. Later that day, the storm made landfall on Sagar Island in West Bengal with winds of 100 km/h (60 mph). After moving inland, it rapidly weakened and dissipated over Bangladesh on November 12.
Cyclonic Storm Viyaru, operationally known as Cyclonic Storm Mahasen, was a relatively weak tropical cyclone that caused loss of life across six countries in Southern and Southeastern Asia. Originating from an area of low pressure over the southern Bay of Bengal in early May 2013, Viyaru slowly consolidated into a depression on May 10. The depression gained forward momentum and attained gale-force winds on May 11 and was designated as Cyclonic Storm Viyaru, the first named storm of the season. Owing to adverse atmospheric conditions, the depression struggled to maintain organized convection as it moved closer to eastern India. On May 14, the exposed circulation of Viyaru turned northeastward. The following day, conditions again allowed for the storm to intensify. Early on May 16, the cyclone attained its peak intensity with winds of 85 km/h (55 mph) and a barometric pressure of 990 mbar. Shortly thereafter Viyaru made landfall near Chittagong, Bangladesh. On May 17, it moved over the eastern Indian state of Nagaland.
Extremely Severe Cyclonic Storm Forrest, also referred to as Tropical Storm Forrest while in the western Pacific basin before its Thai crossover, was a powerful tropical cyclone that prompted the evacuation of 600,000 people in Bangladesh in late November 1992. Originating from an area of disturbed weather near the Caroline Islands on November 9, Forrest was classified as a tropical depression three days later over the South China Sea. Tracking generally west, the system steadily organized into a tropical storm, passing Vietnam to the south, before striking Thailand along the Malay Peninsula on November 15. Once over the Bay of Bengal, Forrest turned northward on November 17 and significantly intensified. It reached its peak intensity on November 20 as a Category 4-equivalent cyclone on the Saffir–Simpson hurricane scale with winds of 230 km/h (140 mph). Hostile environmental conditions soon affected the cyclone as it turned abruptly east-northeastward. Forrest made landfall in northwestern Myanmar as a weakening system on November 21 before dissipating early the next day.
The 1988 Bangladesh cyclone was one of the worst tropical cyclones in Bangladesh history. Striking in November 1988, the tropical system exacerbated the catastrophic damage from what was then considered the worst floods in Bangladesh's history. The tropical cyclone originated from a disturbance that developed within the Strait of Malacca on November 21. Tracking slowly westward, the initial tropical depression reached tropical storm status in the Andaman Sea. On November 26, the storm reached an intensity equivalent to that of a modern-day severe cyclonic storm and subsequently turned northward. Gradually intensifying as it had previously, the tropical cyclone reached peak intensity with winds of 125 mph (201 km/h) as it was making landfall near the Bangladesh–India border on November 29. Although the storm retained strong winds well inland, it was last monitored over central Bangladesh as a moderate cyclonic storm-equivalent on November 30.
The 2017 North Indian Ocean cyclone season was a below average yet deadly season in the annual cycle of tropical cyclone formation. This season produced only three named storms, of which one only intensified into a very severe cyclonic storm. The North Indian Ocean cyclone season has no official bounds but cyclones tend to form between April and December with the two peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The season began with the formation Cyclone Maarutha on April 15 and ended with the dissipation of a deep depression on December 9.
Severe Cyclonic Storm Mora was a moderate but deadly tropical cyclone that caused widespread devastation and severe flooding in Sri Lanka, Andaman and Nicobar Islands, Bangladesh, Myanmar and Northeast India in May 2017. The second named storm of the 2017 annual cyclone season, Mora developed from an area of low pressure over the southeastern Bay of Bengal on May 28. Mora reached peak strength with maximum sustained winds of 110 km/h (70 mph). The cyclone made landfall near Chittagong on the morning of May 30 and steadily weakened, dissipating early in the morning on May 31. Across its path, Mora dropped a large amount of rain, including 225mm of rainfall in Chittagong and northeast India. The storm is estimated to have caused damages nearing US$300 million.
The 1994 Bangladesh cyclone was a powerful tropical cyclone in the Bay of Bengal. The cyclone closely followed the path, strength, and time of year of a deadly cyclone in 1991 that killed more than 138,000 people. The 1994 cyclone formed on April 29 as a depression, which organized and intensified significantly over the subsequent few days. On May 2, the cyclone attained winds of 215 km/h (135 mph), according to the India Meteorological Department (IMD). That day, the storm made landfall in southeastern Bangladesh, and rapidly weakened over land, before dissipating on May 3.
Severe Tropical Storm Matmo and Very Severe Cyclonic Storm Bulbul were a pair of destructive tropical cyclones that tracked in the Western Pacific Ocean and the North Indian Ocean in October and November 2019 respectively, killing 43 people and inflicting about US$3.537 billion in damage. Matmo was the 41st tropical depression and the 22nd named storm of the 2019 Pacific typhoon season, while Bulbul was the 9th depression and the 7th named storm of the 2019 North Indian Ocean cyclone season. The cyclone formed on October 28 in the South China Sea and intensified into Tropical Storm Matmo, as named by the Japan Meteorological Agency (JMA). On October 30, the storm made landfall in central Vietnam, causing flooding. Matmo weakened while moving westward across Mainland Southeast Asia, before degenerating into a remnant low later that day. The remnants of Matmo emerged into the Bay of Bengal, redeveloping into a depression on November 5. Late the next day, it strengthened into a cyclonic storm, renamed Bulbul by the India Meteorological Department (IMD), although the JTWC continued to refer to it as Matmo. The storm peaked on November 8, with maximum sustained winds 140 km/h (85 mph) estimated by the IMD. On November 9, the cyclone made its final landfall in the eastern Indian state of West Bengal, and around that time the storm turned to the northeast, moving into Bangladesh. The system degenerated into a remnant low two days later, over northeastern India.
Super Cyclonic Storm Amphan was an extremely powerful and catastrophic tropical cyclone that caused widespread damage in Eastern India, specifically in West Bengal and Odisha, and in Bangladesh, in May 2020. It was the strongest tropical cyclone to strike the Ganges Delta. It was a rare cyclone that lashed northern Bangladesh from Rajshahi to Rangpur in the early hours of 21 May with strong winds. It caused severe damage to mango production of Rajshahi and Rangpur. It was also the fourth super cyclone that hit West Bengal and Kolkata since 2015 as well as being one of the strongest storms to impact the area. Causing over US$13 billion of damage, Amphan is also the costliest cyclone ever recorded in the North Indian Ocean, surpassing the record held by Cyclone Nargis of 2008.
Very Severe Cyclonic Storm Yaas was a relatively strong and very damaging tropical cyclone that made landfall in Odisha and brought significant impacts to West Bengal during late May 2021. The second cyclonic storm, second severe cyclonic storm, and second very severe cyclonic storm of the 2021 North Indian Ocean cyclone season, Yaas formed from a tropical disturbance that the Indian Meteorological Department first monitored on May 23. Conditions in the basin favored development as the system became a deep depression later that day, before intensifying into a cyclonic storm on the next day, receiving the name Yaas. The system further intensified as it turned to the northeast, becoming a severe cyclonic storm on May 24 despite moderate wind shear. Marginally favorable conditions further continued as Yaas accelerated northeastward, strengthening to a Category 1-equivalent tropical cyclone and to a very severe cyclonic storm on May 25. Yaas crossed the northern Odisha coast around 20 km south of Balasore at its peak intensity as a very severe cyclonic storm on May 26. Upon landfall, the JTWC and IMD issued their final advisories as Yaas further weakened inland while turning north-northwestwards.
Very Severe Cyclonic Storm Hamoon was a moderately strong tropical cyclone that affected Bangladesh, India, and Myammar during October 2023. The fourth named storm of the 2023 North Indian Ocean cyclone season, Hamoon formed from a low-pressure area over the west-central Bay of Bengal on 21 October. Initially slowly developing, after it entered an area favorable for development, it rapidly intensified, peaking as a very severe cyclonic storm on 24 October. However, soon after, Hamoon weakened due to wind shear, later making landfall in Bangladesh as a severe cyclonic storm. Once inland, Hamoon degenerated into a low-pressure area, last being noted on 26 October.