Cyclone Amphan

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Super Cyclonic Storm Amphan
Super cyclonic storm (IMD  scale)
Category 5 tropical cyclone (SSHWS)
Amphan 2020-05-18 0745Z.jpg
Amphan near peak intensity over the Bay of Bengal on May 18
Formed16 May 2020
Dissipated21 May 2020
Highest winds 3-minute sustained:240 km/h (150 mph)
1-minute sustained:260 km/h (160 mph)
Lowest pressure925 hPa (mbar); 27.32 inHg
Fatalities128 total
Damage> $13.4 billion (2020 USD)
(Costliest on record in the North Indian Ocean)
Areas affected Sri Lanka, India (Andaman Islands, Odisha, West Bengal), Bangladesh, Bhutan
Part of the 2020 North Indian Ocean cyclone season

Super Cyclonic Storm Amphan was a powerful and deadly tropical cyclone that caused widespread damage in Eastern India and Bangladesh in May 2020. It was the strongest tropical cyclone to strike the Ganges Delta since Sidr of the 2007 season and the first super cyclonic storm to occur in the Bay of Bengal since the 1999 Odisha cyclone. [1] [2] 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. [3]

Contents

The first tropical cyclone of the 2020 North Indian Ocean cyclone season, Amphan originated from a low-pressure area persisting a couple hundred miles (300 km) east of Colombo, Sri Lanka, on 13 May 2020. Tracking northeastward, the disturbance organized over exceptionally warm sea surface temperatures; the Joint Typhoon Warning Center (JTWC) upgraded the system to a tropical depression on 15 May while the Indian Meteorological Department (IMD) followed suit the following day. On 17 May, Amphan underwent rapid intensification and became an extremely severe cyclonic storm within 12 hours.

On 18 May, at approximately 12:00 UTC, Amphan reached its peak intensity with 3-minute sustained wind speeds of 240 km/h (150 mph), 1-minute sustained wind speeds of 260 km/h (160 mph), and a minimum central barometric pressure of 925 mbar (27.32 inHg). The storm began an eyewall replacement cycle shortly after it reached its peak intensity, but the continued effects of dry air and wind shear disrupted this process and caused Amphan to gradually weaken as it paralleled the eastern coastline of India. On 20 May, between 10:00 and 11:00 UTC, the cyclone made landfall in West Bengal. At the time, the JTWC estimated Amphan's 1-minute sustained winds to be 155 km/h (100 mph). Amphan rapidly weakened once inland and dissipated shortly thereafter.

Coastal areas in Odisha—as well as Kolkata, Hooghly, Howrah, East Midnapur, North 24 Parganas, and South 24 Parganas in West Bengal—were affected by the cyclone. It also caused significant destruction in Bangladesh. [4]

Meteorological history

Map plotting the track and the intensity of the storm, according to the Saffir-Simpson scale Amphan 2020 track.png
Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale

During 13 May 2020, an area of low pressure developed over the Southeastern Bay of Bengal about 1020 km (635 mi) to the southeast of Visakhapatnam in the Indian state of Andhra Pradesh. [5] [6] The area of low pressure was located within a favorable environment for further development with good equator-ward outflow, warm sea surface temperatures, and low vertical wind shear. [6] Over the next couple of days, the system became more marked as it gradually consolidated further, with bands of deep atmospheric convection wrapping into the system's low-level center. [7] [8] During 16 May, the India Meteorological Department (IMD) reported that the area of low pressure had developed into a depression and designated it as BOB 01 while it was located about 1,100 km (685 mi) to the south of Paradip in the Indian state of Odisha. [9]

Moving northwards, the depression continually organised and became a cyclonic storm a few hours later, receiving the name Amphan. Intensification was temporarily impeded as moderate easterly wind shear disrupted the system's cloud pattern. [10] On 17 May, conditions for significant intensification became more conducive as upper-level winds improved. As a result, Amphan underwent rapid intensification into a severe cyclonic storm, with the JTWC assessing an increase in winds from 140 km/h (85 mph) at 12:00 UTC to 215 km/h (130 mph), the equivalent to a Category 4 hurricane on the Saffir-Simpson scale, just six hours later. [11] Furthermore, the IMD upgraded Amphan to an extremely severe cyclonic storm on their cyclone intensity scale. [12] The broad storm was characterized by a cloud shield extending more than 1,110 km (690 mi) and a sharply-outlined 10 nautical mile-wide eye. [13]

Satellite animation of Amphan rapidly intensifying on 17 May. Amphan 1825 190520.gif
Satellite animation of Amphan rapidly intensifying on 17 May.

Early on 18 May, microwave imagery depicted two distinct concentric eyewalls, a telltale sign of an eyewall replacement cycle that is typical for very intense cyclones. [14] Through the day, the effects of wind shear and dry air hampered this internal core change, instead causing the eyewall to erode by late on 18 May. [15] Around 5:30 p.m. IST (12:00 UTC), Amphan made landfall near Bakkhali, West Bengal with winds of 155 km/h (100 mph). [16] As it moved further inland, it rapidly weakened. Just six hours after landfall, the JTWC downgraded it to a Category 1-equivalent cyclone and issued its final warning on the system as it became disorganized. [17] [18]

Preparations

Amphan shortly after being classified as a depression on 16 May 01B 2020-05-16 0450Z.jpg
Amphan shortly after being classified as a depression on 16 May

Amphan's forecast track placed 38.9 million people in India and Bangladesh at risk of exposure to the storm's winds, according to the US Pacific Disaster Center. [19] The formation of the precursor low-pressure system prompted the IMD to issue a cyclonic alert for India's coastline along the Bay of Bengal, advising fishermen not to sail to susceptible locations in the Bay of Bengal from 15–18 May. [20] Fishermen from Sri Lanka were also advised by the national government to return to or remain in the country, [21] and additional maritime traffic from Singapore and other countries were advised to remain clear of Amphan's vicinity. [22] Ships and aircraft of the Indian Coast Guard directed fishing boats to harbour in coordination with the administrations and fisheries departments of Odisha and West Bengal. [23] The Maritime Rescue Coordination Centre in Chennai activated an International Safety Net for the Bay of Bengal. [22] Ports were cleared and their operations suspended along the Bay of Bengal, while ferry service along major routes in Bangladesh was suspended by the Bangladesh Inland Water Transport Corporation. [24] [25] Bangladeshi ports suspended the loading and unloading of goods onboard ships. [26] Smaller vessels in the harbour at Chittagong were moved to safety upstream the Karnaphuli River. [27] Ships were ordered out of some ports, such as the port of Paradip, to avoid damage. [28] Public works departments were called upon by the government of Odisha to ensure infrastructure resiliency; [29] crews and backup systems for electricity and telecommunications were deployed to meet these needs, [30] establishing helplines for emergency response. [31] Rail and vehicular traffic in Odisha and West Bengal was halted or rerouted. [32] The Shramik train service for migrant workers was halted in both states for up to four days, with service expected to be curtailed in the storm's aftermath. [33] [34] [35] [36] Other migrants travelling to Odisha were asked to wait out the storm. [37] AC Express special trains operating routes between New Delhi and Bhubaneswar were diverted to avoid the cyclone's effects. [38] Netaji Subhas Chandra Bose International Airport in Kolkata was closed until 21 May, with planes evacuating or chocked and the airport terminal roof fortified to minimize damage. [39] [40]

Prime Minister Narendra Modi held a meeting with Minister of Home Affairs Amit Shah, Chief Minister of West Bengal Mamata Banerjee, Chief Minister of Odisha Naveen Patnaik and other officials on 18 May to review preparations and evacuation plans. [41] [42] Teams from the Odisha Disaster Rapid Action Force and National Disaster Response Force (NDRF) were pre-positioned across districts in Odisha and West Bengal on 17 May to assist in preparations for Amphan and render aid where necessary, [29] [43] [44] with additional units placed on standby; [45] these units could be readily airlifted to affected areas onboard Indian Air Force transport aircraft. [46] The National Disaster Management Authority advised that these crews and other first responders would also need personal protective equipment and N95 masks due to the ongoing pandemic. [47] A diving team from the Indian Navy was sent to Kolkata to aid relief efforts, [48] with ships from the navy placed on standby for relief operations. [49]

The Bangladesh Cyclone Preparedness Programme and National Disaster Response Coordination Group convened on 18 May to outline preparations for Amphan. [50] Several non-governmental agencies coordinated with the Cyclone Preparedness Programme to support Rohingya refugees at camps in Cox's Bazar during Amphan. [51] The Department of Public Health Engineering distributed sanitation supplies and set up 15 water treatment plants. [52] All 32 Rohingya camps in Cox's Bazar were staffed with relief volunteers. [53] Health services in Bangladesh during the storm were reinforced by 1,933 medical teams distributed around Bangladesh. [54] Fifteen thousand volunteers and 284 medical teams were prepared to render aid around Chittagong. [27] According to Inter-Services Public Relations, 145 disaster management teams from the Bangladesh Armed Forces were placed on standby with special equipment. The Bangladesh Army deployed 71 medical teams and arranged 18,400 packets and relief materials in preparation for Amphan's aftermath. Twenty-five ships were dispatched by the Bangladesh Navy to handle emergency, rescue, and relief operations, with aerial support from the Bangladesh Air Force. [55] The Ministry of Agriculture of Bangladesh advised coastal farmers to harvest all mature paddy fields to mitigate the estimated loss of 12 percent of crop yield. [56] Seven thousand domestic animals were also moved to shelter under the direction of the Ministry of Fisheries and Livestock. [57]

An IMD yellow alert was active for 13 of Kerala's 14 districts on 18 May, [58] while an orange alert was issued by the agency for West Bengal, anticipating extensive damage in six districts. [59] The Bangladesh Meteorological Department issued cyclone danger signal #10, their highest warning, at the Port of Mongla and the Port of Payra on 20 May, signifying "great danger" due to Amphan with winds expected to exceed 89 km/h (55 mph). Signal #10 was also issued for eleven coastal districts, in addition to offshore islands and islands within the Ganges Delta. [60] Flood and landslide warnings were issued by the Disaster Management Centre of Sri Lanka on 19 May. Boats, helicopters, and crews were stationed by the Sri Lanka Air Force and Sri Lanka Navy throughout the island to bolster emergency response. [61] Coastal provinces of Thailand along the Andaman Sea were warned by the Thai Meteorological Department of the threat of heavy rain on 19 May. [62] Storm alerts issued by the Thai Department of Disaster Prevention and Mitigation encompassed 62 provinces, including Bangkok, [63] while warnings for flash floods, high waves, and landslides were issued for 14 provinces in southern Thailand. [64] The National Centre for Hydrology and Meteorology of Bhutan warned of the possibility of flash flooding and landslides in the country. [65] The Bhutanese Department of Disaster Management advised against travelling, particularly in southern Bhutan. [66]

Evacuations

Amphan approaching East India and Bangladesh on 19 May Amphan 2020-05-19 0736Z.jpg
Amphan approaching East India and Bangladesh on 19 May

The government of Odisha directed the magistrates of four districts on 15 May to establish shelter homes for possible evacuees. [67] Odisha Chief Secretary Asit Kumar Tripathy initially identified 403 possible cyclone shelters in areas potentially impacted by Amphan, though 105 served as temporary medical centres for quarantines associated with the concurrent COVID-19 pandemic. [29] Shelters could only be filled to one-third capacity to maintain social distancing guidelines due to the pandemic. [47] [68] Social distancing restrictions in West Bengal reduced evacuation capacity in shelters from 500,000 people to 200,000 people. [69] The Kolkata Municipal Corporation located schools and community centres for possible use as temporary shelters to augment evacuation capacity. [70] [71] At least 1,704 shelters were ultimately established in Odisha. [72] Pandemic constraints on shelters in Bangladesh prompted deputy commissioners in 19  coastal districts to seize educational institutions and mosques for use as shelters. [73] [74] More than 12,000 shelters were opened across Bangladesh, supplied with food and emergency cash from the Bangladeshi Ministry of Disaster Management and Relief and yielding capacity for 5.19 million evacuees. [75] [76] There were 5,767 more shelters in Bangladesh for Amphan than for Cyclone Bulbul, which struck the country in November 2019, due in part to social distancing restrictions. [77]

Approximately 4.2 million people were evacuated in coastal India and Bangladesh, with roughly 2 million from India and 2.2 million from Bangladesh. Most of the evacuations in India occurred in West Bengal. [78] [79] Over a million people were expected to evacuate from areas near the Bangladesh–India border. [80] Around 4,000 personnel from the SDRF oversaw evacuations in India. [81] Evacuations began on 17 May in Jagatsinghpur, beginning with the elderly and pregnant living in thatched homes. [82] Magistrates were directed to begin evacuating residents from vulnerable homes and low-lying areas in Odisha the following day. [83] The Odia government took a more targeted evacuation approach for Amphan than in previous storms where more widespread evacuations were utilized. [84] Odisha had shelter capacity for up 1.1 million evacuees, though only 10 percent was expected to be used. [85] Over 141,000 people were ultimately moved to shelters in coastal Odisha. [49] The government of West Bengal planned to evacuate 200,000 people from their homes by 18 May; [85] nearly 300,000 people evacuated in total from the state, including 200,000 from North 24 Parganas district and more than 40,000 from Sagar Island. [86] [87] [22] The NDRF reported that over 500,000 people evacuated from Odisha and West Bengal. [88] Officials farther inland in Dhanbad and Bokaro Steel City, Jharkhand, were also instructed to move people from susceptible housing to safety. [89] Two million people were expected to evacuate from low-lying areas of Bangladesh on 19 May; [90] Enamur Rahman, the Minister of Disaster Management and Relief, stated that the evacuation for Amphan in Bangladesh was unprecedented in scale. [91] Trawlers were used to evacuate thousands from the sediment islands in the Ganges Delta to the Bangladeshi mainland. [92] Approximately 50,000 people were evacuated from the islands of the Sunderbans. [68]

Impact

Fatalities by country
CountryFatalitiesRef.
Bangladesh 26 [93]
India 98 [94] [95] [96]
Sri Lanka 4 [97] [98]
Total128

Sri Lanka

The cyclone produced heavy rainfall and strong winds in Sri Lanka while intensifying east of the island, affecting some 2,000 people and triggering floods and landslides. [99] [100] Minor flooding occurred along the banks of the Kalu Ganga. [97] Two people were killed as a result of these rains in Ratnapura District, with one killed by a landslide and another by a fallen tree. Landslide-related injuries hospitalized other residents in the area. [61] Two people were killed in Kegalle, where 214 mm (8.4 in) of rain fell in 24 hours. [98] Flash floods in Kottampitiya and Pelmadulla prompted the evacuation of 60 people from homes susceptible to a possible landslide. [61] Over 500 homes were damaged by Amphan, [100] of which 145 were in Polonnaruwa. [101]

India

Eastern India

Damage from Cyclone Amphan in Kolkata Kolkata after Amphan 06.jpg
Damage from Cyclone Amphan in Kolkata

Amphan made landfall near Bakhali in West Bengal at 2:30 p.m. IST on 20 May, [16] buffeting the region with strong winds and heavy rains. [102] Although the extent of fatalities was less than initially feared, the cyclone's effects were nonetheless widespread and deadly. [103] West Bengal, the epicenter of the cyclone's landfall, saw the most widespread damage from Amphan. The storm was considered the strongest to hit the region in over a decade. [1] At least 86 people died in West Bengal; [94] most of the fatalities were due to electrocution or the collapse of homes. [104] The state government estimated that the storm caused at least 1 trillion (US$13.2 billion) in damage and directly affected 70 percent of the state's population. [3] [105] [94] Chief Minister Banerjee described the storm's effects there as worse than that of COVID-19. [49] An estimated storm surge of 5 m (16 ft) inundated a wide swath of coastal communities and communications were severed. The greatest inundations were expected in the Sundarbans, where flooding could extend 15 km (9.3 mi) inland. [106] Embankments in the region were overtaken by the surge, leading to inundation of the islands in the Sundarbans. [107] Bridges linking islands to the Indian mainland were swept away. [108] The cyclone produced sustained winds of 112 km/h (70 mph) and gusts to 190 km/h (120 mph) in West Bengal, damaging homes and uprooting trees and electric poles. [49] Wind gusts along coastal areas were measured up to 150–160 km/h (93–99 mph). [109] In Kolkata, damaging winds up to 133 km/h (83 mph) overturned vehicles and snapped approximately 10,000 trees. [109] [106] [110] [111] The Calcutta Municipal Corporation stated that Amphan toppled over 4,000 electric poles, leaving much of the city without power for over 14 hours. [112] [113] At least 19 people were killed in Kolkata. [111] The storm also triggered widespread flooding around the city. 236 mm of rain was recorded in Kolkata when cyclone amphan struck kolkata with full fury. [111]

Satellite animation of Amphan making landfall over West Bengal on 20 May Cyclone Amphan making landfall.gif
Satellite animation of Amphan making landfall over West Bengal on 20 May

Downed power lines caused power outages across West Bengal, prompting CM Banerjee ordered power supplies to be cut in the two states of 24 Parganas as a precautionary measure. [49] In North 24 Parganas, 2 people were killed and up to 5,500 homes were damaged. [49] Thousands of mud homes were damaged in the neighboring Hooghly district. [106] A million homes were damaged in South 24 Parganas and breached embankments led to the flooding of villages and swaths of cropland. [94] [104] About 26,000 homes were destroyed in Gosaba. Saltwater inundation affected surrounding areas following damage to 19 km (12 mi) of nearby embankments. [111] Across West Bengal, 88,000 hectares (217,000 acres) of rice paddies and 200,000 hectares (500,000 acres) of vegetable and sesame crops were damaged. [104]

Neighboring Odisha saw significant effects, with wind gusts reaching 106 km/h (66 mph) and rainfall up to 197.1 mm (7.76 in) in Paradip. [114] In Bhadrak, rainfall reached 384.6 mm (15.14 in). [96] Approximately 1,167 km (725 mi) of power lines of varying voltages, [115] 126,540 transformers, and 448 electrical substations were affected, leaving 3.4 million without power. Damage to the power grid reached ₹3.2 billion (US$42 million). [116] Four people died in Odisha, two from collapsed objects, one due to drowning, [95] and one from head trauma. [96] Across the ten affected districts in Odisha, 4.4 million people were impacted in some way by the cyclone. At least 500 homes were destroyed and a further 15,000 were damaged. Nearly 4,000 livestock, primarily poultry, died. [115]

Southern India

Rains and strong winds from Amphan swept across many districts in Kerala beginning on May 16. [117] Thunderstorms associated with Amphan caused severe coastal erosion in the Valiyathura suburb of Thiruvananthapuram, damaging roads and destroying homes and threatening to displace over a hundred families from their homes. [118] Strong winds inflicted severe damage in Kottayam district, especially in Vaikom taluk, where homes and temples were impacted and trees and electric poles were downed. [119] The tiled roof of the Vaikom Mahadeva Temple was damaged by these winds. A 1.47 billion (US$19.3 million) damage toll resulted from the destruction of 16 homes and the partial damage of 313 homes. [120] A high school used as a homeless shelter collapsed, causing minor injuries. [119] Tamil Nadu faced some impact from the cyclone. Heavy winds damaged at least 100 boats anchored in the Ramanathapuram district. [121] Coastal erosion from rough seas generated by Amphan led to the collapse of three houses at Bommayarpalayam in Viluppuram district. [122] Roughly 35 acres of banana crops around Gandarvakottai and Aranthangi were destroyed. [123] Northern areas of the state have heatwave-like conditions for a week because Amphan took all of the area's moisture. [124] In Sooradapeta, near Kakinada in Andhra Pradesh, rough seas destroyed 35 homes and damaged several others. [125]

Bangladesh

Satellite image of Amphan making landfall on West Bengal on 20 May Amphan 2020-05-20 0730Z.jpg
Satellite image of Amphan making landfall on West Bengal on 20 May

Officials feared Amphan would be the deadliest storm in Bangladesh since Cyclone Sidr in 2007, which killed about 3,500 people. The IMD predicted a storm surge as high as 3–5 m (10–16 ft). [126] Over a million people were affected by Amphan across nine districts in the divisions of Khulna and Barisal, with the cyclone causing an estimated 11 billion (US$130 million) in damage; [127] the Bangladeshi government predicted that the country could incur a US$1.5 billion damage toll. [126] At least twenty people died in storm-related incidents, including the Cyclone Preparedness Programme leader of unit no. 6 in Dhankhali union Shah Alam, who drowned when his boat capsized. [93] [128] Damaging effects began in Bangladesh prior to the landfall of Amphan as coastal water levels rose. [106] Collapsed embankments led to the inundation of 17 villages across Galachipa, Kalapara, and Rangabali. [93] A ship evacuating residents of a coastal community sank, killing one person. [129] Storm surge destroyed at least 500 homes on an island within the Noakhali District. [106]

Winds in Satkhira topped out at 151 km/h (94 mph). [91] Nearly 220,000 homes were damaged, of which 55,667 were destroyed, rendering an estimated 500,000 people homeless according to the United Nations Office for the Coordination of Humanitarian Affairs. [127] [130] A 2.7-m (9 ft) storm surge breached 150 km (93 mi) of embankments, leading to the inundation of roughly 100 villages. [127] [91] In Purba Durgabati, part of a levee was washed away by floodwaters up to 4 metres (13 ft) high, causing 600 houses to be inundated. [131] Low-lying areas in Barishal were submerged 0.9–1.2 m (3–4 ft) under water. Flooded rivers affected parts of Rangabali and Galachipa upazilas in Patuakhali district and parts of Khulna district. [91] Three hundred shelters in Cox's Bazar were damaged by flooding and landslides. [132] All 65 freshwater ponds in the Sundarbans were inundated by saltwater and numerous kewra trees were uprooted; [127] however, damage to the mangrove forest was less than initially feared. [133] Across 26 districts, approximately 1,100 km (680 mi) of roads and over 200 bridges were damaged. [134]

The Department of Fisheries estimated that 2.17 billion (US$25.7 million) in losses to crab, finfish, and shrimp were sustained by 40,800 farmers due primarily to the flooding of farms. These losses were most significant in Khulna and Barisal. [135] Floods severely damaged or destroyed around 3,000 shrimp and crab farms. [131] An estimated 176,000 hectares (435,000 acres) of farmland were affected by Amphan according to the Ministry of Agriculture, with mango farmers in Sathkhira taking the brunt of the agricultural impacts; [135] the Department of Agricultural Extension estimated that Amphan damaged 16 percent of Bangladesh's annual mango production, [136] while as much as 70 percent of mangoes in Sathkhira were damaged. [135] Boro rice paddies, beans, and betel also sustained significant losses due to Amphan. [135] Amphan left 22 million electricity customers without power. Roughly 2,500 phone towers operated by the Association of Mobile Telecom Operators of Bangladesh were disabled by the cyclone. [137]

Bhutan

The remnants of Amphan produced several days of unsettled weather across Bhutan, with the Tsirang District in particular seeing three days of heavy rain. Landslides and rockfalls across the nation blocked roadways and damaged homes. Flash flooding in Threna damaged crops and prompted the evacuation of five households. Seventeen yaks and horses died across Lingzhi, Naro, and Soe gewogs. [138] Stemming from damage to fibre-optic cables in Kolkata, Bhutan Telecom saw a total loss of service for 17 hours on 20–21 May and TashiCell saw a 60 percent outage. [139] Power outages occurred in Drepong, Gongdu, Jurmey, Kengkhar, and Silambi gewogs. Rainfall proved beneficial for the country's hydroelectric power production with the Mangdechhu hydroelectric plant producing 791.39  MW of power, more than its intended capacity of 720 MW. [140]

Aftermath

On 22 May, Prime Minister Narendra Modi conducted an aerial survey over Kolkata, along with Chief Minister Mamata Banerjee. [141] Modi announced a ₹10 billion (US$132 million) immediate relief package for West Bengal and ₹5 billion (US$66.2 million) in relief for Odisha. [142] [143] In advance, Modi announced that ₹200,000 (US$2,650) would be provided to the next of kin of people who died during the storm, and ₹50,000 (US$660) would be given to each injured person. [142] West Bengal CM Banerjee stated that it would take three to four days to assess the damage. [144] Twenty disaster relief teams were dispatched by the Indian Coast Guard to begin search and rescue operations. [144] Ten teams were sent to West Bengal to aid recovery, in addition to the NDRF teams pre-positioned there before Amphan's passage. [107] Approximately 1,000 ground teams worked to restore infrastructure and services in West Bengal after Amphan, though only 25–30 percent of workers were staffed due to the COVID-19 pandemic. [94] The resulting slow restoration of power sparked protests across West Bengal aimed primarily at electricity company CESC. [145] Some restoration efforts were disrupted by these protests. [146] The Home Department of West Bengal requested additional crews from railway and port interest, while five brigades from the Indian Army were deployed in Kolkata and the 24 Parganas districts to support recovery efforts. [107] [145] Additional assistance was requested from Jharkland and Odisha. [94] The government of Odisha sent 500 members of its disaster rapid action force and fire service to West Bengal. [107] Odisha Chief Minister Naveen Patnaik performed an aerial survey of the damage in his state following Amphan. [37]

The European Union stated that it would initially provide €500,000 (US$545,000) for those affected by the storm in India. [107]

The Ministry of Disaster Management and Relief in Bangladesh approved a ৳2.5–3 billion (US$29–35 million) budget to repair embankments damaged by Amphan. Another ৳1.5 billion (US$18 million) was distributed to each district heavily impacted by the storm, along with 500 bundles of corrugated tin sheets. [147] International development organisation BRAC disbursed ৳30 million (US$350,000) to low-income families in 10  upazilas, with ৳5,000 (US$60) per family. The organisation also distributed gloves, masks, and sanitizers to Bagerhat, Khulna, and Satkhira districts. [148]

See also

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Cyclone Sidr North Indian cyclone in 2007

Cyclone Sidr was a tropical cyclone that resulted in one of the worst natural disasters in Bangladesh. The fourth named 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.

2000 North Indian Ocean cyclone season cyclone season in the North Indian ocean

The 2000 North Indian Ocean cyclone season was fairly quiet compared to its predecessor, with all of the activity originating in the Bay of Bengal. The basin comprises the Indian Ocean north of the equator, with warnings issued by the India Meteorological Department (IMD) in New Delhi. There were six depressions throughout the year, of which five intensified into cyclonic storms – tropical cyclones with winds of 65 mph (40 km/h) sustained over 3 minutes. Two of the storms strengthened into a very severe cyclonic storm, which has winds of at least 120 km/h (75 mph), equivalent to a minimal hurricane. The Joint Typhoon Warning Center (JTWC) also tracked storms in the basin on an unofficial basis, estimating winds sustained over 1 minute.

1990 North Indian Ocean cyclone season cyclone season in the North Indian ocean

The 1990 North Indian Ocean cyclone season featured a below average total of twelve cyclonic disturbances and one of the most intense tropical cyclones in the basin on record. During the season the systems were primarily monitored by the India Meteorological Department, while other warning centres such as the United States Joint Typhoon Warning Center also monitored the area. During the season, there were at least 1,577 deaths, while the systems caused over US$693 million in damages. The most significant system was the 1990 Andhra Pradesh cyclone, which was the most intense, damaging, and the deadliest system of the season.

Cyclone Bijli North Indian cyclone in 2009

Cyclone 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.

Cyclone Aila North Indian cyclone in 2009

Cyclone Aila was the second named tropical cyclone of the 2009 North Indian Ocean cyclone season. Warned by both the Regional Specialized Meteorological Center (RMSC) and Joint Typhoon Warning Center (JTWC), Aila formed over a disturbance over the Bay of Bengal on May 23, 2009 and started to intensify and organize reaching sustained wind speeds of 110 kmh (70 mph). It was the worst natural disaster to affect Bangladesh since Cyclone Sidr in November 2007. A relatively strong tropical cyclone, it caused extensive damage in India and Bangladesh.

2002 West Bengal cyclone North Indian cyclone in 2002

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 (65 mph). After moving inland, it rapidly weakened and dissipated over Bangladesh on November 12.

2013 North Indian Ocean cyclone season cyclone season in the North Indian ocean

The 2013 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones formed in the North Indian Ocean and Arabian Sea. The season had no official bounds, but cyclones typically formed between May and December, with the peak from October to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.

Cyclone Roanu North Indian cyclone in 2016

Cyclonic Storm Roanu was a relatively weak tropical cyclone that caused severe flooding in Sri Lanka and Bangladesh during May 2016. It is the first tropical cyclone of the annual cyclone season. Roanu originated from a low pressure area that formed south of Sri Lanka, which gradually drifted north and intensified into a cyclonic storm on 19 May. However, wind shear and land interaction caused it to weaken slightly, before reintensifying as it accelerated towards the coast of Bangladesh.

2017 North Indian Ocean cyclone season cyclone season in the North Indian Ocean

The 2017 North Indian Ocean cyclone season was a below average 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.

2018 North Indian Ocean cyclone season cyclone season in the North Indian Ocean

The 2018 North Indian Ocean cyclone season was the most active North Indian Ocean cyclone season since 1992, with the formation of fourteen depressions and seven cyclones. 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.

2020 North Indian Ocean cyclone season Storm season

The 2020 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 November, with peaks in May and October. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.

Cyclone Fani North Indian cyclone in 2019

Extremely Severe Cyclonic Storm Fani was the strongest tropical cyclone to strike the Indian state of Odisha since the 1999 Odisha cyclone. The second named storm and the first severe cyclonic storm of the 2019 North Indian Ocean cyclone season, Fani originated from a tropical depression that formed west of Sumatra in the Indian Ocean on 26 April. Vertical wind shear at first hindered the storm's development, but conditions became more favorable for Fani on 30 April. Fani rapidly intensified into an extremely severe cyclonic storm and reached its peak intensity on 2 May with 1-minute sustained winds equivalent to a high-end Category 4 major hurricane. Fani weakened before making its landfall, and its convective structure rapidly degraded thereafter, degenerating into a remnant low on 4 May, and dissipating on the next day.

Cyclone Bulbul North Indian cyclone in 2019

Very Severe Cyclonic Storm Bulbul was a strong and very damaging tropical cyclone which struck the Indian state of West Bengal as well as Bangladesh in November 2019, causing storm surge, heavy rains, and flash floods across the areas. After crossing the Indochinese Peninsula, Severe Tropical Storm Matmo's remnants entered the Andaman Sea. It began to organize over the southern Bay of Bengal in the beginning of November, then it slowly intensified into a cyclonic storm as it moved north. In addition, it is only the second to make it to hurricane strength, the first being in 1960.

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