tropical cyclone in bangladesh

Bangladesh frequently suffers from tropical cyclones possibly due to its unique location. Cyclone Aila lashed into 15 offshore districts of south-western part of Bangladesh with a wind speed of about 120 kmph. Tropical cyclones are some of the world’s most forceful and destructive weather systems. Notably, Bangladesh has been registered as the country that every type of flood has visited throughout its history. 1965 (14-15 December) Cox's Bazar along with adjacent coastal area and Patuakhali; severe cyclonic storm with storm-wave rising 4.7-6.1m; maximum speed 210 km/hr in Cox's Bazar, hoisted danger signal 10 at Cox's Bazar and along the coast of Sonadia, Rangadia and Hamidia islands, and Patuakhali; 40,000 salt beds in Cox's Bazar inundated and 873 people killed. AP. Tropical cyclones are usually destructive and affect Bangladesh and its adjoining areas. But another aspect is the total opposite of those blessings. Hurricanes: Science and Society: 1970- The Great Bhola Cyclone 1991 (31 May to 2 June) Offshore islands and chars of Patuakhali, Barisal, Noakhali and Chittagong; cyclonic storm, maximum wind speed 110 km/hr and surge height of 1.9m; people killed, cattlehead perished, boats lost and standing crops destroyed. The cyclone claimed the lives of at least 300,000 people in the low-lying region near the Bangladesh coast. This is the deadliest known tropical cyclone in the history of Bangladesh. Fourteen of the nineteen coastal districts of Bangladesh are high or moderate cyclone-risk areas [1,2]. In 2021, tropical cyclones have formed in six major bodies of water, commonly known as tropical cyclone basins. Save the Children was prepared for the Category 4 storm, Tropical Cyclone Sidr which landed in Bangladesh on Thursday, November 15, 2007. 1960 (9-10 October) Eastern Meghna estuary (Noakhali, Bakerganj, Faridpur and Patuakhali); severe cyclonic storm, maximum wind speed 201 km/hr, maximum storm wave 3.05m; considerable damage to Char Jabbar, Char Amina, Char Bhatia, Ramgati, Hatiya and Noakhali; 3,000 lives lost, 62,725 houses damaged, crops on 94,000 acres of land were fully damaged and thousands of cattle perished. The wind speed was 217 kmph with a 2.3-3.6 meter storm surge. Other methods which have been suggested for preventing the formation or reducing the severity of tropical cyclones is to cover the probable area of sea surface with a thin layer of oil or some chemical substance for reducing evaporation. The Bay of Bengal is an ideal breeding ground for tropical cyclones. Tropical cyclones (TC) are among the most destructive natural hazards in the world [38]. Bibliography AM Chowdhury, 'Rose Petals for Tropical Cyclones', Nuclear Science and Applications (118), 1978; AM Chowdhury et al, 'Steering Wind Effects on Cyclone Tracks in the Bay of Bengal', The Dhaka University Journal of Science 43 (1), January 1995; BBS, 1998 Statistical Yearbook of Bangladesh (19th edition), Bangladesh Bureau of Statistics, Government of the People's Republic of Bangladesh, 1999; K Nizamuddin (ed), Disaster in Bangladesh: Selected Readings, Disaster Research Training and Management Centre, University of Dhaka, 2001. http://en.banglapedia.org/index.php?title=Cyclone&oldid=1695. Severe Tropical Storm Matmo and Very Severe Cyclonic Storm Bulbul were a pair of very damaging tropical cyclones that tracked in the western Pacific Ocean and the north Indian Ocean in October and November 2019, killing 43 people and inflicting about US$3.537 billion in damage. Aliquam vel justo id purus facilisis ultricies. 1961 (9 May) Bagerhat and Khulna; severe cyclonic storm with a wind speed of 161 km/hr, surge 2.44-3.05m; rail track between Noakhali and Harinarayanpur damaged, heavy loss of life in Char Alexander, 11,468 people killed and about 25,000 cattlehead destroyed. 1585 Mouth of the Meghna estuary; severe storm wave swept up the eastern side of Bakerganj; number of living creatures perished, standing crops destroyed. Located in the sandy tracts of Konark in … Extra-tropical cyclones, such as those that occur in Canada and Europe, generally travel from west to east. Using the Monte Carlo simulation procedure, 1000 simulated storms are generated for each site based on the historical inputs. There is a standing order pertaining to cyclones, which lay down actions by all during the various stages of the disaster. How did a scrawny black kid—the son of a barber and a domestic who grew up in Harlem and Trenton—become the 106th mayor of New York City? Found inside – Page 238Places 31 Bangladesh and Central America : tropical storms Figure 9.56 Passage of Hurricane Mitch , October - November 1998 N Guatemala : 258 dead , 200 missing MEXICO Pacific Ocean Figure 9.57 The monsoon in the Indian subcontinent ... Emanuel, Kerry. T1 - Tropical cyclone risk perception and risk reduction analysis for coastal Bangladesh. It caused a damage of around $1.5 billion. If this occurs during high tide, the storm surge is reinforced considerably and can rise as high as 12m. A woman cycles through heavy rain as Cyclone Amphan approaches Kolkata. About five tropical cyclones per year enter the Bay of Bengal both before (April-May) and after (October-November) the southwest monsoon season. The triangular shape of the Bay of Bengal acts to funnel storm surge waters into Bangladesh, and … Cyclone season in the Bay of Bengal, mainly occurs pre and post monsoon season, between April-May and October-November. The funnel-shaped northern portion of the Bay of Bengal amplifies the storm surge of landfalling tropical cyclones, affecting thousands of people. Moreover, the Cyclone Amphan is heading towards Bangladesh Coasts at a rapid rate and the Chittagong and Cox’s Bazar Area has been issued a level 9 and Mongla and Payra Area signal. ing.5 Tropical cyclones and storm surges are particularly severe in the Bay of Bengal region. 1998 (16-20 May) Offshore islands and chars of Chittagong, Cox's Bazar and Noakhali; severe cyclonic storm (hurricane) with a wind speed of 150 km/hr, storm surge of 1.83 to 2.44m. This peculiar geography of Bangladesh brings not only the life-giving monsoons but also catastrophic cyclones, nor'westers, tornadoes and floods. The most cyclone … Officially the death figure was put at 500,000 but it could be more. The most destructive cyclone to ever hit the Bangladeshi atlas was the Bhola Cyclone. The casualties were numbered at 5,708. 1872 (October) Cox's Bazar; cyclonic storm; exact figures of the loss of lives and cattle are not available. 1985 (24-25 May) Chittagong, Cox's Bazar, Noakhali and their offshore islands (Sandwip, Hatiya, and Urirchar); severe cyclonic storm, wind speed Chittagong 154 km/hr, Sandwip 140 km/hr, Cox's Bazar 100 km/hr and storm surge of 3.0-4.6m; about 11,069 persons killed, 94,379 houses damaged, livestock lost 135,033 and road damaged 74 km, embankments damaged. On an average, 80 tropical cyclones are formed every year all over the globe. A cyclone derives its spinning motion from the Coriolis Force arising out of the earth's rotation. This deadly wall of water does most of the damage to life and property. Another devastating cyclone came in the form of Urir Chor Cyclone. This is because of the low flat terrain, high density of population and poorly built houses. Tropical Cyclone Mora made landfall along the south-eastern coast of Bangladesh on 30th May. 1909 (16 October) Khulna; cyclonic storm-waves; killed 698 people and 70,654 cattle. Bangladesh today has a comprehensive Cyclone Preparedness Programme (CPP) jointly operated by the Bangladesh Red Crescent Society and the Ministry of Disaster Management and Relief. Matmo was the 41st tropical depression and the 27th 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 … The life cycle of a cyclone ends soon after the cyclone reaches land ('landfall'), because it is cut off from its moisture source. A total of 1,400 families have received Copyright © 2020, University of Rhode Island. In Bangladesh the maximum value of this storm surge has been reported to be as high as 13m. Cyclone track Cyclones in their initial stages move at a rate of 5 to 10 km/hr. On April 28, the storm began to accelerate northeastwards under the influence of the southwesterlies, and … Bangladesh (formerly East Pakistan) is a densely-populated delta country that sits on sediments eroded from the Himalayan Mountains. The naming of the tropical cyclones over north Indian Ocean commenced from September 2004, with names provided by eight Members. The twenty-one articles included in this book deal with the scientific and management issues of land-based and marine hazards which cause the most severe economic losses, deaths and environmental degradation in many parts of the world. During the period 1978-2016, a total of 131 tropical cyclones (TCs) formed in the Bay of Bengal, showing annual mean occurrence of 3.6 TCs. 1974 (24-28 November) Coastal belt from Cox's Bazar to Chittagong and offshore islands; severe cyclonic storm with a wind speed of 161 km/hr and storm surge of 2.8-5.2 m; 200 people killed, 1000 cattle lost and 2,300 houses perished. 21 Conclusion This paper explores the extent of impact and the severity of tropical cyclone Sidr in Bangladesh, and assesses various countermeasures undertaken by the Government of Bangladesh together with NGOs. With it, the cyclone brought a 6 m (20 ft)-storm surge and average winds in excess of 225.3 km/h (140 mph). Click here to get live updates about Cyclone Yaas. This cyclone was the sixth cyclonic storm of the 1970 North Indian Ocean cyclone season and also the season’s strongest. 1970 (12-13 November) The most deadly and devastating cyclonic storm that caused the highest casualty in the history of Bangladesh. Direct studies of cyclones with aircraft reconnaissance are also being carried out by advanced countries. Found inside – Page 4Total deaths Disaster in 14 years Greatest single event Tropical cyclones 416972 300 000 (Bangladesh, 1970) Earthquakes and tidal waves 195328 66 794 (Peru, 1969) Floods 26 724 8000 (S. Vietnam, 1964) Tornadoes, severe local storms 4062 ... It caused the deaths of at least 300,000 people in the low-lying region near the Bangladesh coastal lines. 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 Bengal (including India ruled Bengal) "Bangledesh". The aim of this book is to provide information to scientists and local government to help them better understand the particularities of the local climate. Climate change is one of the biggest challenges to society. 1965 (11-12 May) Barisal and Bakerganj; most severe cyclonic storm, maximum speed 162 km/hr with storm-wave rising 3.7m; total loss of life 19,279; in Barisal alone 16,456 people killed. MEDIA RELEASE: Cyclone Fani / Bangladesh / 3 May 2019. The spiralling winds converge toward the centre of the low pressure where they rise at a tremendous speed. High resolution simulations at 4.4 km and 1.5 km resolution have been performed for 12 historical tropical cyclones impacting Bangladesh. 4.3. Facts on File, Inc. New York. We use the European Centre for Medium-Range Weather Forecasting 5 th generation Re-Analysis (ERA5) to provide a 9-member ensemble of initial and boundary conditions for the regional configuration of the Met Office Unified Model. 1897 (24 October) Chittagong; hurricane reached maximum intensity with series of storm-waves; Kutubdia Island and coastal villages were swept over, 14,000 people killed and 18,000 died in epidemics (cholera) that followed. On various subjects pertaining to Bangladesh. The new generation would remember the accompanying flood closing down social activities for a while. On an average, five severe cyclonic storms hit Bangladesh every year and the accompanying surge can reach as far as 200 km inland. Mitigation and Preparation to Response and Recovery, 2013 Hurricane Webinar Series for Educators. They are formed slightly north of the equator in the Northern Hemisphere, where they can acquire the necessary spin. These experiments, though very promising, have remained inconclusive. Tropical Cyclone Bhola, which hit present-day Bangladesh on 12/13 November, remains the deadliest tropical cyclone on record. With a wind speed of 160 kmph, the unnamed cyclone continued its destruction along the shores. Cyclones accompanied by heavy rains and sea swells are called storm surges. 2009 (19-21 April) Cyclone 'Bijli' attacked weakly in Bangladesh and not so severe damages were recorded except some houses and crop fields losses. In recent years, Cyclones have been a very worrying addition. India, Bangladesh - Tropical Cyclone AMPHAN update (ECHO 22 May 2020) Fri, 22 May 2020 13:04. There are various reasons for the disastrous effects of cyclones and storm surges in Bangladesh. By strengthening the cyclone warning system and adopting protective and relief measures, the damage could be minimised. Thirty-five percent of the area is less than 6 m (20 ft) above sea level, and over 20% of the entire country is submerged beneath annual river floods in an average year. Found inside – Page 7... 1961 Typhoon Hong Kong 400 1902 Volcanic eruption Martinique 29,000 1962 Landslide Peru 5,000 1902 Volcanic eruption Guatemala 6,000 1962 Earthquake Iran 12,000 1906 Typhoon Hong Kong 10,000 1963 Tropical cyclone Bangladesh 22,000 ... 1904 (November) Sonadia; cyclonic storm; 143 killed and fishing fleet wrecked. More than 1,000 homes have been destroyed and … The most deadly tropical cyclone ever recorded hit Bangladesh in 1970 killing approximately 300,000 people as a result of the storm surge. They usually occur at latitudes greater than 5'N or 5'S. Other meteorologists of the world immediately accepted the term and it is still current today. More than 400,000 houses and 3,500 educational institutions were damaged. 1797 (November) Chittagong; severe cyclonic storm; every hut levelled to the ground and 2 vessels sunk in chittagong port. The opposition Awami League gained a landslide victory during general elections held that December in the province, partially a result of the national government’s failed relief efforts. Wrecked houseboats and bent palm trees in Key West, Florida, show the effects of Hurricane Georges, September 25, 1998. Found inside – Page 184Divine Wind: The History and Science of Hurricanes. New York: Oxford University Press, 2005. Haque, C. Emdad, and Danny Blair. “Vulnerability to Tropical Cyclones: Evidence from the April 1991 Cyclone in Coastal Bangladesh. The cyclone made landfall Saturday night, November 9, 2019, over Indo-Bangladesh coast as Severe Cyclonic Storm. Another Cyclone that the coastal areas, hit the next year. Cyclones in the Bay of Bengal usually move northwest in the beginning and then curve eastwards. 1962 (26-30 October) Feni; severe cyclonic storm with a wind speed of 161 km/hr, surge 2.5-3.0m; heavy loss of life; about 1,000 people died and many domestic cattle perished. The 1991 Bangladesh cyclone (IMD designation: BOB 01, JTWC designation: 02B) was among the deadliest tropical cyclones on record. Abdus. Irrigation and Waterways Department, GoWB. In: Divine Wind. sparrso (Space Research and Remote Sensing Organisation) in collaboration with Dhaka University has undertaken an investigation of the problem and it has been found that there seems to be a steering current for every cyclone, but the level differs from cyclone to cyclone and there does not seem to be any relationship with the intensity of the cyclone. Cover photo: Typhoon Nargis over the Bay of Bengal. The deadly storm slammed ashore near the border of eastern India and Bangladesh, delivering substantial storm surge to coastal areas. It also hit Barguna, Khepupara, Patuakhali, north of Char Burhanuddin, Char Tazumuddin and south of Maijdi, Haringhata and caused heavy loss of lives and damage to crops and property. This pair of images from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite shows a section of Bangladesh before (left) and after (right) the passage of Cyclone Sidr through the country in mid-November 2007. Such symptoms can serve as a warning for the possible approach of a cyclone. As of May 27, the death toll was expected to rise. The most destructive cyclone to ever hit the Bangladeshi atlas was the Bhola Cyclone. The storm left a path of destruction in both of the countries' coastal areas, affecting millions of people. The maximum recorded wind speed of the 1970 cyclone was about 222 km/hr and the maximum storm surge height was about 10.6m and the cyclone occurred during high-tide. Found inside – Page 503An increase in mean tropical cyclone maximum wind speed is likely, although increases may not occur in all tropical ... Indian Ocean (Reale et al., 2009), Bangladesh and India account for 86% of mortality from tropical cyclones (UNISDR, ... Go inside a tropical cyclone's eye to learn how low-pressure cores exist amid cloud walls and high winds. Found inside – Page 35Cyclone preparedness programme (CPP) and Bangladesh red crescent society (BDRCS), Dhaka Del Ninno C, Dorosh PA (2003) Public ... Washington, pp 173–179 Dow K, Cutter S (1998) Crying wolf: Repeat responses to hurricane evacuation orders. In the 20th century, seven of the nine most deadly weather events in the world were tropical cyclones that struck Bangladesh. The victim count was much less than the previous cyclone with the number being 873. Present day Bangladesh, due to its unique geographic location, suffers from devastating tropical cyclones frequently. The cyclone AMPHAN, which made a landfall on 20 May has left behind a trail of destruction in the coastal areas both in India and Bangladesh, affecting tens of millions of people. The central overcast cloud had a diameter exceeding 600 km. Found inside – Page 61The great cyclones in 1970, 1985, 1991, 1997, and 2007 all resulted in high death rates. From 1980 to 2000, more than 250,000 deaths were caused by tropical cyclones worldwide; 60% of these occurred in Bangladesh (IPCC 2007) ... India's West Bengal State and Bangladesh were struck by Tropical Cyclone Amphan a year ago in May. High resolution simulations at 4.4 km and 1.5 km resolution have been performed for 12 historical tropical cyclones impacting Bangladesh. Most of the damage during a cyclone is done by the storm surges, which sometimes wash over entire offshore islands and large areas on the coast. Bangladesh is one of the most disaster -prone countries in the world , ranking seventh in the 1999 -2018 Long -Term Climate Ris k Index (Eckstein et al., 2019) . Out of the casualties, 16,456 were in Barisal. Great Cyclone of 1970. The model has shown promising results in forecasting a cyclone's movement twenty-four hours ahead of landfall. By this time, warning and evacuation systems in the area had advanced to the point where several million people could be evacuated ahead of the storm; otherwise, the death toll is predicted to have been much higher. It is only with the advent of the Space age that weather satellites have provided valuable information about them. In Bangladesh, cyclones occur in April-May and also in September-December. Praesent eget mauris vitae purus aliquet pretium. Similarly, another Cyclone again hit the country in the month of December. Cyclones in the Bay of Bengal Because of the funnel shaped coast of the Bay of Bengal, Bangladesh very often becomes the landing ground of cyclones formed in the Bay of Bengal. The Great East Pakistan Cyclone of November 1970. From 28 April it started moving in a north-easterly direction and crossed the Bangladesh coast north of Chittagong port during the night of the 29th April. 217 - 229 , 10.1111/j.1467-7717.1992.tb00400.x CrossRef View Record in Scopus Google Scholar The eye is warmer than the rest of the storm area. Click here to get live updates about Cyclone Yaas, Cautionary signal for ports, cyclone ‘Gati’ coming, The Prime Minister warns against prolonged floods, Nishorgo Looming in the Horizon after Ampan. It caused the deaths of 17 people. Cyclones are usually formed in the deep seas and hence their study has been very difficult. Firstly Cyclone ‘Mahasen’ made land fall between 69% latrines were damaged and 61% tube-wells as Bhola and Patuakhali districts of Barisal division and well. SPARRSO has installed the model TYAN for predicting the track of a cyclone based on the climatology of the Bay of Bengal cyclones for the last one hundred years. The cyclone started affecting the coastal islands like Nijhum Dwip, Manpura, Bhola and Sandwip from the evening of that day. The Bay cyclones also move towards the eastern coast of India, towards Myanmar and occasionally into Sri Lanka. Cyclone Amphan has made landfall in eastern India and Bangladesh, killing at … Tropical Cyclone Sidr appears here as a well-developed and distinct ball of circling clouds; the storm has a distinct but cloudy eye at its center. The term cyclone is derived from the Greek word 'kyklos' meaning coil of snakes. Editor in Chief, Paul A. Kobasa. It prompted calls for action to prevent a repeat of such a catastrophic loss of life and ultimately laid the foundations of WMO’s Tropical Cyclone Programme. Moreover, there is a chance that these cyclones could change their track and move towards another direction. Chicago Pp 38-39. python r bangladesh tropical-cyclone applied-science Updated May 4, 2021; Python; Improve this page Add a description, image, and links to the tropical-cyclone topic page so that developers can more easily learn about it. For the first time, the three components of risks are integrated, under which and the spatial layer of each criterion was created using remote sensing and GIS techniques to develop the tropical cyclone risk map. Found inside – Page 719Blain, C.A., J.J. Westerink and R.A. Luettich, 1994: Domain and grid sensitivity studies for hurricane storm surge ... H., 1993: Geographical complexities of detailed impact assessment for Ganges-Brahmaputra-Meghna delta of Bangladesh. Found inside – Page 88How do tropical storms affect people ? CASE STUDY LEDC : Bangladesle cyclone , April 1991 . In late April 1991 a tropical cyclone hit the east coast of Bangladesh ( A ) . The worst hit areas included the exposed , flat offshore islands ... Although there was political discord in place prior to the cyclone’s strike, the landslide victory and continuing unrest between East Pakistan and the central government triggered the Bangladesh Liberation War, which widened into the Indo-Pakistani War of 1971. [Masud Hasan Chowdhury]. Cyclones occurring in the tropical regions are called tropical cyclones and those occurring elsewhere are called extratropical cyclones. Tropical cyclones are some of the world’s most forceful and destructive weather systems. This book articulates why services from national meteorological and hydrological services (NMHSs) are important to improve nations' weather and climate resilience. 2 forced to take shelter on roadsides and in temporary locations. Over one million cattlehead were reported lost. The Pakistani government was severely criticized for its handling of relief operations following the disaster. Disaster Risk Index (DRI) for Tropical Cyclone of Bangladesh Shamim Ara Bobby Lecturer, Department of Civil Engineering Stamford University Bangladesh Abstract The risk and magnitude of damages to people and property due to natural disasters are very severe in Bangladesh. Among them, the 1970 Bhola cyclonealone claimed approximately 300,000 to 500,000 l… The entire government machinery including the army, the navy, the air force and the relevant ministries and organisations are required to discharge their duties in the event of a cyclone. The maximum wind speed estimated from NOAA-11 satellite picture obtained at 13:38 hours on 29 April was about 240 km/hr. The November 11, 1970 "Bhola Cyclone" moved into East Pakistan, now known as Bangladesh, and produced devastating storm surge flooding. A Northern Hemisphere tropical cyclone is approaching Bangladesh from the south and is moving north at 30 mph. The WMO/ESCAP Panel on Tropical Cyclones (hereafter the Panel) at its twenty-seventh Session held in 2000 in Muscat, Sultanate of Oman, agreed in principal to assign names to the tropical cyclones in the Bay of Bengal and Arabian Sea. Prevention The energy in a severe cyclone is equivalent to that of several thousand atom bombs of megaton strength and hence it is difficult even at this advanced stage of technology to try to modify a tropical cyclone. About 150 lives were and 200,000 houses were damaged or destroyed in the aftermath. Wikipedia- 1970 Bhola Cyclone http://en.wikipedia.org/wiki/1970_Bhola_cyclone. A total of 23,058 ha surface waters were observed. A tropical storm has lashed coastal areas of Bangladesh, killing 12 people, destroying thousands of huts and forcing up to a million people to flee. The book presents engineers, scientists, and planners with the necessary tools and planning solutions used to combat coastal vulnerabilities in Bangladesh. The wind speeds recorded at different places were as follows: Chittagong 160 km/hr, Khepupara (Kalapara) 180 km/hr, Kutubdia 180 km/hr, Cox's Bazar 185 km/hr, and Bhola 178 km/hr. Chittagong was battered by hurricane winds. The death toll was estimated at 150,000; cattlehead killed 70,000. The right-hand side of a travelling cyclone has more destructive power than its left-hand side. These tropical cyclones can be very devastating and can severely affect the coastline of Bangladesh. Tropical Cyclone Komen Soaks Bangladesh, Myanmar, India Extreme rainfall, exacerbated by Tropical Cyclone Komen, has contributed to at least 199 … In this way, the transport distance during a 6-h-long period is estimated for each of the six 50-km-wide cyclonic rings (Table 1). Each year, an average of 86 storms ... GoB (Government of Bangladesh): Cyclone Sidr in Bangladesh: Damage, Loss, and Needs Assessment for Disaster Recovery and Reconstruction, p. 19 (2008) GoWB (Government of West Bengal): Flood Management: Aila. 2005. Bangladesh is part of the humid tropics, with the himalayas on the north and the funnel-shaped coast touching the bay of bengal on the south. Recently SPARRSO has established advanced receiving and analysing equipment with financial assistance from USAID under NASA's supervision. They strike the coast nearly at the same time that the centre of the storm crosses the coast. Among all the atmospheric disturbances, cyclones are the most destructive. Winds within the eyewall of the storm are blowing at 150 mph. At least 500,000 people lost their lives in the storm, primarily as a result of the storm surge that flooded much of the low-lying islands of the Ganges Delta. 1584 Bakerganj (presently Barisal) and Patuakhali; hurricane with thunder and lightening continued for five hours; the houses and boats were swallowed up, leaving only Hindu temples on a height; about 2,000,000 living creatures perished. Cyclone Mahasen occurred near the Chittagong District with a wind speed of 85 km per hour. 2008). More than 1,000 homes have been destroyed and … A total of 38,000 marine and 77,000 inland fishermen were affected by the cyclone. The victim count this time was 155 people. Patricia (2015) was a Category 5 hurricane in the eastern North Pacific with 1-minute average winds of 215 m.p.h. It caused the deaths of at least 300,000 people in the low-lying region near the Bangladesh coastal lines. The tropical cyclone season in the Bay of Bengal and Arabian Sea has two peaks, around May and around November and, in the past, the basin witnessed huge casualties. To enhance past records of tropical cyclones in Bangladesh, regional geological studies of palaeostorm-surge events should be conducted. The April 1991 Cyclone was a powerful tropical cyclone that struck the Chittagong district of southeastern Bangladesh on April 29, 1991. An automatic grid, ie latitude, longitude and national boundaries are fitted in the picture with the help of the present equipment.