Bangladesh, being situated on the Brahmaputra River Delta (also known as the Ganges Delta) is a land of many rivers, and as a result, is very prone to flooding. Due to being part of such a basin and being less than 5 meters above mean sea level, Bangladesh faces the cumulative effects of floods due to water flashing from nearby hills, the accumulation of the inflow of water from upstream catchments, and locally heavy rainfall enhanced by drainage congestion. Bangladesh faces this problem almost every year.
Flooding from prolonged heavy rains on 18–19 June inundated the Haor region in Northeastern Bangladesh, with Sylhet district experiencing 242 mm of rainfall, and the Sunamganj district experiencing 223 mm, exceeding the monthly average for both. [1]
The resulting flash floods and landslides affected at least 2.1 million people throughout Bangladesh, requiring nearly 30,000 people to evacuate to shelter centers. In Northeast Bangladesh, several displaced families were observed wandering for shelter. Nearly 75% of the area of Sylhet District was flooded, which included 23 Sylhet city wards as well as 1,548 villages in thirteen administrative divisions, affecting over 825,000 people directly. In Sunamganj District, flooding affected at least 560,000 people. [2] UNICEF reports stated that 772,000 children were affected by flash flooding in Bangladesh's Northeastern regions. [3] European Commission reports claimed that at least 15 people killed from landslides and 51,000 people displaced. It also noted that over half of the farmland and paddy fields in the Sylhet District were submerged. [1]
From 18 to 19 June 2024, heavy rainfall struck multiple refugee camps in Cox's Bazar in Southeastern Bangladesh, causing widespread flooding and at least 773 landslide incidents. At least ten people died, seven of whom were Rohingya refugees, while nearly 8,000 people across 1,200 different shelters in 33 refugee camps were also affected. [2]
On August 21, 2024, heavy rainfall coupled with a surge of water from Indian dams caused flash floods in Bangladesh. The next day, Nahid Islam, an advisor to the interim government, said that India had deliberately released water by opening the dam's gates without prior notice showcasing their inhumanity and non-cooperation with Bangladesh. [4] India has also allegedly violated international law in relation to the management of transboundary water resources, local media reports. [5]
On August 22, in a courtesy meeting with Professor Mohammad Yunus, Chief Adviser to Bangladesh's interim government, Indian High Commissioner Pranay Kumar Verma claimed that the water released from a dam was due to natural automatic processes triggered by rising water levels upstream in India. [6]
The flood affected at least 11 districts in northeastern and southeastern Bangladesh. [7] As of August 31, 2024, the disaster has resulted in over 50 fatalities [8] and has impacted approximately 5.8 million people. [9]
In October, heavy rains in the Indian state of Meghalaya caused flooding in the downstream plain areas comprised of the border upazilas of Sherpur, Mymensingh and Netrokona districts. Over 60,000 families were displaced by the flooding, which killed 11 people, all in Sherpur district. 92,000 hectares of farmland were completely or partially destroyed with losses estimated at 1144 crore taka, with losses also to fishers. [10]
The 2007 South Asian floods were a series of floods in India, Pakistan, Bhutan, Nepal and Bangladesh. News Agencies, citing the Indian and Bangladeshi governments, place the death toll in excess of 2,000. By 3 August, approximately 20 million had been affected and by 10 August some 30 million people in India, Bangladesh and Nepal had been affected by flooding.
This is a list of notable recorded floods that have occurred in India. Floods are the most common natural disaster in India. The heaviest southwest, the Brahmaputra, and other rivers to distend their banks, often flooding surrounding areas.
Cyclonic Storm Komen was an unusual tropical cyclone that originated near the southern coast of Bangladesh and later struck the same country while drifting over the northern Bay of Bengal. The second named storm of the 2015 season, Komen brought several days of heavy rainfall to Myanmar, Bangladesh, and India. It formed as a depression on July 26 over the Ganges delta and moved in a circular motion around the northern Bay of Bengal. Komen intensified into a 75 km/h (45 mph) cyclonic storm and moved ashore southeastern Bangladesh on July 30. The system turned westward over land and was last noted over eastern India on August 2.
In mid-March 2019, monsoonal downpours caused widespread flooding and landslides across South Asia.
The 2019 Indian floods were a series of floods that affected over thirteen states in late July and early August 2019, due to excessive rains. At least 200 people died and about a million people were displaced. Karnataka and Maharashtra were the most severely affected states. People died but many were rescued with the help of the Indian Navy.
The 2020 East Africa floods were a natural disaster in Rwanda, Kenya, Somalia, Burundi, Ethiopia, Uganda, Democratic Republic of Congo, Djibouti and Tanzania, affecting at least 700,000 people. They began when excessive rains began falling in March, leading to massive flooding and landslides. They caused more than 430 deaths, notably in Kenya and Rwanda. In the fall another round of floods hit the African Sahel.
The 2020 Yemen flood was a flash flood that killed at least 172 people in Yemen and damaged homes and UNESCO-listed world heritage sites across the country, officials said.
Very Severe Cyclonic Storm Titli was a deadly and destructive tropical cyclone that caused extensive damage to Eastern India in October 2018. Titli was the twelfth depression and fifth named storm to form in the 2018 North Indian Ocean cyclone season. Titli originated from a low pressure area in the Andaman Sea on October 7. With warm sea surface temperatures and low wind shear, the low developed into a depression on October 8 in the central Bay of Bengal. It was tracked and followed by the India Meteorological Department (IMD), which also issued warnings and notices for the public. Titli continued to intensify at it moved toward the southeast Indian coast, becoming a very severe cyclonic storm, equivalent to a minimal hurricane on the Saffir–Simpson scale. It attained the intensity at the same time Cyclone Luban in the Arabian Sea was at the same intensity, marking the first instance since 1977 of simultaneous storms. The IMD estimated peak winds of 150 km/h (95 mph), while the American-based Joint Typhoon Warning Center (JTWC) estimated peak winds of 195 km/h (120 mph). Late on October 10, Titli made landfall in Andhra Pradesh, and it quickly weakened over land as it turned to the northeast. It degenerated into a remnant low on October 12.
In 2021, Niger has been affected by subsequent floods due to heavy rains, causing several deaths and widespread damage nationwide. Niamey is the most affected area. At least 62 people died, 60 were injured and 105,690 individuals have been affected by the floods. Most fatalities were reported in Maradi Region with 18 deaths.
From January 31 to February 1, 2022, heavy rainfall impacted Ecuador, which caused multiple landslides, floods, and mudflows. It was caused by the country's biggest rainfall in nearly 20 years, which fell on the capital.
Beginning in May 2022, deadly floods hit northeastern India and Bangladesh. Over 9 million people in both countries have been affected, and around 300 people were killed.
From January to October 2022, excessive rainfall and widespread monsoon flooding occurred in the South Asian countries of Afghanistan, Bangladesh, India, Nepal, Pakistan, and Sri Lanka. It has become the region's deadliest floods since 2020, with over 4,700 people dead.
From February to late-December 2023, floods killed over 2,600 people in 15 countries across Africa.
The 2023 African Great Lakes floods are floods in April and May 2023 that have killed hundreds of people in the Democratic Republic of the Congo, Rwanda and Uganda.
The 2022 Adamawa State flood was a natural disaster that occurred in Adamawa State, Nigeria, in September 2022. It affected over 30,000 square kilometers of land and exposed about 6.6 million people to potential risks. The flood was caused by heavy rainfall and increased water flows from the Cameroonian highlands. It resulted in 25 deaths, 58 injuries, and the displacement of 131,638 people. It also submerged 153 communities and damaged houses, farmlands and other properties. The flood highlighted the vulnerability of the region to such events and the need for better preparedness and mitigation measures.
Heavy rainfall during the 2024 monsoon season resulted in severe flooding and landslides across several regions of India. Rainfall caused significant flooding first in Assam State and later end of August also in Gujarat, India.
In 2024, the North African country of Sudan experienced flooding caused by heavy rainfall. Flooding beginning in July caused the deaths of at least twelve people, with seven more people injured and at least 12,506 people in total affected.
On August 21, 2024, heavy rainfall, coupled with a surge of water released from a dam in India's Tripura, resulted in severe flooding that affected 73 upazilas (sub-districts) and 528 unions/municipalities across 11 districts in northeastern and southeastern Bangladesh. It marks one of the worst flood events in recent history.