These floods are caused by heavy rainfall, snowmelt from the Himalayas, and cyclones from the Bay of Bengal. The country's low-lying geography and extensive river systems also contribute to the frequency and severity of floods.
Some of the most notable floods in Bangladesh in recent years include:
- 1970 Bhola cyclone and flood: This was one of the deadliest natural disasters in history, killing an estimated 300,000 people.
- 1988 flood: This flood affected over 30 million people and caused widespread damage to crops and infrastructure.
- 1998 flood: This flood affected over 30 million people and caused widespread damage to crops and infrastructure.
- 2004 flood: This flood affected over 10 million people and caused widespread damage to crops and infrastructure.
- 2007 flood: This flood affected over 10 million people and caused widespread damage to crops and infrastructure.