Sunamganj flood 2026

Flash floods hit Sunamganj on April 28, 2026, after 137 millimetres of rain fell in just 24 hours. Two embankments collapsed in Madhyanagar and Bishwambharpur upazilas. Floodwaters submerged paddy fields across the haor region before farmers could complete harvesting. The Surma river rose 35 centimetres in 24 hours, and forecasters warn heavy rain will continue for at least two more days.