The 433mm of rainfall recorded in Rangpur from 10pm on Saturday to 10am Sunday that inundated most areas of Rangpur district including the city was the highest in 100 years.
The rain triggered flash floods that marooned 50,000 people. Streets, lanes and by-lanes, houses are submerged under knee to waist-deep water.
The Met office in Rangpur recorded the rainfall during the period which broke all the records of the last 100 years of the district.
The rainfall is likely to continue for the next two days, said assistant meteorologist Mostafizur Rahman of the Met Office.
Besides, the Shayma Sundori and Cadi canal, the only recourse to alleviate the city's waterlogging, has gone under water, according to sources of Bangladesh Water Development Board and Fire Service and Civil Defense.
The city's drainage system has also collapsed. City dwellers say they have not seen such rainfall in 25-30 years. Even, the massive flood in 1988 did not cause such waterlogging.
The city dwellers are suffering as water has seeped into their houses due to incessant rains since last night.
Electricity connections have been cut off in different places. People, who are going out in case of emergency, are not getting transport. They are paying extra charge to reach their destination.
Meanwhile, water level is flowing over the danger line at Dahlia and Kaunia points in the Teesta.
Heavy rains and lightning have caused extensive damage in various parts of the district.
Agricultural lands, crops and ponds have been submerged in water.
Meanwhile, fire service has been working in different areas of the city since morning to rescue the stranded people.
Also read: Where rain and waterlogging go hand-in-hand