Water level in rivers fell slightly, but sufferings of 5.5-million people marooned mounted further in Sylhet, Sunamganj and Netrakona -- the three worst-hit districts -- amid shortages of food, sanitation and water.
The flood-hit northeast is about to undergo food insecurity, with standing Aus crops mostly damaged and Aman seedbed preparation delayed for a month.
Public, private and household grain storages have also been affected severely by the flood which is set to worsen the situation further, according to insiders.
Livestock and fisheries also witnessed a massive blow, although the government agency concerned has yet to deliver necessary data on it.
Meanwhile, troops are struggling hard against a strong current to take food aid to people in remotest areas.
In many hard-to-reach areas, foods are being thrown from helicopters, according to media reports.
Meanwhile, floodwaters inundated fresh areas in Jamalpur, Sherpur, Habiganj, Kishoreganj, Moulvibazar, Nilphamari, Lalmonirhat, Gaibandha, Bogura and Sirajganj on Monday amid heavy rain and a rise in water level in adjacent rivers.
Apart from the Ganges and the Brahmaputra, waters in the Meghna basin also started to rise.
On the day, nine major rivers in 18 points were flowing above danger marks by 20cm (Jamuna at Porabari) to 184cm (Kushiyara at Amalshid), disclosed the flood forecasting and warning centre.
Heavy rainfall may occur in the country's north and north-eastern regions alongside the adjoining states of Assam, Meghalaya, Tripura and sub-Himalayan West Bengal of India in the next two days.
As a result, the Brahmaputra-Jamuna, Ganges-Padma, Dharla, Dudkumar and all other major rivers may continue to rise during the period.
Flood situation in the three devastated may remain steady for another day when water level of Teesta may remain near or above danger level.
The situation may deteriorate in low-lying areas of Lalmonirhat, Nilphamari, Rangpur, Kurigram, Gaibandha, Bogura, Sirajganj, Jamalpur and Tangail.
All major rivers of Chattogram, Cox's Bazar, Rangamati and Bandarban may also rise rapidly during this period.
However, thousands of people were waiting for food, sanitary materials and water in most of the flood-hit areas in Sunamganj.
Sunamganj's Tahirpur upazila chairman Karuna Sindhu Chowdhury Babul, who was available on mobile after three days, told the FE that they were yet to reach low-lying areas of Dokkhin Sripur, Dokkhin Bordol, Balujhuri union of Tahirpur for lack of vessels.
He said 0.15-million people under seven unions of the upazila have gone under water since last Thursday.
Electricity outage, poor mobile network and lack of rescue boats have made the situation much critical.
Upazila parishad along with the local administration has been trying to reach people to save their lives.
Mr Babul speaks about food shortages as households have mostly lost Boro stockpiles to floods and food from other districts cannot reach amid strong water current.
However, electricity connections were restored in some places of Sunamganj on Monday, he says.
According to disaster management ministry, 720 tonnes of rice, Tk 14.8 million and 17,000 packets of dry food have been distributed there in the last five days.
The ministry said 0.6-million people stranded in the district need urgent aid.
Thousands of people in flood-hit Sylhet, Netrakona and Kurigram are also awaiting food and other assistance.
The ministry has distributed 2,240 tonnes of rice, Tk 38.60 million and 71,000 packets of dry food among flood victims in the last five days.
Meanwhile, flood damaged above 48,000 hectares of Aus crops in Sylhet, Sunamganj, Netrakona and Kurigram districts from which 0.125 million tonnes of rice could be collected, according to officials at the regional offices of Department of Agricultural Extension (DAE) of Sylhet and Rangpur.
A total of 33,000 hectares of Aus land have got damaged in Sylhet while it is 13,000 hectares in Sunamganj, 700 hectares in Kurigram and 537 hectares in Netrakona.
Meanwhile, public food storage in Sunamganj and Sylhet districts has severely been hampered amid floods.
Nearly 1,000 tonnes of rice and wheat got damaged in Companiganj and Goayainghat while Sunamganj warehouses witnessed severe damage, according to food controller offices of the respective districts.
DAE Netrakona deputy director FM Mubarak Ali says, "If waters prolong for a month, we have to go for late plantation which will naturally cause a fall in production."
The district produces rice on 0.132-million hectares in Aman season, he adds.
Time is peak for seedbed preparation, but farmers cannot go for it amid submersion.
Sylhet, Sunamganj and Kurigram have a target to grow Aman crops on 0.32-million hectares combined.
DAE Kurigram office says seedbed on 890 hectares was prepared but it got washed away in the flood.
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