While several parts of country are already under grip of flood, more areas are likely to be inundated by flood water.
Sarder Udoy Raihan, an official of Flood Forecasting and warning Centre (FFWC), said, "As major rivers are in rising trend, different parts of country might be flooded during the next few days."
"Northeastern parts of the country have been badly affected by the ongoing flood. Floodwater may engulf more areas in the region, if the trend of heavy rainfall continues," he added.
Floodwater may inundate low-lying areas of southeastern parts of the country as water level of the Halda and Matamuhuri rivers has risen sharply due to heavy rainfall and onrush water from the upstream, he added.
Incessant rains since last night led to heavy water-logging in different parts of Dhaka city, including Motijheel, Purana Paltan, Fakirapul, Arambagh, Malibagh, Shatinagar, Rajarbagh, Kazi Para, Shewrapara areas, causing sufferings for commuters.
Met Office recorded 13 mm rainfall between 6am and 12noon in Dhaka city while the city saw 28 mm during 24 hours till 6am this morning. According to experts, poor drainage system is largely responsible for water-logging in Dhaka city as moderate rainfall is enough for submerging many areas of the city.
A meteorologist of Bangladesh Meteorological Department (BMD) said, "July is the most rainfall month of Bangladesh. The country may witness heavy to heavy rainfall till mid-July."
Among the 90 monitored water level stations, three river stations have been registered steady while seven river stations were registered flowing above danger level, a bulletin issued by the FFWC said here today.
According to the FFWC, the Surma at Kanaighat and Sunamganj, the Kushiyara at Amalshid, at Sheola and at Sherpur-Sylhet, the Halda and the Matamuhuri are flowing above its danger levels by 72 cm, 5cm, 78cm, 68cm, 16cm, 10 and 78 cm respectively