The Bangladesh Meteorological Department on Thursday said that a weeklong wet spell is likely to set in over Bangladesh from today.
The wet spell will cover almost entire Bangladesh and might continue through August 15 bringing heavy to very heavy rainfall, the BMD said.
鈥楻ainfall will gradually increase from today,鈥� said meteorologist Muhammad Abul Kalam Mallik.
August is the third month of the four-month-long monsoon season. The BMD predicted normal rainfall to occur this month. Monsoon accounts for more than 80 per cent of annual rainfall.
Last month saw over 17 per cent less rainfall than normal. Of the eight divisions, only Sylhet recorded over 14 per cent more rain than normal in July.
Bangladesh鈥檚 highest rainfall of 309mm was recorded in Cox鈥檚 Bazar on July 11.
The BMD expected two lows to form over the Bay of Bengal with the chance of one of them turning into a depression.
Due to strong monsoon active of the Bay of Bengal, the BMD on Thursday issued signal number three for all maritime ports 鈥� Payra, Mongla, Chattogram and Cox鈥檚 Bazar.
Fishing boats and trawlers have been asked to remain close to the coast and proceed with caution until further notice.
In the 24 hours until 6:00am on Thursday, Bangladesh鈥檚 maximum rainfall of 44mm was recorded in Ramgati. The sky remained overcast with light rainfall in places of Bangladesh during the rest hours of the day.
The Flood Forecasting and Warning Centre on Thursday reported that the Kusiyara was flowing above the danger marks in two places 鈥� Amalshid and Sheola 鈥� in Sylhet.
In the 24 hours until 9:00am on Thursday, Bangladesh鈥檚 highest maximum rainfall of 81mm was recorded at Moheshkhola in Sunamganj.
The Brahmaputra, Ganges, Surma, Kusiyara, Teesta, Dharla and Dudhkumar are in rising trend, the FFWC said.
The India Meteorological Department predicted heavy to very heavy rainfall in Bangladesh鈥檚 upstream region through August 13.
In the 24 hours until 8:30am, the IMD recorded up to 130mm of rainfall in Bangladesh鈥檚 upstream areas.