Bangladesh experienced moderate to heavy rainfall on Saturday and is expecting to experience the same in the upcoming three days amid monsoon season in the country and extra supply of moisture from the Bay of Bengal.
Bangladesh Meteorological Department asked the maritime ports to keep hoisting signal number three due to the low pressure that became well-marked before it moved inland three days ago through Odisha.
The low pressure became unimportant but still continued to influence the weather causing rain and turning the North Bay unstable, said meteorologists.
‘This week is going to be very wet, especially the next three days,’ said meteorologist Abdul Mannan.
He said that the monsoon began on June 12, eight days earlier than the last year.
‘There is a very good supply of moisture from the Bay of Bengal as well,’ he added.
Heavy rain inside Bangladesh and in upstream across the border continued for nearly two weeks due to super cyclone Amphan which led to landfall on May 20, according to the forecasters.
After a few dry days, rain began again causing trouble for those living close to major rivers.
Flood Forecasting and Warning Centre already warned that major rivers were not swelled this manner at this time of the year since 1988, the year Bangladesh faced its one of the biggest floods.
A FFWC bulletin on Saturday said that the River Jamuna may continue to swell over the next 48 hours.
It said that the other rivers looked stable for the moment.
Of the 101 river gauging stations, the FFWC recorded swelling in 63 of them over the last 24 hours ending at 9:00am Saturday.
The FFWC also recorded heavy rainfall at many places during the same time including Durgapur in Netrokona, Chapainawabganj, Mymensingh, Rajshahi, Khulna and Cumilla, up to 92mm.
On June 10, a medium range flood forecast by the FFWC said that major rivers in the country may start swelling again after June 15 depending on rain.
India Meteorological Department predicted widespread rainfall in Assam and Meghalaya, West Bengal and Sikkim, and Gangetic West Bengal until Wednesday.
Bangladesh is downstream the places where widespread rain has been predicted and the rivers through which the rain water is supposed to be passed are almost full to the brim.
Bangladesh has one of the lowest land elevations in the world and it gets flooded every monsoon, often more than once.