Medium to heavy rainfall may occur in Southeastern Hill Basin and South & South-Western coastal region, which may create flash flood at some places in Cox’s Bazar and Bandarban districts.
Due to active monsoon heavy to very heavy rainfall is likely to occur at places over Dhaka, Khulna, Barishal and Chattogram divisions today, according to Bangladesh Meteorological Department (BMD).
The Flood Forecasting and Warning Centre on Wednesday forecasted that there is a risk of flash flood at some places in Cox’s Bazar and Bandarban districts.
The Ganges River is in rising trend while the Padma River is in steady state, which may continue in the next 48 hours, it said adding that Matamohuri River at Lama point was following over danger level on the day.
There is a chance of medium to heavy rainfall in Southeastern Hill Basin and South & South-Western coastal region of the country in the next 48 hours, said FFWC according to the Numerical Weather Models of BMD and India Meteorological Department.
The water levels of major rivers of the South & South-Western coastal region and the South-Eastern Hill Basin may rise rapidly at times during this period, it also said.
The low over North Bay and adjoining area now lies over southwestern part of Bangladesh and adjoining area as a well-marked low. It is likely to move northwestwards. The axis of monsoon trough runs through Rajsthan, Hariyana, Uttar Pradesh, Bihar, Gangetic West Bengal, the centre of the well-marked low to Assam.
Light to moderate rain or thunder showers accompanied by temporary gusty or squally wind is likely to occur at most places over Rajshahi, Khulna, Barishal, Chattogram, Dhaka and Sylhet divisions and at many places over Rangpur and Mymensingh divisions with heavy to very heavy rainfalls at places over the country.
Meanwhile, the maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to hoist local cautionary Signal No 3 as a low pressure over the North Bay turned into a well-market low, reports UNB.
"The low pressure over the North Bay and adjoining area now lies over South-western part of Bangladesh and adjoining area as a well marked low," said a Met Office bulletin.
Under its influence deep convection is taking place and steep pressure gradient lies over North Bay and adjoining areas, it said.
Squally weather may affect the maritime ports, North Bay and adjoining coastal areas of Bangladesh.
All fishing boats and trawlers over North Bay have been advised to remain close to the coast and proceed with caution till further notice.