The low over the West Central Bay of Bengal and adjoining Northwest Bay off Andhra Pradesh coast may create heavy to very heavy rainfall and worsen flooding in Bangladesh.
Light to moderate rain or thundershowers accompanied by temporary gusty wind is likely to occur in different parts of the country, according to Bangladesh Meteorological Department.
The trough is likely to move towards the west-northwest. The axis of the monsoon trough runs through Punjab, Haryana, Uttar Pradesh, Bihar, West Bengal to Assam across the southern part of Bangladesh.
One of its associated troughs extends up to North Bay. Monsoon is fairly active over Bangladesh and moderates to strong over the North Bay.
In association with rain or thundershowers, temporary south or south-easterly gusty or squally wind speed 45-60 kph is likely to occur over the regions of Rajshahi, Pabna, Bogura, Tangail, Mymensingh, Dhaka, Faridpur, Jashore, Kushtia, Khulna, Barishal, Patuakhali, Noakhali, Cumilla, Chattogram, Cox’s Bazar and Sylhet were in river ports were asked to hoist cautionary signal no. one.
Meanwhile, all the major rivers of the country are in a rising trend except the rivers of the upper Meghna basin, which may continue in the next 48 hours, said Arifuzzaman Bhuyan, executive engineer of Flood Forecasting and Warning Center (FFWC).
The flood situation in the Teesta basin regions may remain steady in the next 24 hours, he said, adding that the flood situation at low lying areas of Rajbari and Faridpur districts may deteriorate in the next 24 hours.
As a result, the water levels of the rivers of South-Eastern Cox’s Bazar district and Southern coastal region may rise rapidly at times during this period, according to FFWC.