The depression over the East central and adjoining West central Bay of Bengal has moved west-northwestwards and now lies over the same area, and there are chances it may turn into a deep depression.

It is likely to intensify further and move in a west-northwesterly direction, Bangladesh Meteorological Department (BMD) said in a special weather bulletin around 6:00am today.

The depression over the Bay may turn into a deep depression and its chance of turning into a cyclone is very low, Bangla daily Prothom Alo reports quoting Meteorologist Abul Kalam Mallik.

Till 6:00am today, it was centered about 941km southwest of Mongla seaport and 951km southwest of Payra seaport. It was about 1,086km southwest of Chattogram sea port, while being 1,046km Southwest of Cox's Bazar port, the bulletin said.

Maritime ports have been asked to hoist distant cautionary signal number one. All fishing boats and trawlers over North Bay also have been asked to remain close to the coast and proceed with caution.

They also advised vessels to not venture out into deep sea.

According to the BMD weather forecast as of 6:00am today, the axis of monsoon trough runs through Bihar, West Bengal to Assam across central part of Bangladesh. Monsoon is less active over Bangladesh and moderate over North Bay.

Light to moderate rain/thunder showers accompanied by temporary gusty wind is likely to occur at one or two places over Dhaka, Mymensingh, Rajshahi, Khulna, Barishal, Chattogram and Sylhet divisions, it said.