A new deep depression has formed over the Bay of Bengal shortly after a depression developed in the Andaman Sea in mid-September. The sea remains rough under its influence, prompting the Bangladesh Meteorological Department to issue warning signal No. 3 for Chattogram and Cox’s Bazar seaports.

In a special bulletin issued on Tuesday (September 29), the Meteorological Department said the deep depression over the North Andaman Sea and adjoining Myanmar coast was moving north-northwestward and remained in the same area around midnight.

It is likely to move further north-northwestward and cross the coast over Myanmar and the Kyaikto area within the next two to three hours, the bulletin said.

The maximum sustained wind speed within 48 kilometres of the centre of the depression is around 50 kilometres per hour, which may increase to 60 kilometres per hour in gusts or squalls.

The sea remains rough near the centre of the depression. As a result, Chattogram and Cox’s Bazar seaports have been asked to replace warning signal No. 1 with local warning signal No. 3. Mongla and Payra seaports have been advised to maintain distant warning signal No. 1.

Fishing boats and trawlers operating in the North Bay of Bengal have also been advised not to venture into the deep sea or the northern part of the Bay until further notice.

Meanwhile, the weather forecast for Dhaka and adjoining areas from 7am for the following six hours said the sky may remain cloudy, while the weather is likely to remain mainly dry. Winds may blow from the west-northwest at a speed of 10 to 15 kilometres per hour. Daytime temperatures are expected to remain largely unchanged.

The temperature in Dhaka was recorded at 28.1 degrees Celsius at 6am today, while humidity was 81 percent.

In Dhaka, sunset is expected at 5:48pm today and sunrise at 5:50am tomorrow.