Maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to keep hoisted local cautionary signal No 3 as the well-marked low over Northwest Bay & adjoining Odisha-West Bengal coasts intensified into a monsoon depression.
It now lies over the same area at noon on Sunday, about 425 km West-Southwest of Chattogram, 415 km West of Cox's Bazar, 245 km west-southwest of Mongla and 265 km west-southwest of Payra, said a special bulletin of the Met Office.
It is likely to move northwestwards and intensify further.
Under its influence, squally weather may affect the Maritime Ports, North Bay and adjoining Coastal areas of Bangladesh.
Maximum sustained wind speed within 44 km of the depression centre is about 40 kph rising to 50 kph in gusts or squalls.
Sea will remain moderate near the depression centre.
All fishing boats and trawlers over North Bay have been advised to take shelter immediately and remain in shelter till further notice.