The well-marked low over East-central Bay and adjoining North Andaman Sea moved west northwestwards and intensify into a depression and lies over east-central Bay and adjoining west-central Bay at 6:00 am on Sunday. It is likely to intensify further and move in a west-northwesterly direction, the Met Office said.
Bangladesh Meteorological Department issued a warning message in this regard on Sunday.
The maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to hoist distant cautionary signal number one after a low over East-central Bay and adjoining North Andaman Sea intensify into a depression.
Maximum sustained wind speed within 44 km of the depression centre is about 40 kph rising to 50 kph in gusts or squalls.
All fishing boats and trawlers over the North Bay and deep sea have been advised not to come close to the coast and proceed with caution.
They are also All fishing boats and trawlers over the North Bay and deep sea have been advised not to venture into the deep sea.
Meanwhile, the Indian Meteorological Department (IMD) said the depression in the East-Central Bay of Bengal has intensified into a cyclone.
It is likely to intensify further and to hit the coast of Andhra Pradesh in India on Monday morning. Under the influence of the cyclone, heavy rainfall may occur.