The depression over Eastcentral Bay and adjoining Southeast Bay moved Southeastwards over the same area and may intensify into a deep depression on Sunday.
It was about 785 km South of Chattogram, 700 km South of Cox's Bazar, 820 km South of Mongla and 760 km South of Payra at 6 am.
It is gradually moving west-northwestwards and likely to intensify into a very severe cyclonic storm and cross Andhra Pradesh coasts by October 28.
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.
Maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to keep hoisted distant cautionary signal No 1
All fishing boats and trawlers over North Bay have been advised to come close to the coast and proceed with caution till further notice.