Cyclone Bulbul may cross the Southwest coastal areas of Bangladesh by tomorrow (Saturday).
The maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to keep hoisted cautionary signal No. 4, according to the Met office.
"The cyclone may hit Khulna-Barishal coastal belt of Bangladesh if it stays on its current path," Meteorologist Abul Kalam Mollick told BBC.
Loading and unloading of goods from mother vessels at the outer anchorage of Chattogram port remain suspended, according to Water Transport Cell and Chittagong Port Authority.
Besides, Bangladesh Water Development Board has cancelled the weekly holidays of all the employees of the board in the coastal districts.
Light or moderate rains are likely in Khulna, Chattogram, Dhaka, Rajshahi, Mymensingh and Sylhet till Monday.
The cyclone is very likely to intensify further by early morning of November 9. It is very likely to re-curve northeastwards and cross West Bengal - Bangladesh Coasts between Sagar Islands (West Bengal) and Khepupara across Sundarbans delta during the early hours of November 10 with maximum sustained wind speed of 110-120 kmph gusting to 135 kmph, says India Meteorological Department.