Maritime ports of Chittagong, Cox's Bazar, Mongla, and Payra have been advised to keep hoisted local cautionary signal No three following the monsoon land depression over north coastal Odisha and adjoining gangetic West Bengal.
It is likely to move in a northwesterly direction further inland and weaken gradually.
Steep pressure gradient persists over North Bay and adjoining coastal areas of Bangladesh, a bulletin of the Met Office said.
Squally weather is likely to affect the maritime ports, North Bay, and adjoining coastal areas.
All fishing boats and trawlers over North Bay have been advised to keep close to the coast and proceed with caution till further notice.
They are also advised not to venture into the deep sea.