The coastal districts are Barguna, Bhola, Patuakhali, Barishal, Pirozpur, Jhalakati, Bagherhat, Khulna, Satkhira, said a Met office bulletin.
Maritime ports of Chattogram, Cox’s Bazar, Mongla and Payra have been advised to keep hoisted local cautionary signal no three as the monsoon depression over North-west Bay of Bengal and adjoining west Bengal & Bangladesh coast intensified into a deep depression over the same area.
It crossed west Bengal-Odisha coast(near digha) at 12pm on Thursday and now lies over gangetic West Bengal, North Odisha and adjoining area.
It is likely to move in a West/Northwesterly direction further inland.
Under its influence steep pressure gradient persists over North Bay and adjoining area.
Squally weather is likely to affect the Maritime Ports, North Bay and adjoining coastal areas of Bangladesh.
All fishing boats and trawlers over North Bay have been advised to remain close to the coast and proceed with caution till further notice.
They are also advised not to venture into the deep sea.