Cyclonic storm Bulbul over Khulna and adjoining northwestern part of Bangladesh moved slowly northwestwards and weekend further into a deep depression, reports UNB.
The depression was lying over Bagerhat, Barishal and Patuakhali regions at 6:00am on Sunday, said a Met office bulletin on Sunday adding that it is likely to move in a northwesterly direction further and weaken gradually.
Under its influence step pressure gradient persists over North Bay and southern part of the country.
"The maritime ports of Mongla and Payra have been advised to lower great danger signal No 10 and hoist local cautionary signal No 3 instead of it ," the bulletin said.
The maritime port of Chattogram has been advised to lower great danger signal No 9 and hoist local cautionary signal No 3 while the maritime port of Cox's Bazar has been advised to lower local warning signal No 4 and hoist local cautionary signal No 3.
Under the influence of the deep depression, the coastal districts of Chattogram, Noakhali, Laxmipur, Feni, Chandpur, Barguna, Bhola, Patuakhali, Barishal, Pirojpur, Jhalakati, Bagerhat, Khulna, Satkhira, Faridpur, Madaripur, Cumilla, Dhaka, Sylhet and Mymensingh are likely to experience wind of 50-60 KPH in gusts/squalls with heavy to very heavy rains during the passage of the deep depression.
All fishing boats and trawlers over the north bay have been advised to remain in shelter till evening today.