Under the influence of the well-marked low and steep pressure gradient, the low-lying areas of the coastal districts and their offshore island and chars are likely to be inundated by the wind driven surge height of 2-4 feet above normal astronomical tide. These districts are Satkhira, Khulna, Bagerhat, Jhalakathi, Pirojpur, Barguna, Patuakhali, Bhola, Barishal, Laxmipur, Chandpur, Noakhali, Feni, Chattogram and Cox’s Bazar. Read: Dhaka’s air quality now 'moderate' Maritime ports of Chattogram, Cox’s Bazar, Mongla and Payra have been advised to keep hoisted local cautionary signal No 3. The depression over coastal Odisha and the adjoining Northwest Bay moved westwards and weakened into a well-marked low. It now lies over Chhattisgarh and adjoining areas of India, according to a special bulletin of the Met office. It is likely to move northwestwards further. Under its influence, steep pressure gradient persists over the North Bay and adjoining coastal areas of Bangladesh. Squally weather may affect the maritime ports, the North Bay and the adjoining coastal areas of Bangladesh, as per the bulletin. All fishing boats and trawlers over the North Bay have been advised to remain close to the coast and proceed with caution until further notice.