Maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to keep hoisted local cautionary signal No three as the low-pressure area over northwest bay and adjoining southern part of Bangladesh intensified into a well-marked low.
 
 It is now lies over Gangetic West Bengal and adjoining area. Under its influence deep convection is taking place over North Bay, said a special bulletin of Met office.
 
 Gusty or squally weather may affect the maritime ports, North Bay and adjoining coastal areas of Bangladesh
 
 All fishing boats and trawlers over the North Bay have been advised to remain closed to the coast and proceed with caution till further notice.