Maritime ports of Chittagong, Cox’s Bazar, Mongla and Payra have been advised to hoist local cautionary signal no. 3 as a low lies over the northeast bay, UNB reports. Under its influence deep convection is taking place over the North Bay, said a Met office bulletin. Squally weather may affect the maritime ports, North Bay and adjoining coastal areas of Bangladesh. All fishing boats and trawlers over North Bay have been advised to keep close to the coast and proceed with caution until further notice.