The maritime ports of Chattogram, Cox's Bazar, Mongla and Payra have been advised to hoist local cautionary Signal No 3 as a low pressure over the North Bay turned into a well-market low.
“The low pressure over the North Bay and adjoining area now lies over South-western part of Bangladesh and adjoining area as a well marked low,” said a Met Office bulletin.
Read:Maritime ports asked to hoist cautionary signal 3
Under its influence deep convection is taking place and steep pressure gradient lies over North Bay and adjoining areas, it said.
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 remain close to the coast and proceed with caution till further notice.
Read: Cautionary signal 3 for Bangladesh maritime ports
According to the regular weather bulletin, light to moderate rain or thunder showers accompanied by temporary gusty or squally wind is likely to occur at most places over Rajshahi, Khulna, Barishal, Chattogram, Dhaka and Sylhet divisions and at many places over
Rangpur and Mymensingh divisions with heavy to very heavy falls at places over the country.
Day and night temperature may fall slightly over the country.
Read: Maritime ports asked to lower signal
The Bay depression is likely to move Northwestwards. The axis of monsoon trough runs through Rajsthan, Hariyana, Uttar Pradesh, Bihar, Gangetic West Bengal, the centre of the well-marked low to Assam.
One of its associated troughs extends up to North Bay.