Bangladesh Meteorological Department (BMD) has asked maritime ports of Payra and Chattogram to hoist danger signal no seven and six for Cox's Bazar and five for Mongla as cyclonic storm ‘Hamoon’ has intensified into a severe cyclonic storm and may cross Barishal-Chattogram Coast near Bhola by Wednesday morning to noon as a cyclonic storm.

Met office in its latest bulletin number 10 said the coastal district of Barishal, Patuakhali, Bhola, Barguna, Pirozpur, Jhalakathi, Chattogram, Feni, Noakhali, Laxmipur, Chandpur and other offshore islands and chars will come under danger signal number seven.

 Under the peripheral effect of the severe cyclonic storm, heavy (44-88mm) to very heavy (up to 89 or above) rainfall with gusty or squally wind may continue over north Bay and coastal areas of Bangladesh.

According to the Bangladesh Meteorological Department, the severe cyclonic storm is about 445 kilometres west-southwest of Chattogram port, 410 kilometres west-southwest of Cox's Bazar port, 325 kilometres Southwest of Mongla port, and 310 kilometres southwest of Payra port.

"It is likely to move north-northeastwards and may cross Barishal-Chattogram coast near Bhola by Wednesday morning as a cyclonic storm," it said.

The bulletin said maximum sustained wind speed within 64 kilometres of the storm centre is about 90 kilometers per hour rising to 110 kilometres per hour in gusts/squalls.

"Sea will remain high near the severe cyclone centre."

The low-lying areas of the coastal districts of Cox's Bazar, Chattogram, Noakhali, Laxmipur, Feni, Chandpur, Barguna, Bhola, Patuakhali, Barishal, Pirojpur, Jhalakati, Bagerhat, Khulna, Satkhira and their offshore islands and chars are likely to be inundated by wind-driven surge of 3-5 feet height above normal astronomical tide.

Under the influence of the severe cyclone, Dhaka, Khulna, Barishal, Chattogram, and Sylhet divisions are likely to experience heavy to very heavy rainfall.

"Due to very heavy rainfall landslides may occur at places over the hilly regions of Cox's Bazar, Bandarban, Rangamati, Khagrachhari, and Chattogram."

All fishing boats and trawlers over north Bay and deep sea have been advised to remain in shelter till further notice.