Maritime ports of Chattogram and Payra have been advised to hoist danger Signal 7 while Cox's bazar and Mongla ports have been asked to hoist danger Signal 6 and 5 respectively as cyclonic storm "Hamoon" has intensified into a severe cyclonic storm over the northwest Bay.

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 tomorrow 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.

Photo: Mokammel Shuvo

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

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The BMD bulletin said the coastal districts of Barishal, Patuakhali, Bhola, Barguna, Pirojpur, Jhalakati, Chattogram, Feni, Noakhali, Laxmipur, Chandpur, and their offshore islands and chars will come danger signal no seven.

It said that due to the cyclonic storm, heavy to very heavy rainfall with gusts/squally wind may continue over north Bay and coastal areas of Bangladesh.

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.