Cautionary signal “3” has been sounded for all ports by the Met department and fishermen have been asked to stay away from the sea.
Met’s weather expert Hafizur Rehman told bdnews24.com on Saturday that cyclone has been christened “Mahasen”.
All cyclones are named from a list drawn up and periodically updated.
‘Mahasen’ is a Sri Lankan expression.
Hafizur Rehman said the depression in south-east Bay of Bengal has moved northwest as it intensified into cyclone ’Mahasen’.
He said it is expected to move further north and northwest.
Met department says the depression, at 6pm Saturday, was centred about 1600 kms South-Southwest of Chittagong Port, 1510 kms South-Southwest of Cox’s Bazar Port and 1590 kms South-Southeast of Mongla Port.
The wind speeds have gone up from 62 to 88 kms per hour.
Fishing trawlers and boats have been asked to stay close to the coast and avoid deep sea.
Cautionary danger signal “3” has been sounded at Chittagong, Cox’s Bazar and Mongla as the sea was getting turbulent.
The US military had already warned of a 'severe cyclonic storm' likely to hit coastal regions of Myanmar's Rakhine state and adjoining areas of Bangladesh.
A “severe cyclonic storm” is expected to make landfall on Tuesday night, the US Navy and Air Force’s Joint Typhoon Warning Centre forecasts.
Based on the forecast, an alert has been put out by the Tropical Storm Risk, a UK-based storm forecaster.
The wind force could reach 166 km/per hour for a while during the cyclone, while wind gusts may be even stronger, the alert said.