Authorities have been asked to maintain cautionary danger signal ‘3’ at all sea ports of the country.
The met office said, that at 12pm on Sunday, the cyclone was located at 1,445 kilometres south-southwest of Chittagong port, 1,360 kilometres south-southwest of Cox’s Bazar and 1,390 kilometres south of Mongla port.
The forecast says the cyclone is likely to intensify and move in a north to north-westerly direction.
The maximum sustained wind speed was expected to rise to 88 kilometres per hour shortly. The sea is expected to remain very rough within the region.
Maritime ports of Chittagong, Cox’s Bazar and Mongla were advised to keep up caution danger signal ‘3’ and all fishing boats and trawlers over the North Bay were urged to remain close to the coast and avoid the deep sea.
The United States military said that the cyclone might sweep through the Rakhine province of Myanmar and adjacent coastal areas of Bangladesh by Tuesday afternoon.
The Joint Typhoon Warning Centre (JTWC) of the US Navy and US Air Force estimated that winds might touch up to 166 kilometres per hour at the time of the landfall of 'Mahasen'.
Bangladesh Meteorological Department Forecaster Hafizur Rahman told bdnews24.com that ESCAP typhoon committee named the cyclone ‘Mahasen’ after a King who ruled in Sri Lanka during third century.