, Oct. 26 -- Cyclonic Storm Arnab is likely to intensify into a severe cyclonic storm over the west-central Bay of Bengal by Monday midnight, Bangladesh Meteorological Department (BMD) said.

The deep depression over the east-central Bay of Bengal and adjoining south-east Bay moved north-westwards and intensified into Cyclonic Storm Arnab, said a special weather bulletin of the BMD on Monday morning.

At 6:00am on Monday, the storm was centred over the east-central Bay and adjoining west-central Bay, near latitude 15.4degN and longitude 89.0degE.

It was about 820km south-west of Chattogram, 745km south-west of Cox's Bazar, 785km south of Mongla and 745km south of Payra, the bulletin said.

The storm is likely to move west-north-westwards...