Dhaka, Oct. 2 -- A deep depression over the Bay of Bengal is set to bring heavy to very heavy rainfall across Bangladesh, with risks of flash floods, landslides, and waterlogging in major cities.

In a special weather bulletin issued on Thursday afternoon, the Bangladesh Meteorological Department said the system is moving north-northwest and is expected to cross the Odisha-Andhra coast between Gopalpur and Paradip around 9pm.

At noon, the storm centre was located 835km southwest of Chattogram seaport, 810km from Cox's Bazar, 665km from Mongla, and 685km from Payra, as it hovered over the northwest Bay and adjoining west-central Bay.

The system has intensified sea conditions, generating strong pressure gradients over the northern Bay and...