New Delhi, Oct. 24 -- The India Meteorological Department (IMD) has forecast "extremely heavy rainfall" across south peninsular India following the onset of the Northeast monsoon over Tamil Nadu, Puducherry and Karaikal, Coastal Andhra Pradesh, Rayalaseema, South Interior Karnataka, and Kerala and Mahe.

In its latest bulletin, the weather agency also warned that a low-pressure area over the south Bay of Bengal is expected to intensify into a cyclonic storm by October 26. The system is projected to move westward and northward toward the north Andhra Pradesh and south Odisha coasts.

A low-pressure area over the Bay of Bengal, which is likely to intensify into a cyclonic storm, will bring heavy rainfall to the coastal and western districts...