The North-East monsoon has not been able to rev up to its true potential, hampered even after 10 days after it made a delayed onset over the South Peninsula, mainly on account of lack of adequate number of supporting systems in the form of low-pressure areas or depressions.

The IMD has forecast that the rainfall may gradually pick up after next two days along the Tamil Nadu coast and spread thin over the rest of South Peninsular India. Coastal Tamil Nadu, including Chennai, may receive better organised rain from Saturday, Diwali day.