Though there is a low-pressure area in the Bay of Bengal, it did not undergo a round of intensification on Saturday. India Met Department expects it would so only by Monday. All indications continue to suggest that the system would take the whole of this week to wind its way towards the Tamil Nadu/Sri Lanka coast. This should help it push in the rains to interior Tamil Nadu. Neighboring Kerala will have already received some showers from a rain wave emerging from seas south of Sri Lanka.
In its forecast, the Met Department said thundershowers would break out over extreme south peninsular India from Thursday. The rain may scale up later over coastal and south Andhra Pradesh and Tamil Nadu.