New Delhi, Feb. 21 -- The India Meteorological Department (IMD) has issued a detailed advisory regarding a dual weather pattern: a cooling, wet spell in the south and a warming trend across the northern and western plains.

A significant weather system over the Bay of Bengal is bringing unseasonal rains to the southern parts of India.

Heavy rainfall, lightning, and gusty winds are forecast for Tamil Nadu, Puducherry, Karaikal, Kerala, and Mahe through Sunday.

Similar stormy conditions will hit south interior Karnataka on Saturday.

In Andhra Pradesh, the State Disaster Management Authority (APSDMA) predicts light-to-moderate rain and thunderstorms for southern districts, specifically Kadapa, Annamayya, Chittoor, and Tirupati.

In the re...