The forecasted heavy rainfall and thunderstorms in Tamil Nadu, Kerala, and Andhra Pradesh could lead to localised flooding, waterlogging, and disruptions in daily activities. Gusty winds may pose risks to weak structures and trees. In northern regions like Uttarakhand, Himachal Pradesh, and Jammu & Kashmir, rainfall may affect travel and outdoor activities. However, no significant weather activity is expected in Delhi and surrounding areas, ensuring a dry Diwali celebration.