The IMD weather forecast predicts very heavy rainfall in Tamil Nadu from October 15–17. Meanwhile, Delhi-NCR will see clear, dry weather until October 18 as seasonal transitions unfold.

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• Very heavy rain likely in Tamil Nadu from Oct 15 to 17
• Kerala and Mahé to get heavy rain on Oct 16–17
• IMD weather forecast signals start of northeast monsoon in South India
• Southwest monsoon to withdraw completely in next 24 hours
• Heavy rain already hit Tamil Nadu, Kerala, coastal Karnataka
• Easterly and northeasterly winds setting in over Bay of Bengal
• Flooding and waterlogging risk in Chennai and Puducherry
• IMD weather forecast defines very heavy rain as 115.6–204.4 mm
• Delhi-NCR to stay dry with clear skies till Oct 18
• Delhi temps: 31–34°C daytime, 16–20°C nighttime, misty mornings expected