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Heavy Rains Lash Chennai As Northeast Monsoon Activates Across Tamil Nadu

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News18•18-10-2026, 09:45
Heavy Rains Lash Chennai As Northeast Monsoon Activates Across Tamil Nadu
- •Heavy rains lashed Chennai and neighbouring districts, marking the onset of the northeast monsoon's first spell according to the Regional Meteorological Centre.
- •North Chennai recorded between 6 cm and 10 cm of rainfall in less than an hour, causing waterlogging and traffic disruptions in several localities.
- •Uthiramerur in Kancheepuram district received the highest rainfall of 15 cm, while Manalurpet in Kallakurichi recorded 12 cm.
- •The heavy showers are driven by an upper-air cyclonic circulation and a trough, prompting the IMD to issue a yellow alert for 17 districts until October 23.
Key Questions Answered
The heavy downpours were caused by an upper-air cyclonic circulation over north Tamil Nadu and coastal Andhra Pradesh, combined with a trough extending from Lakshadweep to the southwest Bay of Bengal.
Uthiramerur in Kancheepuram district recorded the highest rainfall of 15 cm, while Manalurpet in Kallakurichi received a 12 cm downpour during the 24-hour period ending on Saturday evening.
The India Meteorological Department issued a yellow alert for 17 districts, including Chennai, Tiruvallur, Chengalpattu, Kancheepuram, Cuddalore, and Tiruchi, effective until October 23.


