According to an IMD's rainfall update, very heavy rainfall was recorded in several areas, including Nagapattinam (19 cm) and Chennai (13 cm), from 8.30 am on November 26 until 8.30 am the following day.

Chennai and surrounding regions have been experiencing continuous rainfall since Tuesday, with authorities declaring a yellow alert as Cyclone Fengal intensifies.

Schools in Tiruchirappalli, Nagapattinam, Mayiladuthurai, and Tiruvarur are closed in anticipation of heavy rains.

The IMD forecasts heavy to very heavy rainfall in coastal Tamil Nadu and Puducherry on November 27, with isolated areas receiving extremely heavy rainfall. The downpour is likely to persist from November 28 to 30,

Giving further weather updates, the Regional Meteorological Centre (RMC) in Chennai said that the depression over the southwest Bay of Bengal has intensified into a deep depression and is likely to intensify further into a cyclonic storm on Wednesday.

A total of 17 disaster response teams, comprising NDRF and state personnel, have been dispatched to vulnerable areas such as Chennai, Mayiladuthurai, Nagapattinam, Cuddalore and Thanjavur districts.

Cyclone Fengal, intensifying in the Bay of Bengal, is projected to hit Tamil Nadu's coast after grazing Sri Lanka. Heavy rainfall has already impacted crops, prompting school closures in several districts.

IMD issues red alert as strong winds in coastal areas of Tamil Nadu likely to intensify into cyclone storm. Pamban witnessed strong winds as deep depression forms over the southwest Bay of Bengal on 27th November.