Chennai experienced heavy rain overnight due to the conditions as a prelude to the forming of a low pressure over the Bay of Bengal. Private weather bloggers said this was ‘heaviest rain’ the city has experienced since 2015. Nungambakkam received 215.3 mm of rain while Meenambakkam received 113.6 mm by 8.30am on Sunday.
Rainfall in other areas till 8.30am: Anna University 164mm, MRC Nagar 171mm, Taramani 127.5, YMCA Nandanam 157.5, ACS Medical College 103.5mm, Goodwill School Villivakkam 200mm, Puzhal 146.5mm and Ennore Port 100mm.
“In Arabian Sea there is a Low Pressure and In Andaman sea, the new guy which will pound us next week is there(sic),” tweeted Pradeep John.
As heavy showers battered the city, Tamil Nadu Chief Minister MK Stalin visited the rain-hit areas of north Chennai.
Netizens also took to Twitter to share scenes of heavy waterlogging, especially in the north and central Chennai.
People in many areas of the city have woken up to flooded streets. Scenes from Mambalam show evacuations by boat of people needing emergency care from a private hospital in the area after the hospital lost power connection. Flooding is being reported in Mylapore, Velachery, T Nagar and other parts of the city.
The EMU suburban train service between Beach Station and Egmore has been stopped as there is flooding on the tracks.
The Regional Meteorological Centre in Chennai issued a statement that an upper air cyclonic circulation lies over southeast Bay of Bengal and adjoining equatorial Indian ocean extending up to 4.5 km above mean sea level. This is expected to cause a low-pressure area over southeast Bay of Bengal, likely on November 9, which may cause increased rainfall in the next 48 hours. Coastal Tamil Nadu will receive heavy rainfall and squally winds from November 9 to 12.
The Tiruvallur Collectorate announced earlier today that 3,000 cubic feet per second of water will be released from Poondi reservoir from 09:00 am onwards. Similarly 1,000 cubic feet per second of water is to be released from Puzhal Lake. 500 cubic feet per second will be released from Chembarambakkam Lake this afternoon from 1:30pm onwards.
In 2015, it was the failure to release water from the Chembarambakkam Lake in a timely manner that played a huge role in the disastrous flooding. TNM had reported then that according to a Comptroller and Auditor General of India (CAG) report, just Chembarambakkam Lake had been enough to sink Chennai. The CAG report pointed to glaring errors such as “imprudent and injudicious release of water”, absence of scientific real-time flood forecasting and communication facilities, and lack of monitoring in release of water at the reservoir.
