STOCK MARKET BSE NSE

Another bout of heavy rains heading Chennai's way

IMD has issued a red alert for Chennai, Tiruvallur, Kancheepuram and Ranipet districts on November 19.

Published: 15th November 2021 06:32 PM  |   Last Updated: 16th November 2021 05:59 PM   |  A+A-

Chennai rains, Chennai monsoon

Representational image. (File Photo | R Satish Babu, EPS)

Express News Service

CHENNAI: At a time when Chennaites are yet to completely recover from flooding caused due to recent incessant rains, another rain-filled weather system is heading towards north Tamil Nadu and could dump heavy to very heavy rains over Chennai and neighboring districts between November 17-19. 

The regional meteorological centre here initially issued an Orange Alert, meaning rains ranging from 12 cm to 20 cm, for Tiruvallur, Chennai, Kancheepuram, Chengalpattu, Ranipet, Vellore, Villupuram, Tiruvannamalai, Kallakurichi, Cuddalore, Mayiladuthurai and delta districts.   On November 19, a red alert has been been issued for Chennai, Tiruvallur, Kancheepuram and Ranipet districts

In the mid-day forecast bulletin on Monday, the Indian Meteorological Department said a low-pressure area lies over the north Andaman Sea and neighborhood. It is likely to move west-northwestwards and become well marked over east-central and adjoining southeast Bay of Bengal during the next 48 hours. Thereafter, it is likely to continue to move nearly westwards and reach west-central and adjoining southwest Bay of Bengal off south Andhra Pradesh-north Tamil Nadu coasts on November 18.

ALSO READ | Sewage mixed drinking water threatens health of residents in this part of Chennai

All the weather models are showing massive rains north of Chennai starting November 17 evening. 

Initially, the models suggested the system would intensify into a cyclone and head towards Visakhapatnam and Odisha coast, but now it will only be a well-marked low pressure coming towards north Tamil Nadu and south Andhra Pradesh. "If it weakens further, Chennai would get bulk of the rains," said K Srikanth, independent weather blogger who runs the popular ChennaiRains Twitter handle.  

Drone survey 

To assess the vulnerable areas, N Subbaiyan, director of Tamil Nadu State Disaster Management Authority, told The New Indian Express a drone survey was carried out to identify lakes and other water bodies that can breach and cause flash floods.  

"We are mobilizing and keeping ground teams on standby to meet any eventuality based on sound planning. The past few bright and sunny days provided much-needed breathing space. We have received the alert and all the precautionary measures are taken," a top official said.

Another important lesson that was learned from past disasters was to regulate the flood water discharge from reservoirs in such a way that water drains smoothly causing minimal trouble to people living downstream. 

"We are maintaining around 75 percent storage in most of the reservoirs and once the meteorological department confirms the location and intensity of rains, we will adjust the outflows accordingly," he added.



Comments

Disclaimer : We respect your thoughts and views! But we need to be judicious while moderating your comments. All the comments will be moderated by the newindianexpress.com editorial. Abstain from posting comments that are obscene, defamatory or inflammatory, and do not indulge in personal attacks. Try to avoid outside hyperlinks inside the comment. Help us delete comments that do not follow these guidelines.

The views expressed in comments published on newindianexpress.com are those of the comment writers alone. They do not represent the views or opinions of newindianexpress.com or its staff, nor do they represent the views or opinions of The New Indian Express Group, or any entity of, or affiliated with, The New Indian Express Group. newindianexpress.com reserves the right to take any or all comments down at any time.

flipboard facebook twitter whatsapp