Heavy rains in the Chennai City and other KTCC belts to continue for few more hours till evening


What a start it has been to City Monsoon, the observed rainfall till today morning shows the impact, north Chennai got while southern Chennai though it got rains, it missed out on the intense spells north Chennai got. The map and the data are detailed below –


24 hrs Rainfall in mm in KTCC on 01.11.2022, North Chennai special

(min 40 mm)

Kathivakkam (GCC) – 155
Perambur (GCC) – 141
New Manali Town (GCC) – 140
Tondairpet (GCC) – 140
Thiruvottiyur (GCC) – 132
Rehills (Revenue) – 127
Anna Nagar West (GCC) – 118
Royapuram (CMWSSB) – 119
Tondairpet (CMWSSB) – 111
Kolathur (GCC) – 109
Vilivakkam (IMD) – 102
Gumidipoondi (Revenue) – 102
Ice House (GCC) – 100
Ponneri (Revenue) – 99
Rippon Building (GCC) – 97
Teynampet (GCC) – 97
Royapuram (GCC) – 84
Kodambakkam (GCC) – 84
Nungambakkam (IMD) – 80
Shenoy Nagar (GCC) – 80
Cholavaram Lake (Revenue) – 79
Nandanam (IMD) – 73
T.Nagar (CMWSSB) – 72
Alwarpet (CMWSSB) – 71
Maduravoyal (GCC) – 69
Adyar (GCC) – 69
Adyar Eco Park (GCC) – 65
Ambattur (GCC) – 55
Alandur (GCC) – 55
Valsaravakkam (GCC) – 54
Velappanchavadi (IMD) – 47
Avadi (Revenue) – 46
Velacherry (GCC) – 46
Alandur (CMWSSB) – 45
Thamaraipakkam (Revenue) – 44
Valsaravakkam (CMWSSB) – 43
Uthukottai (Revenue) – 43
Perungudi (GCC) – 43
Guindy (IMD) – 42
Meenambakkam (IMD) – 41
Mugalivakkam (GCC) – 40
Madipakkam – 40

A KTCC special is clearly seen, when it rains here, most other places will remain clam, except for Kumari.  Kanyakumari got intense Thunderstorms  and the rainfall recorded are as follows

Thuckalay – 82
Eraniel – 63
Chittar II Dam – 55
Perunchani – 47
Colachel – 46
Suralacode – 46
Puthan Dam – 45
Pechiparai – 27
Kannimar – 21
Nagercoil – 20

Coming today after 8.30 am, the rains have been relentless again but the Southern Chennai, OMR, ECR have been getting very good rains and the rains have slowly shifted upto the city. Many places have already recorded 50-70 mm from 8.30 am today which would end as tomorrow 24 hrs rainfall at 8.30 am. Cumulatively, the rainfall has touched 150 mm in most places from yesterday night.

What happens next for Chennai and KTCC till tomorrow ?

Today to tomorrow morning is key time and the present rains are expected to sustain for 3-4 more hours and South Chennai as a nature balancing act is getting rains from the morning compared to north chennai places. A perfect balancing act from the nature.

As of now, the water levels in the dams are safe and have sufficient cushion, the temporary water stagnation in the roads will be the hardship. That too provided time and break in rains will drain away.

Image courtesy IMD Radar

Rains to shift where in the coming days?

Other districts such as Nagai, Tiruvarur, Pudukottai, Sivaganga, Ramanthapuram, Tuty, Nellai etc and south TN will be in action. When ever a circulation moves into Gulf of Mannar to Comorin sea, South TN and delta will get good rains, even cuddalore too.

Is it all over for Chennai from tomorrow – No, regular monsoon rains and some spells at times will continue, not these times of widespread ones, even if rains heavily it will be in isolated places.

Dedicated rainfall forecast for Chennai Basin by our Govt.

Do visit the rainfall maps and forecast maps prepared by our Government of Tamil Nadu with all rainfall data and stats and easy to understand. The website is a work in progress and will be made more user friendly as it evolves  – https://www.chennaifloodsdss.in/


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