Dam levels in Tamil Nadu and Chennai – A good year for Chennai & Mettur

W-NW movement cyclones are always rain filled cyclones unlike the pure west movement ones like Thane, Gaje or Vardah. From morning Chennai is seeing gusty winds though we expected gusts to touch 100 km/hr, a maximum of 70 km/hr is recorded at Meenambakkam at morning. But it is not the winds, it is the rains which caused maximum trouble to the people.

Tambaram topped Tamil Nadu charts with 314 mm rainfall in 24 hours, rainfall was also massive in Pondy, Cuddalore and Villupuram districts.

Next Low will form soon in 4 days and might become Depression too in Bay of Bengal. Lets hope the next one goes to Delta as a weak one, as they are due for rains this NEM. And If it moves near Delta the central interiors such as Namakkal, Salem, Erode, Trichy, Dindigul and Pudukootai too will get good rains. They have missed good rains so far this NEM.

Chennai has reached its full NEM quota of 840 mm rainfall for NEM and from here on any more rainfall will lead too excess and with a very good December ahead, we might go well into excess. A very good NEM for Chennai with all water supply lakes having good water and water released from Chembarabakkam too. Plentiful we have this year.

The easterlies continue to be active as Nivar moves in, we might get some rains in between too with the convergence close to coast in morning areas in next few days.

Chennai water supply lakes will see good inflows today and tomorrow as it takes time for water to come as runoff from various places. After that we can see drop in the inflows.

People may not be aware, that many officials from GCC, Revenue, Disaster Agency, TNEB, WRD,PWD and Police did not sleep and made sure nothing major happened. Our heartfelt thanks to them too.

Rainfall from Cyclone Nivar in 24 hrs in Tamil Nadu on 26.11.2020

KTCC region station topped the charts again.

in mm

KTCC (Kancheepuram, Tiruvallur, Chengalpet and Chennai)

Tambaram – 314
DGP Office (Mylapore) – 264
Shollinganallur – 220
Thamaraipakkam – 191
Pallipattu – 175
Cholavaram – 159
Poonamallee – 154
Ambattur – 150
Tiruvallur – 147
Mahabalipuram – 147
Gumdipoondi – 145
Madurantagam – 141
Anna University – 139
Chembarabakkam – 139
Kancheepuram – 135
Alandur – 133
Redhills – 131
KK Nagar – 136
Chengalpet – 130
Tiruttani – 129
Poondi – 120
Koratur Anaicut – 117
Ayanavaram – 111
Sriperumbudur – 107
Tirukalakundram – 147
Ponneri – 103
Taramani – 102
Perambur – 100
Uthiremerur – 97
Cheyyur – 96
Thiruvalangadu – 93
Somangalam – 90
Kelambakkam – 86
Thiruporur – 86
Nungambakkam – 84
Hindustan University – 83
R.K.Pet – 80
Uthukottai – 75
Tondairpet – 70
Ennore – 69
Walajabad – 58
Kolapakkam – 58

Others (min 40 mm & above)

Pondy & Karaikkal

Pondy – 300
Karaikkal – 96

Cuddalore

Cuddalore Collectorate – 279
Cuddalore – 271
Vanamadevi – 192
Parangipettai – 184
Kothavacherry – 141
Bhuvanagiri – 136
Annamalai Nagar – 134
Kudithangi – 131
Vadakuthu – 131
Chidambaram – 128
Sethiyathope – 112
Panruti – 106
Lalpet – 89
Kuppanatham – 83
Vridhachalam – 83
Kilacheruvai – 77
Me.Mathur – 72
Tozhudur – 72
Lakkur – 71
Pollandurai -70
Srimushnam – 69

Villupuram

Villupuram – 279
Koliyanur – 244
Valavanur – 242
Kedar – 190
Mudiyampakkam – 170
Kanjanur – 169
Soorapattu – 168
Thiruvennainallur – 162
Arasoor – 160
Nemoor – 160
Valathy – 160
Gingee – 154
Mugaiyur – 153
Manampoondi – 152
Semmedu – 150
Anandhapuram – 149
Tindivanam – 141
Vallam – 139
Vanur – 137
Marakkanam – 131

Tiruvannamalai

Chetpet – 130
Kilpennathur – 119
Vandavasi – 112
Vembakkam – 110
Kalasapakkam – 99
Jamunamarathur – 92
Polur – 89
Arani – 84
Tiruvannamalai – 70
Cheyyar – 65
Thandrampattu – 62

Tirupattur

Vadapudupattu – 119
Ambur – 74
Alangayam – 50
Vaniyambadi – 40

Kallakuruchi

Ulundurpet – 121
Manalurpet – 104
Tirukkoilur – 93
Rishivandhiyam – 81
Kalayanallur – 80
Moongilthuraipattu – 80
Eraiyur – 78
Keelapadi – 76
Madampoondi – 74
Thirupalapandal – 68
Thiyagadurgam – 65
Sulanguruchi – 60
Ariyalur – 60
Virgavur – 55
Kallakuruchi – 43

Ranipet

Arakonnam – 107
Arcot – 102
Sholingur – 96
Kalavai – 80
Kaveripakkam – 74
Wallajah – 60

Vellore

Vellore City – 82
Ammundi – 82
Katpadi – 65
Melalathur – 59
Ponnai Dam – 57

Nagapattinam & Mayiladathurai

Kollidam – 137
Sirkali – 117
Mayiladuthurai – 88
Manalmedu – 85
Tharangambadi – 71
Nagapattinam – 63
Thirupoondi – 44
Thalanayar – 40

Thanjavur

Lower Anaicut – 85
Manjalaru – 78
Mannargudi – 63
Kumbakonam – 59
Papanasam – 51
Thiruvidaimaruthur – 50
Neivasal Thenpathi – 46
Ayyampettai – 41
Thanjavur – 40
Madukkur – 40
Thiruvaiyaru – 40
Vettaikadu – 40

Tiruvarur

Kudavasal – 79
Needamangalam – 69
Nannilam – 63
Mannargudi – 63
Tiruvarur – 56

Ariyalur

Sendurai – 68
Ariyalur – 62
Jayankondam – 55

Perambalur

Labbaikudikadu – 60
Eraiyur – 60
Puduvettakudi – 43

KTCC (Chennai & 100 kms) Rainfall on 25.11.2020

in mm

Nungambakkam – 162
Chennai Collectorate – 148
Meenambakkam – 147
Shollinganallur – 145
Taramani – 144
Guindy – 143
Myalpore DGP Office – 141
KK Nagar – 137
Somangalam (West Tambaram) – 125
Mahabalipuram – 121
Alandur – 120
Hindustan University (Kelambakkam) – 118
Puzhal – 117
Tambaram – 115
Tondiarpet – 113
Ambattur – 110
Ayanavaram – 105
Perambur – 104
Chembarabkkam Lake – 101
Redhills Lake – 100
Kolapakkam – 98
Poonamalle – 97
Ennore – 93
Thiruporur – 92
Cholavaram Lake – 87
Kelambakkam – 79
Madurantagam – 79
Sriperumbudur – 66
Chengalpet – 64
Koratur Anaicut – 58
Thirukkalukundram – 54
Cheyyur – 50
Ponneri – 44
Gummidipoondi – 41
Thamaraipakkam – 37
Uthieramerur – 37
Tiruvallur – 36
Poondi – 27
Kancheepuram – 21
Thiruvalangadu – 20
Walajabad – 20
Vembakkam – 20

Lets catch up in few days break