Kerala Rainfall on 12 to 15th May 2021
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Burevi weakened as expected, Massive rains in Delta and Cuddalore etc. Semma rains expected today too.
Burevi is no more a cyclone and weakened as Deep Depression and is lying in Gulf of Mannar, it will stay there itself for a while spinning bands in Delta and North TN throughout the day. So massive rains expected in Tamil Nadu again today. With two more days of rains left from dying Burevi, we are going to see floods in some parts of the State. Been saying from the 1st day. Gulf of Mannar is perfect location for massive rains. Historically they have been and they have been proved in the past 2 days too and will continue for further 2 days. Further, winds were never a threat and rains has been from Burevi.
This rains are even better than Nivar and these regions will get massive rains today too. Gulf of Mannar circulation is proving once again why it is ideal location for Tamil Nadu for widespread rains. Cuddalore many stations 200, Thanjavur smashed, Nagai smashed. Thoothukudi has joined now. Delta belt from Defecit rains till yesterday has now all come into normal category and tomorrow might even go into positive zone. This is why NEM is so difficult to predict. One system rainfall will swing the numbers. Tamil Nadu as a whole will be moving into positive zone. Remember more rains expected in 2nd half of December.
Chennai – This will be the best spell for Chennai, we have crossed 900 mm for the season and now targeting 1000 mm for NEM, a dream monsoon for us. Today is the best day for Chennai and we will see on and off rains and the present clouds is itself giving good rains.
Tamil Nadu Today – Massive rains is expected again with the Burevi remaining in same place. Central Tamil Nadu districts, Delta will all be getting massive rains. Even West Tamil Nadu districts such as Tiruppur Dindigul, Coimbatore will be getting good rains as system is expected to move west later in the day. Overall cant single out any one district. Entire TN will be getting rains today.
Kanyakumari and Tirunelveli – Has been missing the action, they will get their share of rains too today or tomorrow. There is not much wind threat like Ockhi.
Rainfall in Tamil Nadu on 03.12.2020
in mm (min 40 mm) – The list is so big and many districts such as Kallakuruchi, Tiruvannamalai, Ranipet, Vellore, Dindigul, Karur all have got 20-30 mm rains.
Nagapattinam
Vedaranyam – 197
Thalanayar – 149
Thirupoondi – 147
Nagapatitinam – 143
Mayiladuthurai – 123
Sirkali – 100
Manalmedu – 75
Anaikaranchatram -73
Tharangambadi -54
Ramanathapuram
Rameswaram – 120
Mudukulathur – 105
Thangachimadam – 85
Pamban – 62
Mandapam – 58
Thoondi – 41
Vattanam – 40
Thiruvarur
Thiruthuraipoondi – 130
Kudavasal – 100
Thiruvarur – 92
Nanilam – 83
Valangaiman – 75
Manargudi -71
Needamangalam – 65
Pandavaiyaru -60
Muthupet – 42
Thanjavur
Adirampatnam – 100
Manjalaru – 98
Pattukkottai – 86
Thiruvidaimaruthur – 80
Valangaiman – 76
Ayyampettai – 67
Papanasam – 66
Kumbakonam – 61
Thanjavur PTO – 61
Orathanad – 60
Peravurani – 56
Thanjavur – 56
Vallam – 55
Budalur – 42
Thiruvaiyaru -40
Villupuram
Marakkanam – 82
Vanur – 71
Tindivanam – 63
Koliyanur – 52
Valvanur – 50
Mudiyampakkam – 48
Villupuram – 43
Anandhapuram – 40
Cuddalore
Kattumannarkoil – 72
Parangipettai – 67
Cuddalore – 66
Annamalai Nagar – 65
Kothavacherry – 59
Me.Mathur – 56
Bhuvanagiri – 56
Kilacheruvai – 55
Vanamadevi – 52
Kurinjipadi – 51
Sethiyathope – 50
Lalpet – 50
Kudithangi – 49
Chidambaram – 47
Vadakuthu – 46
Pollandurai – 46
Panruti – 45
Kuppanatham – 43
Srimushnam – 41
Veppur – 40
Perambalur
Agaram Segoor – 64
Perambalur – 49
Eraiyur – 44
Puduvettaikadai – 40
Pudukottai
Manamelkudi – 56
Meemisal – 56
Adanakottai – 48
Perungalur – 47
Maliyur – 46
Arathangi – 46
Nagudi – 40
Others
Karaikkal, Karikkal – 164
Pondy, Pondy – 76
Thirumanur, Ariyalur – 43
Jayankondam, Ariyalur – 40
Rainfall in KTCC (Chennai and Surrounding regions) on 03.12.2020
in mm
Tambaram IAF – 90
Thirukazhukundram – 78
Kelambakkam – 72
Tambaram Taluk Office – 71
Taramani – 68
Mahabalipuram – 63
Madurantagam – 62
Thamaraipakkam – 61
Thiruporur – 59
Ponneri – 57
Hindustan University (Kelambakkam) – 53
Cheyyur – 54
Meenambakkam – 46
Guindy – 44
Tiruttani – 43
Puzhal – 40
Mylapore – 38
Alandur – 38
Tondiarpet – 38
Arakkonam – 37
Ambattur – 36
Chengalpattu – 36
Tiruvallur – 36
Ennore – 35
Nungambakkam – 34
Uthukottaoi – 34
Perambur – 32
KK Nagar – 32
West Tambaram (Somangalam) – 31
Uthiramerur – 30
Chennai collectorate – 27
Koratur Anaicut – 27
Thiruvalangadu – 28
Aynavaram – 26
Poonamalle – 26
Chembrambakkam – 26
Cholavaram – 24
Kolapakkam – 23
Redhills – 23
Shollinganallur – 20
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Kerala Dam levels not looking great, but for 3rd year in row August rains looks Great
In 2019 the dam levels in Kerala on same date were much worse than 2020 on same date. But then came in 2019 August and very extreme spell and within two weeks most of the dams reached full levels in Kerala. 2020 too is in similar state with not much rains in Kerala till date particularly in the ghat areas where most of the Dam catchment area lies. So most of the Dams have not even crossed even 50% mark levels. Even last week heavy spells in Wayand, Idukki were not from monsoon rains but from Thunderstorms.
The two biggest Dams in Kerala Idukki (51.5 tmc capacity) and Idamalayar (35.9 tmc capacity) have only 25-35% capacity. They need good spells for atleast one week to generate good run-offs.
With proper monsoon winds back in August along with support of MJO, its going to be third year in row, Kerala will be having very good rains in August. Lets look back at end of August where the lakes stand i am sure most of the lakes will be in the upper end of the category.