Its South TN time to get rains while KTC (Chennai) looks great for good onset rains on 28/29th October

October 26, 2020
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Hopefully, all are aware how the rains happen with easterlies in place. The coastal areas will get rains from nights to early mornings. While the interior areas will get rains in evenings / night.

Reason for Rains

With an Upper Air Circulation in Bay of Bengal, the one end of the circulation is converging with the winds from west. The wind direction is somewhat north to south with a slight tilt to east, so the south TN is more beneficial in getting the convergence, as there is nothing from west in north TN for creating convergence.

Today to 27.10.2020 8.30 am

The following are the places which are expected to get rains today and mostly areas close to the western ghats in the leeward side. With easterlies in place, watch out for Papanasam to Manjolai belt for good rains. Southern Kerala districts such as Kollam, Kottayam, Pathanamthitta, Trivandrum will also fall in the path of convergence.

 

 

Onset Rains on 28-29th October Looks good for Coast and KTC

Onset of monsoon is expected to be announced by IMD on 28th October and we are going to get good onset band of clouds from NE coming and converging near the Tamil Nadu coast. So on 28 and 29th there will be good bands coming one after another on 28th and 29th from NE. To be honest, i am excited to see the 1st clouds moving in from east and this onset will be a good one from TN coast, Chennai (KTC).

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All India and State wise Toppers of Rainfall in 20 days of monsoon from 01.06.20 to 20.06.20

June 22, 2020

All India Rainfall Toppers from 01-06-2020 to ending till 8.30 am on 20-06-2020

Min (1000 mm)

  1. Amboli, Maharashtra – 1636
  2. Mawsynaram, Meghalaya – 1602
  3. Aluru, Karnataka – 1354
  4. Vendse, Karnataka – 1284
  5. Patgaon, Maharashtra – 1271
  6. Malvan, Maharashtra – 1244
  7. Gaganbawada, Maharashtra – 1210
  8. Pernem, Goa – 1186
  9. RKM Cherrapunji, Meghalaya – 1180
  10. Dajipur, Maharashtra – 1179
  11. Sawantwadi, Maharashtra – 1143
  12. Vadakara, Kerala – 1137
  13. Karwar, Karnataka – 1129
  14. Kumbhi Dam, Maharashtra – 1087
  15. Savantvada, Karnataka – 1083
  16. Ankola, Karnataka – 1080
  17. Belikere, Karnataka – 1073
  18. Vaibhavwadi, Maharashtra – 1048
  19. Kitwade, Maharashtra – 1044
  20. Cherrapunji, Meghalaya – 1033
  21. Rajapur, Maharashtra – 1030
  22. Gokarna, Karnataka – 1019
  23. Revachiwadi, Maharashtra – 1007
  24. Patharpunj, Maharashtra – 1002
  25. Kumta, Karnataka – 1000

Maharashtra SWM Toppers from 01.06.20 to 20.06.2020

(min 1000 mm)

  1. Amboli – 1636
  2. Patgaon – 1271
  3. Malvan – 1244
  4. Gaganbawada – 1210
  5. Dajipur – 1179
  6. Sawantwadi – 1143
  7. Kumbhi Dam – 1087
  8. Vaibhavwadi – 1048
  9. Kitwade – 1044
  10. Rajapur – 1030
  11. Revachiwadi – 1007
  12. Patharpunj – 1002

Karnatata SWM Toppers from 01.06.20 to 20.06.2020

(min 900mm)

  1. Aluru, Udupi – 1354
  2. Vendse, Udupi – 1284
  3. Savantvada, Uttar Kannada – 1083
  4. Ankola, Uttar Kannada – 1080
  5. Belikere, Uttar Kannada – 1073
  6. Gokarna, Uttar Kannada – 1019
  7. Kumta, Uttar Kannada – 1000
  8. Albadi, Udupi – 969
  9. Avershe, Udupi – 951
  10. Hulikal, Shimoga – 946
  11. Mulikar, Udupi – 940
  12. Kollur, Udupi – 933
  13. Talacauvery, Kodagu – 929
  14. Ampar, Udupi – 926
  15. Bandal, Uttar Kannada – 924
  16. Kota, Udupi – 914
  17. Akheti, Uttar Kannada – 911

North East India SWM Toppers from 01.06.20 to 20.06.2020

(min 500 mm)

  1. Mawsynaram, Meghalaya – 1602
  2. RKM Cherrapunji, Meghalaya – 1180
  3. Cherrapunji, Meghalaya – 1033
  4. Mathanguri, Assam – 687
  5. Khliehriat, Meghalaya – 668
  6. Tulargram, Assam – 611
  7. Shipgyer, Sikkim – 567
  8. Sankalang, Sikkim – 551
  9. Haora, Tripura – 545
  10. Kamalapur, Tripura – 520
  11. Annapurnaghat, Assam – 517
  12. Anipur, Assam – 513
  13. Paigong, Sikkim – 505
  14. Badarpurghat, Assam – 500
  15. Karimganj, Assam – 500

Goa SWM Toppers from 01.06.20 to 20.06.2020

(min 750 mm)

  1. Pernem – 1186
  2. Mormugao – 938
  3. Panaji – 932
  4. Canacona – 916
  5. Dabolim – 896
  6. Sanquelim – 885
  7. Quepem – 812
  8. Sanguem – 787
  9. Margao – 775

Kerala SWM Toppers from 01.06.20 to 20.06.2020

(min 500 mm)

  1. Vadakara, Kozhikode – 1137
  2. Kannur, Kannur – 869
  3. Kuttiyadi, Kozhikode – 767
  4. Taliparamba, Kannur – 674
  5. Kudulu, Kasargod – 674
  6. Quilandy, Kozhikode – 662
  7. Thalserry, Kannur – 580
  8. Irukkur, Kannur – 547
  9. Perumannu, Kannur – 509
  10. Kozhikode, Kozhikode – 504

West Bengal SWM Toppers from 01.06.20 to 20.06.2020

(min 500 mm)

  1. Nagrakata 546
  2. Chepan – 545
  3. Buxaduar – 535
  4. Neora- 511
  5. Barobisha – 500

Odisha SWM Toppers from 01.06.20 to 21.06.2020

(min 400 mm)

  1. Machulpali – 607
  2. Sundergarh – 564
  3. Kuchinda – 462
  4. Korba – 440
  5. Laikera – 423
  6. Jharsuguda – 419
  7. Deogaon – 415

Tamil Nadu SWM Toppers from 01.06.20 to 20.06.2020

(min 200 mm)

  1. Devala, Nilgiris – 597
  2. Pandalur, Nilgiris – 529
  3. Periyakallar (Valparai PTO), Coimbatore – 370
  4. Sholayar Dam, Coimbatore – 360
  5. Chinnakallar, Coimbatore – 303
  6. Kuzhithurai, Kanyakumari – 295
  7. Eraniel, Kanyakumari – 282
  8. Cincona, Coimbatore – 274
  9. Upper Kodayar, Kanyakumari – 273
  10. Chittar 1, Kanyakumari -265
  11. Lower Kodayar, Kanyakumari – 257
  12. Gudalur, Nilgiris – 243
  13. Manomboly, Coimbatore – 224
  14. Chittar 2, Kanyakumari – 223
  15. Padanthorai, Nilgiris – 200
  16. Valparai PAP, Coimbatore – 200

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Rare February rains, action to shift to east coast (Tiruvallur to Nellore zone)

February 21, 2021

The trend continues isnt it. 1st it was record breaking January. We cant compare the February rains in 2021 in par with January 2021 rains.  But February – March are one of the driest months for Tamil Nadu that makes these rare rains special. Not often we these rains in February.

For past 2 days the rains have happened in ghat areas and interior parts of state in Karnataka and Tamil Nadu. While in Andhra Pradesh it was coastal areas in Nellore and Prakasam district.  Today morning Thamirabarani belt got heavy rainfall with Manimuthar dam and Lower Papasanam dam both getting 100 mm rainfall. Salem and Erode too got good rains with hails at some places.  Right now at night good bands of clouds are moving into Pondy-Cuddalore belt and if it moves in the interior parts of Villupuram in north and Ariyalur belt down south will get rains. Overall North coastal TN and North interior TN will have good day tomorrow after which rainfall will reduce.

We can see now the rains will shift from western ghat areas towards east coast and interior areas of Chittor, Anantpur and also the coastal areas of Nellore and Prasakam in Andhra. Even Bangalore will get rains in interior Karnataka.

In Tamil Nadu it will be the north interior district Krsihnagiri, Tirupattur, Ranipet, Vellore, Tiruvallur and Chennai are ideally located for rains. Other interior regions like Dharmapuri, Tiruvannamalai and nearby districts will also has chance of rains.

These rains are too difficult to predict, for Chennai, it is all based on luck. If lucky we might get good rains else light rains here and there like past 2 days.

As expected Hailstorms were expected in many interior districts in Erode, Kodagu etc. Hails are observed by us with more probability when ever these upper level trough dips.  The Kodagu hailstorm video is here – https://www.youtube.com/watch?v=lM-gLgPx830 There is chance for more tomorrow too.

Rains will reduce from monday 2nd half and from Tuesday again dry days will start. In the past few 2 days good rains are reported in Karnataka and today good rains were reported in Tamil Nadu and Andhra. The rainfall details are as follows.

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