Rainfall to Increase in South & Central TN in Coming Days

An easterly wave is affecting Central and South TN coast causing rains and thundershowers over there. As we go deeper into the week, the showers would pick up in intensity and rains could reach till Pondicherry and areas farther north due to a northward movement of the trough. Chennai’s chances remain fluctuating. If the trough extends a bit more north, Chennai will experience good thundershowers.

Heavy rainfall is likely to occur from the trough from Thursday-Sunday over coastal parts of S, C TN and parts of N TN as mentioned. Let’s see how Chennai’s chances turn out.

14112106_1806

One more interesting thing is the development of a system near Aceh by the 23rd/24th. As of now it is forecast to move towards SL, but it could cause heavy rains over TN.

814 thoughts on “Rainfall to Increase in South & Central TN in Coming Days

  1. So misty morning seems like moisture will be back by thursday and chance to get isolated showers in chennai.

  2. Last system gave rains till central AP which is unexpected,we expected to rain till south AP..similarly expecting the current trough to extend till north TN from tomm..

  3. Nagai,Thanjavur,Karaikal,Tiruvarur will get very good Rains and South Tamilnadu too.
    Nagai,Thanjavur,Tiruvarur stands as central coastal and delta dist.
    Being a central coast delta dist receives much showers from SE Bay systems and also SW Bay systems hence its rocks in NEM.

  4. Iam praying for trough to extend till NTN coasts by tomorrow and give good heavy rains to chennai and other NTN districts please all of them pray for this like situation….

  5. Slowly models r picking up the intense first fortnight Dec rains.If Soi comes below -5 ..close to zero, we can expect a bonanza.Stay tuned

  6. Even this system fails to give us the rains, we got good chances around Nov last weeknto early December, so nem will not end in a deficit note

    • Be confident. Don’t forgot we kea bloggers have brought the systems in North Bay of Bengal to TN.Our confidence and hope will surely bring rains to us. We bloggers will bring rains to chennai. Don’t worry about HPA, dry air etc etc. Rains are on the way. Lets welcome Rains bloggers, Come on cheer up.

  7. TROPICAL CYCLONE 01S (β€ͺ#β€ŽADJALI‬) WARNING NR 004 180600Z — NEAR 10.9S 69.8E MOVEMENT PAST SIX HOURS – 145 DEGREES AT 09 KTS MAX SUSTAINED WINDS – 060 KT, GUSTS 075 KT


  8. It was a good day for Tamil Nadu rains. Everyone is talking about NEM failure with Chennai prespective. We should be happy that other parts of TN particularly Delta are getting good rains.

  9. India Met said on Tuesday that a trough of lower pressure has already developed over south Andaman Sea. This could be the fountainhead for sustained activity though models are not sure if a major weather system is evolving in the Bay just yet.
    Source:hindu business line.

  10. Pamban 97 mm. Yesterday it got 22 mm. Widespread rains in Pudukottai, Ramanathapuram, Thanjavur districts.

  11. The normal rainfall in 1970 is still the same in 2014.But water demand has increased expontly in 2014 from 1970…As a result even if we have a normal rainfal , our water reservoirs are less half their capacity…Now can we increase the rainfall, no not in our hands …can we reduce the popultn grwth rate, Yes and thereby water demands… Instead of complaining abt nature, try not to screw it…Message for the day: SAVE WATER

  12. India to launch American buoy in Bay of Bengal to study weather pattern
    ———–

    Scientists are set to sail from Chennai on November 24 towards a point in the Bay of Bengal, 300 km east of Kolkata, which receives the highest rainfall in the Indian Ocean. They will carry a state-of-the-art buoy which can measure salinity, temperature, currents, and nitrates and dissolved oxygen content at different levels in the sea up to a depth of 2 km.
    ——————–
    http://www.thehindu.com/sci-tech/india-to-launch-american-buoy-in-the-bay-of-bengal-to-study-weather-pattern/article6614293.ece?homepage=true

  13. I think we will have a system either d.dd.wml,lp by 8th to 10th of dec, although it,s long shot things look promisiming..hope it happens..

  14. Its a lovely experience to walk against the wind in the service roads of marina beach, past 2 days the wind speed has increased substantially one of my friend who works in chennai harbour said that waves have become rough and there is a sudden swell of waves yesterday which deposited sand with sea water this kind of phenomenon often happens if some systems which approaches chennai in the past i have seen sand that has been deposited during severe systems in to the service road

  15. sat image update cloud temp
    How it will be nice this kind of clouds comes over chennai from the sea and burst over cnennai

  16. Thats lot of cloud mass in south bay…many times the system’s source starts from this place and we have got rains in the past…lets be positive…10-15 cms again in the spell on weekend would be a real jackpot…

  17. After waiting for this much long, we bloggers are not going to settle for Low, D or DD. We need a full fledged cyclone, nothing more or nothing less. Hope fully by the end of this month. : )

  18. Us climate centre predicts a strong system may develop over se bay around 26 nov and move wnw towards ntn and adj sap coast…. it may weaken whilw nearing the coast….

  19. South bay looks deadly.. We should be in for some rains by tomm night. I feel this sudden spurt in convection could probably travel NW and touch Chennai latitude, as we are in peak NEM season. Not lost hope.

  20. DAY 11 (19th November): Light to moderate rain would occur at a few places overRamanathapuram, Tirunelveli, Thoothukudi and Kanyakumari districts of South Coastal Tamil Nadu and isolated light to moderate rain may occur over the remaining districts of rest Tamil Nadu and Puducherry.

    DAY 2 (20th November): Moderate to rather heavy rain would occur at many places over Ramanathapuram, Tirunelveli,Thoothukudi, Kanyakumari, Chennai, Kancheepuram, Tiruvallur, Cuddalore, Villupuram, Thanjavur, Tiruvarur, Nagapattinam, Pudukottai districts of Coastal Tamil Nadu, Puducherry and isolated light to moderate rain may occur over the remaining districts of interior Tamil Nadu.

    DAY 3 (21st November): Moderate to rather heavy rain would occur at many places over Ramanathapuram, Tirunelveli,Thoothukudi, Kanyakumari, Chennai, Kancheepuram, Tiruvallur, Cuddalore, Villupuram, Thanjavur, Tiruvarur, Nagapattinam, Pudukottai districts of Coastal Tamil Nadu, Puducherry and isolated light to moderate rain may occur over the remaining districts of interior Tamil Nadu.

    source imd chennai

    OUTLOOK FOR SUBSEQUENT THREE DAYS: Increase in rainfall over interior Tamil Nadu and No significant change for coastal Tamil Nadu.

  21. INTERIOR TAMILNADU FOR SWM
    COASTAL TAMILNADU FOR NEM

    THIS CAN NEVER CHANGE BUT SEE THE RAINFALL FIGURE
    JUNE TO SEP 31
    CHENNAI (COASTAL)- 650 MM
    TIRUVANNAMALAI (INT )- 230 MM??

    HOW?

  22. The current circulation looks like its developing as a WML..if it developes..chennai has great chance of rains..the main to watch is the ridge..if the ridge is not present over central TN right now..its a sure shot of intensifying to a depression..

  23. alert! pulse from a system that is going to form near philipines can enter into our BOB which can become cyclone ashoba around 1 week of dec

  24. DISADVANTAGES OF DECEMBER CYCLLONES

    1) DEC CYCLONES WILL HAVE LESS PRECIPITATION

    2) MOST OF THE RAIN WOULD FELL IT ON SEA ITSELF
    3) IT WOULD WEAKEN RAPIDLY AFTER LANDFALL.

    • Partly true.. however doesn’t happen most of the time. There are many cases where cyclones continued inland for a while even in December or cases of cyclones producing heavy rains in December too.

  25. both nellore and ongole getting some showers due to convection. probably spread across chennai by late evening, as the heat can trigger some thunderstorms.

      • Understand, lets not forgot, our average NEM rain is 800-850mm and we have already got around 600mm, its all about balance 200mm which can we wiped by 3-4 days of good rains. Still we have end of December. Lets not press the panic button. Last year was worse we got only around 400-450mm for entire NEM

      • This is just normal NEM. Such long break is very common phenomenon in monsoon Period..NEM is not like SWM which is monotonous.. Nothing to worry about it..

  26. Latest CIMSS update showing good convergence and divergence building up in BOB which is relevant from the clouds building. Hope the storms gain latitude and move towards NTN coast

  27. any views on some showers noticed at ongole/nellore pockets today noon. strange. probably a weak upper level disturbance over bay of bengal.
    ss

  28. Suddenly there are plenty of
    ants in my home at Adam..
    Searching for food n come
    from nowhere..even in d
    middle of the hall in first
    floor..Any urgency on
    their part smelling rain?
    are ants good weather readers?

  29. A Strong WML or DD is really what is required….which can span across 2-3 days ..even 15 cm totally we can happily take…

  30. Towards SE of SL, we can see the consolidating system is startling to circulate and the initial movement is towards NW.

    • yes.. A mild HPA near Chennai latitude was vanished by yesterday storm but it appeared again! .. I think current system will beat it..

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