Possible depression in Arabian Sea

Another tropical disturbance in the Arabian Sea has shown signs of development and it is expected to intensify into Deep Depression in the next 24-48hrs. TN interiors and Coastal pockets have been getting good rainfall for the past two days. Isolated heavy rainfall would occur in one or two places over Western districts of Coimbatore, Nilgiris and Erode. Amongst the coastal regions, Nagaipattinam, Tuticorin & Ramanathpuram also would see some moderate to heavy falls. North coastal districts like Chennai, Tiruvallur, and Kanchipuram would also see isolated rainfall activity around noon.


Northeast Monsoon rainfall is expected to turn active from November 7th with a possible disturbance evolving in SE bay and it might enthrall us during the Deepavali celebrations. The conditions in the bay are being closely monitored over the developments.

Max temp is expected to be one or two degree above normal along major parts of Peninsular India and this includes Tamil Nadu cities as well.

Rainfall warning for District(s):

Coimbatore, Erode, Nilgris, Nagai, Ramnathapuram, Tuticorin, Vellore, Chennai, Kanchipuram, Tiruvallur might see isolated heavy rainfall.

2,014 thoughts on “Possible depression in Arabian Sea

  1. Govt made an excellent decision in opening mettur dam on august 9th.
    So far they managed it efficiently.Now the monsoon has started,

    But looking at the size of this cyclone,It is going to be devastation in delta.
    Since next year election is pending,Govt will spend a lot for this flood relief.
    We cannot expect any other development work from govt for next 6 months.

    Lets pray this makes landfall as DD or D.
    We do not want cyclones

  2. PJ, please can you post me any satellite picture of Chapala at any stage that exhibited “clear-cut” convergence and divergence bands to draw this “gyric map model”. All westward directing systems will exhibit “complete cyclindrical/tight wrapping into centre” starting from the 1st stage of its genesis. The best previous example for these type systems are 1) Helen-2013. 2) 1996-November konaseema cyclone (killed 1000 people) 3) Chapala-2015 4) Megh-2015. By looking it’s convection we can say these systems will travel along the southern periphery of very strong-linear/horizontal and lengthy ridge.

    • I could not able to draw for both Chapala and Megh due to “not displaying proper convergence and divergence bands” right from the beginning. Based on the convection pattern (tightly wrapped into a convection-ball) I can say that it will move in Westward direction. My unability to draw this model-map already explained earlier to “Jeetu”. I told if bay system exhibits proper banding then I will draw this map-model. In accordance I posted today that model map (still earlier, but there won’t be any drastic changes in final out-come).

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