Well Marked Low Moving North

The Well Marked Low in Bay of Bengal now lies parallel to Chennai coast as it continued its Northward journey towards the coasts of Andhra Pradesh.  In what is likely to be a major disappointment for most people of Tamil Nadu this disturbance has not given much rains to places except for Chennai vicinity.  Since yesterday South Coastal AP has been recording good spells of rains which are slowly expected to spread further North along the coasts.

 

Over the course of the next 48 hours or so this Well Marked Low will move slowly on a N/NW track heading around Machilipatnam / Kakinada region of Coastal Andhra Pradesh.  While the system climbs up the latitude the rain bands also will possibly be moving up as well bringing more areas of Andhra Pradesh under spells of rains while this spell of rains slow down for North Coastal TN including Chennai gradually.

As one can observe under the Westerly wind influence the Southern portion of the Well Marked Low is bereft of any major moisture thereby maintaining the trend of only those areas falling to the Northwest of this disturbance enjoying the best spells of rains so far.  Though the circulation is expected to recycle rain bands over the coastal areas including parts of extreme North Coastal Tamil Nadu rains could gradually ease as the circulation starts moving completely to the Northeast of Chennai.

  • New Post Updated https://wp.me/p6Y3od-1J2

  • Leo Michaelraj @ ayanavaram
  • Leo Michaelraj @ ayanavaram

    Clear sky with partly cloudy

  • Common Man

    Ecm reduces the Precipitation amount in the latest run

  • Common Man
  • Common Man
    • Natarajan@Adam/taramani

      yes. see the surge of north easterlies from north bay

      • Common Man

        Yes bro

    • Natarajan@Adam/taramani

      In 168,192 hrs you can see rush of north easterlies from north india

  • Natarajan@Adam/taramani
    • Natarajan@Adam/taramani

      This is the one which is going to enter india next week

      • sudarshan@chromepet

        What does this do in general

        • Natarajan@Adam/taramani

          if cyclone/strong system forms and if there is no proper ridge to guide its movement, it will simply take it away

          • sudarshan@chromepet

            Namaku weak podhume?

            • Natarajan@Adam/taramani

              paapom 🙂

              • sudarshan@chromepet

                Doesn’t affect trough or lpa am i right

              • Natarajan@Adam/taramani

                yes

              • sudarshan@chromepet

                U need to take rest bro me too disturbing u

              • Natarajan@Adam/taramani

                ha ha. no issues 🙂

    • Hemachander@Nagai

      Why back to back WD it’s time for back to back LPA….

      • Natarajan@Adam/taramani

        AO is slipping into negative

  • Common Man
  • Common Man

    Westerlies likely to help interiors tomorrow..Am I right?

    • Natarajan@Adam/taramani

      looks like

      • Common Man

        For us some chutney 😛

        • Natarajan@Adam/taramani

          khastam thaan 🙂

          • Hemachander@Nagai

            What about Kerala especially southern parts they not yet received NEM spell

            • Natarajan@Adam/taramani

              south kerala got quite good rains in oct 2nd half

              • Hemachander@Nagai

                Yes but that’s only few days what about widespread spell?

              • Natarajan@Adam/taramani

                have to check imd tvm data

            • Natarajan@Adam/taramani

              south kerala got good rains in nov also

        • sudarshan@chromepet

          Let’s interiors enjoy something

          • Common Man

            Yes rmba pavam

  • Natarajan@Adam/taramani
    • sudarshan@chromepet

      Expecting any system around 25 or too early to predict

      • Natarajan@Adam/taramani

        ecm is showing a lpa/trough around that time

      • Natarajan@Adam/taramani

        This is dipping even deep into saudi arabia

      • Natarajan@Adam/taramani

        sub tropical forcing!

        • sudarshan@chromepet

          U mean wd so strong

          • Natarajan@Adam/taramani

            not sure if its so strong. but see the dip in west asia. its dipping in sahara also

  • sudarshan@chromepet
  • Natarajan@Adam/taramani

    Huge WD with circulation in Afghanistan and dipping into Arabian sea

    https://uploads.disquscdn.com/images/051f3856317cd4958c1fc22dfcf4717594a22f885b1c752561dda92f70df621a.png

  • sudarshan@chromepet
  • Natarajan@Adam/taramani

    A strong sub tropical low in Mediterranean sea has circulation extending more than 13.5 kms in altitude

    • Natarajan@Adam/taramani

      massive subtropical system

  • Natarajan@Adam/taramani
    • sudarshan@chromepet

      Can u explain

      • Natarajan@Adam/taramani

        are you able to see some kind of centre? the convection is wrapped around it

        • sudarshan@chromepet

          Yes is the low moving

          • Natarajan@Adam/taramani

            yes

            • Natarajan@Adam/taramani

              may move north to north AP coast

            • sudarshan@chromepet

              Raining in sea or in ap

              • Natarajan@Adam/taramani

                some rains in north AP and south orissa

              • sudarshan@chromepet

                Moved so fast?

              • Ramanan Sv@West mambalam

                Yes,let it be,good for us

              • Natarajan@Adam/taramani

                hmm. its influence will be there till friday

  • SrikanthK

    Kallakurichi 58 mm, Vazhapadi 21 , Perambalur 20 mm

  • sriram@kolathur

    Some Weather terms in tamil

    Upper air circulation-காற்று மேலடுக்கு சுழர்ச்சி
    Trough of low-குறைந்த காற்றழுத்த தாழ்வுநிலை
    Low pressure area-குறைந்த காற்றழுத்த தாழ்வு பகுதி
    Well marked low-நன்கமைந்த காற்றழுத்த தாழ்வு பகுதி
    Depression- காற்றழுத்த தாழ்வு மண்டலம்
    Deep depression-ஆழ்ந்த காற்றழுத்த தாழ்வு மண்டலம்
    Cyclonic storm-புயல்
    Severe cyclonic storm-கடும் புயல்
    Western disturbance-மேற்கத்திய கலக்கம்
    Wind convergence-காற்று குவிப்பு
    Wind shear-காற்றின் வகைக்கெழு
    Wind discontinuity-காற்று மாற்று கொடு
    Inter tropical convergence zone-வெப்ப மண்டல காற்று குவிப்பு பகுதி
    Jet stream-அதிவேக காற்றோட்டம்

  • Hemachander@Nagai

    Thiruvarur, Thanjavur, Ariyalur, Perambalur,vilupurum districts getting rains

    • anandha kannan@svks

      Enjoy

  • Hemachander@Nagai

    After the first spell from 90b now delta getting pull effect rains…no expectations whatever add up to the bonus.

  • anandha kannan@svks

    @sri Anna. Howare the condns looking for upcoming easterly waves in Chennai?.. Seeing nothing major though as per my view. Your take?..

    • anandha kannan@svks

      I am coming there

    • SrikanthK

      Wrong Number…unless the Easterly wave is before Friday 🙂

      • anandha kannan@svks

        Ohh no :(..hope I get drenched..oru 5 cm vanthalum pothum:P

  • anandha kannan@svks

    I don’t want any sporadic thunderstorms for my area:P

    • SrikanthK

      You want widespread thunderstorms is it?

      • anandha kannan@svks

        Yeah Anna.from east 😛

      • anandha kannan@svks

        Westerlies sporadic thunderstorms were boring 😛

  • SrikanthK
  • MRavi Shankar

    No difficulty in browsing the site. It is very nice

  • SrikanthK

    It looks like we have managed to correct the bandwidth issues the site was facing time to time. Do let us know in case you are finding it difficult to browse the site.

  • jeganatharaja

    Any hope for pull effect rains for STN? Otherwise when can expect next spell here, sir.

    • SrikanthK

      Tomorrow there could be a chance I think

  • Natarajan@Adam/taramani

    IMD convergence chart was correct about rains in parts of central tn. parts of vizhupuram,cuddalore,perambalur,ariyalur and thanjavur are receiving rains

    • Leo Michaelraj @ ayanavaram

      Is it due to pull effect

      • Natarajan@Adam/taramani

        yes.mid level winds are westerly

  • Natarajan@Adam/taramani

    Yesterday IMD convergance chart showed moisture convergance in parts of central TN today

  • Leo Michaelraj @ ayanavaram
    • Varadhan SKM @ IIT Madras

      Seems like this handle is managed by someone responsible.

  • Varadhan SKM @ IIT Madras

    Thanks for that entertainment. LOL.

  • Varadarajan Srinivasan

    இன்னும் ஒரு வாரத்துக்கு தூக்கம்தான்.
    மழைத் தண்ணீர் ஏரிகளை நிரப்பவில்லை என்பது குறைதான்
    அதைவிட school பசங்க தான் பாவம். வடகிழக்கு பருவ மழைனால அவங்க quota
    leave கிடைக்கல.

    • Varadhan SKM @ IIT Madras

      I thought next monday we have something?

    • Already kids got 6 days so far and monsoon is not over yet….
      You want them to get 1 month like 2015 ..

  • Leo Michaelraj @ ayanavaram

    Can we expect some bright sunshine tomorrow

    • Natarajan@Adam/taramani

      yes. mostly

  • Natarajan@Adam/taramani

    TS in thanjavur district too

  • Natarajan@Adam/taramani

    Storms in cuddalore,vizhupuram district

  • Natarajan@Adam/taramani

    mid level winds turned to NNW

  • sriram@kolathur

    I heard siberian high is very strong and quite WPAC this time..so nly all models hinting active nem conditions with positive anamoly fr us..is that so?

    • sriram@kolathur

      @natarajan can yu explain

      • Natarajan@Adam/taramani

        siberian high usually provides burst of dry easterlies from time to time. those can either get sucked up by sub tropical lows near japan or by strong systems in wpac. If wpac is quiet, those winds become moist and can create circulations in bob or SE asia

        • sriram@kolathur

          So above point is correct..Thank yu..

          • Natarajan@Adam/taramani

            Welcome

      • Natarajan@Adam/taramani

        its similar to the role of mascarenas high during swm.

      • Natarajan@Adam/taramani

        sub tropical lows around japan/russia also influence. not only wpac

  • barath rakesh

    Tropical tidbits

  • Common Man
    • snake

      50mm soldran.

  • Vignesh @ Velachery

    thoothukudi & ramnad only will benefit by pull effect when system at west central bay. Other places won’t get any significant.