Posted by: keaweather | November 27, 2010

Chance of a few heavy showers

Satellite Image looks favourable for us. Hopefully we should get a few heavy showers today.


Responses

  1. vijay,The system in south bay and comrin sea is a trough of low pressure and not depression.There is a mild circulation in gulf of thailand which needs to be watched.Since we are reaching december most of the sytems tends to form in south central bay.

  2. kamesh,

    time is running out for what? Is their any specific reason chennai should reach 150 cms? Our normal is 127 and we have already reached it. We should be happy this is not a decifit year.

  3. vijay,system in south indian ocean is different since it is below equator it wont move north.It will move towards australia.Any system which is below equator will move south and system above equator will move north.

  4. am very dissappointing last three days less rainfall occured in chennai and chennai suburbs,let us watch december till tis continue ……………….

  5. vinod which system? near andaman or current depression?

  6. The system in south indian ocean is organising.

  7. blue sky with stars…………….

  8. It started to rain and drizzle here in KMB for the past half an hr.

  9. Tozhudur 21cm… ooof

  10. more chance for rain for chennai by next week only
    http://weather.in.msn.com/tenday.aspx?wealocations=wc:inxx0202&q=chennai,+tamil+n%C4%81du+forecast:tenday

  11. Time is running out for chennai.If the present trend continues chennai will struggle to reach 150 cms this year

  12. Rain AT THE MOMENT for chennai “VARUM AANA VARAATHU”

  13. Cyclone heading for nagai?? http://www.weatheronline.co.uk/cgi-bin/expertcharts?LANG=en&MENU=0000000000&CONT=swas&MODELL=gfs&MODELLTYP=1&BASE=-&VAR=pr06&HH=192&ZOOM=0&ARCHIV=0&WMO=&PERIOD=

  14. Tamil Nadu 2010
    ——————–

    SWM ==> Excess – 20 districts, Normal – 14 districts
    NEM ==> Excess – 17 distrcits,Normal – 12 districts, Deficient – 5 distrcits

  15. As per NWP….

    Next Rain for chennai will be from DEC 1st….. WE hope this system brings more rains to us…

    http://www.imd.gov.in/section/nhac/dynamic/96hGFSrain.htm

    http://www.imd.gov.in/section/nhac/dynamic/120hGFSrain.htm

  16. Sorry to be pessimistic–but to my eye,this satellite image means that Chennai cannot expect anything from this system..it seems to have dissipated..

    http://www.weather.com/maps/maptype/satelliteworld/indiasatellite_large.html?clip=undefined&region=undefined&collection=localwxforecast&presname=undefined

  17. Our Kea weather blog now finds a place on Hindu website.

    http://www.thehindu.com/sci-tech/internet/article902109.ece#comments

    read the comments section

  18. ISRO builds hi-tech satellite for Uk company

    http://www.thehindu.com/sci-tech/technology/article917421.ece

    Oxygen found in Saturns Moon
    http://www.thehindu.com/sci-tech/science/article915283.ece

  19. heavy rains from Thursday for Chennai!

  20. @ ssuresh : That is the LLCC we both were posting yesterday! It is the remains of that. Bay being warm, may help it to organise. But, will it come here is a big question, only time can say the answer!

  21. Wrong information jon. No rain at chidambaram from yesterday night

  22. already some disturbance is notice in south andaman sea very close to malay peninsula.

    still bay of bengal very close to chennai coast can bring rain bearing clouds to chennai. if it fails this night, then we have to wait for frsh system.

    ss.

  23. Dear Weather Experts, So far i could predict the model… There is no chance of rains for chennai anymore.. However, there are chances of a Tropical storm expected near andaman somewhere during next week and would move towards Andhra coast.. Even during that period, very little showers are expected at chennai… You may expect this system coming close to Andhra coast somewhere durign 6th Dec… What you experts think ?

  24. disappointing NorthEast for chennai so far,,,,

  25. Radhakrishna, effect of green house gases on a particular area will be clear only after serious research .i am not in a postion to answer this :)

  26. radhakrishna, i have not seen express avenue.i heard that it is good.

  27. gopal,thank you :) ..satellite picture shows good cloud cover but i expect only isolated moderate shower from it.

  28. Kuzhithurai rocks again with 8cm

    year total is 167 wow KR watch out 200 is not very far

  29. Omg gingee 11cm

  30. and recently there is an interesting reason responsible for much heat in vjwada and here in vjwada there is a thermal power station which release many CFC’S and those CFC’S doesnt allow the sunlight to reflect back into atmosphere and thus always heat content is present in air of vjwada responsible for still heat and thats why 40 degrees is minimum for us and i thiink even heat in chennai might be due to some thermal power station(IS IT THERE?) or some other big source of CFC’S or might be due to its presence on thermal equator.i am sure chennai city will receive some good showers tonight after observing the satellite imagery.

  31. ya vinodh thanks a lot for belated brthday wishes and u know u cant enjoy much in vjwada and frankly saying vjwada is boring place except barrage on krishna river and surprisingly u can enjoy on a naturally formed large island on krishna river near vjwada it will be like a forest but i like beach but in vjwada no beach.to go to beach here from vjwada i have to go to bapatla beach(FAMOUS FOR CYCLONE LAILA’S landfall)or machilipatnam beach(FAMOUS FOR MANY CYCLONES ESPECIALLY SUPERCYCLONES OF 1990 AND 1977) and in chennai there is much fun and u can go to MARINA BEACH WHICH I LIKE THE MOST(OFFCOURSE FAMOUS FOR CYCLONE JAL’S LANDFALL hahaha),and spencers plaza evergreen and how is somemall newly built in chennai i think express evenue??how is it?

  32. Vinodh–Many Happy returns of the day!

    Both these current satellite images show cloud cells in the sea and infact 1 part is heading towards AP as well?Will the cloud mass gather moisture and head towards Chennai?

    Vinodh / SS- pls analyse and let us know..

    http://www.weather.com/maps/maptype/satelliteworld/indiasatellite_large.html?clip=undefined&region=undefined&collection=localwxforecast&presname=undefined

    http://cimss.ssec.wisc.edu/tropic/real-time/indian/images/xxirmet5n.GIF

  33. 3 days of cloudy weather but NOT SIGNIFICAN rain in chennai.. it is frustratin….

  34. Things will change in coming days and we can see more northward movement of systems in bay.The area of concern should be the andhaman sea and of course the south bay.

  35. it is totally overcast, very cool weather but no RAIN ….GRRRRRRRRRRRR it is very frustrating

  36. I am going to Colombo tomorrow morng, will be back on 4th night, will be missing KEA for a week – if time permits shall log in till then bye to you all

  37. bhaskaran,that biker was really cool :)

  38. bhaskaran, thank you :) .. i am getting your mails ..today only i have checked my inbox..

  39. Rainfall till 8.30 am

    Nagapattinam
    —————–
    Keelaiyur – 159.0
    Mayiladuthurai – 237.0
    Nagapattinam – 113.5
    Sembanar Koil – 202.0

    Thanjavur
    —————–
    Aduthurai-143.0
    Pattukkottai-46.0
    Thanjavur-66.0
    Thiruppanandal-150.5

    Villupuram
    ——————-
    Kallakkurichi-188.0
    Kanai-114.5
    Kandamangalam-139.5
    Koliyanur-107.0
    Mailam-64.0
    Olakkur-71.5
    Rishivandiam-82.5
    Thiagadurgam-136.0
    Thiruvennainallur-116.0
    Vallam-60.5
    Vanur-89.0
    Vikravandi-87.5

    Ariyalur
    ————–
    Andimadam-156.5
    Ariyalur-42.0
    Jayankondam-126.0
    Sendurai-188.0

    Cuddalore
    —————–
    Cuddalore-200.0
    Veeranam-222.0
    Komaratchi-156.0
    Kurinjipadi-164.5

    Kanayakumari
    ———————
    Pechiparai-57.0
    Perunchani-41
    Kurunthancode-62.5
    Thackalai-58.5
    Thiruvattar-57.0
    Thovala-46.5

    Puducherry
    —————–
    Puducherry-150.0
    Karaikal-190.0

    Thiruvannamalai
    ———————-
    Keelpennathur-47.0
    Thandrampet-88.0
    Sathnaur-49.0

    Salem
    ———
    Gangavalli-73.5
    P.N.Palayam-46.5
    Valapady-41.0

  40. Hi Vinodh – Many Happy returns, are you receiving my mails, is it boring you

  41. thanks vijay :)

  42. radhakrishna,thanks :) ..belated birthday wishes to you :)

  43. what would be rainfall prediction for chennai in another 24 hours.

    if it fails tonight, i think end of it. Probably by tomorrow evening clouds would dissipiate.

    then we have to be on the look out for a fresh system which is possible in south central bay of bengal very close to chennai coast any time next week, as sst is quite high here.

    ss.

  44. Chidambaram 20cm :sad:

  45. Many places in Cuddalore dist completely cut off

  46. Looks like delta dists will be battered once again from 30th

  47. vinod,
    HAPPY BIRTHDAY!!!!

  48. hi vinodh seems ur brithday and wishing u a great happy birthday and even my brthday in same november offcourse its over on nov 22nd and how r u njoying this day?

  49. Hi frnds,

    We have to be happy if South & Central TN gets more rain than N.Tn….

    Because major dams and many reservoir in Tamilnadu are present there only…let it get full…

    Our farmers will be happy, Cultivation will be higher, power cuts will get reduce…..

    As for us chennai…we have got our annual rainfall… as for as NEM…still 1 full month is there….WE WILL GET MORE RAIN ….

  50. Very light drizzles in mount for the past 10min

  51. Thank you jon :)

  52. Happy birthday vinoth

  53. Looking good for us http://www.weatheronline.co.uk/cgi-bin/expertcharts?LANG=en&MENU=0000000000&CONT=swas&MODELL=gfs&MODELLTYP=1&BASE=-&VAR=pr06&HH=192&ZOOM=0&ARCHIV=0&WMO=&PERIOD=

  54. kea.

    Radar findings reveal a good cloud cover over chennai in an arc. the entire cloud cover now shifted to north, even north of pondicherry/cuddalore in open sea. There is a possibility of low pressure formation close to coast any time from now south west & west central bay. what is your say onthis.

    ss.

  55. Arun,do keep reading..try to read lot of met terms and how they are related to weather ..just start with the topic on winds and sun relation to wind movement that will give you better understanding on low pressure and high pressure process.

  56. chandru,

    cant say its a total failure. We have already received 60% of the rain. Still 1 month to go. Moreover we have already received the normal rain for the year. The southern part had deficient rains, and its good those areas got rains past few days.

  57. High pressure seems to be weakening.

  58. There is another disturbance with poorly organised circulation over gulf of thailand.It needs to be watched as it moves slowly westward.The SST is very high near andhaman sea and shear remains favourable currently. i am not sure of future shear values.

  59. The line which IMD states “ridge line passes 15n” is similar to outer band of cyclone.
    just like outer band of cyclone ,the line is outer band of high pressure.

  60. This year the NEM for chennai looks like gonna be total failure..
    I had this doubts even at the beginning as the Monsoon set in very late.
    For chennai usually NEM setting in early is beneficial as november progresses the Monsoon shifts focus more to the southern areas only.

  61. pradeep,all this is due to high pressure which is centered over orrisa with its outermost portion extending till 15N.

  62. Thanks guna.Today is my birthday :)

  63. The monsoon trough now lies in south west bay, south arabian sea and extends upto deigo garcia.This monsoon trough has spawned 3 disturbance.First one now lies over arabian , extreme south peninsula extending till southwest bay , the other one in south east indian ocean and is likely to intensify into a tropical storm if it could move away from very high shear in coming days and this will track towards western australia , third one is pretty close to second one near diego garcia.Since the trough has extended furthur southward till diego garcia .There are high possibility of active cyclogenesis in south indian ocean.This will be the case for few more months in south indian ocean.

  64. Dear Weather experts, It will be good if you guys can share how do you predict rain.. Though i do lot of online research on weather, i could not understand the sudden changes in the movement of clouds or winds…

  65. KN, Kea, KR, suresh, vinodth

    Why is all the the easterly wave’s, trough of LPA’s, LPA’s, WML, depressions and cyclone letting us down

    Any technical reason

  66. It is really boring….. No rains !! clouds cheating us !! i havent seen roads blogged with rain water…. Doesnt looks like NEM…. Kea , Can you predict some cyclone in Dec atleast ?

  67. Happy Birthday Vinod.

    When is your B’day yesterday or today. I saw Dhinakar’s post but was not sure yesterday or today.

  68. ridge is a terminology normally called on sea surface and high pressure normally attributable to land. in any case both are same.

    you see for the past 2 days the ridge was at 14 north juse close to nellore and today it has moved to 15 close to ongole.

    probably that is the reason why chennai has received some showers last night.

    any time we can get back rainbearing clouds from bay. that is my view on this.

    ss.

  69. Veeranam is now receiving a massive 7000 cusecs inflow due to torrential rains (as pointed out earlier by K.N. (about 222 mm))

    The total capacity of Veeranam is just around 1 TMC. So imagine with such a inflow even if it is bone dry just 2 days are enough to fill it up to the brim.

    Unfortunately it is already full last week itself. So entire water is now diverted to sea.

    Mettur is also having a chance of surplusing by early next week if present inflow persists. Cauvery is already carrying flood waters from rains downstream of Mettur and if mettur dam is filled, it will further worsen the flood situation downstream.

    Most other dams also face a similar situation now except Bhavani sagar and dams in extreme south.

    This NEM is proving to be a surplus one for entire TN except for us.

  70. ” I anticipate this movement cloud back to sea may be due to pressure disturbance and ridge over north near nellore and high pressure in central india”
    suresh,ridge and high pressure are all the same.They are not different .you can refer them with same name.

  71. dhinakar,thanks :)

  72. KEA.

    Just cat on the wall position. the movement of ridge given a slight hope as still lot of clouds in bay. U notice for the past few hours low clouds are coming from east. even the latest radar readings indicate clouds within the vicinity of 30 KMS from chennai. let us wait for our turn – may be late evening. there is no clear blue skies, which give me some hopes for the systme to keep it live.

    ss.

  73. After todays report(imd chennai) .. Chennai AP is likely to be the biggest loser this NEM

  74. Imd delhi report out.. till 8 30

    Cuddalore – 20cm
    Karaikal -19cm
    Nagapattinam -16cm
    Pondicherry – 15cm
    Thanjavur -7cm
    Adiramapattinam – 6cm

  75. suresh,
    r u sure? Not too positive

  76. Rainfall ending 8.30 am on 27.11.2010
    =============

    Nagapattinam
    —————–
    Keelaiyur – 159.0
    Mayiladuthurai – 237.0
    Nagapattinam – 113.5
    Sembanar Koil – 202.0

    Thanjavur
    —————–
    Aduthurai-143.0
    Pattukkottai-46.0
    Thanjavur-66.0
    Thiruppanandal-150.5

    Villupuram
    ——————-
    Kallakkurichi-188.0
    Kanai-114.5
    Kandamangalam-139.5
    Koliyanur-107.0
    Mailam-64.0
    Olakkur-71.5
    Rishivandiam-82.5
    Thiagadurgam-136.0
    Thiruvennainallur-116.0
    Vallam-60.5
    Vanur-89.0
    Vikravandi-87.5

    Ariyalur
    ————–
    Andimadam-156.5
    Ariyalur-42.0
    Jayankondam-126.0
    Sendurai-188.0

    Cuddalore
    —————–
    Veeranam-222.0
    Komaratchi-156.0
    Kurinjipadi-164.5

    Kanayakumari
    ———————
    Pechiparai-57.0
    Perunchani-41
    Kurunthancode-62.5
    Thackalai-58.5
    Thiruvattar-57.0
    Thovala-46.5

    Thiruvannamalai
    ———————-
    Keelpennathur-47.0
    Thandrampet-88.0
    Sathnaur-49.0

    Salem
    ———
    Gangavalli-73.5
    P.N.Palayam-46.5
    Valapady-41.0

  77. after 3 days, finally ridge has moved north to 15 North giving hopes for formation of low pressure close to chennai coast. already good cloud mass moved from down south to north coastal tamil nadu stretching from cuddalore to nellore.

    i think present indications chennai would get some useful showers, as the higher pressure area moves up north.

    ss.

  78. one a few drizzles in air. but not felt. very mild at anna salai.

    ss.

  79. @Pradeep neyveli is much higher.. the rain guage got stuck…

    according to tnau kallakurichi 19cm… its a really huge rainfall in central coastal TN and adjoining districts

  80. These kind of area wise rainfall in chennai does not make good reading! NEM may last another 10-15 days, so still wating for that heavy spell.

  81. Hi Jon
    RA puram and Mandaveli areas recieved no rain past 12 hours

  82. I guess chennai may not get rains this weekend also. Just cloudy skies, no trace of any rain.

  83. Rainfall till 8.30 am
    =============
    Adiramapattinam -60mm
    Neyveli – 23mm
    Chennai (Nungambakkam) – 9.7mm
    Chennai (Meenambakkam) – 4.5mm

  84. Hi,

    I’m new to this blog and its nice to know that there are so many rain enthusiastics!!
    from my part, here at Ennore, its just cloudy since this morning.
    wish good rains for chennai

  85. It is a fairly widespread extrememly heavy rainfall in cuddalore dist :)

    Those figues were according to imd.. teh following from tnau stations…

    Mayiladuthurai 237mm
    @GTA Thiruvarur 144mm

  86. Pondicherry 152mm !! omg cuddalore-nagai dists have rocked :)

  87. Veeranam lake has recorded 222mm !!!

  88. sorry

    some light drizzles and dark towards east

  89. some light drizzles and towards east

  90. As kea said…as far as i can recollesct…it luks like not much for chennai before dec.2 :(

  91. “Chennai – Southern suburbs got a sharp shower at around 9:15am and for central and N. Chennai nothing more than a drizzle.” -IWM

  92. there was some gud showers here in tambaram…surprrsed to see nothing in ngbkm…any rain in AP?

  93. KEA.

    your observations 100 per cent correct. the latest satellite picture indicates a big cloud mass now seen over about 200 KMS east of cuddalore. Only the smaller broken portion inland. In fact extreme south tamil nadu absolutely no rains from yesterday midnight.

    I anticipate this movement cloud back to sea may be due to pressure disturbance and ridge over north near nellore and high pressure in central india. However the chances of rebuilding of clouds above cuddalore still not ruled out, as lot of moisture now in open sea which has the ability to regain in strength.

    let us keep track as this is interesting. still chennai has a greater chance to get heavy spells once the clouds gone back to sea gets its fuel back on track towards north west.

    for another 3 or 4 days i think places down cuddalore will be totally dry.

    what is your view on this.

    SS.

  94. KEA.

    I have not heard any big rains from delta or any other districts from this morning ( from 9 AM) Though there were some dirzzling in inland, as most of the clouds reentered the sea. Now we have to keep track of open sea instead of inland.
    But we could see some rains in kalpakkam/mahabalipuram pocket time and again.

    I would be getting 11. 30 AM satellite picture and then post my view.

    ss.

  95. Suresh,

    Today its different compared to previous 2 days. The clouds are not moving inland, but dissipitating over the sea itself.

    Is it actually raining anywhere?

  96. guna,

    I already posted. it is likely to weaken in west pacific itself.

    now we have to look for a new system near andaman where sst is high.

    it looks like today will be totally overcast unless otherwise the rain bearing clouds from south east move towards chennai which i think remote, as fo rth e past 2 days, it maintains the same trend not moving beyond kalpakkam.

    ss.

  97. Sorry Suresh

    I havn’t seen your post below about it.
    So no more heavy rains till next week. very frustrating

  98. Good morning everyone.

    Suresh what happened to that western pac system. Any signs of it developing in bay.

  99. @Siva we get cuddalore,chennai,coimbatore and tiruchi rainfall alone from weatheronline site.. cuddalore 199mm till 5 30

  100. surprisingly latest radar picuture picks up showers just 25 KMS east of chennai.

    let us keep track of this rain cell.

    ss.

  101. @gta, sun news

  102. @kea black aadu? :smile:

  103. even west pacific new system not encouraging. it might weaken as per latest JTWC report.

    we need to look for andaman for a new system, as SST is considerably higher there/

    ss.

  104. sirkazhi last days 450 mm rain but chennai receive mm

  105. Mr. Kea…

    I did not post any message in your previous post. It was someone else by my name.

  106. Drizzling in mount

  107. kea.

    yes. you are right. in all other options, there is not even an indication. so when radar generates diagram, it had also on its own creat some thick blue dots on top of it in some modules. Any way thanks for your valuable points KEA.

    Still i feel chennai would get fair quota of rain from this system, as satellite picture continues to be encouraging. in fact compared to yesterday evening, today is far better. Please look in to dundee satellite pictures which is reliable, but it only updates every 3 or 6 hours.

    ss.

    SS.

  108. @jon wer do u get sirkazhi 270mm….how many mm for thiruvarur nd giv d link

  109. Suresh,

    those lines are nothing. I think its just an error on the radar.

    Meanwhile I think this is as close as it will get, the huge cloud mass moving 50 km south of CHennai. Places like Mahabilipuram will get lite rains, thats it. Nothing for CHennai.

  110. good morning to all

    clouds haunt move upwards yet “disappointing”

  111. Plan Position indicator ( Z) closed range. Access to IMD and see in dopper products. select chennai and closed range indicator which updates every 10 minutes.

    I believe there is flood like situation in cuddalore, chidambaram, sirkazhi and karaikal.

    chennai dry like situation.

    ss.

  112. Suresh,

    I dont see it, can you give me the link?

  113. Sirkazhi 270mm

  114. if any one know this pl. clarify.

    there are lots of blue dots and lines in closed view radar up to 150 KMS north east of chennai. what it actually denotes. most of the times we can see, but not even drizzle. is it relate to cloudiness ?? even the leatest radar readings indicate good blue dotted lines east north east of chennai but showing no movement for the past one hour.

    ss.

  115. heavy rains still below kalpakkam and it maintains the same trend even today. but satellite pictures ( 5. 30 AM) reveals there is a clear cut north movement of cloud mass above nagapattinam. We have to wait till the actual rain belt touch us.

    Most of the places south of kalpakkam up to cuddalore, karaikal received heavy showers till this morning.

    ss.

  116. KEA.

    Still the satellite picture is more encouraging. more than half of the thick cloud mass in open sea and the boundary extended up to nellore ongole. I think chennai would get its share of quota soon – today and tomorrow early morning.

    Yesterday night there was a heavy down pour for 10 minutes but that did not picked up. let us see today.

    ss.

  117. Gud Morning all,
    It rained all night and still continuing here in Kumbakonam. No sign of leaving off. Flooded everywhere and the paddy fields has been drowned entirely within this area.

  118. KR,
    Where did you get Cuddalore figures from?

  119. in which direction are the clouds moving now???

  120. SRI picks up a red spot to SE of tbm….thats why SE is pitch dak ere

  121. SE has suddenly got pitch dak ere….if dat cloud mass to SE of chennai moves NW it will be awesome!

  122. Delta guys any updates?

  123. Pondy should have got 20cm+ lik cuddalore as well.. it s all set for a 200cm.. Chennai at a loss !! Whats the reason…Vinod anything to do with ridge?

  124. 431.8mm is the normal NEM rainfall for TN…till sterday we are already at 421.0mm :)

  125. Pondicherry,Cuddalore,Kalpakkam and their allies would be mostly topping….. how about delta districts.. gta,mohammad updates?

  126. hi…. good morning..is cool morning

  127. Cuddalore 199mm till 5 30 !!!! The rainiest district capital is going to complete its normal !!

  128. Its raining raining raining in thiruvarur non-stop…it might be touch 15-20cms in today report.wat abt chennai guyz.still no rain…oly a chance f rain p:

  129. HI Good Morng, very light drizzle in chromept, good to start with a wet weather

  130. Drizzle started in Adambakkam

  131. RR increasing…. :) …ground is wet now :) ..today is our day :D

  132. Radar pickin up heavy rains just to east of tbm and mount in sea.. :)

  133. Heavy drizzles ere now.

  134. radar shows some li8 rains reacing south chennnai

  135. Drizzlin ere now !

  136. Due to La nina decembaer mi8 continue to be wet…..this NEM can give a close shave to 2005 NEM :) ..Wich was 83% above normal :)

  137. Our time is comin…we will get one 10cm+ soon! :)

  138. Cuddalore has got 145mm till 11.30PM!!..from 5.30 to 11.30 it has got 119mm!


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