The depression over southwest Bay of Bengal moved westwards, intensified into a deep depression and lay centred at 0530 hrs IST of today, the 29thOctober 2012 over southwest Bay of Bengal near latitude 9.50N and longitude 84.00E, about 550 km southeast of Chennai (Tamilnadu) and 300 km east-northeast of Trincomalee (Srilanka). The system would intensify further into a cyclonic storm and move westwards for some more time and then move northwestwards and cross north Tamil Nadu and adjoining south Andhra Pradesh coast between Nagapattinam and Nellore by 31stOctober, 2012 evening/night.
huge movement towards south from 9.5 to 8.7
can anyone explain which such huge movement 2wards south happening
yes is that moveing south or it like to start to move to north ?
it looks that kea’s location is surrounded by clouds. eagerly waiting for the first drop of rain from this system
sorry. 1st spell of rain
Notherly movement will start only from tomorrow morning.
Click to access cwind.pdf
See the forecasted track from IMD
15CM rain forecast for chennai as per accuweather.
its very windy outside.but since the system is too coast chances of a strong cyclone looks slim
too close to coast*
do u really want a strong cyclone. Currently IMD predicting 80-90 KM wind during landfall
i would be happy if Chennai receives anything >15cm with winds of 80-100
Nilam to cross between Nagapatinam and Nellore by Wednesday evening.
Chances of landfall near Chennai is high
seeing positive comment after a long time
Back to action after a break
metcast predicts close to 270mm on 31st
NOW IMD ALSO ACCEPTED AND UPDATED OUR SAME STATUS…
DD will move to N.SL will last till today eveng..and start the movement of W-NW from today night and swipe the entire central TN coast tomorrow and will hit chennai by tomorrow night and moving to S.AP on wednesday..
On the way to chennai from kanyakumari. No rain with overcast sky.
Had some showers yesterday. Now stopped. Hopping for a bang.
every alternate post is getting blocked wen i try to access through Vodafone edge.tis post is accessible though
Same here previous not working this topic is working
Jon, posting on mobile thru Vodafone does not work. If you are using a smartphone, download the wordpress app and access it thru there
its working now.anyways ill download tat app
for me too, whenever i try to access through vodofone3g, it gets blocked and it shows some message says as per Directions issued by the Department of Telecommunications or similar(i couldn’t remember the exact content)
BY today eveng…Cyclone NILAM NAME IS GOING TO BE OURS…
cheers..
@pradeep, do u have the url of univ of Wisconsin storm tracker site which we followed during laila,jal n thane? Seems i have lost it
same here
kea
where is that link WEAKENING FLAG ON/OFF (example)
gud example thunderkid š
I think it comes only after formation of a cyclone
WEAKENING FLAG ON/OFF Link
http://www.ssd.noaa.gov/PS/TROP/DATA/2012/adt/text/
still current bay system is not listed since it not reached cyclonic status as kea said
http://tropic.ssec.wisc.edu/real-time/adt/adt.html
As per the track given by IMD 12.3N and 80.5E. This should be near to mahabalipuram. This will cross coast Wednesday evening 5.30PM.
This is unimaginable. This will cross MHB coast and travel northwards between arakkonam and chennai, then to AP.
Rain till 01st Nov 2012. Imagine the quantum of rainfall. TS can be expected through out the night of 31st October.
This was happened once. I remember the cyclone crossed coast near Cuddalore one evening and travelled north in between chennai and arcot.
That night was horrible. It was a huge thunder storms lashing the whole night. Just that night we have received 15CM.
I never experience that amount TS in my life. Whole chennai was afraid to come out. It was a black out.
KEA do you remember that year???
when was this? Long time back or recent past?
Probable 20 year back.
20 years ? what is this ? Many of our young bloggers were not born that time. Partha- born on 1935?
Are u referring to Nisha???
But IMD says it was 9.5 & 84.0 at 0530 hours, does it mean it has moved much back and forth in a matter of overnight.
anything within 0.5 degress is a marginal change and does not really matter
WEAKENING FLAG ON/OFF Link
http://www.ssd.noaa.gov/PS/TROP/DATA/2012/adt/text/
still current bay system is not listed since it not reached cyclonic status as kea said
Thank you. I was looking for this link only.
yajuradhithya – the answer is no one really knows if it will move south or move north. All these are predictions. Some more accurate than others. Why dont we wait till today evening/tomorrow morning before further clarity is seen ?
Its all the fault of the experts. They create so much expectation and hype that when it does not happen quickly enough the ordinary person is left frustrated.
Cola is still forecasting max of 26.00MM????
KEA,
Can you check the records in the past 20 years the D or DD which has crossed TN coast and travelled north on the land and reached AP????
i guess it is 1996.
surface winds increasing gradually…..did anyone notice?
http://tropic.ssec.wisc.edu/real-time/storm.php?&basin=indian&sname=93W&invest=YES&zoom=4&img=1&vars=11111000000000000000&loop=0
Cola – 180 mm
Foreca – 230 mm
Accu -150 mm (not updated yet)
WU – 60 mm
KEA – 125 – 175 mm (based on current forecasts)
What is absolutely ridiculous is the way the tv media is showing Sandy hurricane on TV without paying any attention to the one here. Shows the extent of their thinking.
the news Channels in US concentrate on Sandy.. The thing is, the local channels here may not be much aware of the current situations here.. If the IMD or local RMC comes out with tracking page or continues updates, they’l focus on this storm..
Ramanan waiting for official stmt (thro fax) from Delhi
I wouldnt expect the US channels to concentrate on Nilam or even mention it in passing. How about NDTV or Times Now or Headlines Today even mention a single line about Nilam ?
Uh, tey are not local channels here… Ours is sun tv, jaya tv, pudhiya thalaimurai, etc.. these channels itself not concerned much abt it. so y those NDTV, etc shld follow nilam???
SYSTEM CROSSING IN BETWEEN MAHABALIPURAM &CHENNAI…………..
CROSSING AS CYCLONIC STORM……KANNA RENDU LADDU THINNA ASAAIYA?
3 laddu. Sel, you have to change your name to selcylone once if that happens
ha.ha..lol
Raja,
I have updated in my previous comment. Please check.
IMD range is quite wide. Naga to Nellore
imd is pretty good in tis kind of prediction..i mean landfall spot. it will fall under their stretch
Cuddalore was powerless for one month during Thane. What abt for Nilam in Chennai ? .If that happens, TN will get uninterrupted power supply for a month
we the bloggers want 80KM/hr wind in chennai and the truth is we will not get electricity for the next few weeks. We can expect rains, not stromic winds / rains which will spoil the economy of the poor people and lives of few. Anyway nothing is in our hand, and lets not expect a cyclone to cross Chennai or any other area. if its crossing as a DD which will give enough rainfall with less wind speed
Grully,
Probably before that, 1990-1995. Must be those times.
Chennai will have only few areas where underground cables in place
* Chennai has
30-40cm of rain for chennai from 29th oct to 5nov as per cola.
Sel, It will come right ? I have projected too much with in my friends circle.
Selvan/Raja,
Cola mentioned as MM in bracket. They have projected only in MM not in CM.
Selvan/Raja,
I have updated in the morning itself that this system will cross near Mahabalipuram. I was the first to update.
Please check my comments in the morning.
oh..fine.
yesterday my network struggled to reach 600kbps..but now its crossing 3mbps….tats the speciality of monday.
Sitting at home? Study holidays for you Sel?
ya sitting at home….tday holiday for my animation class.
Is there any possiblity of cyclone moving north towards AP with out any rain(less than 5 cm) in Chennai ?
Now system formed. It is right time to predict its track. Any change in prediction for this system?
This is the Cyclone track page by univ. of wis – madison, once the storm gets its name, it’l start tracking..
http://tropic.ssec.wisc.edu/real-time/adt/adt.html
Thanks š
can refer this also
http://www.ssd.noaa.gov/PS/TROP/DATA/2012/adt/text/
@gs_18, TV coverage will be more and more rediculous and irresponsible as the storm comes closer to the coast. This is my past experience.
Whose tv coverage ? American or Indian ? Please clarify.
Indian!
raja,dont worry if it is lp,it will rain for whole day and v will get around 10cm or 12cm… incase of cyclone or DD,if it POURS for 5 HOURS figures will be crossing 20cm in no time… ongole got 55cm from laila in 24 hrs i think,,,wrt to our system,if it moves slowly, v can make some huge figures
IMD says Cuddalore and Nellore by 31st October in morning report. How they moved it to further north in no time
Rain will begin from the evening.
http://www.foreca.com/India/State_of_Tamil_Nadu/Chennai?map=rain
partha,ya,i knw tat, its in mm..
Selvan,
40MM it is not at all possible. How come they update like this.
Both cola and foreca are similar.
http://timesofindia.indiatimes.com/city/chennai/Wet-week-ahead-as-clouds-move-towards-Chennai/articleshow/17000116.cms
mainstream indian media has started reporting on Nilam !
Looks like it has moved down further… Now at 8.7
http://www.ssd.noaa.gov/PS/TROP/DATA/2012/tdata/wpac/93W.html
yeah… further westwards also.
Does IMD has their own model or do they rely on international models?
I think , they follow GFS model.
tey’ve mentioned, “Based on latest analysis with NWP models and other conventional techniques” . So tey are using all kinds of models.
also tey prefer GFS mostly..
Now in Nagapattinam wind is blowing and waves are damn crazy
Team – A big question… Is Nagapattinam in South TN or north TN. Looks like for IMD it is north TN..
It is in Central TN. So both may be correct if no line is drawn
KEA,
Have you found out in which year the same type of movement was made by DD???
kea.metsite recorded 31km\hr wind speed at 11.34am…
Today evening Nilam will be named.
hopefully in their 5.30 bulletin
@kea We are nearing 900k hits !!
Congatulations KEA,
You will reach 1000 today. Before naming Nilam.
Ramanan says, computer(kanini) based prediction shows system will move towards TN
partha,i told my view regarding cola ‘s forecast map…v shld be getting 30-40cm if v go by cola
Looks like rain may get delayed for Chennai, if system strengthens further
lat sat looks hopeless
11.30am image?
weatheronline 12 ist image
Forecast at 11.30AM.
BOB 02/2012/05 Dated: 29.10. 2012 Time of issue: 1130 hours IST
Sub: Deep Depression over southwest Bay of Bengal: Cyclone Alert for North Tamil Nadu, Puducherry and adjoining South Andhra Pradesh coasts
The deep depression over southwest Bay of Bengal moved westwards and lay centred at 0830 hrs IST of today, the 29thOctober 2012 over southwest Bay of Bengal near latitude 9.50N and longitude 83.50E, about 530 km southeast of Chennai (Tamilnadu) and 270 km northeast of Trincomalee (Srilanka). The system would intensify further into a cyclonic storm and move westwards for some more time and then move northwestwards and cross north Tamil Nadu and adjoining south Andhra Pradesh coast between Nagapattinam and Nellore by 31stOctober, 2012 evening/night. Based on latest analysis with NWP models and other conventional techniques, estimated track and intensity of the system are given in the table below :
DATE/TIME(IST) POSITION (LAT. 0N/ LONG. 0E) (KMPH)CATEGORY
29-10-2012/0830 9.5/83.5 55-65 GUSTING TO 75 DEEP DEPRESSION
29-10-2012/1130 9.5/83.3 55-65 GUSTING TO 75 DEEP DEPRESSION
29-10-2012/1730 9.5/83.2 65-75 GUSTING TO 85 CYCLONIC STORM
29-10-2012/2330 9.5/82.9 70-80 GUSTING TO 90 CYCLONIC STORM
30-10-2012/0530 9.7/82.6 75-85 GUSTING TO 95 CYCLONIC STORM
30-10-2012/1730 10.0/82.0 80-90 GUSTING TO 100 CYCLONIC STORM
31-10-2012/0530 10.7/81.5 80-90 GUSTING TO 100 CYCLONIC STORM
31-10-2012/1730 12.3/80.5 80-90 GUSTING TO 100 CYCLONIC STORM
01-11-2012/0530 14.0/79.5 55-65 GUSTING TO 75 DEEP DEPRESSION
01-11-2012/1730 16.0/78.5 25-35 GUSTING TO 45 LOW
The satellite shows very dense cloud over S.Tn. But no rain at all. Wondering why.
no rain ???? where?
jon,dont worry tat rain band in s.east quadrant will b hitting us.. http://www.imd.gov.in/section/satmet/img/qpe.jpg
hope so.still jal memories r yet to vanish
Wind has died down past half hour
but here winds blowing crazy
Is it because of the system moving south?
Another confirmation of southwest movement…
http://www.ssd.noaa.gov/PS/TROP/DATA/2012/tdata/wpac/93W.html
http://www.youtube.com/watch?v=0fC4yP8aQ-c check the wind direction and wave height in Nagapattinam now
windy and gusting at times….no rain?????
no rain from 10am itself but windy
no rain so far in chennai..
Flash News,
Forecast Track from IMD. Check Out.
http://www.imd.gov.in/section/nhac/dynamic/obtrack.htm
As per IMD there is no rain for south TN,ie from Madurai ,, from this system … i am right
Madurai is north TN for IMD. Lol.
now it movieng to 8.6N 82.9E
http://www.imd.gov.in/section/nhac/dynamic/qlm.htm
another track from imd…
can u c the cloud moving direction ??? pls report it …low clouds
north east
The confusion still continues….will Nilam hit or miss Chennai?
Yajuradithya,
You are frustrated.
Rain bands have not reached chennai as of now.
As per WV insat pic it is still not with in the reach of chennai. Hope this will reach us by tonight.
š
i hope it will
All of you,
Please stop confusing. This system is going to hit TN, that is for sure.
As of now the intesification process is going on. During any intensification the circumference of clouds will be minimum. Once the system near the lanka coast the rain bands will pick up and rain will start smashing.
Please have patience till evening. Do not hurry. This forecast has been given by me for the past 4 days.
No more queries on the rain and movement of this system.
Gud one.
But only concern is it should not be a repeat of “Laila” that threatened Chennai in 2010 May.
Thanks partha.. its clear now!!
But only concern is it should not be a repeat of āLailaā that threatened Chennai in 2010 May.
For a summer cyclone, I think Laila did more than what is was expected to. You do not get 19 cm in a day in summer.
Did Chennai receive 19 cms? If so awesome!
http://www.kea.metsite.com/2010_05.txt
I have already declared School holiday at home for next 2-3 days. Will the rains reach in time?
Tathastu….
no holiday n all.u wil have to drop ur kid to school everyday š
Radar not updating… Sign of good times?
RADAR not updating in last half hour.
When will rain bands reach pondy? It looks now it is now disorganised. Any one knows the cyclone formed in north central bay and came down and crosses near mahabalipuram
Another bouncer from Dhinagar.
How many time i have to explain.
Please follow the comments made from the morning.
Update from SL Met department (http://www.meteo.gov.lk/index.php?option=com_content&view=article&id=61&Itemid=70&lang=en)
BAD WEATHER ADVISORY
Issued at 29th October 2012 at 1030hrs valid for next 24 hours
(Issued by Early Warning Center of the Department of Meteorology)
The depression has intensified into deep depression and was located about 200 km East of Mullaitivu at 0830 hours today (29). It is likely to move Westward causing heavy showers and strong winds over most parts of the country and surrounding sea areas. It is expected to intensify further in to a marginal cyclone ( not severe ) and move over northern part of Sri Lanka tonight.
Shallow and deep sea areas off the coast extending from Jaffna to Batticaloa via Trincomalee will experience very rough conditions, strong winds and intermittent rain. Therefore fishing and naval community is advised to refrain from maritime activities in these seas. Most parts of the island will experience rainy conditions. Strong winds and very heavy rain falls (more than 150 mm) will also occur in the Eastern, Northern, North- central and North -western provinces. Scattered heavy rain falls (more than 100 mm) are also expected elsewhere
The situation is being continuously monitored, and the public is advised to be vigilant to the weather information released by the Department of Meteorology.
Interestingly this forecast predicts a westward movement and also movement over North Lanka. That means the system will be in Palk strait and a best case scenario for heavy rain all over TN.
It looks like this system will come around Srilanka to TN
IMD still believes that Arabian sea cyclone would reach Gujarat – News from October 29
lol…it wont reach there
THERE IS DIVERGENCE IN NWP MODEL GUIDANCE THEREAFTER AS SOME MODELS SUGGEST NORTHWESTWARD MOVEMENT TOWARDS NORTH TAMIL NADU AND ADJOINING SOUTH ANDHRA PRADESH COAST AND SOME OTHER MODELS SUGGEST CONTINUOUS WESTWARD MOVEMENT TOWARDS NORTH SRI LANKA COAST.
whether South tN will get rains by this system… especailly Tirunelveli,tuticorin and kanyakumari dist…
Radar is back… Raining in South Coastal Andhra – North West of Chennai – No rains for Chennai yet.
Some rainfall figures from Nilam as on 29.10.2012
in mm
Sembanar Koil – 135
Nannilam – 107
Karaikal – 107
Nagapattinam – 98
Manimuthar – 68
Cuddalore – 67
Kulasekaram – 62
Vedaranayam – 61
Kilvelur – 59
Kanai – 43
Pamban – 42
Tirutturaippoondi – 41
Perunchani – 40
Trangambadi (Nagapattinam Dist) 13, Karaikal (Karaikal Dist) 11, Nannilam (Tiruvarur Dist) and Nagapattinam (Nagapattinam Dist) 10 each, Manimutharu (Tirunelveli Dist), Cuddalore (Cuddalore Dist), Tiruvarur (Tiruvarur Dist) and Sirkali (Nagapattinam Dist) 7 each, Vedaranyam (Nagapattinam Dist) 6, Mylaudy and Kuzhithurai (both Kanyakumari Dist), Marakkanam (Villupuram Dist), Pandavaiyar head (Tiruvarur Dist) and Rameswaram (Ramanathapuram Dist) 5 each, Thiruthuraipoondi, Kodavasal and Mannargudi (all Tiruvarur Dist), Pamban (Ramanathapuram Dist), Kollidam (Nagapattinam Dist), Chidambaram AWS (Cuddalore Dist), Kanyakumari and Nagercoil (both Kanyakumari Dist) and Vanur (Villupuram Dist) 4 each, Mayiladuthurai (Nagapattinam Dist), Needamangalam, Muthupet and Valangaiman (all Tiruvarur Dist), Mahabalipuram (Kancheepuram Dist), Pattukottai and Madukkur (both Thanjavur Dist), Sethiathope (Cuddalore Dist), Pechiparai (Kanyakumari Dist), Ambasamudram (Tirunelveli Dist) and Tindivanam (Villupuram Dist) 3 each,
Nagapattinam, cuddalore, karaikal still enjying rainfall..
In Madurai now not even a drop untill now. This is really disappointing.
Even no rain in Chennai. U r talking abt Madurai
System Moved North…
another track from imd…
http://www.imd.gov.in/section/nhac/dynamic/MME_TRACK_INTENSITY.htm
Little movement towards north.
http://tropic.ssec.wisc.edu/real-time/windmain.php?&basin=indian&sat=wm5&prod=vor&zoom=&time=
Again Cuddalore,?? still it didn come out 4m thane destruction…
http://www.youtube.com/user/TheWeatherChannel?v=yXMU2qwCVag
Heavy rain in nagapattinam now
Clouds are getting thick in chennai… no rain as of now!
That’s good. Enjoy the rain and keep us updated at regular intervals…
the rain clouds are coming 4m south east
I hope by evening it reaches chennai..
Imd prediction landfall near pondy
@ dinagar2dinagar is it raining now in pondy??
As of now bright sunshine in Pondy no rain from the morning today
That’s good. Enjoy the rain and keep us updated at regular intervals…
DD STATUS :
Status at 0800 UTC ( 1.30 PM IST):
Presure : 1000mb
Windspeed : 30 kts
ANALYST : TS
LAT : 8.8 N
LON : 82.9E
CAT : TS
I think rain bands are starting to affect chennai.
Max temp is down, wind average is increasing from time to time.
We can expect rain before 8 o clock tonight.
What do you think selvan????
May take even longer time to get real rain. May get drizzle from late evening .
I think it would even take longer.. Nilam seems steady in its position.
Raja did you look at those satellite images. As per sat img we suppose to get rain
Sat image won’t give you clear idea whether it will rain or not unless we have dedicated radar in Madurai for south TN. Look at WV image, you get fair idea .
As per Rajesh sir blog DD will hit sivaganga and ramand
BB-10, depression, and getting deep, is now at 9.6N 83.7E, almost stationary since our last report ( Yesterday, below), as a depression at 1000 mb and getting deep. Just East off the Northern tip of Sri Lanka, it will move along the projected track and hit Central regions of Coastal TN, near, Sivaganga and Ramanathpuram, as a deep Depression.
Coastal regions of TN will be gusty with 35-40 knts winds and Chennai as expected strong NE winds.
Peak of the precipitation will be in central TN with some places getting upto 12-15 cms and maybe 18 cms in the odd place.
Interesting prediction, but without any radar activity around Madurai,how come to say;to hit around Ramanathpuram cost..
historically it’s a very rare place for a landfall..
came across tis vdo http://m.youtube.com/watch?gl=IN&hl=en&client=mv-google&v=CuBo6n6N768#watch_actions
201210280600: 9.4N 84.0E
201210290600: 8.8N 82.9E
In 24 Hrs it moved 138.128Km at less than 6 Km/Hr. Direction 1.1E and 0.6S.
For all practical purposes we take it as stationary. Wind speed gain 5+ knots in this 24 hrs.
Source:
http://rammb.cira.colostate.edu/products/tc_realtime/storm.asp?storm_identifier=WP932012
http://jan.ucc.nau.edu/~cvm/latlongdist.html
good one
Outer bands of the DD reaching chennai coast…rain will start from night..
http://www.imd.gov.in/section/satmet/dynamic/insatsector-e-vis.htm
This DD is moving very slowly… SO…rapid intensification & direction changement can be expected soon..
Surprisingly IMD update is out. Cyclone to follow S-W track until this evening and then hopefully move N-W.
Based on this rains can start only tomorrow
Yeah. It is actually a 2 PM bulletin instead of 2:30 PM.. They started a little early to surprise us… They expect a south west movement and change track to north west only after mid night IST.
But reports says based on 1430 readings.How is that possible ?
Based on current IMD tracking, 75 will be difficult to achieve
Good question.. Didn’t struck me.. Have to ask IMD.
Heavy wind and rain in Nagapattinam
The plant in focus is Pavazha malli right?
Exactly
IMD Mid Day bulletin is also out.. Nothing much except that they expect wide spread rainfall in Tamil Nadu starting today for the next 3 days.