December 06, 2015 at 06:07PM

5:30pm, Less or Almost no convection seen along Tamilnadu coast and Chennai... #iwm http://pic.twitter.com/aFqHR1zIE5

— Indian Weather Man (@weatherofindia) December 6, 2015

For more tweets follow :: @weatherofindia

December 06, 2015 at 01:27AM

@SharmaTweeting .high pressure in central India "may not" allow these heavy rains to push to Chennai, but central coast TN will get it. #iwm

— Indian Weather Man (@weatherofindia) December 5, 2015

For more tweets follow :: @weatherofindia

December 06, 2015 at 01:25AM

#prayforChennai #Chennaifloods #Chennairains Brace for some Heavy rains. Full report on floods will be posted in next 12hrs. #iwm

— Indian Weather Man (@weatherofindia) December 5, 2015

For more tweets follow :: @weatherofindia

1:10am, HEAVY convective activity over SW-central Bay, some "will" push to central,N coast Tamilnadu, Chennai .. https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0hPq.jpg

12:45am, a heavy rain band is approaching N-coast Tamilnadu and South Chennai from SE.. https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0hw4.jpg
12:45am, already moderate rain seen along Chengelpet to Mahabalipuram zone.

HEAVY rain ahead for N,central-coast Tamilnadu, some for Chennai

Latest, the SW Bay circulation is now over Comorin sea, just South of kanyakumari ... https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0cRa.jpg
In 36hrs, this circulation is expected to drift West into SE corner Arabian sea and fizzle out over Maldives.

Meanwhile, the Easterlies will be strong upto 13/14 latitude (Chennai) till evening of Monday.
So more rain ahead ! https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0djm.jpg
Low,mid-level anti-cyclone is expected to push into central India in next 24hrs... this'll push DRY cold winds South .. https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0dDN.jpg

#Chennai - On Today (Sunday) and till Monday evening, intermittent moderate / heavy rain expected 
Chennai latitude (13N) is going to be a boundary for dry and moist wind during next 36 hrs, before this dry air pushes South.
One can observe the high pressure contour and dry & moist air boundary along 13 N (or) Chennai latitude .. https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0gX9.jpg
#ALERT
Chennai - a 40% chance of getting "prolonged" HEAVY rain from noon/evening today to morning of Monday especially for South suburbs.

#Alert
For N,central-coast Tamilnadu upto Karaikal, HEAVY rain will continue on today, Monday, Tuesday !
Scattered HEAVY T shower #Alert for S,S-tip,central Tamilnadu today and on 7-Dec... https://d2jhuj1whasmze.cloudfront.net/photos/normal/f0h54.jpg

December 05, 2015 at 11:00PM

From 6am, 1-Dec to 6am, 2-Dec ... IWM Polichalur recorded 301.5 mm #Chennairains #chennaifloods #iwm

— Indian Weather Man (@weatherofindia) December 5, 2015

For more tweets follow :: @weatherofindia

December 05, 2015 at 10:35PM

After taking part in Historic #chennaifloods We are back ONLINE after our last update.. https://t.co/XZEH11LP9h at 11:19pm, 1-Dec #iwm

— Indian Weather Man (@weatherofindia) December 5, 2015

For more tweets follow :: @weatherofindia

Chennai: Mostly cloudy on Wednesday with frequent showers. The intensity could be heavy, but shorter duration. The 24 hr rainfall could be around 50 mms. The sky may show some clearing by evening. Decrease in rainfall on Thursday.Rains may linger on throughout this week though.

Pradeep informs us :"Historic Rains comes to end. 30000 cusecs released from Poondi and 29000 cusecs released from Chembarabakkam"

The formation of the Vortex has weakened, or rather it has to an extent merged in the trough. The Vortex normally remains stagnant as explained earlier.
But, some charters prefer to show the formation as a Low (shown in a chart yesterday on this site).
 
With a rigid High pressure ridge in the North of the formation, and obstructing the trough, the whole system was "blocked " from moving North. The anti cyclone (again) played a part in the prolonged rainfall over Chennai
www.vagaries.in

December 01, 2015 at 11:19PM

For Chennai, central, N-coast Tamilnadu and S-coast Andhra .. Rain not going to stop till 1 or 2am. #flood . #chennairains #iwm

— Indian Weather Man (@weatherofindia) December 1, 2015

For more tweets follow :: @weatherofindia