RT @AratiKumarRao: @weatherofindia been pouring in Chalakudy and surrounds almost all day today. #kerala #monsoon 9:15pm

#Chennai today rain, Airport - 26.4 mm and Nungambakkam - 14.2mm

Here is a good collection of #Chennai rain related Tweets and Photos.

sacmucsk2:22pm via Web

Raining in Anna Nagar. #chennai@weatherofindia

maddysutrave2:27pm via Twitter for BlackBerry®

Finally some rain !! #Chennai #mogappair@weatherofindia Thank god

vipinkumar_g
2:47pm via Twitter for BlackBerry®

@weatherofindia raining in Karapakkam with slight thundering. OMR - 2:45pm #weather

rangats2:57pm via Twitter for BlackBerry®

@weatherofindia heavy rains at meenambakkam - chennai airport surroundings 3 PM

Turquoizzze2:57pm via Twitter for Android

@weatherofindia its raining quite heavily here... south chennai

ranganaathan3:00pm via Web

Cloudy weather, drizzling in T-Nagar, Hear North Chennai is receiving good rains @weatherofindia

vasudevan_k3:08pm via Twitter for iPhone

@ranganaathan Good rains in perambur. @weatherofindia

thisismmk MohanKumar6h

@weatherofindia 3pm rains lashing velachery pic.twitter.com/DWwn92CXYn

dskumar_20003:21pm via Twitter for Android

@weatherofindia raining in dlf porur heavily last 10 mins

fourvees91 vaidyanathan5h

@weatherofindia Its raining with heavy lightning and thunder at Madippakkam since 2:45pm. pic.twitter.com/gIedUtg6Xu

Yamiskr6L yamzz5h

@weatherofindia. 3:30pm heavy rain in ambattur pic.twitter.com/sfobsyQAxu

chronics16 Prashanth5h

@weatherofindia scene from my office at tharamani Chennai pic.twitter.com/VfEJGgq3CQ

beingBritz B (:6h

Watta wow.. chennai now.. pic.twitter.com/8yknTaHOBz

vinesh3107 Vinesh Chathurr6h

Raining like crazy here in #Chennai. Can hardly see the road even with the wiper at full speed. pic.twitter.com/ukARRlMYkl

ImSandeshJain SD.5h

#Chennai #Rain pic.twitter.com/6Mn2c4O90x

ChennaiCentral The Hindu - Chennai4h

This is how our office looks like right now! #Chennai #rains pic.twitter.com/jptSNNvbs6

Bagzzie Bharghavi Chari4h

#chennai #rains #beautiful #ilove :) :* pic.twitter.com/d2g2r8YXCt

6pm, After #Chennai, now it's turn for most of central,N,N-E,N-W Tamilnadu to get heavy T.showers ... http://ow.ly/i/2ieI8 

RT @rajugana: Bangalore 6.40pm, Sunny,hot n humid day, Formation of T. Clouds n eve, raining at some places.Sky pic http://t.co/lpgSra86bk 

6pm, #Monsoon rain picking up strength ALL along Karnataka and Kerala coast.!

RT @arvindjshah: @weatherofindia Raining cats & dogs here in Cochin #Kerala (7:28 pm) 

RT @ganpatteli1: @weatherofindia Delhi is getting ready for pre-monsoon rain http://t.co/1KyI44OsiN (4:09pm)

RT @ganpatteli1: @weatherofindia 1st pre-monsoon shower has started in Delhi. storm and dark sky. lovely drizlzling (4:56pm)

5:30pm, Lots of T.showers ALL over Madhyapradesh, Bihar, Jharkand, S.Bengal, S.Odisha, N-E.Andhra, N-W,W.Maharastra. http://ow.ly/i/2ienW 

Chennai - 2:55pm, heavy thunder storm for the past 35min over Pallavaram zone.. photo http://ow.ly/i/2i9LD

RT @archvivekh: Someone somewhere heard my prayers. Its drizzling here in ambattur, #Chennai @weatherofindia (2:15pm)

#Chennai - 2:16pm, Drizzling now over Pallavaram zone.

RT @shri611: #Chennai #Rain Tiruvottiyur .. http://t.co/1aqsyOm4Op (1:54pm)

RT @naveenkumars84: @weatherofindia Its raining in #Vepery #Chennai (1:13pm)

RT @shri611: Its pouring in North #Chennai (Tiruvottiyur). #Rains. @weatherofindia (1:43pm)

RT @kaymenon: @weatherofindia @shri611 #Trivandrum  #Rains : Medium to strong wind along with rain over Trivandrum sky at 1:50 PM 

Today, the trough from N-W India is seen up to S.Chatisgarh with a circulation over Chatisgarh ... http://ow.ly/i/2i7Wx 

Today, Heavy T.showers expected for N,N-W,S,central Maharastra, S,S-central,N.Karnataka and central,N,N-E.Andhra.. http://ow.ly/i/2i7YU 

T.showers also expected for S,S-W.Madhyapradesh, S.Odisha and N-W,N.Tamilnadu.. during next 24hrs.

@oreojit >> #Kolkata - Scattered Low intensity showers expected from today till 10-Jun.

During next 3 days, most of N-E states is expected to get widespread rain ... http://ow.ly/i/2i8ag 

RT @aash_tvm: Hmm.. Sun is shining now. It was raining here an hour before. #Trivandrum #kerala #Malayalam @weatherofindia (10:04am)

RT @kaymenon: @weatherofindia #Monsoon Trivandrum not getting strong showers... Partially clouded sky since yesterday.. (12:53pm)

Today, the circulation along Oman coast and N-W Bay has weakened ... http://ow.ly/i/2i7yv 

From today, the #Monsoon current along Karnataka & Kerala coast is expected to strengthen again, Good signs are there http://ow.ly/i/2i7CE 

#Chennai - 12:30pm, temperature around 35 C, Humidity = 47%. Breeze from W-N-W.. "Showing early signs of Thunder cell formations"

#Chennai - From today till 10-Jun, the city can expect evening or late-evening Sharp showers or T.showers !

From today evening till 10-Jun, Widespread #Monsoon rain expected for N,central Kerala and will be scattered over S.Kerala.

Tomorrow, Very heavy and widespread #Monsoon rain expected for N,central Kerala and Karnataka coast ... http://ow.ly/i/2i7Mq 

Tomorrow - the #Monsoon will enter into #Goa and S-W.Maharastra coast ... http://ow.ly/i/2i7O2

Latest COLA model suggests the #Monsoon will push into #Mumbai on 9/10-Jun ... http://ow.ly/i/2i7Qb 

Monsoon Outlook bright for forecasted Advance along  West Coast:

With the expected formation of an upper air trough (at 700 hpa), roughly in the 20N line in the Arabian Sea, we see enhanced prospects of the Monsoon “respecting” vagaries’ expected date of arrival along the west coast of India.

This trough is expected to extend Eastwards, and form an off shore west coast trough, tilting westwards by Friday 7th.

On Thursday 6th, we see an embedded UAC near 60E (off the Oman coast). 

Soon, within 2 days, it will align itself from Saurashtra  downwards thru  Konkan  upto  Kerala.

As the SW wind strength and depth will be upto the 700 hpa levels, we can expect the Monsoon to  advance into Goa and South Konkan by Friday 7th. Heavy falls expected in Goa and South Konkan next 2 /3 days.

Seemingly good support from a NW India upper air low, we can safely assume SWM to move into North Konkan and Mumbai by Sunday, 9^th. 

More details on vagaries