6:20pm, Heavy Rain seen along 25 / 30km S-W from #Chennai city.. now it is over Poonamalle and Sriperumpudur zones.

6:15pm, Lots of T.showers has lined up over N,N-E.Tamilnadu and into S.Andhra ... http://ow.ly/i/2dDCp 

:: UPDATE ::
#Chennai - 6:40pm, #Rain now over Meenambakkam to Guindy road!

RT @divakarchennai: @weatherofindia #Chennai Raining @ Pallilaranai & ECR.Heavy wind & lightning too. (7:17pm)

#HOT cities of #India on 27-May, Allahabad­ 45.5 C, Hamirpur (UP) & Banda 45.2 C, Khajuraho­ 45.0 C

#HOT at 2:15pm, Nagpur = 44 C, #Delhi = 42 C, Amristar, Jaipur, Varanasi = 40 C, Ahmedabad, Thiruchirapalli = 39 C.

#Kolkata - 2:20pm, airport has reported "Light rain" with temperature around 29 C.

#Chennai - 2:10pm, temperature around 36 C, Good sea breeze seen from E-S-E.

@vigneshmohan >> #Chennai - Models indicate a good chance of T.shower towards late evening !! It may be restricted over S-W,W suburbs alone!

Monsoon update - 28-May-2013

Up to today morning, the South West Monsoon over Bay is progressing very well.
The LOW "95A" near Oman coast is slightly hindering the Somali jet flow towards the Kerala coast.
Today, the Somali low level jet is very active and pushing N-N-E into central Arabian sea.
As per the latest model analysis, the strong monsoon current is expected to reach Kerala coast on evening of 1-Jun-2013.

Today, 1:30pm, Showers seen all along Kerala, Karnataka coast, Goa. Most of the showers have not pushed into land.

The low intensity showers along Kerala and Karnataka coast is expected to persist till 31-May.
Today's COLA model also predicts the Monsoon to reach Kerala coast with Very heavy rains on evening  / night of 1-Jun-2013.

Update on LOW - "95A" and "94B"

"95A" - Along Central Oman coast in Arabian sea
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11:30am IST, Satellite visible shot shows good T.showers have pushed into central Oman coast.

Latest IMD - GFS predicts that the system along Oman coast is expected to persist for another 4 days, almost in that same position. This is amazing, for a circulation to persist in that same zone for a long period of time.
The system is expected to intensify on 31-May, and it may push fully into Oman on 3-Jun.

If this system intensifies, the Monsoon current reaching Kerala coast may get weakened (or) may not reach as well on 3-Jun.

"94B" - Over N.Bay, just south of Bangladesh coast.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12pm IST, Satellite visible shows heavy convective activity over most of N.Bay, pushing into S.Bangladesh.

Latest analysis show that "94B" is a marked LOW pressure system with strong circulation extending from low levels to upper levels.
Pressure is around 1000mb, according to Thailand met.

The "94B" is expected to push N-N-W into S.Bengal in next 24hrs.

By 30-May, the system is expected to push upto Bihar and vanish.

In next 24hrs and till 1-Jun, Heavy and Very heavy rain expected for S,central Bengal, N,N-E.Odisha, S.Bangladesh and over most places in N-E states of India.
In following days 30,31-May, the heavy rain will push into Jharkand and Bihar as well.

Today, the W.D circulation is seen over N.Pakistan,.. expected to drift into Kashmir on 28-May ... http://ow.ly/i/2dbEO 

Scattered rain expected for Kashmir till tomorrow evening ... !

@ambaarsaria >> Amristar - at 3pm, the temperature was around 36 C.

#Delhi - Airport, 5pm, is still reporting "Dust storm, Rain with thunderstorm"

#Kolkata - Airport, 5:50pm, has reported "Rain with thunderstorm" .. May be in vicinity !

Nagpur - Airport, 5:10pm, has also reported "Rain with Thunderstorm".

During next 3 days, Showers expected all along Kerala and Karnataka coast ... http://ow.ly/i/2d7vu 

T.showers expected over N,N-E Tamilnadu, S,S-W,N-W,central Karnataka, S,central,N-E.Andhra in next 2 days... http://ow.ly/i/2d7yV 

From Tuesday evening, Heavy wind and rain expected to push into S.Bengal, S.Bangladesh and N,N-E.Odisha due to "94B". http://ow.ly/i/2d7BW 

#Mumbai - From tomorrow, the chance of 2 or 3 showers is high till 1-Jun.

Update on "94B" , "95A" and #Monsoon

4pm, T.showers seen over Jharkand, S.Bihar, most places over N-E states, N-N-E Odisha and N-W.Karnataka.. http://ow.ly/i/2d6Bw 

Today, a strong circulation is seen over N.Bay ... http://ow.ly/i/2d6CE 

The N.Bay circulation is tracked as "94 B" for Depression / Cyclone formation... NOT possible due to close proximity to land.

Present cloud mass over N,N-central, central, W.Bay is due to this "94B".. http://ow.ly/i/2d6Ii 

Another circulation is over Arabian sea near Oman coast... tracked as "95 A" ... http://ow.ly/i/2d6KO 

Here's the latest satellite visible shot of "95A" along Oman coast ... http://ow.ly/i/2d6Mq 

"94B" is good for the Bay and S.Arabian sea wing of Monsoon.. The N.Bay system is expected to persist there for 2 days and intensify.

"94B" is expected to push into S.Bengal and S-W.Bangladesh on 28/29-May ... http://ow.ly/i/2d6RB 

Meanwhile, the "95A" is expected to persist along Oman coast even till 31-May.. with slight intensification ... http://ow.ly/i/2d6U7 

Bay wing of Monsoon is getting a move ahead. By 29 / 30-May, it'll enter in N.Bay along with "94B".

During the past week, the Somali jet has continuously picking strength .. Today, it is well established over S-W,S-central Arabian sea !

By 31-May, the wind speed along S,central Kerala coast will be picking up to near Monsoon strength ... http://ow.ly/i/2d7cT 

Models suggest that the #Monsoon current is expected to reach Kerala,S.Karnataka coast by noon of 3-Jun... http://ow.ly/i/2d7ft 

#HOT at 2pm, Lucknow = 43 C, Nagpur = 41 C, Varanasi = 40 C, Ahmedabad, Jaipur = 39 C.

2:30pm, #Delhi airport has reported "Widespread Dust, Dust Storm, Rain with Thunderstorm" ... but temperature is around 41 C.

#Chennai - 2:30pm, High cloud cover continues, temperature is around 35 C. Mild breeze from N-N-E.

Cloudy Mumbai morning with mild rain !!

RT @tdadvait: @weatherofindia some raindrops sprinkling in Mumbai now... ahaa........ (7:47am)

"There were light rain showers at Tivim Goa at 1.00am. It is still hot and humid."- Posted by reader in our Facebook http://ow.ly/lpSJ6 

RT @kal0l: Aah finally some rain in Mumbai. (8:24am)

RT @rajennair: Today morning from my window the rain cloud hovering over Mumbai skies followed by slight drizzle http://t.co/xwWWhS3XwA (8:27am)