Weather Instagram at April 23, 2015 at 11:56PM

Heavy T showers forecast for Chennai, and many zones along SE India on friday evening, midnight. #weather

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Weather Instagram at April 23, 2015 at 08:46PM

6:20pm, a solitary Thunder cell near Sankarankoil, Tamilnadu. #weather

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Weather Instagram at April 23, 2015 at 08:33PM

6:37pm, Bhubaneshwar - heavy nor'wester. #weather

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Weather Instagram at April 23, 2015 at 08:21PM

Bangalore - 6pm, approaching rain. #weather

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Weather Instagram at April 23, 2015 at 08:18PM

Bangalore - 8pm, raining in sony signal, koramangla. #weather

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Weather Instagram at April 23, 2015 at 04:13PM

Chennai - 4pm, severe T showers over NW at 60 to 100km from city. #weather

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Weather Instagram at April 23, 2015 at 03:51PM

Mysore - 3:44pm, a T shower over North. #weather

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Rainfall forecast for #Chennai from Friday evening to Saturday morning !!
More on this coming up at 4pm !

Yesterday's circulation over S-E Arabian sea has moved west and active in upper-levels only ... http://ow.ly/i/aun6s 

Today, at low-levels 850hpa, a circulation is seen over Bihar, N Bengal.
And
Low-level N-S trough seen from N Chatisgarh to S,S-W Karnataka.
At surface-levels a good N-S trough seen from E Madhyapradesh to N-E Karnataka and N-W Andhra ... http://ow.ly/i/auniC 

In 24 to 36hrs, the low-level circulation over Bihar is expected to persist and drift West ... http://ow.ly/i/aunm3 
Meanwhile, the low-level N-S trough from E-central India to S Karnataka to persist till Friday night ... http://ow.ly/i/aunpp 
On 25-Apr, this N-S trough is expected from Punjab to S Karnataka ... http://ow.ly/i/aunrA 

On Friday, good surface level circulation expected along S,S-central Andhra ... http://ow.ly/i/aunup 

The expected upper-level trough from E-central India to S,S-W Karnataka and to Lakshadweep will take shape in 24hrs http://ow.ly/i/aunyC 
Upper-level N-S trough will be slightly slanted to S-W and will drift East towards West Bay, N-E India on 25,26-Apr http://ow.ly/i/aunDv 

Rainfall forecast 
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Today, scattered HEAVY T showers for W-ghats,W,S-W,S,central Karnataka, W-ghats, interior Kerala to W-ghats,N,N-W Tamilnadu.
Today again... Nor'westers for S,central,N-E Odisha, E Bihar, N,central Bengal ... http://ow.ly/i/aunOv 
Today evening into midnight...
HEAVY T showers for S,central,N-E Andhra and over S-E,E Karnataka .. http://ow.ly/i/aunTE 
Today before midnight...
Some scattered T showers also for S,central chatisgarh
AND
Heavy T showers for many zones of N-E states.

Weather Instagram at April 23, 2015 at 09:32AM

Bangalore - 8:30am, Low clouds moving fast from SW to NE. #weather

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The Sight of the Night !!! 21st April 2015 , Kolkata , Thunderstorm !

On a Total Unprecidental Situation , a Nor'wester Packed with a speed of 116 km/h Lashed the city of kolkata on the evening of 21st April .. 

Monsoon Watch - 2...2015

Further Analysis of the parameters as discussed in MW-1. on Vagaries.