Today, a high-level W.D circulation is seen over S-central Pakistan ... http://ow.ly/i/5wr2f A mid-level W.D circulation is also seen almost in same zone and along W Rajasthan. These systems are expected to persist over Pakistan zone and slowly drift East into India on 13/14-May ... http://ow.ly/i/5wr60
Due to this W.D system, on today, 11-May - scattered rain expected over Kashmir, Himachal and T showers over Punjab, N Rajasthan, Haryana. On Monday, 13-May - Heavy scattered rain expected over Kashmir, Punjab, Himachal, N,N-E,W,central,S-W Rajasthan, Himachal, Haryana. Showers are expected for #Delhi on Sunday, 12,13-May ... http://ow.ly/i/5wrcs On 11,12,13-May... scattered T showers expected to pop over N,central,S-W,N-E Rajasthan !
11:30am, analysis of 91B shows that at low-levels (850pa) the system has merged with the N-S trough and now seen from central Chatisgarh to South Tamilnadu along S-E coast of India. At mid-levels (700hpa), a remnant circulation of 91B is seen over Central Chatisgarh, W Odisha and its trough dipping South upto S Kerala, S Tamilnadu.
During next 36hrs, a low-level circulation will pop over Bihar, N Bengal and the trough will drift East into Bay. Same as this the mid-level trough is also expected to drift East into Bay on evening of 11-May. At mid-level, an anti-cyclone will set in over N-central Peninsula.
From 12/13-May, a low-level perfect N-S trough will get established dropping from N Bengal to S Tamilnadu.
Today, before midnight:: Scattered Heavy rain expected over Odisha, N-E Andhra and S,central Chatisgarh. Some T showers may spill into S,S-W Bengal as well. Afternoon, evening - T showers will be back over W-ghats of Kerala and S,central Karnataka. T showers also expected over N,N-E Tamilnadu and into S,S-E Karnataka.
Towards early morning, Showers also expected over S Kerala coast and S tip Tamilnadu coast. Tomorrow(11-May) again, more T showers expected over W-ghats of Kerala and over S tip, S-W,W-ghats of Tamilnadu as well. Aftermath of 91B :: Total rainfall map from 2-May to 8-May tells the story...
Here's a total rainfall stats of What Tamilnadu got from 91B. (compiled by Weather of Kolkata )