Wednesday, August 28, 2013

Super T.shower S-W from #Chennai, 7:15pm

#Chennai - 7:15pm, massive T.shower system is nearing Kanchipuram, around 80km S-W from city. A slow East moving giant !


#Chennai - 7:50pm, Slow moving massive T.shower system is now over Kanchipuram ... around 70km S-W http://ow.ly/i/2ZQ2m 

#Chennai - 8pm, massive T. shower system approaching from S-W is now showing signs of dissipating ... "may" reach S. Suburbs as drizzle

Showers over S.Kerala and S.Tamilnadu

6:30pm, T.showers seen over S,W,central Tamilnadu, S. Kerala, E. Uttarpradesh, S,S-E Bihar ... http://ow.ly/i/2ZNXF 

6:30pm, Rain also seen over N. Punjab (isolated) ... http://ow.ly/i/2ZNXF

Almost no, N-W movement expected from Bengal circulation, and Weakening !

#Chennai - 5:45pm, Heavy showers seen over North from city (Ponneri zone) at around 25 to 40km. Very less movement seen towards East (Sea)

Today, the low level circulation over Gulf Mannar and Srilanka persists ... and expected to continue for 3 more days. http://ow.ly/i/2ZLQK 

As of 11:30am, the Bengal circulation has drifted N-N-W and its seen over W. Bengal and S,S-E Bihar ... http://ow.ly/i/2ZMdZ 
The Bengal circulation is expected to weaken and vanish over S. Bihar, N. Jharkhand before Friday noon !! Already showing signs of it !

Upper level (500hpa) circulation associated with Bengal circulation is seen over Odisha, S. Bengal .. http://ow.ly/i/2ZMY4 
Present upper level circulation over Odisha is expected to weaken and drift W-N-W upto E. Madhyapradesh, S-E Uttarpradesh, on Friday !

What happened to W,S-W coast? Off shore trough along S-W coast?? NO revival seen for next 5 days !!

Tuesday, August 27, 2013

Vellore Precipitation Summary (1871-1984)


Follow Up Post..Posted on Tuesday Night...

UAC has descended as a sea level Low , BB-11, and as on Tuesday evening iscentred over Southern Bengal. Associated UAC still hovers in the Orissa area. 
The axis lies in the Himalayan foothills, and further the axis runs East towards another low off Vietnam coast.


As forecasted for Tuesday (see vagaries Tuesday Forecast Map), NW regions of UP, Bareilly, Shahbad and Hardoi circles getting rain as seen in the Wundermap of  tuesday evening (below) of Tuesday evening.
Kolkata recieved 22 mms on Tuesday morning till 11.30 am IST.
Northern UP and coastal Bengal and Orissa are receiving heavy rains, with Haldia and Balasore getting 70 mms, Allahabad and Diamond Harbour seeing 40 mms, getting ..and in adjoining Southern Nepal, Dhangadi saw 146 mms, Dadeldhura 100 mms, Birendranagar 72 mms and Nepalgunj 13 mms. Rain figures till 5.30 pm IST.
As forecasted for Tuesday, NW regions of UP, Bareilly, Shahbad and Hardoi circles getting rain as seen in the Wundermap of Tuesday evening. 
Kolkata recieved 22 mms on Tuesday morning till 11.30 am IST.
Northern UP is receiving heavy rains...and in adjoining Southern Nepal,Dhangadi saw 146 mms, Dadeldhura 100 mms,  Birendranagar 72 mms and Nepalgunj 13 mms.
#Chennai - 7:45pm, a lonely T.shower seen over S-W from city at around 100km (West of Chengelpet) .. NO movement seen !

Circulation to pop over Gulf Mannar in next 3 days !

Analysis show a wind discontinuity over Gulf Mannar and adjoining Srilanka. Signs of Weakening South West monsoon air current !

On 29/30-Aug, a low level circulation is expected to be over Gulf Mannar.. this will light up S,central Kerala, Tamilnadu from 29-Aug

This kind of Gulf Mannar circulation and Westerly movement of circulation can be seen when the SW monsoon current becomes WEAK.

Scattered rain over Tamilnadu to scale up from 29-Aug, especially over W,central,S of Tamilnadu and along W-Ghats Kerala

GFS suggests that the entire Arabian sea wing of #Monsoon to go very WEAK from 30/31-Aug. Early !! ??

Heavy rain pushing into E.Madhyapradesh

5:30pm, HEAVY rain over S,S-E. Uttarpradesh, S. Bihar, Jharkhand, E. Madhyapradesh and N. Chatisgarh .. http://ow.ly/i/2Z8ZZ 

5:30pm, T.showers seen over S,central Tamilnadu .. http://ow.ly/i/2Z8ZZ

As of 11am today, the low,mid level circulation is seen along S. Bangladesh and S. Bengal.

From now, the circulation is expected to drift N-W and then West into E. Madhyapradesh on Thursday.
Bangalore - 2:16pm, "Dull Sunshine".

#Chennai - 2:30pm, #HOT , temperature around 34 C and feels like 40 C. LESS chance of rain today !

#Kolkata - 2:40pm, After heavy rain in morning (7 to 10am) , now clouds clearing out with Sun playing hide and seek.

What's up for Tamilnadu, #Chennai during next 2 days?

GFS model suggests, scattered rain for N,central Tamilnadu for today, wednesday.. And it expects the rain to spread and scale-up from 29-Aug

Moderate rain expected for S.Karnataka, Bangalore and S.Andhra during next 3 days... HEAVY rain expected from Saturday.

#Chennai - GFS expects some late evening, midnight moderate rain on today,28,29,30-Aug. Heavy on 29,30-Aug.