Sunday, July 31, 2016

July 31, 2016 at 12:28AM

11:30pm, raining in tripura sepahijala district last two hour with gusts & lightning. #weather

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Saturday, July 30, 2016

July 30, 2016 at 10:39PM

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July 30, 2016 at 10:37PM

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July 30, 2016 at 10:35PM

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July 30, 2016 at 10:33PM

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July 30, 2016 at 10:25PM

3pm, heavy thunder Storm in Bhubaneswar. #weather

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July 30, 2016 at 10:21PM

Another rainy afternoon for #Delhi . #weather

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July 30, 2016 at 11:40AM

10:45am, drizzzly Rohtak. #weather

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July 30, 2016 at 11:31AM

A super #weather pic from Shahdol, evening of 29-Jul.

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July 30, 2016 at 11:29AM

29-Jul, another rainy afternoon. #Delhi #weather

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July 30, 2016 at 11:27AM

Bangalore flooded morning, 29-Jul. #weather

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Friday, July 29, 2016

July 29, 2016 at 03:51PM

Chennai 3:30pm, T shower seen over north. Rain expected for city too. #weather

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Thursday, July 28, 2016

July 28, 2016 at 02:17PM

Chennai - 2pm, a lone T cell over NW suburbs of city. Not much movement observed. #weather

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Wednesday, July 27, 2016

July 27, 2016 at 07:41PM

A flood pic from Hosur, Tamilnadu after overnight Heavy downpour. #weather

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July 27, 2016 at 07:38PM

6:30pm, Salem getting ready. 7pm, its raining now. #weather

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July 27, 2016 at 03:39PM

9:11am, #Chennai, a dying T cell seen over ENE. #weather

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July 27, 2016 at 03:36PM

#Delhi another rainy day, 12:30pm, #weather #monsoon

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July 27, 2016 at 03:34PM

11:20am, S-tip w-ghats Tamilnadu, convective activity seen. No sign of SW #monsoon . #weather

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July 27, 2016 at 03:25PM

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Tuesday, July 26, 2016

July 26, 2016 at 05:51PM

Wonderful view of west from Belgaum at 3:56pm. #weather

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July 26, 2016 at 05:50PM

3pm, T showers over East of Alangulam, near Tirunelveli. #weather

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July 26, 2016 at 05:48PM

2:41pm, a pic from rainy #Delhi . #weather

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July 26, 2016 at 05:47PM

Bhubaneswar, 11am, drizzles with low-level clouds. #weather

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July 26, 2016 at 05:25PM

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3:30pm, circulation over S,SE Rajasthan and its N-S trough is making #Monsoon active from North to South #India ..

Analysis show a wind convergence zone over S,SE Rajasthan and S,NW Madhyapradesh ...
A N-S low,mid-level trough seen from this convergence zone upto S-central,SE Tamilnadu !

In next 48hrs, this convergence zone is expected to produce a low-level circulation over S,SE,E Rajasthan, NW M.P ..
Which is then expected to drift NNW, N from Thursday !
The mid-level circulation associated with upcoming circulation is expected to be over S,SE Rajasthan, NW M.P ..
While the upper-level circulation is expected to be tilted SW and expected to be over Gujarat on Thursday !! ...

@vishal_sahetya >> #Gujarat seems to have GOOD news ! In 36hrs
Widespread heavy rain expected over N,central,E,SE ..
In next 42hrs, HEAVY rain expected over S,SE Rajasthan, W,SW,NW,central Madhyapradesh into N,NE Maharastra !
S Karnataka, N,N-central Tamilnadu and S,central Andhra will have more HEAVY rain on today & 27-Jul !
For next 2 days, some heavy downpours also expected over Telangana, E Maharastra and central,N Chatisgarh !

July 26, 2016 at 04:28PM

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July 26, 2016 at 04:27PM

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July 26, 2016 at 04:26PM

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Monday, July 25, 2016

July 25, 2016 at 11:21PM

Bangalore - 11:15pm, moderate showers lashing some zones of city. #weather

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July 25, 2016 at 11:19PM

6:51pm, heavy rain in Vellore. #weather

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July 25, 2016 at 04:50PM

Salem at around 4:30pm, a nearby T cell, almost dead. #weather

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July 25, 2016 at 12:32AM

12am, heavy rain over NE central Tamilnadu, central Maharashtra, S Rajasthan, Telangana. #weather

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Sunday, July 24, 2016

July 24, 2016 at 04:31PM

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Saturday, July 23, 2016

Disapperance of AN-32 in mid Bay of Bengal

It resembles quite to the Helicopter Crash in September 2009 which killed the then AP Chief minister Dr. YSR at Nallmala Hills.  The helicopter was cruising in North South Direction and facing cross SWly wind attenuated by Nallamalla Hills.
[max Ht about 1100m].   The expert committee constituted by Government also pointed out the prevailing weather then as winds from SWLy direction (orographic) and  updrafts and down drafts of Thunder cloud.
Now, AN-32 was cruising at a height about  23000ft [about 7000m=about 425 hPa]  the wind was blowing from 220/10kt on 22.07.2016/about 0900 hrs IST .  Wind veering with height was there.  One has to calculate the wind shear there. But these may not hamper the operation.  Weather may NOT be the emergency...  This may be concluded.  
[Courtesy : Shri A.S.S/ Rtd.ATC officer, VOPC]

43279 VOMM Madras Observations at 00Z 22 Jul 2016

438.0   6876   -9.9  -12.8     79   3.28    213     11  333.3  344.9  333.9
400.0   7570  -14.5  -17.5     78   2.43    195      9  336.1  344.9  336.6


Friday, July 22, 2016

July 22, 2016 at 04:33PM

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July 22, 2016 at 04:29PM

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July 22, 2016 at 04:21PM

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A low,mid-level circulation seen along central,N-coast Andhra, and its N-S trough seen from NNE Madhyapradesh ..
The upper-level circulation is seen weak along #Chennai ...

During next 36/42hrs, the low,mid-level circulation is expected to drift NNW along N coast Andhra ...

in 36hrs, Under this influence, a low,mid-level circulation expected over Madhyapradesh in the Northern part of trough !
In 24hrs, the upper-level circulation is also expected to drift NNW into central coast Andhra... .. which also expected to pop an upper-level circulation along coastal Maharastra. ** Heavy rain ahead **

Next 36hrs, Andhra coast circulation is expected to whip up HEAVY widespread rain over N,central Andhra, Telangana ..

The expected circulation over Madhyapradesh in 36hrs will bring HEAVY widespread rain for S,central,SW,W Madhyapradesh, S,central Chatisgarh
In 36hrs, scattered HEAVY rain also for E,central,N Maharastra.

The Super heavy rains are expected to be along coastal Maharastra, #Mumbai, #Goa and entire Karnataka coast for next 2 days !

Next 36hrs, the #Monsoon axis is expected to give Heavy rain for N,NW,NE Uttarpradesh, N,central Bihar, N Bengal and Sikkim !

July 22, 2016 at 10:35AM

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July 22, 2016 at 10:31AM

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Thursday, July 21, 2016

July 21, 2016 at 01:01PM

Photo from Sagar, Madhya Pradesh, after yesterday afternoon heavy rain. #weather

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July 21, 2016 at 12:55PM

Near Gulbarga after heavy rain. Records 127mm till 8:30am today. #weather

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Wednesday, July 20, 2016

July 20, 2016 at 09:46PM

Chennai - 6:15pm, sunshine towards sunset after another cloudy day. #weather

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#Chennai - Another night of moderate rain expected. Build-up seen over W,SW near Vellore. Today rain expected to move in from WNW after 12am
#Chennai - IWM Polichalur AWS rainfall during past 3 days...
17th = 9.6 mm
18th = 5.7 mm
19th = 7.5 mm

Latest analysis show a weak low,mid-level circulation along N Andhra, S Odisha ...
But at 500hpa(upper-level) a weak circulation seen near #Chennai coast and S Andhra coast !..
A weak upper-level circulation also seen along central coast Karnataka .. which will whip-up HEAVY rain along coast for next 36hrs !

Monsoon axis is seen along #Delhi , Kanpur and Patna.
W-coast Offshore trough seen from central-coast Maharastra to S coast Karnataka !

5:30pm, Heavy rain over E-central,E India.. especially Bihar, Jharkhand, N Bengal ...
5:30pm, Showers seen along Karnataka coast, N Kerala !

By Friday evening, a LOW is expected along central coast Andhra with a mid-level circulation near S-coast Andhra ..
GFS expects this LOW, circulation to drift W-N-W into central,S Andhra on 23,24-Jul !

Monsoon axis is expected to be present in same location during next 2 days... bringing HEAVY rain for Himalayan foot hills, Bihar, N Bengal.. .. and heavy widespread rain also for N,central zones of NE states of India.
Like today, HEAVY widespread rain also expected over Jharkhand, E Madhyapradesh, N,central Chatisgarh during next 2 days !

Due to upcoming circulation along Central coast Andhra... HEAVY rain expected over E Maharastra, S Chatisgarh, Telangana, N Andhra.
Scattered heavy rain will persist for 2 days ALL along Maharastra coast, #Mumbai , #Goa, Karnataka coast, N Kerala ...

DRY run for W,SW,central #Gujarat is to continue !
Light/moderate scattered rain for SW,S zones during next 3 days ...

Tuesday, July 19, 2016

July 19, 2016 at 03:53PM

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July 19, 2016 at 03:40PM

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Monday, July 18, 2016

Vitiating SWM Rainfall distribution in Coimbatore district

The SWM rainfall distribution in Coimbatore district has always been a disputed one.  As far as I am concerned, inclusion of Valparai taluk and inclusion of heavy rainfall regions in Valparai taluk continues to boost rainfall figures during SWM period. The SWM rainfall for Coimbatore district would be around  189.6mm only; whereas the Rainfall of Valparai taluk for SWM period is around 3800.0mm.  That is nearly 20 times. The NORMAL in SWM rainfall distribution statement for Coimbatore district does not contain heavy rainfall regions in Valparai Taluk.   Valparai is the only taluk situated in the hills of average elevation about 1100 -1800 meter.  But this heavy rainfall statistics is very important and vital indicative of monsoon activity in Kerala and TN.  
By including Valparai taluk's rainfall the new NORMAL  for Coimbatore district can be deduced with the use of existing normals. (Area weighted) Once it is deduced then the question of  'LARGE EXCESS' rainfall in Coimbatore district will NOT occur.
If taluk wise rainfall distribution is considered then the "vitiating distribution" will NOT at all arise.  

July 18, 2016 at 10:54PM

Ahmedabad - 5pm, a T shower is approaching. #weather

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July 18, 2016 at 05:08PM

Salem, 5pm, seems to be heavy rain ahead. #weather

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July 18, 2016 at 05:03PM

Shahdol - 5pm, rain is near. #weather

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July 18, 2016 at 10:42AM

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July 18, 2016 at 09:33AM

Srinagar - Good early morning downpour. Fully overcast 19.1° C at 9:20am. #weather

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July 18, 2016 at 12:02AM

Chennai - 11:45pm, a good moderate rain system is drifting to W,SW suburbs. Rain is near. #weather

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Sunday, July 17, 2016

July 17, 2016 at 09:33PM

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July 17, 2016 at 09:31PM

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8:30pm, #Chennai - Moderate T showers seen over SW,W,NW,N from city at around from 100 to 200km.

T showers over W,SW of #Chennai are reluctant to move East towards coast.
Shower activity around Vellore is observed for past 4 hrs.
There's LWD running N-S from S Andhra to S-central Tamilnadu .. 8:30pm, Satellite IR shows T-showers all along LWD ..

Another opposing factor for N,central Tamilnadu rains not pushing East is.. an upper-level circulation seen over SW-central Bay !
Here's the chart showing upper-level (500hpa/4.5km ASL) circulation over SW-central Bay near Tamilnadu coast ...

Chennai - can expect rain on Monday evening, And that too if the T-cells pop very near to suburbs or over suburbs / city.
More T showers ahead for N,N-central Tamilnadu into S Andhra, S,SE Karnataka and #Bangalore on Monday, Tuesday !

July 17, 2016 at 05:39PM

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Saturday, July 16, 2016

July 16, 2016 at 01:17PM

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July 16, 2016 at 12:25PM

12:20pm, raining in Tirupathi. #weather

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July 16, 2016 at 12:23PM

11:35am, Bareilly - heavy rain is near. #weather

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July 16, 2016 at 12:19PM

11:31am, pouring in Shahdol. #weather

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