Tuesday, April 27, 2010

7pm, http://ow.ly/i/1h2d ... Showers over central Bengal as well ... NO rain in Kolkata.
7pm, http://ow.ly/i/1h2d .... heavy showers over Central, North central Kerala, over Nilgiris (TN) and into South Karnataka.
7pm, Heavy showers from Pakistan is seeping into West Rajasthan .. http://ow.ly/i/1h2d
What is "TXLAPS".?? and something about South West monsoon - 2010 .. http://ow.ly/1DCve
Tamilnadu "Anthi Mazhai" ... http://ow.ly/1DCu2

What is "TXLAPS".?? and something about monsoon - 2010

TXLAPS (Tropical eXtended Area Prediction System)
(A joint effort between Northern Territory Regional Office and NMOC) TXLAPS is a version of LAPS customised to describe the tropical atmosphere. In particular an attempt is made by Australian Weather Bureau to capture areas of convection that are observable as cloud formations on satellite imagery and which can lead to
the development of tropical depressions. In addition to available conventional data, input to the analysis includes bogus moisture values derived from satellite cloud imagery. Tropical Cyclones are incorporated into the analysis using a bogus system operated by Darwin RSMC staff. The first guess field for this analysis is a forecast from GASP. TXLAPS currently operates over the domain 48oN to 45oS and 60oE to 143oW with a grid spacing of 0.375o.
Thanks: Australian Weather Bureau


As SSET(one of our regular reader) asked the pictures depicts the wind pattern at specified level and the colors represents the speed in knots and the arrow head shows the direction of the flow.
However region specific data will be more useful and pronouncing.
It is too early and winds will be pseudo in nature. It has to be attested with other factors also. Any how it is pre monsoon period and the developments indicates that this year 2010 monsoon may be NORMAL.{But one has to be cautious in that also.)
Cross Equatorial Flow has not strengthened. ITCZ is below 5 Deg North and NOT pronounced in our region.

Posted by Mr. Anonymous

Tamilnadu "Anthi Mazhai"

I hope you consider heavy rain as the rainfall greater than equal to 65.0mm.
Evening TS [Anthi Mazhai] from moderately developed towering cumulus will last for minimum 20-40 minutes and rainfall will be around 3-5 cm. The down burst will bring the temperature down by 2-3 degree. Occasionally developed TS will last for more than one hour and accumulated rainfall will be 6-8 cm.[This is w.r.to Tamilnadu, not the NE states where the night time TS gives copious rain]

Posted by Mr. Anonymous
RT @sudhanshuojha: its raining in bangalore.. yee
RT @sudhanshuojha: its raining in bangalore.. yee
RT @Ssaaju: @weatherofindia Lovely weather in whitefield Bangalore. Want to go on a long ride on bike now. Its raining now!!
@finaznaha >> Please update daily weather situation from your local place. Thanks visit www.indianweatherman.com
http://ow.ly/i/1gXM ... Heavy showers along central, North Kerala and over Western ghats region of W. Tamilnadu.
What's happening over South East Bay of Bengal .. Any low pressure system ?? .. http://ow.ly/i/1gXM
5:30pm, Thunder cells over Rajasthan, Punjab and W. Pakistan.. http://ow.ly/i/1gXM
@shibu2626 >> Is it raining there? Please update. Thanks
4:30pm, Thunder cells also visible over N. Kerala, N. Coastal Karnataka, N-E Andhra, Orissa and S-W Bengal .. http://ow.ly/i/1gVL
4:30pm, Showers over S. Punjab and S. Rajasthan as well .. http://ow.ly/i/1gVL
4:30pm, Heavy showers over central Kerala .. http://ow.ly/i/1gVL
RT @mercuryman3a: RT @mystikalindia: Non stop fireworks in sky in Kochi. Raingods have blessed again this summer with cool shower
On 26-Apr, maximum temperature fell appreciably at one or two places over Telangana, Tamilnadu.
South India Rain on 26-Apr, Linganamakki (Shimoga dt) and Mavelikkara (Alapuzha dt) recorded heavy rainfall of 9 and 8 CM
RT @amalji: For the last 3 days, at 4pm, Kochi gets windy, then cloudy, and then rainy. This has to be the coolest and hottest summer ever
RT @binoyxj: Ohh! Its raining heavily and the rain drops are like elephant pee.Big it is :D kochi
From our Web site reader "Heavy rains accompanied by strong winds lashing Kochi now..:-) "
RT @EcoSeed: Nepal responsible for building South Asia's first micro hydroelectric center http://bit.ly/brrOLG nepal hydroelectric
RT @seenu_s: suuuuuuuuuuuuuuuuuuuuuuuuuuper rain cumin up i gez! :)) :D Cochin Kochi
Present westerly system would spark off rain or thundershowers over Kashmir and Himachal Pradesh during the next 24 hours before scaling up.
"TROUGH TRIPLE" ... http://ow.ly/1DxHY
Sahara Dust Storm ... http://ow.ly/1DxHb

Sahara Dust Storm

Dust blew through western Africa in late April 2010, creating a plume spanning hundreds of kilometers. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite observed the dust storm on April 22, 2010. These natural-color images provide a wide-area (top) and close-up (bottom) view of the dust storm. The area outlined in white in the top image is the area shown in the bottom image.
The region affected by this dust storm includes not just the Sahara Desert but also the Sahel, a semi-arid grassland region bordering the massive desert on the south. The dust plume hovers primarily over Burkina Faso and Mali. Straddling the border between Burkina Faso and Niger, an especially thick layer of dust appears to push southeastward. The billowy appearance of the dust and the relatively clear skies to the southeast suggest that this is an advancing wall of dust.

Top heat stays pinned down to East

The ‘trough triple' continues to bear typical pre-monsoon weather over the north-west, east and south while keeping the top heat pinned to the east and adjoining east-central India.


Heat wave conditions prevailed over isolated pockets of Bihar, east Uttar Pradesh, Jharkhand, Vidarbha, Telangana, north coastal Orissa and north Rajasthan.

The spike in mercury over north Rajasthan could be traced to the arrival phase of a fresh western disturbance, whose ‘hot head' up front induces incremental warming of the atmosphere.

Maximum temperatures may rise by 1 to 2 deg Celsius over parts of northwest and central India during the next two days and decrease thereafter from weather triggered by the westerly system.

The warming is caused by the rising motion of air in the westerly's front from a heated up surface. It cools down the air with gain in height and sets up weather in dust storms, rain or thundershowers during this time of the year.

No significant change is seen in day temperatures over east India during this period, an IMD outlook said.


Yesterday's trough triple were more or less traceable at their respective locations in the northwest, east and south of the country.

The most prominent among them is the north to south-aligned one running down from east Bihar to the extreme south of Tamil Nadu. It snaked down across Jharkhand, Chhattisgarh, east Vidarbha, Telangana and interior Karnataka.

Additionally, it featured embedded upper air cyclonic circulations hanging in over east Bihar, east Andhra Pradesh and adjoining Karnataka, and Tamil Nadu and neighbourhood.

Towards the northwest, an upper air cyclonic circulation induced by the inward movement of a western disturbance was traced to central Pakistan across the international border.

The eastward movement of the combine could bring it drifting into position over northwest India over the next few days.

The IMD has said in its outlook that a fresh western disturbance is likely to affect the western Himalayan region from Monday onwards. It could go on to affect the western Himalayan region over the next four days.


Satellite imagery indicated the presence of convective clouds capable of generating rain or thundershowers over parts of the north-eastern States, south-east Bay of Bengal, south Andaman Sea, south Arabian Sea, the Comorin area and the Gulf of Mannar.

Low to medium clouds (partly-clouded conditions) were seen over the western Himalayan region and south peninsular India.

The forecast, valid for the next two days, said that fairly widespread rain or thundershowers would occur over Arunachal Pradesh, Assam and Meghalaya, while it would be scattered over Nagaland, Manipur, Mizoram and Tripura.

A warning valid for the period said that an isolated thunder squall may occur over the north-eastern States, West Bengal, Sikkim, Bihar, Orissa and Jharkhand.

The proceedings could perk up further from Saturday as the western disturbance livens up the resident trough leading to a more active mop-up of moisture from the Bay of Bengal.

Presently, the westerly system would spark off rain or thundershowers over Jammu and Kashmir and Himachal Pradesh during the next 24 hours before scaling up in intensity.

The rains would filter into adjoining plains of the north-west, with Uttarkhand, Punjab, Haryana, north Rajasthan and West Uttar Pradesh bracing to slip under the same from Wednesday.

Scattered rain or thundershowers would occur over sub-Himalayan West Bengal and Sikkim, Kerala and coastal Karnataka during this period, in tandem with the fluctuating fortunes of the north-south trough.

Rains would be isolated over Jharkhand, Gangetic West Bengal, south Chhattisgarh, Orissa, Andhra Pradesh, Lakshadweep, interior Karnataka, Tamil Nadu and the Andaman and Nicobar Islands.
RT @EcoSeed: Green vehicles star at the Auto China 2010 http://bit.ly/ceyTfs BeijingInternationalAutomotiveExhibition greencars
Rain map of 26-Apr, Heavy and widespread over N-E states and South Extreme peninsula .. http://ow.ly/i/1gSs
Rainfall activity would increase over northeastern states and east India.
Heat wave conditions are prevailing over parts of Himachal Pradesh and isolated pockets of north Rajasthan, Bihar and Gangetic West Bengal.
On 26-Apr, highest maximum temperature of 44.5°C was recorded at Sri Ganganagar (Rajasthan)
2:30pm, Showers also seen over Orissa .. http://ow.ly/i/1gSg
2:30pm, Fresh western disturbance is over Kashmir, Punjab and Himachal .. http://ow.ly/i/1gSg
2:30pm, Thunder showers again over South Tamilnadu and SOuth Kerala .. http://ow.ly/i/1gSg
Chennai - Light showers expected in Chennai this weekend - BBC Weather
Heavy showers to continue over N-E states ... http://ow.ly/i/1gPd
Afternoon showers to continue over S-W coast of Peninsula over Karnataka, Kerala and South Extreme Tamilnadu .. http://ow.ly/i/1gPd
12:30pm, South extreme peninsula over South TN & Kerala are heavily cloudy. Getting reports of some rain .. http://ow.ly/i/1gPa
RT @rajugana: @weatherofindia:- Hyd - Only slight drizzle yesterday in some parts... but overcast sky n cool breeze overall
Chennai - Touched a max of 35.9°C (11:19am).. with breeze from S-E continues.
Brahmaputra in spate in the Dibru-Saikhowa National Park on Sunday.. http://ow.ly/1Dt0u
Chennai - "Current dry phase enters 111th day" ... When'll the first rain come ??
All thru the night the South Bay East of Srilanka was very active with lots of thunder storms .. http://ow.ly/i/1gJt
8:30am, S-E coast of Tamilnadu is having an isolated thunder cell and South Gulf of Mannar is also active ... http://ow.ly/i/1gJt
Yesterday night Coastal & Western Ghats of Karnataka got heavy showers .. http://ow.ly/i/1gJm
RT @blessenonly: I love the climate that we have at kerala now. Rain in the evening makes the atmosphere so cool and fresh...
RT @rajesh26: @weatherofindia Mah's hottest Brhamapuri 44.1c, Mum Scrz 36.5c, M'Shwar 33.7c, Pune 40.4 n Thane (Suburb) 40.6c(AWS).
RT @rajesh26: @weatherofindia A stray thunder cloud seen east of Mumbai over the ghats in the evening. (26-Apr)