Tuesday, May 25, 2010

Ganga Nagar Head Bay Trough may form




From Ganga Nagar to Head bay the [monsoon] trough line may slowly form. As pointed out by somebody that the remenants of cyclone LAILA drew more [monsoonal] winds and is enabling formation of pressure gradient in the east coast/ Bay. [It is presumption only]






7pm, Thunder cells over Central & N-E Orissa, S. Kerala coast, Central and N. Tamilnadu... http://ow.ly/i/1K7k
RT @Monsoonexpress: The rain, fish fry and the scenic beauty... that's what I mae of Guwahati so far and I am loving it!:))
Rainfall over South Kerala and South Extreme Tamilnadu on 24-May.. Varkala (Thiruvananthapuram dt) 6, Thuckalay (Kanyakumari dt) 5 CM
5:30pm, Showers has become subdued over S. Kerala, while a lone Thunder cell can be seen over W. Bengal & Uttarakand... http://ow.ly/i/1K2M
RT @manoj_kn1: it's raining here in Cochin, Kerala, India now (4:34pm)
RT @asutoshjg: It's raining all the time here in Trivandrum. I'm really lovin' it. (3:53pm)
RT @bjuvincent: Trivandrum is showered by rain...............getting cool day by day........this year's rain is little bit early... (3:57pm)
Chennai - Wind direction slowly switching to S-E... temp. now 4:07pm is 35.7°C
Chennai - The present S-W wind will not cool things, in fact it'll be HOT... When the sea breeze (from East) sets in the temp. will go down.
Chennai - temp. race is still on .. now 3:09pm, 40.5°C
Chennai - Heat pump is still ON... maintaining above 40 deg C for the past 1 hr.. now 2:50pm, 40.5°C
2pm, No thunder cells yet over India, Sharp showers over S. Kerala continue, Last remnant of LAILA vanishes over N. Bay. http://ow.ly/i/1JUe
RT @chennaiweather: Why IMD is not declaring monsoon in Kerela? when it is raining in Kerela? Are they waiting for their date to come true?
Chennai - Another high temp. just now... 40.8°C (2:40pm)
RT @Gai3pradeep: @karthinair Nights are always cooler in Kerala! Here i dont step out of office even for a short break!:)
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Rain map of 24-May, shows .. showers over N-E states, Orissa and over S. Kerala ... http://ow.ly/i/1JTQ
No large change is likely in maximum temperatures over northwest and adjoining central India during next 48 hours
A fresh western disturbance is likely to affect northwest India from 27th to 29th
Incursion of moisture is taking place over northeastern states under the influence of strong southerly/southwesterly winds
Rain on 24-May, Port Blar-6, Guwahati, Chaparmukh & Punalur-4, Shantiniketan, Bankura, North Lakhimpur, Tezpur, Bhubaneswar, Kottayam-3 CM
On 24-May, highest maximum temperature of 48.2°C has been recorded at Kota (Rajasthan)... Chennai far behind..!!
Severe heat wave conditions are prevailing over isolated pockets of Rajasthan and Madhya Pradesh
Chennai - temp. now 2:25pm is 40.2°C
RT @jobinVJ: Monsoon strtng in kerala. Alex Frater's 'chasing the monsoon' z a v.gd rain read.
Chennai - WOW... temperature touched 40 ... 40.5°C (2:15pm) ... 1st 40 of the Year 2010.
Cyclone over Arabian sea will disrupt the monsoon dynamics along Kerala coast.. http://ow.ly/1Ps5O
Laila system is not seen as intensifying appreciably to exert further “pull” pressure on the monsoon along Kerala.
Prof Paul Roundy at the University of Albany has been alluding to the development of a system in the southeast and east-central Arabian Sea.
Cyclone formation and its strengthening just before the onset of monsoon could have an adverse impact over dynamics along the Kerala coast.
US NCEP showed a calibrated rise of rain activity along the southwest coast of India during the course of this week.
IRI for Climate at Columbia University saw a spurt in rainfall around the extreme southern peninsular point around 27-May

Churn in Arabian Sea makes forecasters sit up


A remnant circulation from cyclone Laila has waded into the Bay of Bengal and set up a fresh low-pressure area on Monday.
The system is not seen as intensifying appreciably to exert further “pull” pressure on the monsoon, currently regrouping over the southeast Arabian Sea.
This part of the Arabian Sea is showing signs of some churn, but would need to be watched for likely formation of a system and its subsequent strengthening.

ONSET DYNAMICS


System formation and its strengthening just before the onset of monsoon could have an adverse impact over associated dynamics along the Kerala coast, as witnessed in the past few years.
A strong system (or an untimely cyclone) in the Arabian Sea before the monsoon flows have settled into the ideal pattern could see itself being driven north either along the west coast or away from it, and rob mainland India of precious moisture.
Otherwise, conditions are evolving for the onset over the next two-day period, according to Dr C.K. Rajan, Professor-in-charge, Chair for Climate Change at the Kochi-based School of Communication and Management Studies (SCMS).
The system behaviour would become clear in 12 to 24 hours after the Laila remnant in the Bay expectedly dies a natural death and its impact on the monsoon flow wanes, Dr Rajan told Business Line.
Prof Paul Roundy at the University of Albany has been alluding to the development of a system in the southeast and east-central Arabian Sea and, in the latest update of May 20, he has maintained the outlook.

CONVECTIVE CLOUDS

An India Meteorological Department (IMD) update said that satellite imagery showed convective clouds over parts of northeast, east-central and adjoining west-central and southeast Bay of Bengal, the Northeastern States, Gangetic West Bengal, Kerala and south Arabian Sea.
The satellite picture update for aviators put up by the International Civil Aviation Organisation also showed convective clouds massing around the region late on Monday evening.
Winds in the south Arabian Sea are southwesterly becoming westerly to the north of 5 degree Latitude, and this wind profile would need to extend north to the 10 degree N latitude for onset conditions to generate.
The US National Centres for Environmental Prediction showed a calibrated rise of rain activity along the southwest coast during the course of this week.

RAIN SPURT

The International Research Institute for Climate and Society at Columbia University saw a spurt in rainfall around the extreme southern peninsular point around Wednesday and Thursday.
Meanwhile, the IMD said in its forecasts valid until Thursday that fairly widespread rain or thundershowers would occur over Kerala, Lakshadweep and the Andaman and Nicobar Islands.
Fairly widespread rain or thundershowers have been forecast also over the Northeastern States during this period as moisture incursion continues under the effect of strong southwesterly flows from the Bay of Bengal.
A western disturbance is expected to cause isolated rain or thundershowers over Jammu and Kashmir, Himachal Pradesh and Uttarkhand during the next 24 hours.
Isolated dust storm or thunderstorms may occur over Haryana, Delhi, Uttar Pradesh and Rajasthan in the northwest and over east India and Karnataka.
South west monsoon and Somali Jet. ... http://ow.ly/1PrUK
@k2a3nu >> Where in Kerala? pls update ur location in Kerala and if possible upload snap shot. Thanks
RT @k2a3nu: it's monsoon bak in kerala.. :) after the tiresom sum , we finaly hav rain .. :) (1:24pm)
India Weather Bureau Assessing Cyclone Impact on Monsoon Rains ... http://ow.ly/1PrDV
Morning, Showers continue over S. Kerala .. http://ow.ly/i/1JPk
Just to inform this startling reading at Nagpur today Morning (Tuesday, 25th. May).
Morning 5.30 am: 36c. Minimum 35.2c !!